1. OUVERTURE ENTRAÎNÉE PAR POINT DE DOULEUR

Êtes-vous confronté à des goulots d'étranglement persistants dans votre chaîne de production de ciment qui érodent la rentabilité? Pour les directeurs d’usine et les entrepreneurs en ingénierie, the clinker cooler is a critical yet problematic node. Les défis opérationnels courants comprennent:
Perte excessive de récupération de chaleur: Inefficient cooling wastes thermal energy, increasing specific heat consumption by 1525 kcal/kgclinker and directly raising fuel costs.
High Clinker Outlet Temperature: Residual temperatures exceeding 100°C+ ambient strain downstream equipment like conveyor belts and elevators, accelerating wear and increasing maintenance frequency.
Inconsistent Cooling & Quality Degradation: Uneven air distribution creates "hot spots," leading to poor quenching that reduces cement strength (lower C3S formation) and can cause false set.
Temps d'arrêt pour maintenance élevé: Frequent refractory damage, grate plate failures, and highpressure fan issues lead to unplanned shutdowns, coûtant des milliers de dollars par heure en perte de production.
Elevated Environmental Footprint: Poor combustion of recycled air results in higher secondary air temperatures at the kiln inlet and potential issues with NOx formation.

Is your current cooler system a source of variable cost and operational uncertainty? The solution lies not in offtheshelf machinery, mais dans une personnalisation de précision.

2. APERÇU DU PRODUIT: ODM Grate Cooler for Cement Clinker

This product is a fully customized, heavyduty reciprocating grate cooler engineered for the efficient cooling of cement clinker from rotary kiln discharge temperatures (~1400°C) to a handling temperature below 100°C + ambiant.

Flux de travail opérationnel:
1. Clinker Distribution: Hot clinker from the kiln is evenly distributed across the full width of the static inlet grate via an adjustable weir plate.
2. Reciprocating Cooling: Hydraulically driven grate rows move reciprocally to transport clinker through multiple cooling zones (typically hot, intermediate, and final). Controlled undergrate compartmentalized fans supply cooling air.
3. Récupération de chaleur: Air secondaire à haute température (8001200°C) is efficiently recovered at the kiln hood and directed back to the rotary kiln as combustion air.
4. Efficient Quenching & Transport: As clinker moves, it is progressively cooled by forced air convection. Fully cooled clinker is discharged to the crusher and subsequent conveying system.

Champ d'application & Limites:
Portée: Designed for integration into new dryprocess cement production lines or as a retrofit replacement for inefficient planetary or older grate coolers in plants with capacities from 1000 à 12,000 DPT.
Limites: Performance is contingent on proper integration with kiln feed chemistry, consistent kiln operation, and adherence to prescribed maintenance schedules. Not suitable for wetprocess plants or alternative fuel operations without specific design adaptations.

3. CARACTÉRISTIQUES PRINCIPALES

Système de plaques de grille modulaire | Base technique: Highchrome alloy casting with optimized venting design | Avantage opérationnel: Exceptional resistance to thermal shock and abrasion; individual plates can be replaced without stopping the entire cooler | Impact sur le retour sur investissement: Réduit les temps d'arrêt liés au remplacement des réfractaires jusqu'à 60% and extends campaign life.

Compartmentalized Air Control | Base technique: Independently controlled highpressure fan units per sealed compartment with automatic damper regulation | Avantage opérationnel: Precise air distribution across the clinker bed depth eliminates hot spots and optimizes heat recovery | Impact sur le retour sur investissement: Improves secondary air temperature consistency by ±15°C, boosting kiln burning zone stability and reducing specific heat consumption.

Système d'entraînement hydraulique avec contrôle de fréquence | Base technique: Redundant hydraulic power units driving grate rows with variable speed control | Avantage opérationnel: Lisse, adjustable clinker transport speed allows finetuning for varying kiln throughputs; high reliability with online backup | Impact sur le retour sur investissement: Minimizes mechanical shock loads, reducing drive system maintenance costs by an estimated 30% année après année.

Advanced Heat Recuperation Design | Base technique: Optimized hood geometry and tight sealing around moving grates | Avantage opérationnel: Maximizes recovery of highenthalpy secondary air while minimizing false air infiltration | Impact sur le retour sur investissement: Field data shows a consistent reduction of 2030 kcal/kgclinker in heat consumption versus outdated designs.

Interface de contrôle de processus intégrée | Base technique: PLCbased system with standard communication protocols (Profibus, Modbus) | Avantage opérationnel: Provides operators with realtime data on pressure gradients, températures, and drive status for proactive management | Impact sur le retour sur investissement: Enables predictive maintenance scheduling and rapid fault diagnosis, preventing costly escalation of minor issues.

4. AVANTAGES CONCURRENTIELS

| Mesure de performances | Norme de l'industrie (Older Grate Designs) | ODM Grate Cooler Solution | Avantage (% Amélioration) |
| : | : | : | : |
| Température de sortie du clinker
(Above Ambient) | ~120 150°C | < 100°C + Ambiant| ~25% de réduction |
| Efficacité de récupération de chaleur
(Température de l'air secondaire.)| Often inconsistent; averages lower target temp.| Consistent delivery at >1050°C target| Jusqu'à 10% more thermal energy returned |
| Volume d'air de refroidissement spécifique
(Nm³/kgclinker) | ~2.0 2.5 Nm³/kgclinker| Optimized to ~1.8 2.2 Nm³/kgclinker| Jusqu'à 15% reduction in fan power consumption |
| Durée de vie de la plaque de grille
(Under Normal Conditions)| ~1218 mois| >24 mois de durée de vie typique| ~50% increase in mean time between replacements|
| Disponibilité opérationnelle
(After first year)| ~9294% availability common|<96% availability achievable through robust design & redondance|<5% relative improvement in uptime|

5. SPÉCIFICATIONS TECHNIQUES

Plage de capacité (Personnalisable): Depuis 1,000 à plus 10,000 Tonnes par jour (DPT) de clinker.
Exigences d'alimentation: Dépend de la taille; primary consumers are compartmentalized highpressure fans (total installed power range: 200 kW – 1500 kW) and hydraulic drive units (50 kW – 300 kW). Tension selon les spécifications de l'usine (par ex., 380V/415 V/6,6 kV).
Spécifications matérielles:
Plaques de grille & Doublures latérales: Moulages en alliage à haute teneur en chrome (Cr content >25%).
Hood & Enveloppe: Carbon steel plate with internal refractory lining in highheat zones.
Grate Frame Structure: Heavyduty welded carbon steel sections.
Dimensions physiques (Example for ~5000 TPD): Environ. Longueur: 35m; Largeur: 6m; Height at hood peak: ~8 m. Fully customized per layout.
Plage de fonctionnement environnementale: Conçu pour des températures ambiantes de 20°C à +50°C; dustladen environment standard.

6. SCÉNARIOS D'APPLICATION

Plant Capacity Upgrade Retrofit

Challenge A midsized plant upgrading kiln capacity from 3200 DPT à 4200 TPD was constrained by an existing cooler causing high outlet temperatures (>130°C) and frequent stoppages.
Solution A fully customized ODM grate cooler was designed for the new capacity within the existing building footprint constraints using a wider but shorter layout with enhanced fan configuration.
Results Clinker outlet temperature stabilized below <95°C+ ambient within six months of commissioning; coolerrelated downtime decreased by over twothirds; total upgrade project achieved payback within two years due to increased throughput stability.

Alternative Fuel Utilization Project

Challenge A plant increasing its use of alternative fuels experienced higher variability in clinker granulometry and temperature at the kiln hoods impacting traditional cooler efficiency
Solution The ODM solution incorporated a reinforced static inlet section ("grizzly") for coarse fragment handling adjusted compartmental airflow logic specifically tuned for greater input variability
Results The customized system maintained consistent bed permeability achieving target secondary air temperatures despite variable feed conditions enabling a successful increase alternative fuel thermal substitution rate from

Energy Efficiency Overhaul

Challenge Facing rising energy costs an older plant identified its outdated planetary cooler as major source inefficiency poor heat recovery contributing excessive specific heat consumption
Solution Replacement with modern ODM grate cooler featuring advanced sealing compartmentalization optimized recuperation ductwork
Results Postinstallation thermal analysis confirmed reduction specific heat consumption kcal kgclinken annual fuel cost savings exceeded million dollars project justification

CONSIDÉRATIONS COMMERCIALES

Equipment pricing tiers are projectspecific based on capacity customization level material selections

Base Configuration Includes core structure standard grate plates basic hydraulic drive compartment fans essential instrumentation Optional features upgrades include:
Advanced alloy grades extended service life
Redundant hydraulic power units missioncritical applications
Full instrumentation package including thermal imaging bed depth scanners
Specialized refractories extreme operating conditions

Forfaits de services disponibles:
Extended warranty coverage critical components years)
Annual inspection maintenance contracts spare parts provisioning
Abonnement aux diagnostics de surveillance à distance

Financing Options We work financial partners offer solutions including equipment leasing longterm payment plans facilitating capital expenditure approvals

FAQ

What key data required provide preliminary ODM quotation?
We require current intended clinkern production rate TPD chemical analysis typical granulometry available plot plan footprint existing ancillary equipment specifications fans dust collectors)

How does new cooler integrate our existing DCS control system?
Our PLCbased control panel designed interface seamlessly via standard industrial communication protocols Profibus Modbus TCP/IP We provide necessary drivers documentation smooth integration your plant DCS

What typical installation timeline disruption production?
For greenfield projects delivery follows overall construction schedule For brownfield retrofits we develop detailed phased execution plan minimize downtime typically involving prefabricated modules Critical path outage typically weeks depending complexity Existing foundation reuse possible reducing civil work time

Can upgraded handle different types fuels?
Yes customization process specifically addresses operational parameters associated alternative fuels refuse derived fuel tires etc This includes material selections airflow management strategies ensure performance longevity under varied conditions

What aftersales support provided?
Support includes comprehensive commissioning supervision by our engineers operator training manuals access technical documentation Ongoing support available through dedicated service team remote troubleshooting assistance guaranteed spare parts supply chain

Des garanties de performance sont-elles offertes?
Yes we provide contractual guarantees regarding key performance indicators KPIs including guaranteed maximum clinkern outlet temperature minimum secondary air temperature specific cooling air consumption subject defined baseline operating conditions