Automatic Coke Reactivity Index and Coke Strength After Reaction CRI CSR Tester

Product Overview

This high-precision testing system is engineered to determine the Coke Reactivity Index (CRI) and Coke Strength after Reaction (CSR) in strict compliance with GB/T 4000-2008 and international metallurgical standards. Designed as a fully automated electromechanical workstation, the equipment integrates high-temperature reaction processing, precision gas delivery, post-reaction mechanical tumbling, and comprehensive digital data acquisition into a single cohesive platform. By automating the entire analytical cycle—from thermal ramping and atmospheric transition to mechanical tumbling abrasion—this unit eliminates manual operational discrepancies, mitigates safety risks associated with high-temperature testing, and delivers highly repeatable metallurgical coke evaluations.

Optimized for primary metallurgical laboratories, integrated steel manufacturing complexes, commercial coking plants, and coal quality research institutes, this testing platform addresses the critical need for rapid, standardized characterization of blast furnace coke. Blast furnace operators rely on precise CRI and CSR metrics to forecast coke degradation, manage gas permeability, and preserve burden integrity inside high-temperature blast furnaces. The equipment provides continuous operational reliability, enabling heavy industrial quality control laboratories to execute round-the-clock testing regimes with complete confidence and minimal operator intervention.

Engineered for exceptional durability under aggressive high-temperature thermal cycling and corrosive gas atmospheres, this testing unit combines a rigid structural footprint with premium thermal and chemical barrier materials. Featuring an automated bottom-loading mechanical drive system, premium nickel-chromium superalloy internal components, and intelligent closed-loop process controls, the system ensures operator safety while guaranteeing superior thermal homogeneity and flow stability. The result is an analytical platform built for high-throughput commercial testing environments where operational precision, occupational safety, and continuous instrument availability are paramount.

Key Features

• Automated Bottom-Drive Electromechanical Reactor Positioning: The equipment utilizes an automated bottom-entry mechanical transmission system that raises, lowers, and positions the high-temperature reaction vessel smoothly, eliminating manual handling hazards and safeguarding structural alignment during intense thermal operations.
• Circular Silicon Carbide Multi-Zone Heating Chamber: Powered by six symmetrically arranged silicon carbide (SiC) heating elements producing a 7 kW thermal output, this system establishes an extended isothermal zone of 150 mm or greater, ensuring uniform peripheral heat flux around the coke bed.
• Microprocessor and Mass Flow Gas Delivery Regulation: Dedicated digital mass flow controllers (MFC) deliver fully independent, automated regulation of high-purity nitrogen and carbon dioxide streams with an ultrafast switching rate of 0.1 seconds, full-scale accuracy within ±1%, and exceptional linear stability.
• Advanced Dual-Mode Thermal Management Architecture: Incorporating industrial PLC automation, the system executes both open-loop stepped heating and closed-loop fully automatic thermal compensation profiles, maintaining tight target temperature stability of 1100°C ± 5°C throughout extended reactive soaking cycles.
• Integrated Toxic Gas Environmental Exhaust System: To safeguard laboratory personnel against carbon monoxide accumulation during high-temperature Boudouard reactions, the unit triggers an integrated automated ventilation system upon test commencement to actively purge hazardous off-gases.
• Dual-Wire Solid-State Linearized Temperature Sensing: High-precision Class 0.5 Type N thermocouples paired with specialized two-wire solid-state transmitter modules provide continuous cold-junction automatic compensation and mathematical linearization for drift-free thermal reporting.
• Corrosion-Resistant Superalloy Containment: The reaction vessel is forged from GH3044 high-temperature structural superalloy rated for continuous service up to 1400°C, while the internal thermocouple elements are shielded by GH3030 alloy protection tubes to prevent chemical embrittlement.
• Multi-Tiered Failsafe and Interlock Network: Comprehensive hardware protections include automated acoustic-optical over-temperature alarms, instantaneous power-cutoff circuitry, thyristor surge isolation, CO2 starvation alerts, and multi-stage 3 MPa pressure relief mechanisms.
• Automated Type I Mechanical Drum Tumbler: Included post-reaction degradation assessment is handled by an integrated Type I abrasion drum operating at 600 revolutions over 30 minutes ± 1 minute, driven by an automated digital counter and programmatic stop controller.
• Direct LIMS Connectivity and Network Integration: Built-in TCP/IP communications firmware allows real-time streaming of temperature curves, gas volumetric flow rates, and computed CRI/CSR indices directly into central laboratory information management networks.

Applications

Technical Specifications

Why Choose This Product

• Uncompromising Thermal and Mechanical Build Integrity: Fabricated with high-grade GH3044 superalloy reaction chambers and GH3030 alloy sensor protection tubes, this platform withstands relentless thermal shocks and caustic Boudouard reaction cycles without dimensional distortion or atmospheric leakage.
• Precision Mass Flow Metrology: Unlike conventional variable-area flow meters prone to thermal and pressure drift, the integrated digital mass flow control system delivers absolute stoichiometric accuracy, sub-second gas changeover, and automated warning systems for insufficient reactant gas delivery.
• Ergonomic and Operator-Centric Automation: By utilizing a motorized mechanical bottom drive to seat and extract the reactor vessel, this equipment eliminates heavy manual lifting and hazardous thermal exposure, while automated laboratory exhaust management actively shields personnel from toxic gas accumulation.
• Seamless Enterprise LIMS Connectivity: Equipped with direct TCP/IP network architecture, the unit bridges the gap between hardware measurement and enterprise reporting, ensuring raw analytical curves, temperature profiles, and derived CRI/CSR figures flow directly into plant management software without manual transcription.
• Comprehensive Pre-Test Diagnostic Intelligence: Integrated simulation routines allow operators to execute end-to-end procedural simulations before committing valuable reagents and specimens, guaranteeing system readiness and eliminating wasted test cycles.

Connect with our technical sales specialists today to request a detailed technical quotation, discuss customized analytical configurations, or schedule an equipment demonstration for your facility.

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