Subject: Addressing Downtime and Contamination in Coke Screening Operations

1. APERTURA IMPULSADA POR EL PUNTO DE DOLOR

Every ton of coke that bypasses your screening system represents lost revenue and potential downstream penalties. Plant managers face three persistent challenges: blinding of screen media due to moisture and fines, fatiga estructural from highimpact feed, y inconsistent cutpoint accuracy that leads to customer rejections. Industry data indicates that unscheduled downtime for screen deck replacement can cost a midsized coking facility upwards of $15,000 por hora en producción perdida. Además, a 2% increase in fines contamination can trigger price deductions of $5–$8 per ton from steel mill buyers.

Are your current screens handling the abrasive nature of metallurgical coke without excessive wear? Can your equipment maintain a consistent 25mm or 50mm separation under 24/7 operación? The solution requires a machine built specifically for the highimpact, highwear environment of coke processing.

2. DESCRIPCIÓN GENERAL DEL PRODUCTO

El Chinese Coke Vibration Screen Private Label Manufacturer offers a heavyduty, linearmotion vibrating screen engineered for the classification of metallurgical coke, coque de fundición, y coque de petróleo. This equipment operates on a dualshaft exciter system to generate a straightline stroke, propelling material across the deck for efficient stratification.

Flujo de trabajo operativo:
1. Introducción al feed: Coque (0–80mm) enters the screen via a chute, with a feed box designed to absorb initial impact.
2. Estratificación: Linear vibration causes larger particles to rise to the top layer while fines migrate to the deck surface.
3. Separación: Material passes over polyurethane or perforated steel panels. Undersize falls through; viajes de gran tamaño hasta el extremo de descarga.
4. Descargar: Two to three product streams (p.ej., +50milímetros, 2550milímetros, 25milímetros) are directed to separate conveyors.

Ámbito de aplicación: Ideal for dry screening of blast furnace coke, coca de nuez, and coke breeze. Limitaciones: Not recommended for wet screening applications where moisture exceeds 12%, as this can cause rapid blinding.

3. CARACTERÍSTICAS PRINCIPALES

HighStroke Exciter Assembly | Base técnica: Dualshaft, counterrotating gearbox with eccentric weights | Beneficio operativo: Generates a 10–12mm stroke amplitude, preventing material stratification failure common in coke screening | Impacto del retorno de la inversión: Reduces recirculation loads by 15%, lowering energy consumption per ton processed.

AbrasionResistant Deck Design | Base técnica: 12mm thick polyurethane panels with 65 Shore A hardness, or AR400 steel plate options | Beneficio operativo: Withstands the sharp, angular edges of coke particles, extending screen media life by 300% en comparación con el caucho estándar | Impacto del retorno de la inversión: Decreases annual media replacement costs by approximately $8,000 por cubierta.

Sistema tensor de liberación rápida | Base técnica: Hydraulic or manual wedge tensioners on side plates | Beneficio operativo: Allows a twoman crew to replace a screen panel in under 30 minutos, versus 2 hours on bolted systems | Impacto del retorno de la inversión: Se recupera 1.5 hours of production time per changeout, valued at over $20,000 anualmente.

DustTight Sealing | Base técnica: Compressionsealed side plates with labyrinth seals on bearings | Beneficio operativo: Prevents fugitive coke dust from entering bearing housings, una causa principal de falla prematura | Impacto del retorno de la inversión: Extends bearing service life from 6 meses para 18 meses, ahorro $2,500 per bearing replacement.

Variable Angle Adjustment | Base técnica: Adjustable support springs allowing deck angle from 15° to 25° | Beneficio operativo: Enables operators to finetune material retention time for varying coke moisture levels | Impacto del retorno de la inversión: Improves screening efficiency by 5–8% during seasonal moisture changes.

Modular Deck Frame | Base técnica: Atornillados, segmented side plates | Beneficio operativo: Allows for partial deck replacement without removing the entire screen from the structure | Impacto del retorno de la inversión: Reduces structural modification costs by 40% when upgrading to different media types.

HeavyDuty Cross Members | Base técnica: 150mm x 150mm hollow structural sections with wear liners | Beneficio operativo: Resists bending and cracking from the impact of 50kg coke lumps falling from a 1.5meter height | Impacto del retorno de la inversión: Eliminates structural weld repairs, which average $3,000 por incidente.

4. VENTAJAS COMPETITIVAS

| Métrica de rendimiento | Estándar de la industria (Pantalla genérica) | Solución de criba vibratoria de coque | Ventaja (% mejora) |
| : | : | : | : |
| Eficiencia de detección (25mm cut) | 8588% | 9497% | +10% |
| Vida de los medios de pantalla (Poliuretano) | 46 meses | 1218 meses | +200% |
| Bearing Replacement Interval | 6 meses | 1824 meses | +200% |
| Changeout Time (Cubierta única) | 2 horas | 30 minutos | 75% |
| Nivel de ruido en 1 Metro | 95 dB(A) | 85 dB(A) | 10 dB(A) |
| Structural Warranty Period | 1 año | 3 años | +200% |

5. ESPECIFICACIONES TÉCNICAS

| Parámetro | Especificación (Model CVS2448) | Especificación (Model CVS3660) |
| : | : | : |
| Capacidad (Coque, 25mm cut) | 150–200 TPH | 300–400 TPH |
| Área de pantalla | 6 m² (24 pies cuadrados) | 12 m² (36 pies cuadrados) |
| Number of Decks | 2 (opcional 3) | 2 (opcional 3) |
| Frecuencia de vibración | 750–900 RPM | 750–900 RPM |
| Stroke Amplitude | 10–12 mm | 10–12 mm |
| Potencia del motor | 2 incógnita 11 kilovatios (15 caballos de fuerza) | 2 incógnita 22 kilovatios (30 caballos de fuerza) |
| Material of Construction | S355J2+N Steel / AR400 Liners | S355J2+N Steel / AR400 Liners |
| Medios de pantalla | Poliuretano (65A) or Perforated Steel | Poliuretano (65A) or Perforated Steel |
| Peso operativo | 8,500 kilos | 14,000 kilos |
| Rango de temperatura de funcionamiento | 20°C to +80°C | 20°C to +80°C |

6. ESCENARIOS DE APLICACIÓN

Steel Mill Blast Furnace Coke Screening | Desafío: A steel producer in Hebei Province was experiencing 8% multas (10milímetros) carryover into their blast furnace feed, causing permeability issues and increasing coke rate by 5 kg per ton of hot metal. | Solución: Installation of a dualdeck Coke Vibration Screen with 25mm and 10mm polyurethane panels. | Resultados: Remanente de multas reducido a 2.5%. Blast furnace coke rate decreased by 4 kg/THM, saving the plant $1.2 million annually in coke costs.

Foundry Coke Processing Plant | Desafío: A foundry coke producer needed to produce a tight 50mm x 80mm specification for cupola furnaces, but their existing screen was blinding due to 8% contenido de humedad. | Solución: Implementation of a singledeck screen with a 15° deck angle and 12mm stroke to maintain material flow. | Resultados: Screening efficiency improved from 82% a 96%. Customer rejection rate dropped from 5% a 0.5%, securing a longterm supply contract.

Petroleum Coke Classification | Desafío: A calcined petroleum coke facility required separation of +6mm and 6mm fractions for anode production, but standard screens suffered rapid wear from the abrasive, angular particles. | Solución: Customized screen with AR400 steel deck plates and a 10mm stroke. | Resultados: Screen media life increased from 3 meses para 14 meses. Maintenance downtime decreased by 70%.

7. CONSIDERACIONES COMERCIALES

Niveles de precios de equipos (FOB Shanghai Port):

• Modelo estándar (CVS2448): $45,000 – $55,000 (2deck, polyurethane media, 15 HP motors)
• HeavyDuty Model (CVS3660): $78,000 – $95,000 (3deck, Revestimientos AR400, 30 HP motors, dust enclosure)
• Custom Engineered Model: $110,000+ (for specific feed chute integration, special alloy construction, or explosionproof motors)

Características opcionales:

• Sistema de lubricación automatizado: $4,500 (reduces manual greasing frequency to quarterly intervals)
• Vibration Monitoring Kit: $6,200 (provides realtime bearing and stroke data for predictive maintenance)
• Spare Parts Package (2year supply): $12,000 (includes bearings, sellos, y 4 sets of screen panels)

Paquetes de servicios:

• Básico (1año): Remote technical support + 1 onsite commissioning visit.
• De primera calidad (3año): Includes Basic + quarterly inspection reports + 10% descuento en repuestos.
• Garantía de rendimiento: Contractual guarantee of 93% screening efficiency at specified capacity, with financial penalties if not met.

Opciones de financiación:

• 30% Down Payment + 70% L/C at Sight (Estándar)
• LeasetoOwn: 36month term with 5% buyout at end.
• Deferred Payment: 50% abajo, 50% after 90day performance acceptance.

8. Preguntas frecuentes

q: Can this screen handle the high impact of direct feed from a crusher?
A: Sí. The feed box is reinforced with 20mm thick AR400 wear plates, and the cross members are designed to withstand a drop height of up to 2 metros. We recommend a rubber impact panel at the feed point for additional protection.

q: What is the typical lead time for a custom private label order?
A: Standard models ship in 45–60 days. Customengineered units with specific paint colors or branding require 75–90 days from design approval.

q: How does this screen perform with highmoisture coke (1012%)?
A: The linear motion and adjustable deck angle help manage moisture. Sin embargo, for consistent performance above 10% humedad, we recommend specifying a heated deck option or a dewatering screen design.

q: What is the warranty on the vibrator assembly?
A: The gearbox and exciter assembly carry a 24month warranty against manufacturing defects. Bearings are covered for 12 meses. Structural components have a 36month warranty against cracking.

q: Can I use my existing screen media with this machine?
A: The frame is designed for modular polyurethane panels (305mm x 305mm) or perforated steel plates. Adapter kits are available for some common OEM patterns, but we recommend using our media for optimal tensioning and life.

q: What are the power requirements for installation?
A: Standard models require 380V/50Hz/3phase. We can supply 460V/60Hz or 690V transformers as an option. The motor starter panel is included.

q: How do you handle aftersales support for international buyers?
A: We provide a dedicated project manager for each order. Remote diagnostics are available via video call. For critical failures, we can dispatch a service engineer within 72 hours to most industrial regions.