Pelletizing Rotary Kiln Refractory Lining Integrated Solution

Name: China Pelletizing Rotary Kiln Refractory Lining Integrated Solution Manufacturers Suppliers Factory - Luming New Materials
Brand: Luming
SKU: 307063157

Tel/WhatsApp:0086-18905335290

Email:luming@lm-kiln.com

We provide one-stop refractory solutions for industrial kilns, from customized refractory design and material selection to the production of refractory bricks, castables, precast refractory blocks, insulation products, and refractory anchors. We also offer installation guidance and kiln dry-out support to help customers improve kiln efficiency, reduce maintenance costs, and maximize refractory service life.

The pelletizing Rotary kiln uses high temperatures (typically 1200–1350°C) to roast green balls made of iron ore powder (such as magnetite or hematite) and binders (such as bentonite). This process triggers physicochemical reactions (oxidation, crystallization, and consolidation), forming high-strength, uniform pellets. Pellets offer advantages such as high iron content, consistent particle size, and excellent metallurgical properties, making them a crucial feedstock for blast furnaces or direct reduction ironmaking. Rotary kilns are dynamic thermal processing equipment widely used in the building materials, metallurgy, non-ferrous metals, and chemical industries. Unlike most other industrial furnaces, the refractory lining inside a rotary kiln rotates continuously with the kiln shell under high-temperature operating conditions. During service, the refractory lining is exposed not only to thermal shock, hot gases, chemical attack, and abrasion from the processed material, but also to mechanical stresses caused by kiln rotation, vibration, and the compressive forces between adjacent bricks and the kiln shell. Therefore, both high-quality refractory materials and proper installation are essential to ensure reliable kiln performance.

Our company is Grate-Kiln-Cooler (GKC) System,The grate-kiln-cooler pelletizing process is widely recognized for its low investment cost, high production capacity, uniform firing, and stable pellet quality. Within this process, the pelletizing rotary kiln is the core piece of equipment that determines production efficiency and operating reliability.Unlike rotary kilns used in the cement and building materials industries, where a stable coating (kiln coating) forms in the burning zone to protect the refractory lining, pelletizing rotary kilns are designed to operate without kiln coating. As a result, high-temperature pellets remain in direct contact with the refractory lining throughout operation, causing continuous abrasion and accelerated wear. In addition, routine maintenance requires frequent kiln start-ups and shutdowns, exposing the refractory lining to repeated thermal shock cycles.For these reasons, refractory linings for pelletizing rotary kilns must provide outstanding abrasion resistance, excellent thermal shock resistance, and long-term structural stability to ensure safe, stable, and reliable kiln operation.Based on the actual operating conditions of pelletizing rotary kilns, together with extensive experience from recent pellet plant projects and long-term performance data, Shandong Luming has continuously optimized its refractory materials and lining design. The result is a refractory lining solution specifically engineered to meet the demanding requirements of modern pelletizing operations, delivering longer service life, improved operating stability, and reduced maintenance costs.

Our Product Portfolio--Rotary Kiln and Auxiliary Equipment:

Castable refractory,Precast block,Gunning mix (Plaster) for pelletizing and sintering Rotary kiln

Item		LM-GM70	LM-GM65	LM-M60	LM-PT1.7	LM-PT2.0	LM-PT2.3
AL₂O₃ % ≥		70	65	60	35	40	45
Bulk Density(g/m³)		2.70	2.60	2.50	1.7	2.0	2.3
Compressive strength(MPa)≥	110℃X24h	80	60	50	20	40	60
Compressive strength(MPa)≥	1100℃X3h	90	70	70	40	60	80
Modulus of Rupture(MPa)≥	110℃X24h	10	8	8	4	6	8
Modulus of Rupture(MPa)≥	1100℃X3h	14	12	10	6	8	10
Linear change rate,1100℃x3h, % ±		(1350℃x3h)±0.3	0.5	0.5	(1000℃x3h)±1.0	0.5	0.5
Continuous Service Temperature ℃		1500	1450	1400	900-1000	1200	1300
Service Environment		High-temperature wear-resistant zones of pellet rotary kilns and sintering machine ignition furnaces	Pellet annular cooler, grate machine, sintering windbox	Pellet grate preheating zone, annular cooler cooling stage II & III	Pellet annular cooler low-temperature hood , Sintering low-temperature duct. construction method: spraying or trowelling	Pelletizing & Sintering High-Temperature Ducts. construction method: spraying or trowelling	Pelletizing and sintering flue gas hoods, and special areas that are difficult to construct. construction method: spraying or trowelling

Usage Results of Zinc Recovery Kiln Refractory

Compared to Traditional Small Brick Masonry Process:

1.Cylinder temperature reduced by more than 30%

2.Fuel cost savings exceeding 10%

3.Completely eliminates brick dropping issues

4.Total refractory weight of the kiln body reduced by 10%, resulting in electricity savings of 10%

5.After 6 months of operation, the refractory cost is effectively equivalent to free usage

Alternative Solution ---All-Precast Refractory Brick Solution for Winter Construction in Extremely Cold Areas:

1.No casting zones required; castable refractory is unnecessary

2.Formed precast bricks are assembled by splicing and welded installation

3.Excellent thermal insulation performance

4.Secure and reliable fixation with no risk of brick loosening or dropping

Front-to-back welded assembly enables rapid splicing and high construction efficiency

Our Main Applications:

1.Metallurgical & Nonferrous Industry:Standard Pelletizing Rotary Kiln,Ferronickel Rotary Kiln,Ferromanganese rotary kiln,Vanadium-Titanium Rotary Kiln, Ferrochrome Rotary Kiln,Alumina Rotary Kiln,Magnesium Metal Rotary Kiln,Zinc Recovery Rotary Kiln,Iron Ore Roasting-Reduction Rotary Kiln,etc.

2.Building industry:Lime Rotary Kiln,Dolomite Calcining Kiln

3.New Energy Industry: Lepidolite Rotary Kiln,Spodumene Conversion Kiln

4.Environmental protection industry: Hazardous Waste Rotary Kiln,Hazardous Waste Rotary Kiln,Sodium Pyrophosphate Thermal Oxidizer,Sodium Pyrophosphate Thermal Oxidizer

5.Coke Oven Door Brick,Coke Dry Quenching Castable Refractory

Our Quality Management:

Our company strictly adheres to national and industry standards for refractory materials in design, production, and inspection. We also comply with international standards specified by clients to meet customized requirements.Based on the principles of safety, reliability, and cost-effectiveness, we have established a comprehensive quality management system and inspection and testing system.Our internal quality control standards encompass all critical aspects: Raw material qualification,Production process monitoring, Key control point management, Equipment maintenance & inspection,Full-process quality testing & evaluation, Closed-loop quality feedback & improvement.We implement strict raw material quality control, conducting batch-by-batch inspection with full documentation to ensure consistent material compliance.During the production process, strict quality control is enforced, with every process detail rigorously monitored and inspected. A comprehensive quality management and accountability system is implemented to ensure the overall product quality is flawless.Deploy qualified and experienced project managers and professional construction teams to carry out meticulous construction, ensuring construction quality and progress, and guaranteeing timely completion with high quality and quantity.

Advanced Physical and Chemical Experimental Testing Equipment and Standardized Physico-Chemical Laboratory

CORPORATE ENVIRONMENT AND FACILITIES

Fully Automated Castable Refractory Production Line in Workshop 1

Precast Production Site in Workshop 1

Special Refractory Production and Firing Workshop Site

7 × 52m³ Shuttle Kilns in Special Refractory Workshop

75m Firing Tunnel Kiln in Special Refractory Workshop

Fully Automatic Glaze Spraying Equipment

Our service:

1. We strictly adhere to all agreements signed with our clients and conscientiously accept the obligations therein.

2. We commit to delivering all supplied materials to the client's designated location within the specified timeframe. We also guarantee that all product physicochemical indicators will meet the buyer's requirements. If any material is found to be non-conforming upon inspection, we will unconditionally replace or refund it and bear all associated costs.

3.We will strictly comply with the technical requirements for all supplied products. Upon delivery, we will provide a genuine and credible "Product Quality Certificate," "Test Report," and "Product Usage Instructions." We are also willing to accept random sampling inspections of the products by the buyer.

4.During construction, our company will dispatch professional technical personnel to the site to provide on-site tracking and support. They will offer technical guidance on the construction, furnace baking, and trial operation of the materials, promptly addressing and resolving any related issues. They will also assist the construction team with product protection and other relevant tasks.

5.For kilns constructed by our company, we are willing to provide detailed furnace drying curves.

6.Should any quality issues arise during use, we commit to being on-site within 24 hours for domestic clients in the province and within 48 hours for those outside the province upon receiving notification. For international clients, a written response will be provided within 24 hours to assist in the investigation and analysis of the issues.

7.We commit to taking responsibility for any losses caused by defects in the goods provided during the warranty period.

8.Should a product fail due to improper use by the client during the warranty period, we will actively assist with replacement, charging only for the cost of the materials.

9.Even after the warranty period expires, our company will remain actively involved in assisting with the resolution of any issues that may arise.

10.Technical personnel will conduct regular quality feedback sessions to solicit suggestions for improvement and enhance service quality.

Our Packing and shipping

All delivered goods are packaged in strict compliance with the buyer's requirements as well as relevant national and industry standards.Shaped products such as refractory bricks and precast blocks are typically packaged on wooden pallets, wrapped with stretch film for sealing, and secured with plastic-steel strapping.Unshaped refractory materials are packaged in 25-50kg plastic bags, with additional outer protection using bulk bags.Our company provides customized packaging solutions including containers, wooden cases, metal boxes, and moisture-proof marine packaging, fully compliant with both local regulations and corporate requirements in your market.