Manufacturer′s Spot Boiler Grates Grates Plate, Grates Bar Boiler Accessories High-Temperature Resistant Grates Grates Grate

• Customization: Available
• Certification: CE, ISO
• Customized: Customized
• Model NO.: HT150 HT200 RTCr16 RQTSi4Mo
• Surface Treatment: Natural
• Fuel: Oil, Coal, Gas
• Range of Applications: Power station, Life, Industrial
• Type: Sprocket
• Standard: Ht150
• Payment Method: Tt LC
• Price Terms: EXW Fob CFR CIF DDP
• Material: Cast Iron,Cast Steel,Mild Steelcarbon Steel
• Transport Package: Wooden Box, Iron Box, Customized
• Specification: HT200 RQTSi4Mo GZ-300× 500 ZG40Cr25Ni20
• Trademark: JG
• Origin: China
• HS Code: 8402900000
• Production Capacity: 50000tons/Year

Product Description

Product Introduction
          Fixed grate is a non movable grate structure in boiler combustion systems, mainly used in layered combustion boilers (such as hand fired furnaces, chain furnaces, etc.). Its core function is to:
-Carrying fuel (coal, biomass, etc.) and providing air channels required for combustion.
-Stable combustion ensures that the fuel is fully burned on the grate, reducing coal leakage losses.
-Adapt to low volatile fuels (such as anthracite, coke, etc.)   
Product parameters

product name	Fixed grate
material	Heat-resistant Steel,Cast Iron,Cast Steel,Mild steel,Carbon Steel,Alloy Steel, etc.
Material standards	ASME,SAE,NF EN,DIN EN,ISO,BS EN,etc
port	Qingdao Port, Tianjin Port, Guangdong Port.
delivery time	7~15 days
country of origin	Shandong, China
Specification drawing software	PDF, Auto CAD,Solidworks,JPG, ProE,etc.
Main production equipment	Wax injection, CNc-machine-center, Lathe, Miling machine,Driling machine,Boring Lathe,Grinding Machine, Heattreatment Furnace.
Heat treatment machine	Mesh-Belt-Furnace,Carburizing Quench Furnace,Chamer Furnace,etc.
Surface Treatment	Cold/Hot zn Plating,Blackening Treatment,Ni Plating,cr plating,Spraying Undercoat,Anti. Rust Paint,Surface Paint,Plastic Paint,Coated Anti-Rust Water,Anti-oil,etc.
Surface  Heat Treatment	Medium Frequence Quenching,High Frequence Quenching and Carburizing and Quenching,Oil Quenching,Waterquenching,Normalizing,Temper,Annealing,etc.
Dimensional Inspection	Calipers,Height Laugue,Micrometer Calipers,Inside Caliper Gauge,Angle and R Gauge,four coordinates measuringinstrument.
productivity	50000 tons /year
package	Wooden boxes, iron boxes, and others

Company Profile
               Shandong Jiaguang International is a high-tech enterprise focusing on the research and development, production, sales and service of boiler parts. The company has 30 years of manufacturing experience, as well as modern production base and senior technical team, to ensure to meet the needs of friends from all walks of life for products, and through the ISO9001 international quality system certification, CE certification, SGS origin certification.
The company's main products cover: Active grate, passive grate, grate pin, beam grate, scale grate, reciprocating grate, fixed grate, grate, chain grate, chain rod, scraper accessories, buried scraper chain, boiler hood, boiler tube, steel pipe, square tube, gear and other heat resistant, wear-resistant, corrosion resistant boiler accessories, widely used in electricity, heat, heating, paper mill, printing and dyeing factory, sugar factory, animal farming, Feed mill, chemical industry, etc. Products are exported to Vietnam, Singapore, Thailand, India, India, Pakistan, Tajikistan, Australia, New Zealand, Mexico, Russia, Malaysia, Philippines, South Africa and other more than 30 countries and regions.
It is committed to providing high-quality accessories and solutions for global industrial boilers, power station boilers, civil boilers and other fields, and has become a global benchmark enterprise in the field of boiler accessories.
Product Certification
Product packaging 
1. Principles of Packaging Design
Protection Shock proof and buffering: precision accessories (such as instruments and valves) need to be filled with foam, bubble film, pearl cotton, etc. to avoid damage caused by transportation shock.
Moisture and rust prevention: Metal components (such as pipelines and flanges) need to be coated with rust prevention oil and packaged with moisture-proof film or vacuum. Desiccant should be added during sea transportation.
Anti pressure and anti drop: Heavy accessories (such as burners and drums) are reinforced with wooden boxes or steel frames, indicating the load-bearing direction and stacking layer limits.

2. Standardization and identification
Comply with international transportation standards (such as ISO, ISTA), indicate weight, size, lifting point, "fragile", "moisture-proof", "upward" and other markings.
Dangerous accessories (such as fuel injectors) must be labeled with UN certification and comply with the International Maritime Dangerous Goods Code (IMDG).

3. Container division strategy
Small items (bolts, washers) should be packaged in a uniform size box to avoid loose parts; Large items (heat exchangers) are individually customized in wooden boxes with supporting frames inside.

Product transportation
Transportation mode selection
1. Shipping by sea
Suitable for bulk accessories such as steel plates and large pipelines, pay attention to container size (20GP/40HQ) and load balance.Sea freight requires anti salt spray treatment, with moisture-proof agents placed inside the container and sealed.

2. Land transportation
Heavy accessories (over 3 tons) require flatbed trucks or low chassis vehicles, and routes should be planned in advance to avoid height/weight restrictions.Cross border transportation inspection of various countries' requirements for wooden packaging (such as ISPM15 fumigation certificate).

3. Air freight
Urgent small items (electronic controllers) should be prioritized for air transportation, and the weight of each item should be controlled (usually<100kg) to reduce packaging weight and save costs.

FAQ:
Frequently Asked Questions about Fixed Boiler Grates (Q&A)

Q1: Fixed grate is prone to blockage, how to clean it?
A1:  
-Reason: Ash accumulation, high impurities in fuel, and small ventilation gap.
-Solution:
-Manual slag cleaning: After shutting down the furnace, use an iron hook to clean the gaps in the grate.
-Adjust fuel: Use uniformly sized lump coal to reduce coal fragmentation.
-Optimize ventilation: Check whether the air distribution in the air chamber is uniform to avoid local blockage.

Q2: What should I do if the fixed grate burns, deforms or cracks?
A2:  
-Reason: High temperature oxidation, material is not heat-resistant, and the combustion temperature is too high.
-Solution:
-Replace heat-resistant materials: Choose RQTSi4Mo or ZG40Cr25Ni20 heat-resistant cast iron/steel.
-Control furnace temperature: avoid long-term overload operation.
-Regular inspection: Observe the grate for cracks or deformation when shutting down the furnace.

Q3: How to solve the serious coal leakage in the fixed grate?
A3:  
-Reason: Excessive grate clearance, small fuel particles, and grate wear.
-Solution:
-Adjust grate plates: Replace grate plates with smaller gaps (such as narrow gaps in strip grate plates).
-Use grate gaskets: Install heat-resistant gaskets under the grate to reduce coal leakage.
-Optimize fuel: mix lump coal and crushed coal to improve combustion efficiency.

Q4: What should be done if the ventilation of the fixed grate is poor and the combustion is insufficient?
A4:  
-Reason: Thick ash layer, blocked air chamber, uneven air distribution.
-Solution:
-Strengthen dust cleaning: Regularly clean the accumulated dust in the air chamber below the grate.
-Check the air door: Adjust the air volume once to ensure even air supply.
-Manual slag turning: During the combustion process, adjust the fuel layer appropriately to improve breathability.

Q5: How to extend the short service life of fixed grate?
A5:  
-Reason: Poor material quality, high temperature oxidation, mechanical wear.
-Solution:
-Choose heat-resistant materials: RQTSi4Mo or high chromium cast iron is preferred.
-Avoid rapid cooling and heating: cool naturally after shutdown, and do not splash water to cool down.
-Regular maintenance: Check if the fixing bolts of the grate are loose to prevent deformation.
Contact our professional engineering team promptly when encountering any questions!