Raw Material Handling System
Stronger protection. Zero interruptions.
Zone Introduction
Raw Material Handling System (RMHS) is the first stage of steel production.
It continuously supplies essential raw materials like iron ore, coke, coal, and limestone to Sinter Plant, Coke Oven and Blast Furnace.
If RMHS stops → Entire steel plant stops.
High reliability is crucial for uninterrupted steel production.
Process Description
Raw materials coming from railway wagons, trucks, or mines are unloaded into hoppers and transferred through feeders, conveyor belts, and chutes across long distances.
These materials arrive in different sizes — from large boulders to sharp fines.
They are highly abrasive in nature and often contain hard minerals like silica.
- Large pieces fall from a height → High impact force
- Fine particles slide continuously → Intense abrasion
- Moisture converts dust into slurry → Abrasion + Corrosion
- Irregular shapes cause → Gouging of liners
- Vibration and loading cycles → Fatigue cracks
Even thick steel plates wear thin, bend or crack.
Since RMHS runs 24/7, any stoppage directly impacts entire production.
| Application | Problem Observed | Artha Expertise / Solution |
|---|---|---|
| Wagon tippler hopper | Severe abrasion due to heavy impact of raw materials | High chromium Carbide wear-resistant liners for extended service life |
| Wagon tippler side walls | Frequent liner damage due to impact and sliding abrasion | High-strength High chromium Carbide plates for improved durability |
| Apron feeder | Continuous abrasion and impact from large-size material | High abrasion-resistant High chromium Carbide liners for longer life |
| Conveyor transfer chutes | Excessive wear due to impact and material velocity | High chromium Carbide wear plates to minimize wear and downtime |
| Conveyor skirts | Spillage and rapid wear at skirt area | High chromium Carbide liners to reduce leakage and improve sealing |
| Bunkers / Storage bins | Liner wear due to heavy material load | High hardness High chromium Carbide liners for extended life |
| Crusher feed chutes | Severe impact and abrasion during crushing | High chromium Carbide liners designed for high-impact applications |
| Vibrating screens | Plate damage due to vibration and abrasion | Wear-resistant High chromium Carbide liners for longer operational life |
| Stacker-reclaimer chutes | Continuous erosion from material flow | High chromium Carbide plates to withstand abrasion and impact |
| Transfer towers | Structural wear due to falling material | High chromium Carbide wear plates to enhance durability |
| Dust extraction ducts | Erosion from fine abrasive particles | High chromium Carbide liners for erosion resistance |
| Impact beds | Frequent wear and deformation under belt loading | High chromium Carbide wear liners for long-lasting protection |
Areas of Wear & Root Causes
Hopper floors → Impact dents & holes
Chute liners → Sliding abrasion
Feeder liners → Friction + fatigue cracks
Transfer points → Rebound gouging
Conveyor loading → Localized severe wear
Performance Loss & Downtime Impact
Spillage → Unsafe & cleanup downtime
Belt mistracking → Conveyor failure
Frequent patch welding → High maintenance cost
Reduced feed → Production loss
ArcoPlate → Handles impact + sliding abrasion
Recommended Products & Benefits
- Handles impact + sliding abrasion
- Hard surface → Leak-proof operation
- Increased uptime |
- Longer liner life |
- Lower cost per ton