As one of the most critical components in the clinker firing system, a grate cooler plays a decisive role in cement production efficiency, energy recovery, and overall kiln stability. Designed to rapidly cool high-temperature clinker discharged from the rotary kiln, the grate cooler is not only a cooling device but also an essential part of the thermal balance of the entire kiln system.
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ec@shyychina.comIn a modern grate cooler in cement plant applications, efficient clinker cooling directly impacts clinker quality, downstream grinding performance, and fuel consumption. From the perspective of an experienced grate cooler manufacturer, a well-designed cooler must combine high cooling efficiency, stable clinker conveying, low air leakage, and reliable long-term operation under harsh conditions.
A grate cooler in cement plant operations is a core part of the clinker cooler system and directly interfaces with the rotary kiln and downstream conveying equipment. Our grate coolers are suitable for a wide range of cement production lines, from medium-scale plants to large-capacity modern facilities.
The grate cooler integrates seamlessly with complete rotary kiln systems and is suitable for both new cement production lines and retrofit projects.
In cement production, clinker exits the rotary kiln at temperatures of up to 1,300–1,400°C and enters the inlet section of the grate cooler. The clinker bed is conveyed across the cooler by the movement of the grate plates. In a reciprocating grate cooler, the grate bed advances in a controlled, step-by-step motion, ensuring uniform material distribution and stable residence time.
The grate cooler supplies cooling air from below the grate bed and drives it upward through the clinker layer, where the cold air exchanges heat intensively with the hot clinker. As the clinker temperature decreases, the air absorbs heat and becomes high-temperature hot air, which the system reuses as secondary and tertiary air for the rotary kiln and decomposition furnace, forming an efficient cement clinker cooling and heat circulation system.
After cooling, the grate cooler allows smaller clinker particles to fall through the grate openings onto the downstream conveyor, while the clinker crusher handles larger clinker lumps for further crushing, cooling, and discharge. The system collects fine clinker and dust leaking through the grate joints and conveys them via a sealed discharge system, ensuring minimal air leakage and stable system pressure.
| Model | Effective area (m2) | Capacity（t/d） | Note |
| LS2413 | 28 | 1000-1250 | Mechanical transmission |
| LS2717 | 39.6 | 1500-1700 | Mechanical transmission |
| LS2718 | 43.8 | 1700-1900 | Mechanical transmission |
| LS3322 | 62 | 2500-2800 | Hydraulic transmission |
| LS3323 | 65 | 2600-3000 | Hydraulic transmission |
| LS3324 | 73.8 | 2800-3300 | Hydraulic transmission |
| LS3326 | 80.5 | 3200-3500 | Hydraulic transmission |
| LS3625 | 85 | 3400-3800 | Hydraulic transmission |
| LS3925 | 90 | 3500-4000 | Hydraulic transmission |
| LS3928 | 100.3 | 4000-4500 | Hydraulic transmission |
| LS3933 | 121 | 5000-5500 | Hydraulic transmission |
| LS3936 | 134.2 | 5500-6000 | Hydraulic transmission |
| LS3938 | 140 | 5800-6300 | Hydraulic transmission |
| LS4240 | 151 | 6000-6800 | Hydraulic transmission |
| LS4842 | 187.5 | 7500-8500 | Hydraulic transmission |
| LS5142 | 200 | 8000-9600 | Hydraulic transmission |
| LS5449 | 250 | 10000-12000 | Hydraulic transmission |
Grate coolers offer higher cooling efficiency and better heat recovery than rotary or planetary coolers.
Grate coolers can be designed for capacities from 1,000 t/d to over 10,000 t/d.
Yes. It is widely used to upgrade outdated cooling systems.
As an experienced grate cooler manufacturer, we provide customized design, engineering support, and reliable equipment for cement plants worldwide.
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