When it comes to restoring heavy‑duty performance on site, the fastest route is to clean mining equipment using Linetox—a low‑foam, biodegradable alkaline detergent specifically engineered for high‑temperature, high‑pressure applications. By following a systematic prep‑clean‑rinse protocol, crews can cut maintenance downtime by up to 30 % and extend component life by an average of 18 months. For detailed product specs, see linetox.
What Makes Linetox Different?
Linetox is formulated with a blend of active alkalinity, non‑ionic surfactants, and phosphate‑based corrosion inhibitors that work together to dissolve hydrocarbon residues, mineral scale, and abrasive fines without attacking base metals. Key parameters include:
- pH 12.5 ± 0.2 (at 25 °C)
- Active alkalinity ≈ 45 g/L expressed as NaOH equivalents
- Non‑ionic surfactant content ≈ 5 % (HLB 12‑14)
- Corrosion inhibitor concentration ≈ 2 % (phosphate‑based)
- Viscosity ≈ 30 cP at 25 °C (ensuring low‑foam spray)
- Specific gravity 1.06
- Flash point > 100 °C (safe for indoor use)
- Biodegradation > 90 % in 28 days (OECD 301B)
- Effective in water hardness up to 500 ppm CaCO₃
These numbers translate into a product that can be used in both recirculating spray systems and portable pressure washers without excessive foaming, while still delivering a cleaning efficiency of 98 % removal of hydrocarbon films in laboratory tests (ASTM D‑4265).
Safety and PPE Requirements
Even though Linetox is biodegradable, its high pH and surfactant activity demand strict personal protective equipment (PPE). Follow OSHA 29 CFR 1910.132 and the mine’s site‑specific safety plan.
| Task | Required PPE | Notes |
|---|---|---|
| Mixing & Loading | Full‑face respirator (P100), nitrile gloves (≥8 mil), chemical apron | Use a calibrated dosing pump to avoid splashes. |
| Application (Spray/Wash) | Chemical splash goggles, face shield, nitrile gloves, steel‑toed rubber boots | Keep water pressure ≤15 MPa to prevent aerosolization. |
| Post‑Rinse Handling | Standard work gloves, safety glasses | Ensure all residues are removed before handling. |
Pre‑Cleaning Inspection Checklist
Before any cleaning begins, a structured inspection reduces the risk of damage and ensures optimal product performance. Use this checklist:
- Confirm lock‑out/tagout (LOTO) on all powered equipment.
- Record surface temperature (ideal range 40‑60 °C for maximum surfactant activity).
- Verify water supply pressure 2–4 bar and flow rate ≥ 50 L/min.
- Identify residual hydrocarbons (oil sheen, grease) – note location and thickness.
- Check for loose bolts, worn seals, or cracked components that could trap debris.
- Ensure drainage is clear to avoid pooling of cleaning solution.
- Document initial visual condition with photos for later comparison.
Step‑by‑Step Cleaning Procedure
Follow the seven‑stage protocol below to achieve consistent results across diverse mining equipment.
- Preliminary rinse: Use fresh water at ≤1 MPa for 3 minutes to remove loose mud, dust, and large particulates.
- Pre‑spray Linetox: Inject Linetox at 2‑3 % v/v (≈ 1 L of concentrate per 10 m²) using a low‑foam injector. Keep solution temperature 40‑60 °C.
- Dwell time: Allow 5–10 minutes depending on contamination level (longer for heavy oil or mineral fouling).
- Mechanical agitation: Apply high‑pressure wash at 10‑15 MPa or use a rotary brush to scrub stubborn residues.
- Neutralization (optional): If residual alkalinity must be reduced, rinse with a 0.5 % acetic acid solution for 2 minutes.
- Final rinse: Fresh water at ≥2 MPa for 2 minutes to flush all cleaning agents.
- Drying: Use forced‑air blowers or allow ambient drying; ensure surface temperature ≤ 50 °C before re‑lubrication or reassembly.
Reference: ISO 8501‑2 (surface cleanliness) can be used to verify that the visual standard “Sa 2½” (