50t/d Lime Shaft Kiln Selection Technical Analysis Report

I. Selection Basic Parameters

Production Requirements: Single kiln daily production of 50 tons of active lime (CaO ≥ 90%)

Thermal Characteristics: Designed thermal efficiency ≥ 78%, calcination zone temperature control range 900-1200℃

Fuel System: Compatible with multiple fuel combinations such as pulverized coal/natural gas/biomass

Environmental Configuration: Bag dust removal + SCR denitrification system must be equipped to meet GB9078-2025 emission standards

II. Technical Comparison of Candidate Models

Technical Indicators JLY50-1.8 HCY50-2.0 BZK50-1.6 Kiln Size Φ1.8×18m Φ2.0×20m Φ1.6×16m Installed Power 55kW 75kW 45kW Fuel Adaptability Pulverized Coal/Natural Gas Biomass Composite Combustion Natural Gas Dedicated Core Advantages Modular Quick Installation Structure Waste Heat Boiler Integrated Fully Automatic Control System

III. Selection Decision Suggestions

Coal-rich areas: JLY50-1.8 is recommended, with a three-stage cyclone dust removal system

Environmental protection key areas: HCY50-2.0 biomass type is preferred, and SNCR denitrification unit needs to be added

Intelligent production needs: BZK50-1.6 is recommended with DCS control system (budget increased by 12%)

​IV. Key implementation points

The raw material pretreatment system must ensure that the limestone particle size is 30-80mm

Refractory materials should be high-alumina (AL2O3 content ≥ 65%)

It is recommended to configure an online activity detector (accuracy ±5%)

V. Economic benefit forecast

The initial investment is about 200,000-250,000 US dollars. Calculated at the current market price, the investment recovery period is about 2.5 years.