1. ABERTURA ACIONADA POR PAINPOINT

A sua operação de triagem de coque é afetada por, ineficiências dispendiosas? For plant managers and engineering contractors in the metallurgical coke and foundry coke sectors, the vibration screen is a critical yet problematic node. Os desafios comuns incluem:

Cegagem & Transferir: Moisture and fine coke dust adhere to screen decks, blinding apertures and forcing undersized material to carry over. This reduces screening efficiency by 1530%, contaminates product grades, and directly impacts blast furnace burden consistency.
Tempo de inatividade excessivo para manutenção: Traditional screens require frequent shutdowns for deck cleaning, tensionamento, or panel replacement. Unplanned downtime for a primary coke screen can cost over $5,000 por hora em produção perdida.
Fadiga Estrutural & Falha prematura: The abrasive nature of coke and the highcycle operation induce metal fatigue in side plates, cross members, and welds. This leads to catastrophic frame cracks, often within 1218 meses de serviço, necessitating a full rebuild or replacement.
Alto consumo de energia & Barulho: Inefficient drive systems and unbalanced mass designs consume excess power—a significant operational cost—while generating noise levels that exceed 90 dB(UM), creating environmental and worker safety concerns.

Are you seeking a vibration screen solution that delivers consistent product sizing with minimal downtime, engineered specifically for the harsh demands of coke classification?

2. VISÃO GERAL DO PRODUTO

The China Coke Vibration Screen is a heavyduty, linear motion vibrating screen designed for the highcapacity sizing and scalping of metallurgical (alto-forno) coke and foundry coke. Engineered for robustness in highabrasion, highdutycycle environments, it ensures reliable separation of coke breeze from lump coke.

Fluxo de Trabalho Operacional:
1. Alimentar & Distribuição: Sized coke from the crusher or oven is fed onto the screen via a regulated feed chute onto a robust feed deck for even material distribution.
2. Estratificação & Separação: The dualshaft vibrator assembly generates a linear throwing motion, material estratificador. Tamanho grande (lump coke) travels across the deck surface to the discharge end, enquanto subdimensionado (coke breeze) passes through the defined screen apertures.
3. Manuseio de Produto: Separated fractions are discharged via dedicated chutes—lump coke to blast furnace stockhouses or loading bays, and coke breeze to sintering plants or storage.

Escopo de aplicação: Dimensionamento primário (por exemplo, separando >25mm from <25milímetros), scalpings of oven charge, dedusting of crushed coke. Not recommended for extremely sticky materials without specialized deck systems or for wet screening applications without design modifications.

3. RECURSOS PRINCIPAIS

Sistema de deck modular | Base Técnica: As bolas, pretensioned polyurethane or rubberclad steel panels | Benefício Operacional: Os painéis podem ser substituídos individualmente em menos de 30 minutos sem ferramentas especializadas; reduced blinding characteristics | Impacto do ROI: Cuts deck maintenance downtime by up to 70% versus bolteddown steel plate systems.

DualShaft Synchronized Vibrator | Base Técnica: Two contrarotating eccentric masses connected by a synchronization gear | Benefício Operacional: Generates a pure linear motion for efficient material conveyance; allows for adjustable stroke through counterweight configuration | Impacto do ROI: Provides consistent screening efficiency of 9295%, improving product yield and reducing recirculation load.

Construção robusta de estrutura | Base Técnica: Análise de Elementos Finitos (FEA)optimized side plates with reinforced cross beams and continuous welds | Benefício Operacional: Withstands dynamic loads from both material impact and vibration forces; resists fatigue cracking | Impacto do ROI: Extends operational lifespan beyond 60 months under severe duty, deferring major capital expenditure.

DustProtected Bearing Assembly | Base Técnica: Labyrinth seals combined with grease purge system on vibrator bearing housings | Benefício Operacional: Effectively excludes abrasive coke dust from critical bearing components | Impacto do ROI: Increases bearing service life to over 20,000 horas, eliminating a primary cause of unplanned stoppages.

EnergyEfficient Drive System | Base Técnica: Direct coupled IE3class motors with flexible couplings | Benefício Operacional: Reduces power transmission losses; operates at >94% motor efficiency | Impacto do ROI: Lowers annual energy consumption by approximately 812% compared to standardefficiency drives with Vbelts.

4. VANTAGENS COMPETITIVAS

| Métrica de desempenho | Padrão da Indústria | China Coke Vibration Screen Solution | Vantagem (% melhoria) |
| : | : | : | : |
| Eficiência de triagem (dry coke) | 8588% | 9295%| +7% aumento médio |
| Tempo de troca do painel do deck (baralho completo) | 812 horas| 34 horas| ~65% reduction |
| Vida útil do rolamento do vibrador (L10) | ~12.000 horas| >20,000 horas| >66% extensão |
| Consumo de energia (per ton screened) Linha de base = 100%|100%|8892%|812% redução |
| Vida de fadiga estrutural (to first major crack)|1824 meses|60+ meses|>150% melhoria |

5. ESPECIFICAÇÕES TÉCNICAS

Capacidade / Avaliação: Modelos disponíveis em 50 TPH para 1,200 Capacidade TPH para triagem de coque seco.
Requisitos de energia: Motor de acionamento de 5.5 kW para 45 kW (400V/50Hz/3Ph standard). IE3 highefficiency rating.
Especificações de materiais: Placas laterais & quadro: Q345B carbon steel; Plataformas de tela: Hardox 400 wear liners on feed zone; Deck panels: Tensionable polyurethane (PU) or rubberclad steel; Vibrator shafts: 42Liga de aço CrMo.
Dimensões Físicas: Typical unit sizes range from 1.2m x 3m singledeck up to 2.4m x 6m doubledeck configurations.
Faixa operacional ambiental: Temperatura ambiente: 20°C a +45°C; Designed for dustladen atmospheres; Weather covers available.

6. CENÁRIOS DE APLICAÇÃO

[Metallurgical Coke Plant Primary Sizing] Desafio: A major steel plant’s existing screens suffered rapid deck blinding due to residual moisture (~4%), causing inconsistent lump/breeze split and excessive recrushing of onspec material. Downtime for manual cleaning occurred weekly.

[Foundry Coke Producer Product Dedusting] Desafio: A producer needed to remove fines (<10milímetros) from crushed foundry coke to meet strict customer specifications but experienced high noise levels and frequent spring failures on old screens.

[Coke Wharf Screening Station] Desafio: A port facility required robust equipment for final screening before ship loading but faced constant structural weld failures on screens due to saltair corrosion combined with abrasive wear.

[Metallurgical Coke Plant Primary Sizing] Solução: Implementation of two large linear China Coke Vibration Screens equipped with nonblinding PU panel systems on the primary sizing duty.

[Foundry Coke Producer Product Dedusting] Solução: Installation of a midsized China Coke Vibration Screen with an enclosed base pan and rubber shear spring mounts.

[Coke Wharf Screening Station] Solução: Deployment of heavyduty screens featuring hotdip galvanized frames postwelding alongside AR steel liners at all impact points.

[Metallurgical Coke Plant Primary Sizing] Resultados: Eficiência de triagem estabilizada em ≥94%. Deckrelated downtime reduced by over $150k annually in labor and lost production savings.

[Foundry Coke Producer Product Dedusting] Resultados: Fines content consistently below spec threshold (<2%). Noise at operator stations reduced by ~10 dB(UM). Spring replacement intervals extended from quarterly to biennial.

[Coke Wharf Screening Station] Resultados: No structural integrity issues reported after three years of continuous operation

7 CONSIDERAÇÕES COMERCIAIS

Equipment pricing is tiered based on size capacity construction features:
• Standard Duty Series For capacities upto300TPH ideal secondary/check screening
• HeavyDuty Series For primary sizing duties(300–800TPH)
• Extra HeavyDuty Series For largescale plants(800+TPH)

Recursos opcionais incluem:
• Enclosed dust hoods
• Heating systemsfor decks
• Vibration monitoring sensors
• Different panel materials(wire mesh rubber PU)
• Special corrosion protection coatings

Pacotes de serviços disponíveis:
• Basic Package Includes commissioning spare parts kit
• Planned Maintenance Package Covers annual inspection parts discounts
• Full Service Contract Includes predictive maintenance basedon sensor data

Opções de financiamento:
Direct leasing arrangements through partner financial institutions are available as well as milestonebased payment plansfor large projects

8 Perguntas frequentes

Q1 Are your screens compatible with our existing feed conveyor discharge chutework?
Field data shows our engineering team can provide detailed interface drawings ensuring mechanical compatibility We typically require your existing layout dimensions load data

Q2 What isthe expected impacton our overall plant throughput?
By maintaining consistent screening efficiency this solution minimizes bottlenecksin your crushing circuit Industry testing demonstrates plants reporta3–5% increasein usable product output dueto reduced recirculation load

Q3 Do you offer different motion types like circularor elliptical?
For efficient conveyanceof abrasive granular materialslikecoke linear motionis themost effective standard Our design focuseson optimizingthis motionfor maximum longevityand performance

Q4 What arethe standard commercial terms lead time payment structure?
Standard deliveryis14–16weeksfrom orderconfirmation Payment termsare typically30%advance70%against shipment copyof billoflading Other termscanbe negotiatedfor turnkey projects

Q5 Howis implementation handled? Do you providesupervision?
We providecomprehensive foundation drawings electrical schematics Our standard offering includes remote commissioning support Optional onsite supervisionby our engineersis availableas partofa service package