Automatic Coke Reactivity and Post Reaction Strength Determination Apparatus

Product Overview

This high-precision testing system is an electromechanically integrated analytical solution purpose-built to determine Coke Reactivity Index (CRI) and Coke Strength after Reaction (CSR) in strict compliance with GB/T 4000-2008 standards. Combining an ultra-stable high-temperature vertical reaction furnace, automated overhead electromechanical hoisting, dual mass flow gas management, and a heavy-duty Type I tumbler drum, the equipment delivers end-to-end automation for pyrochemical metallurgical characterization. By automating high-temperature carbon-dioxide gasification and subsequent degradation testing, this apparatus eliminates operator exposure to hazardous conditions while ensuring peerless procedural repeatability.

Designed primarily for iron and steel manufacturing plants, commercial coking facilities, carbon material research centers, and third-party quality inspection laboratories, the apparatus serves as a benchmark tool for grading metallurgical fuels. It enables fuel engineers to rigorously evaluate the thermal-chemical degradation behaviors of lump coke subjected to intense blast furnace simulation conditions, delivering data critical for coal blending, cost minimization, and burden permeability optimization.

Engineered with industrial-grade silicon carbide heating elements, superalloy reaction chambers, and multi-tier active safety monitoring, the equipment guarantees exceptional thermal longevity and continuous 24/7 testing capability. Facilities investing in this system gain dependable analytical accuracy, high laboratory throughput, complete gas management fail-safes, and unmatched structural durability under prolonged 1100°C to 1450°C operational regimes.

Key Features

• Integrated Electromechanical Hoist Mechanism: Features a rugged top-mounted mechanical transmission system that automatically raises and lowers the heavy superalloy reactor into the furnace bore, eliminating manual physical handling of ultra-hot fixtures, reducing ergonomic hazards, and standardizing cycle transfer rates.
• Precision Silicon Carbide Thermal Zone: Driven by 12 symmetrically arranged silicon carbide (SiC) heating rods delivering up to 7 kW rated power, establishing an extended isothermal zone of at least 150 mm to ensure uniform thermal soaking across the entire coke specimen bed.
• Closed-Loop Fuzzy PID Temperature Architecture: Incorporates high-accuracy Type N or Type S thermocouples paired with an advanced closed-loop fuzzy PID controller that maintains strict 1100°C ± 5°C reaction stability while allowing real-time online parameter adjustments and customizable multi-ramp heating profiles.
• Digital Mass Flow Control System: Utilizes dual digital mass flow controllers (MFC) with ±1% full-scale accuracy to deliver automated, independent regulation of nitrogen (0–10 L/min) and carbon dioxide (0–10 L/min), complete with dual desiccant drying columns and real-time screen-projected flow curves.
• Ultra-Fast Pneumatic Gas Switching: Employs an automated solenoid manifold capable of switching between inert N2 purging and reactive CO2 atmospheres in under 0.1 seconds, maintaining strict stoichiometric timing throughout preheating, reaction, and rapid cooldown stages.
• Automated Hazardous Gas Evacuation: Automatically initiates a dedicated laboratory ventilation exhaust sequence upon test cycle commencement, rapidly venting displaced carbon monoxide (CO) gas to ensure total operator safety and room air turnover.
• Superalloy Structural Metallurgy: Outfitted with high-temperature GH3044 superalloy for both the reaction vessel and thermocouple protection sheaths, offering continuous structural resistance to gas erosion, high-temperature carburization, and thermal shock up to 1400°C.
• Fully Integrated Type I Tumbler Drum: Features an all-in-one motorized tumble drum mechanism with automatic digital rotation counting and auto-shutoff at precisely 600 revolutions over 30 minutes, engineered for sample loading and discharge without requiring drum disassembly.
• Automated Multi-Stage Thermal Alarms: Automatically sounds an acoustic-optic alert when the post-reaction sample core cools to 100°C to signal operators for the subsequent tumbler strength assessment, maximizing labor efficiency across consecutive testing shifts.
• Comprehensive Hardware Protection: Integrated safety interlocks immediately disconnect power in the event of over-temperature conditions, thyristor (SCR) short circuits, thermocouple breakage, or system overpressure, preventing furnace burnout or vessel rupture.

Applications

Technical Specifications

Why Choose This Product

• Uncompromising Thermal and Structural Reliability: Utilizing high-grade GH3044 superalloy for all critical reaction chambers and sensor wells, alongside 12 heavy-duty SiC rods, this system resists the destructive effects of cyclical thermal shock and reactive carbon oxides, ensuring years of dependable operation.
• Precision Process Automation: From automated overhead vessel hoisting and millisecond-grade atmosphere switching to real-time MFC tracking and automated drum shutoff, every variable is digitalized to eradicate human error and produce reproducible CRI and CSR metrics.
• Advanced Multi-Tier Operator Protection: Built with automated toxic gas exhaust control, comprehensive over-temperature shutoff loops, and fracture-resistant alloy thermocouple sleeves, this instrument establishes an exceptionally safe laboratory working environment.
• Full-Cycle Turnkey Architecture: Delivered as an integrated workstation comprising the reaction furnace, mechanical hoist, dual-gas manifold, Type I tumbler drum, computing workstation, and automated data reporting software, enabling immediate laboratory commissioning.

Contact our technical sales team today to request a formal quotation or discuss custom engineering options tailored to your facility's testing throughput requirements.

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