1. Why Bulk Handling Systems Suffer from Arching, Rat-Holing and Bridging
In coal-fired power stations, steel mills, cement plants, and chemical bulk terminals, raw materials with high moisture and clay content frequently adhere to steel hopper walls. Over time, material buildup narrows the discharge orifice, leading to complete blockage (arching/bridging) or core flow (rat-holing), causing severe production stoppages and structural vibration damage.
2. Anti-Adhesion & Slick-Flow Mechanics of 8.6M UHMWPE Liners
UHMWPE possesses an exceptionally low surface energy and an ultra-low dynamic coefficient of friction (0.08–0.12). When installed on hopper cones and chutes, it creates an ultra-smooth, self-lubricating surface that prevents fine bulk particles from adhering. Bulk solids transition smoothly from erratic funnel flow to uniform mass flow.
3. Professional Installation & Fastening Engineering
| Design Factor | Standard Practice | Technical Rationale |
|---|---|---|
| Fastener Type | Countersunk weld studs or elevator bolts | Ensures bolt heads sit 1.5mm below liner surface to prevent flow obstruction |
| Expansion Gap | 3–5 mm gap between adjacent panels | Accommodates thermal expansion without panel buckling or warping |
| Top Bevel Edge | 45° chamfer with steel retaining strip | Prevents falling bulk material from penetrating behind the liner top edge |
| Liner Thickness | 10mm, 15mm, 20mm, 25mm, 30mm | Selected based on drop height, particle lump size, and abrasive severity |
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Dezhou Jiasheng Rubber & Plastic Products Co., Ltd. (JSLT®) provides 1:1 custom manufacturing and 5-axis CNC precision machining for industrial clients worldwide.