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Step Moving Fire Grate

Step Moving Fire Grate is a premium fire grate manufacturer and supplier specializing in high-quality and durable fire grates. As a trusted supplier, we provide a wide range of fire grates designed to fit various fireplaces and heating systems. Discover the superior craftsmanship of our Step Moving Fire Grates—contact us for more information today!

Port: Shanghai, China
Production Capacity: 100000 Pieces/Year
Payment Terms: T/T
Customized: Yes
Surface Treatment: Natural
Applications: Power station
Material Standard: ASTM A297/En10295
Property: Heat Resistant / Wear Resistant
Wood Case: 500mm*150mm*100mm
Availability:
Quantity:
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Product Specifications

ParameterDetails
Operation MediumWater / Hot Water / Steam
Grate CoolingWater-cooled
Operating Range300 - 4200 kW
Capacity AdjustmentModulating
Moisture ContentM 8 - 44
Fuel TypeWaste Wood / Residual Wood / Pellets / Alternative Fuels (Grains, Corn, etc.)
Grate FeaturesWater-cooled grates, overlapping grate rods to prevent fuel leakage, uniform air distribution for stable gasification
Grate MotionHydraulic drive with automatic adjustment of movement intervals
Combustion ChamberWater-cooled with refractory lining to withstand high temperatures

Step Moving Fire Grate by XinRuiJi is designed for efficient and versatile combustion systems. It is suitable for a wide range of fuels, including waste wood, residual wood, pellets, and alternative fuels. It can also handle special fuels like grains, corn, shredded wood, and industrial pellets.


This fire grate operates on water, hot water, or steam as the medium. It features water-cooled grates, ensuring effective cooling and long-lasting performance. The system runs efficiently within a power range of 300 to 4200 kW, making it adaptable to various heating needs.


The grate’s unique design includes overlapping grates on both sides to prevent fuel leakage. This design helps to create a stable gasification zone with uniform air distribution across all regions. The grate motion is automatically adjusted via hydraulic drive, optimizing fuel combustion.


The combustion chamber is fully water-cooled and lined with refractory material, ensuring it can withstand high-temperature conditions while maintaining required cooling. The Step Moving Fire Grate is ideal for industrial and biomass energy applications, offering reliable performance with easy maintenance.


key features of the Step Moving Fire Grate

High Combustion Efficiency

  • Segmented Combustion Design: The grates are divided into independent combustion sections, each of which can be controlled separately to ensure complete fuel combustion, improving efficiency and reducing unburned waste.

  • Uniform Primary Air Distribution: The design allows for uniform distribution of primary air across all regions, creating a stable gasification zone and providing sufficient oxygen for combustion, further improving efficiency.


Strong Adaptability

  • Wide Fuel Compatibility: It can burn a variety of fuels, including waste wood, residual wood, pellets, and alternative fuels. It is also suitable for burning grains, corn, wood chips, industrial pellets, and MDF furnace materials.

  • Wide Moisture Range: The system can handle fuels with moisture content ranging from M 8 to 44, reducing the need for fuel drying and lowering preparation costs and complexity.


Stable and Reliable Operation

  • Hydraulic Drive: The grate’s motion is powered by a hydraulic drive system, automatically adjusting intervals based on capacity. This ensures smooth operation and low failure rates, providing long-term stability.

  • Water-Cooled Design: The entire combustion chamber is water-cooled and lined with refractory material, allowing the system to withstand high temperatures while meeting cooling requirements, protecting the structure and extending service life.


User-Friendly Operation

  • Flexible Capacity Adjustment: The modulating function allows for flexible adjustment of combustion capacity based on real-time demand, meeting heat load requirements under different operating conditions.

  • High Automation: Key operating parameters are controlled by an automated system, reducing manual errors and simplifying operations for improved convenience and safety.


Environmental Benefits

  • Low Emissions: Due to its high combustion efficiency, the system reduces harmful gas and particulate emissions, complying with environmental standards and minimizing environmental impact.

  • Low Noise: The system operates quietly, making it suitable for environments where noise levels need to be minimized, reducing noise pollution.


Low Maintenance Cost

  • Simple Structure: The grate is made of water-cooled beams and overlapping grate rods, which simplifies maintenance and repair. This reduces both the time and cost involved in upkeep.

  • High Corrosion Resistance: Built with high-quality materials, the system offers excellent corrosion resistance, protecting it from damage caused by corrosive substances in the fuel and lowering replacement and maintenance costs.


Step Moving Fire Grate Production Process

Design and Manufacturing

  • Water-Cooled Grate Design: The grates consist of water-cooled beams with overlapping rods to prevent fuel leakage.

  • Refractory Material Application: The combustion chamber is water-cooled and lined with refractory materials for temperature regulation and extended equipment life.

  • Hydraulic Drive System: The grate is powered by a hydraulic drive, which adjusts intervals based on capacity, ensuring smooth operation and minimal failure.


Combustion Optimization

  • Segmented Combustion Design: The grate is divided into independent sections, optimizing combustion at each stage to improve efficiency and reduce waste.

  • Uniform Primary Air Distribution: Air is evenly distributed across all areas of the grate, forming a stable gasification zone for better combustion.

  • Secondary Combustion Technology: The use of low NOx technology reduces nitrogen oxide emissions, meeting environmental standards through staged air supply and a secondary combustion chamber.


Automation and Control

  • PersonalTouch visio Control System: The intuitive system ensures optimal combustion and high efficiency. It can be controlled via smartphones, tablets, or a built-in touch panel.

  • Automatic Ash Removal System: The system automatically discharges ash, reducing manual labor and enhancing operational efficiency and maintenance.


Environmental and Energy Efficiency

  • Low Emission Design: High combustion efficiency ensures complete fuel burning, minimizing harmful gas and particulate emissions, and meeting environmental standards.

  • Noise Control: The system operates quietly, making it suitable for areas with strict noise requirements.


Strong Adaptability

  • Wide Fuel Compatibility: It can burn various fuels such as waste wood, residual wood, pellets, and alternative fuels, as well as grains, corn, and other special fuels.

  • Wide Moisture Range: The system accommodates fuels with moisture content from M 8 to 44, reducing the need for fuel drying and lowering preparation costs.


Step Moving Fire Grate Project Quality Control

  • Project Schedule: Ensures timely completion by monitoring milestones and progress throughout the project.


  • Technical Communication: Facilitates effective communication between all parties for clear understanding of requirements.


  • Pre-production Technical Clarification: Resolves any uncertainties before production to ensure design and material compliance.


  • ITP (Inspection and Test Plan): Defines the inspection procedures and test criteria for each production stage.


  • NDT Chart: Outlines non-destructive testing methods and results to verify product integrity.


  • Groove Inspection: Checks the grooves for precise cutting and proper alignment during fabrication.


  • Dimension Inspection: Verifies that all components meet specified dimensions for accurate assembly.


  • Raw Material Inspection: Ensures all raw materials meet quality standards before production starts.


  • WPS/PQR Preparation: Prepares Welding Procedure Specification (WPS) and Procedure Qualification Records (PQR) for quality control.


  • Fabrication Process: Monitors each step in the fabrication process to ensure compliance with engineering standards.


  • Shell Welds Inspection: Inspects the welds on the shell for strength, appearance, and accuracy.


  • Cutting Groove, Preheating and UT: Verifies groove cutting, preheating, and ultrasonic testing for optimal weld quality.


  • Inspection before/after Machining: Inspects parts before and after machining to ensure precise dimensions and surface quality.


  • Hardness Inspection Certified by TVU: Conducts hardness testing certified by an accredited authority to ensure material strength.


  • Inspection for Trunnion Welding: Checks the trunnion welds for defects and strength before further processing.


  • Lifting Lug Dimension Inspection: Verifies that lifting lugs are correctly sized and positioned for safe handling.


  • Welds Appearance Checking: Ensures that welds have the correct appearance and meet aesthetic and structural standards.


  • Third Party Examination: Involves independent third-party inspections to ensure unbiased quality control.


  • Final Inspection: Conducts a comprehensive check before the product leaves the production line.


  • Minutes for Final Inspection: Documents findings and decisions made during the final inspection for transparency.


  • Inspection Document: Maintains detailed records of all inspections conducted throughout the project.


  • Painting and Packing: Inspects the coating and packaging to ensure products are ready for shipment without damage.


  • Transportation: Monitors the transportation process to guarantee safe delivery of the final product.


  • Project Summary: Summarizes the entire quality control process, highlighting key milestones and outcomes.


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