CLINKER KILN For Sale

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Clinker Kiln Introduction

Clinker kiln, also known as cement rotary kiln, is the core equipment in cement production.

Clinker is a sintered ore or pellet made from high-temperature agglomeration of concentrate powder and rich ore powder, which is a key intermediate product of cement production, and its quality directly affects the strength, setting time and other properties of the final cement. Clinker can increase the output and reduce the coke ratio.

The clinker rotary kiln is characterized by high calcination quality, less fly ash, high purity, good working environment and low energy consumption.

Production capacity: 180-10000t/d
Tolerance: 0.5 mm
Application: Cement calcination

Factory directly supply gypsum rotary kiln rotary

How can we ensure that clinker can be utilized to a greater extent?

This is the time to use our clinker rotary kiln.

Clinker rotary kiln is a professional equipment designed according to the characteristics of clinker, it is a kind of large-scale rotary high-temperature calcining equipment, which mainly calcines raw materials such as limestone and clay under high temperature through physical and chemical reactions, that is, semi-finished cement products. The calcination process of clinker includes crushing pre-homogenization, raw material preparation, raw material homogenization, preheating decomposition and clinker firing.

Clinker Kiln Structure

The main part of clinker rotary kiln mainly consists of cylinder, front roller ring, back roller ring, gear and thrust bearing seat, cooler and so on. According to user requirements, clinker rotary kiln can also add gas generator, combustion chamber or auxiliary crane, belt conveyor, quantitative feeder, cyclone dust collector and induced draft fan.

Clinker Kiln Design Principle

In clinker rotary kilns, the Suspension preheating kiln and the Calcining kiln are collectively called new clinker rotary kilns.
Suspension preheating kiln is a kind of high-efficiency calcining equipment in cement production, which belongs to the core part of new dry-process cement technology. The main use of suspension preheater system (usually 4-6 cyclone preheater) will be dispersed raw material powder in the rising hot air flow suspension, gas-solid high-efficiency heat exchange, so that the raw material into the rotary kiln before the completion of the full preheating and part of the carbonate decomposition (decomposition rate of up to 85% -95%), a substantial reduction in energy consumption.
Suspension preheating kilns (such as SP kilns or NSP kilns with precalciner systems) have become the mainstream technology in the modern cement industry, combining high production, low consumption and environmental advantages.

Calcining kiln is a kind of industrial kiln used for high-temperature heat treatment of materials (e.g., ores, limestone, cement raw materials, refractory materials, etc.), which is heated to make the materials undergo physical or chemical changes (e.g., decomposition, oxidization, sintering, etc.) in order to obtain the desired product properties.
The core advantages of the calcining kiln are high temperature controllability and reaction efficiency. Different kiln types are selected according to material characteristics, production scale and energy requirements.

Raw material enters from the end of the kiln, and moves slowly to the kiln head with the rotation of the cylinder in the kiln, while the kiln head burner injects fuel to form a high temperature flame (about 1450℃), so that the raw material undergoes the process of preheating, decomposition, sintering and cooling, and finally forms cement clinker. In this process, calcium carbonate decomposes into calcium oxide and carbon dioxide, and calcium oxide reacts with silica and alumina in the clay in solid phase to produce minerals such as tricalcium silicate (C₃S), which is cooled sharply by the cooler to obtain granular clinker, and the exhaust gas recovers the residual heat through the preheater to improve thermal efficiency.

Clinker Kiln Technical Parameters

Product Standard(m）	Kiln Size					Motor Power(kw)	Gross Weight(t)	Remarks
	Diameter(m)	Length(m)	Inclination(%)	Yield(t/d)	Rotate Speed(r/min)
Φ2.5×40	2.5	40	3.5	180	0.44-2.44	55	149.61
Φ2.5×50	2.5	50	3	200	0.62-1.86	55	187.37
Φ2.5×54	2.5	54	3.5	280	0.48-1.45	55	196.29	Outside Decomposition Kiln
Φ2.7×42	2.7	42	3.5	320	0.10-1.52	55	198.5
Φ2.8×44	2.8	44	3.5	450	0.437-2.18	55	201.58	Outside Decomposition Kiln

Clinker Kiln Advantages

Space-saving: The cooler and kiln hood are of integrated vertical design, and the clinker rotary kiln is supported by a roller device, so the clinker rotary kiln has strong operational stability.

High operational flexibility: The metering plunger pump with high metering accuracy is equipped with an auxiliary drive to prevent the kiln body from bending and deformation. Automatic control reduces human error and stabilizes product quality (free calcium of clinker qualified rate >95%).

High operating efficiency: modularized preheater/decomposition furnace to improve production efficiency and shorten the decomposition time of calcium carbonate. When the main power supply is disconnected, the auxiliary drive can still work.

Adaptable to a variety of fuels: Wide range of raw materials and fuels can be used, including coal, natural gas, biomass fuel and even refuse-derived fuel (RDF). Contact sealing device at the end of the kiln to avoid unorganized emission of hot exhaust gases.

New design: uniform mixing of materials, high heat transfer efficiency, reduced energy consumption, more than 30% lower than the traditional vertical kiln.