الشركة المصنعة لشاشة اهتزاز فحم الكوك الصينية
موضوع: Addressing Downtime and Contamination in Coke Screening Operations
1. فتحة مدفوعة بنقطة الألم
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, التعب الهيكلي from highimpact feed, و 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 في الساعة في الإنتاج المفقود. بالإضافة إلى ذلك, أ 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 عملية? The solution requires a machine built specifically for the highimpact, highwear environment of coke processing.
2. نظرة عامة على المنتج
ال الشركة المصنعة لشاشة اهتزاز فحم الكوك الصينية offers a heavyduty, linearmotion vibrating screen engineered for the classification of metallurgical coke, فحم الكوك مسبك, وفحم الكوك البترولي. This equipment operates on a dualshaft exciter system to generate a straightline stroke, propelling material across the deck for efficient stratification.
سير العمل التشغيلي:
1. مقدمة الأعلاف: Coke (0–80mm) enters the screen via a chute, with a feed box designed to absorb initial impact.
2. التقسيم الطبقي: Linear vibration causes larger particles to rise to the top layer while fines migrate to the deck surface.
3. الانفصال: Material passes over polyurethane or perforated steel panels. Undersize falls through; oversize travels to the discharge end.
4. تسريح: Two to three product streams (على سبيل المثال, +50مم, 2550مم, 25مم) are directed to separate conveyors.
نطاق التطبيق: Ideal for dry screening of blast furnace coke, فحم الكوك, and coke breeze. القيود: Not recommended for wet screening applications where moisture exceeds 12%, as this can cause rapid blinding.
3. الميزات الأساسية
HighStroke Exciter Assembly | الأساس الفني: Dualshaft, counterrotating gearbox with eccentric weights | المنفعة التشغيلية: Generates a 10–12mm stroke amplitude, preventing material stratification failure common in coke screening | تأثير عائد الاستثمار: Reduces recirculation loads by 15%, lowering energy consumption per ton processed.
AbrasionResistant Deck Design | الأساس الفني: 12mm thick polyurethane panels with 65 Shore A hardness, or AR400 steel plate options | المنفعة التشغيلية: Withstands the sharp, angular edges of coke particles, extending screen media life by 300% compared to standard rubber | تأثير عائد الاستثمار: Decreases annual media replacement costs by approximately $8,000 لكل سطح السفينة.
نظام شد سريع التحرير | الأساس الفني: Hydraulic or manual wedge tensioners on side plates | المنفعة التشغيلية: Allows a twoman crew to replace a screen panel in under 30 دقائق, عكس 2 hours on bolted systems | تأثير عائد الاستثمار: يتعافى 1.5 hours of production time per changeout, valued at over $20,000 سنويا.
DustTight Sealing | الأساس الفني: Compressionsealed side plates with labyrinth seals on bearings | المنفعة التشغيلية: Prevents fugitive coke dust from entering bearing housings, a primary cause of premature failure | تأثير عائد الاستثمار: Extends bearing service life from 6 أشهر ل 18 شهور, توفير $2,500 per bearing replacement.
Variable Angle Adjustment | الأساس الفني: Adjustable support springs allowing deck angle from 15° to 25° | المنفعة التشغيلية: Enables operators to finetune material retention time for varying coke moisture levels | تأثير عائد الاستثمار: Improves screening efficiency by 5–8% during seasonal moisture changes.
Modular Deck Frame | الأساس الفني: معًا, segmented side plates | المنفعة التشغيلية: Allows for partial deck replacement without removing the entire screen from the structure | تأثير عائد الاستثمار: Reduces structural modification costs by 40% when upgrading to different media types.
HeavyDuty Cross Members | الأساس الفني: 150mm x 150mm hollow structural sections with wear liners | المنفعة التشغيلية: Resists bending and cracking from the impact of 50kg coke lumps falling from a 1.5meter height | تأثير عائد الاستثمار: Eliminates structural weld repairs, which average $3,000 لكل حادثة.
4. المزايا التنافسية
| مقياس الأداء | معيار الصناعة (شاشة عامة) | حل شاشة اهتزاز فحم الكوك | ميزة (% تحسين) |
| : | : | : | : |
| كفاءة الفحص (25mm cut) | 8588% | 9497% | +10% |
| شاشة وسائل الإعلام الحياة (مادة البولي يوريثين) | 46 شهور | 1218 شهور | +200% |
| Bearing Replacement Interval | 6 شهور | 1824 شهور | +200% |
| Changeout Time (سطح واحد) | 2 ساعات | 30 دقائق | 75% |
| مستوى الضوضاء عند 1 متر | 95 ديسيبل(أ) | 85 ديسيبل(أ) | 10 ديسيبل(أ) |
| Structural Warranty Period | 1 سنة | 3 سنين | +200% |
5. المواصفات الفنية
| المعلمة | مواصفة (Model CVS2448) | مواصفة (Model CVS3660) |
| : | : | : |
| سعة (Coke, 25mm cut) | 150-200 طن بالساعة | 300-400 طن بالساعة |
| منطقة الشاشة | 6 م² (24 قدم مربع) | 12 م² (36 قدم مربع) |
| Number of Decks | 2 (خياري 3) | 2 (خياري 3) |
| تردد الاهتزاز | 750–900 RPM | 750–900 RPM |
| Stroke Amplitude | 10–12 mm | 10–12 mm |
| قوة المحرك | 2 س 11 كيلوواط (15 HP) | 2 س 22 كيلوواط (30 HP) |
| Material of Construction | S355J2+N Steel / AR400 Liners | S355J2+N Steel / AR400 Liners |
| وسائط الشاشة | مادة البولي يوريثين (65أ) or Perforated Steel | مادة البولي يوريثين (65أ) or Perforated Steel |
| الوزن التشغيلي | 8,500 كجم | 14,000 كجم |
| نطاق درجة حرارة التشغيل | 20°C to +80°C | 20°C to +80°C |
6. سيناريوهات التطبيق
Steel Mill Blast Furnace Coke Screening | تحدي: A steel producer in Hebei Province was experiencing 8% الغرامات (10مم) carryover into their blast furnace feed, causing permeability issues and increasing coke rate by 5 kg per ton of hot metal. | حل: Installation of a dualdeck Coke Vibration Screen with 25mm and 10mm polyurethane panels. | نتائج: Fines carryover reduced to 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 | تحدي: 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% محتوى الرطوبة. | حل: Implementation of a singledeck screen with a 15° deck angle and 12mm stroke to maintain material flow. | نتائج: Screening efficiency improved from 82% ل 96%. Customer rejection rate dropped from 5% ل 0.5%, securing a longterm supply contract.
Petroleum Coke Classification | تحدي: 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. | حل: Customized screen with AR400 steel deck plates and a 10mm stroke. | نتائج: Screen media life increased from 3 أشهر ل 14 شهور. Maintenance downtime decreased by 70%.
7. الاعتبارات التجارية
مستويات تسعير المعدات (FOB Shanghai Port):
- النموذج القياسي (CVS2448): $45,000 - $55,000 (2ظهر السفينة, polyurethane media, 15 HP motors)
- HeavyDuty Model (CVS3660): $78,000 - $95,000 (3ظهر السفينة, بطانات AR400, 30 HP motors, dust enclosure)
- Custom Engineered Model: $110,000+ (for specific feed chute integration, special alloy construction, or explosionproof motors)
- نظام التشحيم الآلي: $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, الأختام, و 4 sets of screen panels)
- أساسي (1سنة): Remote technical support + 1 onsite commissioning visit.
- غالي (3سنة): Includes Basic + quarterly inspection reports + 10% خصم على قطع الغيار.
- ضمان الأداء: Contractual guarantee of 93% screening efficiency at specified capacity, with financial penalties if not met.
- 30% Down Payment + 70% L/C at Sight (معيار)
- LeasetoOwn: 36month term with 5% buyout at end.
- Deferred Payment: 50% تحت, 50% after 90day performance acceptance.
الميزات الاختيارية:
حزم الخدمة:
خيارات التمويل:
8. التعليمات
س: Can this screen handle the high impact of direct feed from a crusher?
أ: نعم. 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 متر. We recommend a rubber impact panel at the feed point for additional protection.
س: What is the typical lead time for a custom private label order?
أ: Standard models ship in 45–60 days. Customengineered units with specific paint colors or branding require 75–90 days from design approval.
س: How does this screen perform with highmoisture coke (1012%)?
أ: The linear motion and adjustable deck angle help manage moisture. لكن, for consistent performance above 10% رُطُوبَة, we recommend specifying a heated deck option or a dewatering screen design.
س: What is the warranty on the vibrator assembly?
أ: The gearbox and exciter assembly carry a 24month warranty against manufacturing defects. Bearings are covered for 12 شهور. Structural components have a 36month warranty against cracking.
س: Can I use my existing screen media with this machine?
أ: 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.
س: What are the power requirements for installation?
أ: Standard models require 380V/50Hz/3phase. We can supply 460V/60Hz or 690V transformers as an option. The motor starter panel is included.
س: How do you handle aftersales support for international buyers?
أ: 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.