Factory Direct Ql-10 Economical Stepped Reciprocating Grate

• Customization: Available
• Certification: CE, ISO
• Customized: Customized
• Model NO.: QL - 4 QL - 6 QL - 10
• 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 Steel,Carbon Stee
• Transport Package: Wooden Box, Iron Box, Customized
• Specification: 360mm 365mm 400mm 450mm
• Trademark: JG
• Origin: China
• HS Code: 8402900000
• Production Capacity: 50000tons/Year

Product Description

Product Introduction
           Reciprocating Grate is a common mechanized combustion equipment in industrial boilers, mainly used for the combustion of solid fuels such as coal and biomass. Its working principle is to push the fuel forward through the reciprocating motion of the grate plate, achieving continuous combustion and slag discharge. The reciprocating grate has a simple structure and reliable operation, and is widely used in small and medium-sized layered combustion boilers (such as biomass boilers, coal-fired boilers, etc.).
A reciprocating grate is an efficient and adaptable combustion equipment, particularly suitable for the combustion of biomass fuels and low-quality coal. It has a simple structure and sufficient combustion, but attention should be paid to the wear and power consumption of grate plates. Reasonable selection, standardized operation, and regular maintenance can significantly improve its service life and combustion efficiency.
Product parameters

product name	Reciprocating 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:
Q1: What could be the possible reason for the blockage or poor movement of the reciprocating grate during operation?
A1: Deformation or fracture of grate plates: High temperature or mechanical stress can cause damage to the grate plates, resulting in jamming of the moving mechanism.
Ash accumulation or coking: Poor combustion leads to blockage of grate gaps.
Drive mechanism failure: motor, reducer or connecting rod mechanism damaged.
Fuel particles are too large: large pieces of coal or foreign objects are stuck between the grate.
Solution: Stop the machine, inspect and replace the damaged grate plates, clean the coking, check the drive device, and control the fuel particle size (recommended 20-50mm).

Q2: How to solve the serious coal leakage in reciprocating grate?
A2: Wear or excessive clearance of grate plates: After long-term use, the grate plates wear out, leading to coal leakage.
Fine fuel or low moisture content: Powdered coal is prone to leakage from gaps.
Improper installation: The grate plates are not tightly fitted, resulting in significant gaps.
Solution: Replace worn grate plates, adjust installation clearance (standard 1-3mm), control fuel particle size (avoid excessive powder).

Q3: What could be the possible reason for the rapid burning of grate plates?
A3: Material not resistant to high temperatures: Ordinary cast iron grate plates are prone to oxidation and deformation at high temperatures.
Local overheating: Uneven air distribution leads to high temperatures in some areas.
Shutdown cooling too fast: Cold air rapidly enters, exacerbating the oxidation of grate plates.
Solution: Use heat-resistant alloy grate plates (such as high chromium cast iron), optimize air distribution, and slowly cool down when shutting down the furnace.

Q4: How to troubleshoot the vibration or noise during the operation of the reciprocating grate?
A4: Loose drive mechanism: worn or broken connecting rods, bearings, or fixing bolts.
Shedding or collision of grate plates: Failure of fasteners causes grate plates to collide with each other.
Unstable foundation: Loose boiler bracket or grate base.
Solution: Tighten bolts, replace worn bearings, check the fixing of grate plates, and reinforce the foundation.

Q5: What could be the problem with uneven movement speed of the grate (sometimes fast and sometimes slow)?
A5: Motor or gearbox malfunction: unstable voltage, motor damage, or gearbox gear wear.
Uneven thickness of fuel layer: Uneven feeding leads to changes in resistance.
Excessive resistance of grate plates: coking or ash accumulation increases movement resistance.
Solution: Check the motor and reducer, adjust the feeding uniformity, and clean the ash accumulation in the grate.

Q6: How to optimize the decrease in combustion efficiency of reciprocating grate?
A6: Unreasonable air distribution: Insufficient or unevenly distributed air volume leads to incomplete combustion.
Excessive moisture content in fuel: affects ignition and combustion speed.
The grate speed is too fast: the fuel is pushed out before it is fully burned.
Solution: Adjust segmented air supply, control fuel moisture content (biomass ≤ 30%, coal ≤ 15%), and reduce grate movement speed.
Contact our professional engineering team promptly when encountering any questions!