H1: CEMarked Sand & Gravel Washing and Classification Plants: Engineered for Uninterrupted Production and Specification Compliance

1. OUVERTURE ENTRAÎNÉE PAR POINT DE DOULEUR

Managing a sand and gravel operation means contending with persistent challenges that directly erode profitability. Matière première incohérente, des réglementations environnementales strictes, and the relentless demand for higherquality aggregates create significant pressure. Êtes-vous confronté:
Product Specification Failures: Inconsistent silt content or improper particle size distribution leading to rejected loads, plaintes des clients, et un retraitement coûteux.
Eau excessive & Consommation d'énergie: Inefficient washing cycles and outdated pump systems that inflate operational costs and complicate water recycling efforts.
Temps d'arrêt pour maintenance élevé: Défaillances fréquentes des roulements, screen cloth replacements, and pump blockages in abrasive environments, causing unscheduled production halts.
Risques de conformité environnementale: Inability to effectively manage siltladen process water, risking permit violations and site closure.
Opération à forte intensité de main d'œuvre: Reliance on manual adjustment and monitoring to maintain product grade, leading to variability and increased labor costs.

A CEmarked sand gravel washing plant is not just equipment; it is a controlled processing system designed to systematically address these issues.

2. APERÇU DU PRODUIT

A CEmarked sand gravel washing plant is an integrated material processing system designed to liberate, classer, dewater, and clarify aggregates to meet precise commercial specifications. The CE marking signifies compliance with EU health, sécurité, et directives environnementales, ensuring a baseline of operational safety and environmental consideration.

Flux de travail opérationnel:
1. Alimentation & Lavage: Raw feed is introduced into a log washer or scrubbing barrel to break down claybound aggregates and dissolve contaminants.
2. Classement des tailles: Material is screened via vibrating decks or hydrosizers to separate coarse gravel from sand fractions (par ex., grossier, béton, plaster sand).
3. Suppression des amendes & Lavage: Sand fractions are routed through cyclones or screw classifiers to remove silt and ultrafine particles while being cleansed of soluble salts.
4. Assèchement & Stockage: Washed sand is dewatered on fine material screens or in a dewatering tower to achieve a handleable, stackable product with optimal moisture content.
5. Gestion de l'eau: Siltladen process water is sent to a clarifier or thickener for solids settlement, allowing clean water to be recirculated.

Champ d'application & Limites:
Portée: Idéal pour les alluvions, crushed rock quarries producing concrete/plaster sands, and construction/demolition waste recycling. Effective on materials with up to 30% silt/clay content.
Limites: Not suitable for dry processing applications. Feed size is typically limited by the scrubber inlet (souvent <150mm). Highly cemented or conglomerate materials may require primary crushing upstream.

3. CARACTÉRISTIQUES PRINCIPALES

Patented Cyclone Cluster | Base technique: HighG force centrifugal separation | Avantage opérationnel: Consistent removal of ultrafines (down to 63µm) regardless of feed rate fluctuation | Impact sur le retour sur investissement: Guarantees product silt content compliance (<3%), éliminer les rejets de charge.

Modular BridgeBox Construction | Base technique: Préconçu, bolted structural framework | Avantage opérationnel: Reduced site installation time by up to 40% versus weldedsite builds | Impact sur le retour sur investissement: Lower capital installation costs and faster commissioning for revenue generation.

Entraînement à fréquence variable (VFD) Pump Control | Base technique: Precise electric motor speed control for slurry pumps | Avantage opérationnel: Operators match pump output exactly to feed rate; reduces cavitation and wear | Impact sur le retour sur investissement: Les données de terrain montrent 2230% reduction in energy consumption versus fixedspeed pumps.

Système de revêtement résistant à l'abrasion | Base technique: Interchangeable urethane/ceramic liners in highwear zones (blanchisseurs, cyclones) | Avantage opérationnel: Liner life extended 3x over standard steel plates; quickchange design | Impact sur le retour sur investissement: Lowers spare parts inventory cost and reduces downtime for liner replacement by over 50%.

Integrated Process Water Clarifier | Base technique: Lamella plate settling technology with flocculant dosing system | Avantage opérationnel: Récupère >95% d'eau de procédé; produit un gâteau de filtration empilable pour une élimination facile | Impact sur le retour sur investissement: Drastically reduces freshwater intake costs and ensures continuous operation under strict environmental permits.

Système de lubrification centralisé à la graisse | Base technique: Automated delivery of lubricant to all critical bearings | Avantage opérationnel: Ensures bearings in hardtoreach locations are serviced without operator intervention | Impact sur le retour sur investissement: Les tests de l'industrie démontrent un 60% reduction in bearingrelated failures in abrasive wash plant environments.

4. AVANTAGES CONCURRENTIELS

| Mesure de performances | Solution standard de l'industrie | CEMarked Sand Gravel Plant Solution | Avantage (% Amélioration) |
| : | : | : | : |
| Consommation d'eau spécifique (m³/tonne) | 1.5 2.0 m³/tonne recirculated + eau de maquillage

|
| Cohérence du produit (Silt Content Variation) |
| Installation & Temps de mise en service |
| Coût total de possession (5Année Période) |

5. SPÉCIFICATIONS TECHNIQUES

Plage de capacité: Modèles de 50 tonnes par heure (TPH) à 400+ Débit TPH.
Exigences d'alimentation: Charge totale connectée de 75 kW (for compact units) à 450 kW (for full wash plants with clarifiers), typically requiring a 400V / 50Alimentation en Hz.
Spécifications matérielles: Structure primaire: Acier S355JR. Composants haute tenue: AR400 steel plate or NiHard cast iron. Doublures: Customformulated polyurethane or ceramic composite.
Dimensions physiques (Exemple 150 Usine TPH): Environ. longueur: 25m; largeur: 8m; hauteur: 7m (hors trémie d'alimentation). Poids: ~45 tonnes.
Plage de fonctionnement environnementale: Designed for ambient temperatures from 20°C to +45°C with appropriate lubrication specs. Dust encapsulation standard on conveyors; noise emissions below 85 dB(UN) aux postes opérateurs.

6. SCÉNARIOS D'APPLICATION

Concrete Aggregate Producer Challenge Solution Results

Recycled Aggregates Facility Challenge Solution Results

7. CONSIDÉRATIONS COMMERCIALES

CEmarked sand gravel plants are offered in scalable configurations aligned with production needs:

Niveaux de tarification:

Basic Washing Unit: Includes scrubber screen combination unit
Standard Classification Plant: Incorporates log washer
Full Wash & Water Recycling Plant: Complete system with clarifier

Fonctionnalités facultatives: Mobile wheelmounted chassis
Remote monitoring PLC package with data logging
Automatic flocculant dosing system
Additional dewatering screens for specialized sands

Forfaits de services:
1year comprehensive warranty including parts/labor
5year structural warranty
Annual inspection service contract

Options de financement:
Equipment leasing plans
Project financing solutions

8 FAQ

Q What upstream equipment is required?
A A CE marked plant requires pre sized feed material Typically this means pairing it with a primary crusher screen combination unit

Q How does the CE marking impact my site operations?
A The marking provides documented assurance that the equipment meets essential EU safety EMC machinery directives It simplifies insurance approvals demonstrates due diligence supports permit applications

Q What is the typical payback period?
A Based on client data replacing an inefficient legacy system payback periods range from months depending on local aggregate pricing reduced waste lower water costs

Q Can the plant be modified after installation?
A Yes The modular design allows for capacity upgrades addition of extra classification decks integration of new water treatment technologies as your business evolves

Q Fournissez-vous une formation aux opérateurs?
A Comprehensive training is included covering startup/shutdown procedures routine maintenance troubleshooting classification adjustment ensuring your team achieves optimal performance quickly