Conveyor belt for sticky materials

What is a conveyor belt for sticky materials?

Conveyor belt for sticky materials is a conveyor belt specially designed for conveying materials with high adhesion. Such materials are easy to adhere to the surface of the conveyor belt during the conveying process, resulting in unclean unloading, reduced conveying efficiency, and even blockage. Therefore, the conveyor belt for sticky materials usually needs to have special anti-sticking properties and structural design.

Applicable materials for conveyor belt for sticky materials

Sticky materials usually have the characteristics of high humidity, strong adhesion, and easy adhesion to the conveyor belt surface. Common types include:

Mining industry: ore mud, concentrate powder, tailings slurry, wet coal powder, etc.

Chemical industry: fertilizer granules (wet state), polymer slurry, dye paste, etc.

Food industry: syrup, honey, jam, paste seasoning, wet starch, etc.

Building materials industry: cement raw material, wet sand, concrete aggregate, gypsum slurry, etc.

Agriculture/environmental protection: wine lees, drug residue, livestock and poultry manure, urban sludge, etc.

Types of conveyor belt for sticky materials

Conveyor belt type	Picture	material/structure	advantages	limitations
PTFE coated belt		glass fiber base cloth + Teflon coating	anti-stick, high temperature resistance (260℃), easy to clean	high cost, not resistant to mechanical scratches
Stainless steel mesh belt		304/316L stainless steel braid	corrosion-resistant, breathable, can be washed at high temperature and high pressure	heavy, not suitable for light load and high speed
PU/PVC anti-stick belt		polyurethane/polyvinyl chloride + smooth surface	food grade, flexible, economical	limited temperature resistance (usually <80℃)
Modular plastic belt		PP/PE module splicing	opening holes for drainage, convenient local replacement	low load capacity
Pattern/convex rubber belt		embossed or nail-like structure on the rubber surface	increase friction, anti-slip	slightly difficult to clean

Conveyor belt for sticky materials video

What is the structural composition of the conveyor belt for sticky materials?

The structural composition of the conveyor belt for sticky materials varies according to its type and application scenario, but usually includes a skeleton layer, a cover layer, an edge reinforcement layer, joints and other auxiliary structures (ribs, skirts, guide strips, etc.). The skeleton layer provides the strength and stability of the conveyor belt to ensure that it can withstand the weight and tension of the material during the conveying process. The cover layer is in direct contact with the material, protecting the skeleton layer from wear and corrosion, while providing good anti-stickiness. The edge reinforcement layer enhances the strength of the conveyor belt edge, prevents the material from overflowing from the edge, and protects the conveyor belt from edge wear.

Challenges faced by conveyor belt for sticky materials

① Material adhesion accumulation: The material sticks to the belt surface, resulting in unclean unloading and scaling, which will cause a decrease in conveying efficiency (frequent shutdown for cleaning), thereby breeding bacteria; the belt weight increases and the motor load increases.

② Difficult cleaning: Traditional cleaning tools (such as scrapers) cannot completely remove high-viscosity residues (such as asphalt and syrup), which will cause cross-contamination; corrode the belt skeleton.

③ Deviation and slippage: Uneven distribution of sticky materials leads to unbalanced belt tension, and wet sticky materials reduce the friction coefficient between the belt and the roller.

④ Blockage and backflow: Sticky materials slide down during large-angle conveying, and materials accumulate in narrow spaces (such as interfaces), eventually causing production line interruptions.

How to deal with the problems faced by conveyor belts for sticky materials?

In response to the above challenges, a variety of methods can be used to deal with the problems faced by conveyor belts for sticky materials to improve conveying efficiency and reliability:

Choose the right conveyor belt type and material:

Choose a conveyor belt material with a smooth surface and low friction coefficient, or use a conveyor belt with special patterns to reduce the contact area between the material and the conveyor belt for sticky materials and reduce adhesion. For example, patterns such as herringbone, diamond, and convex dots.

Material type	Recommended belt	Features
Food (dough, sugar)	Teflon coated belt/silicone belt	Non-stick surface, easy to clean
High temperature sticky materials (asphalt)	Stainless steel mesh belt	High temperature resistance (up to 800℃), corrosion resistance
Chemical sticky materials (resin)	Modular plastic belt (PP/PE)	Acid and alkali resistance, removable for cleaning

Install effective cleaning device: Select scraper cleaners of different materials and shapes according to the characteristics of the material, such as rubber scrapers, polyurethane scrapers, alloy scrapers, etc., installed near the head roller to scrape off the adhered materials.

Regular cleaning and maintenance: Establish a regular cleaning system, regularly check and replace worn cleaner parts to ensure its cleaning effect. Regularly check the tension and deviation of the conveyor belt for sticky materials and adjust them in time.

Material pretreatment: Properly pretreat the material before conveying, such as reducing the water content, adding anti-sticking agents, etc., to improve its fluidity and anti-sticking properties.

Technical specifications of conveyor belt for sticky materials

Project category	Technical parameters/configuration options	Project category	Technical parameters/configuration options
Applicable material types	Wet sludge, sugar residue, bean residue, wine lees, paste chemical materials, tailings slurry, etc.	Belt material	PVC anti-stick belt, PU food belt, rubber skirt belt, PTFE Teflon belt, chain conveyor belt
Belt width	300mm–2000mm	Conveying length	2m–30m+
Conveying speed	0.1–1.0 m/s	Conveying inclination	0°–30° (adding baffle is recommended for over 15°)
Structural material	Carbon steel spraying/stainless steel 304, 316	Cleaning system configuration	Polyurethane scraper + brush roller/spray cleaning pipeline
Scraper device type	Manual pressure regulating type, automatic rebound type, spring loaded scraper	Belt surface type	Smooth surface/anti-slip pattern/food grade coating
Roller structure	Parallel rollers, grooved rollers, buffer rollers	Enclosure	Drip shield, sealing shield, material guide sealing chute
Drive mode	Reducer drive/electric roller	Conveying capacity	Determined by belt width + speed (common range 2–80 m³/h)
Temperature application range	-10℃～80℃ (conventional)/≤250℃ (high temperature PTFE belt)	Optional functions	Automatic deviation correction, deviation detection, PLC linkage, spray dust removal system

Application of Conveyor belt for sticky materials

Due to its high adhesion and easy agglomeration, sticky materials are prone to residue, blockage or equipment wear during transportation. Conveyor belt for sticky materials uses anti-sticky materials (such as Teflon, silicone) and special structural design (such as sidewalls and guide strips) to effectively solve the problem of easy stickiness and difficult cleaning of traditional conveyor belts. Conveyor belts for sticky materials are widely used in food processing (dough, wastewater), sewage treatment (sludge), mining (wet coal, tailings), chemical industry (wet resin, adhesive), agriculture (wet grain, feed), building materials (wet slurry) and other scenarios.

Manufacturer of Conveyor belt for sticky materials

Dahan Machinery is a well-known domestic manufacturer of vibrating screens and conveying equipment, providing various industrial belt conveyors, chain conveyors, screw conveyors and other complete line equipment.

Service scope: Provide full-process service from design → manufacturing → installation → after-sales.

Support customization: Anti-sticking structure, closed anti-drip structure, food-grade belt, climbing and lifting structure, etc. can be customized according to user working conditions.

Contact information: You can contact the official website customer service or email to customize the equipment.

My whatsapp: +86 15236742901, e-mail: sale@xxdahan.com

Official website: https://www.dahanmachine.com