1. OUVERTURE ENTRAÎNÉE PAR POINT DE DOULEUR

Êtes-vous confronté à des goulots d’étranglement persistants dans votre circuit de récupération de l’or ?? Un concassage et un broyage primaires inefficaces ont un impact direct sur le débit, taux de récupération, et les coûts opérationnels. Common challenges with conventional comminution include:

Temps d'arrêt opérationnel élevé: Frequent liner changes and unplanned maintenance on primary crushers halt your entire processing line, coûtant des milliers de dollars par heure en perte de production.
Inconsistent Feed Size for Milling: Poorly calibrated crushing leads to oversize material entering ball mills, reducing grinding efficiency and increasing power consumption per ton.
Consommation d'énergie excessive: Inefficient size reduction technology can make comminution the single largest energy cost in your plant, érosion des marges bénéficiaires.
Coûts élevés des pièces d’usure: Aggressive, unoptimized crushing mechanisms result in premature wear of mortars, meurt, and shoes, leading to high recurring spare parts expenses.
Limited Flexibility for Variable Ore Hardness: Fixedspeed systems struggle with fluctuations in feed material, causing either underprocessing or equipment overload.

Votre exploitation recherche-t-elle une solution robuste, proven solution to create a consistent, optimal feed for your gravity separation or leaching circuits while controlling capital and operational expenditure?

2. APERÇU DU PRODUIT

The modern heavyduty stamp mill is a purposebuilt primary crushing system designed for the reliable reduction of goldbearing quartz ore and hard rock feed material. It serves as a critical first stage in mineral liberation, preparing ore for secondary milling or direct gravity concentration.

Flux de travail opérationnel:
1. Présentation du flux: Runofmine (ROM) ore is fed into a sealed hopper, regulating flow onto the stamp shoe.
2. Cyclic Percussive Crushing: Timbres lourds levés mécaniquement (camshaft or hydraulic) drop onto the ore bed contained within a hardened mortar box.
3. Classement des tailles & Décharge: Le matériau broyé passe à travers une plaque de tamisage perforée à la base de la boîte à mortier. The screen aperture defines the maximum product size.
4. Pulp Handling (Facultatif): Water can be introduced to create a slurry discharge for direct transport to subsequent wet processing stages.

Champ d'application & Limites:
Idéal pour: Primary crushing of quartz veins, hard rock gold ores, and sulphidebearing materials. Adapté aux opérations de moyenne envergure (50500 DPT), modular plant designs, and regions with limited grid power availability.
Limites: Non conçu pour un broyage fin; product size is typically 10mm to 20mm. Less effective for clayrich or highly abrasive ores without modification. Requires firm foundation due to dynamic loads.

3. CARACTÉRISTIQUES PRINCIPALES

Conception de cadre modulaire | Base technique: Preengineered bolted steel construction with vibrationdampening isolators | Avantage opérationnel: Enables rapid site assembly and relocation with minimal civil works; contains operational vibrations | Impact sur le retour sur investissement: Réduit le temps d'installation jusqu'à 40% versus poured foundations, réduire les délais de déploiement des capitaux.

Configurable Stamp Weight & Lift | Base technique: Adjustable cam profiles or hydraulic pressure settings controlling kinetic energy per blow | Avantage opérationnel: Operators can tune impact force to match ore hardness variability without changing mechanical components | Impact sur le retour sur investissement: Maintains target throughput across varying geology, protecting annual tonnage forecasts.

Doublures d'usure interchangeables | Base technique: Modular mortar box and stamp shoes fabricated from highchrome alloy or manganese steel | Avantage opérationnel: Individual liner sections can be replaced during scheduled maintenance; no need for full box replacement | Impact sur le retour sur investissement: Cuts wear part costs by approximately 30% and reduces liner change downtime by half.

Integrated Screen Plate System | Base technique: Perforated discharge screens with quickclamp access panels | Avantage opérationnel: Allows onsite adjustment of final product size by changing screen plates; enables rapid clearing of tramp material | Impact sur le retour sur investissement: Optimizes feed size for downstream processes in under one hour, improving overall circuit recovery.

Lubrification centralisée à la graisse | Base technique: Automated lube points servicing main bearings and lift mechanisms on programmed intervals | Avantage opérationnel: Élimine les erreurs de lubrification manuelle, ensures bearing longevity in highdust environments | Impact sur le retour sur investissement: Prolonge la durée de vie des roulements majeurs d'environ 1520%, prévenir les pannes imprévues coûteuses.

Belt Guarding & Confinement de la poussière| Base technique: Full perimeter guarding with sealed dust skirts at transfer points| Avantage opérationnel: Enhances site safety compliance and controls dust emissions for improved environmental management| Impact sur le retour sur investissement: Mitigates regulatory noncompliance risks and reduces site housekeeping labor requirements.

4. AVANTAGES CONCURRENTIELS

| Mesure de performances | Norme de l'industrie (Curseur de mâchoire) | Notre solution de moulin à timbres | Avantage (% amélioration) |
| : | : | : | : |
| Disponibilité / Temps de disponibilité | ~8590% (downtime for jaw plate changes & tension) | ~9395% (scheduled liner changes) | +58% disponibilité opérationnelle |
| Efficacité énergétique (kW/tonne) | Higher power draw at startup; inefficient with partial loads| Consistent load; kinetic energy focused on bed compression| Jusqu'à 15% lower specific energy per ton crushed |
| Coût des pièces d'usure par tonne (Minerai dur)| High cost for manganese jaws & joues| Lower costperton for alloy shoes/mortar segments| Estimé 2025% réduction |
| Génération d'amendes de produits (1mm)| Lower proportion; more slabby product| Higher proportion of fines due to percussive action| +25% more liberated fines for direct cyanidation |
| Niveau d'émission sonore (dB)| High impact noise from metalonmetal crushing| Muffled noise through ore bed cushioning & boîtiers| ~10 dB reduction at operator stations |

5. SPÉCIFICATIONS TECHNIQUES

Capacité de la gamme de modèles: 50 400 Tonnes par jour (DPT), en fonction de la dureté du minerai et de la taille du produit cible.
Exigences d'alimentation: 30 75 Entraînement par moteur électrique kW (depending on stamp number/weight). Can be configured for diesel power generation.
Spécifications matérielles: Boîte de mortier & Chaussures de timbre: AR400 / Fonte à haute teneur en chrome (2628% Cr). Cadre: Acier de construction ASTM A36.
Dimensions physiques (Typique 100 Unité DPT): Empreinte: 4m L x 3m W x 4m H. Poids approximatif: 12,000 kilos.
Plage de fonctionnement environnementale: Température ambiante: 20°C à +45°C. Indice de protection contre la poussière: Norme IP54.

6. SCÉNARIOS D'APPLICATION

Mine de roche dure de taille moyenne, Afrique de l'Ouest | Défi:A remote site with unreliable grid power required a robust primary crusher with low maintenance complexity and the ability to handle highly variable quartz vein material.| Solution:A threestamp mill system powered by a dedicated diesel generator set was installed as the plant's primary crushing module.| Résultats:The operation achieved consistent 12mm product at 120 DPT. Les données de terrain montrent un 22% reduction in weekly maintenance hours compared to the previous jaw crusher setup, directly lowering flyin technician costs.

Usine de concentration par gravité, Amérique du Sud| Défi:A plant using centrifugal concentrators needed increased gold liberation at the coarse crush stage to improve recovery of freemilling gold without committing to full fine grinding.| Solution:A stamp mill was installed ahead of the existing ball mill circuit to generate more fractured fines (2mm) suitable for direct gravity capture.| Résultats:The modified circuit saw a quantifiable increase in coarse gold recovery at the primary stage by approximately 18%, reducing gold losses to tailings from the subsequent milling circuit.

7. CONSIDÉRATIONS COMMERCIALES

Our stamp mill solutions are offered in three standardized tiers:

1. Niveau d'unité de base: Includes core frame assembly drive motor guards basic discharge chute Designed for integration into existing plant designs
2
3
4
5
6
7
8
9
10
11
12