In Pfeiffer lime hydrators, quicklime lumps are converted into lime hydrate by adding water. In downstream Pfeiffer separators, high-purity lime hydrate is separated from the grits. These are ground to target fineness in ball mills which operate in closed circuit with separators, thus producing building lime.

family-run business with its head ofice in Kaiserslautern, Germany, Gebr. Pfeiffer has pioneered the development of modern grinding, sep- a rating, drying, slaking, and …

Tradition since 1864. As a family-run business with its head office in Kaiserslautern, Germany, Gebr. Pfeiffer has pioneered the development of modern grinding, separating, drying, slaking, and calcining technologies for more than 150 years. Today, some 500 qualified employees are all united in the endeavor to carry on the passion of our ...

As a provider of overall solutions, Gebr. Pfeiffer offers innovative, market-oriented system solutions with quality products for material preparation – grinding, separating, drying, hydrating, calcining.

The so produced cement clinker is ground together with gypsum and/or anhydrite, thus forming the final product cement. Depending on the availability of the raw materials and market-specific requirements, further extenders are added to the common grinding process such as granulated blast-furnace slag.

The inventors of mill drives with more than 10,000 kW, modular ready2grind systems and gypsum calcination in vertical roller mills. The worldwide sought-after specialist for innovative solutions, with its own development department and strong German engineering.

The dryer will be used to dry flue gas desulphurisation (FGD) gypsum from a captive coal-power plant for use in cement plants. In the planned dryer plant the …

Coarse natural gypsum and mixtures of natural gypsum and FGD gypsum are ground, dried, partially calcined, and classified in the MPS vertical roller mill. Product fineness …

Coal, lignite or petcoke are ground in the Pfeiffer vertical mill by using hot gases from a hot gas generator. The grinding plant can be inerted. The raw coal is dried while being ground in the mill even if feed moisture exceeds 25%. The feed size that can be handled is up to 100 mm, making two-step pre-crushing unnecessary.

Customers around the globe rely upon Pfeiffer's innovative system solutions ensuring efficient preparation of cement, granulated blast-furnace slag, cement raw material, coal, lime, gypsum, clay, and many other materials.

It is a confirmation of the path taken by Gebr. Pfeiffer to contribute to energy reduction and more sustainable cement production with the revised process concept of the MVR vertical roller mill system.

Pfeiffer has two systems for producing beta-plaster: direct calcining with the MPS mill and indirect calcining in the GK gypsum kettle. In the MPS mill, the …

Gypsum processing with Pfeiffer, i.e. grinding, drying, separating, and calcining with the proven MPS gypsum mills and separators for the production of any type of gypsum plaster Gypsum mill for all requirements | Gebr.

The MPS mill allows mixes of natural gypsum, FGD gypsum and pre-crushed wallboard be processed with ease. To completely transform the dihydrate into hemihydrate, the mill is …

Gebr. Pfeifer SE has been supplying such GC mills since 1999, among others, the world's larg-est two gypsum calcining mills. These mills of the type MPS 2800 GC with an outer grinding track diameter of 2800 mm produce more …

Customers all over the world rely on Pfeiffer's innovative system solu-tions ensuring eficient production of cement, lime, gypsum, coal, raw material, clay and many other materials. Our clients profit from our global network of subsidiaries in India, Egypt, China, Brazil, Malaysia, Russia and the United States along with an extensive network of …

For the preparation of cement raw material, cement, and granulated blast-furnace slag with small to medium output rates, the MVR mill with conventional drive is the right choice. This mill type is by the way the core piece of our modular ready2grind system. High plant availability and optimized maintenance concepts are the features that make ...

The Pfeiffer lime hydrator produces the perfect hydrate quality as required for high-quality building lime, plaster, and chemical lime. With our experience gained over decades and our extensive know-how, we are in a position to provide economical solutions to your lime slaking applications. In fact we conceive and build dry slaking plants for ...

The dehydration of gypsum to hemihydrate normally takes place during the grinding process in the cement mill. Depending on the mill temperature, the gypsum becomes partially or completely dehydrated to hemihydrate or anhydrite respectively.

With our wide range of experience in drying technology and constant research and development, we can offer the optimum solution to any drying problem. With its proven design and reliable operation, the Pfeiffer TRT Triplex dryer scores with low energy costs and constantly high output rates. Maximum capacity at minimum consumption – utmost ...

The Pfeiffer separators have undergone optimization for years by means of CFD simulation on the basis of small-scale investigations and last but not least by making use of our long-time experience. The result is …

Customers around the globe rely upon Pfeiffer's innovative system solutions ensuring efficient preparation of cement, granulated blast-furnace slag, cement raw material, coal, lime, gypsum, clay, and many other materials. Our clients profit from our global network of subsidiaries in India, China, Brazil, the United States, Egypt, and Malaysia ...

Gebr. Pfeiffer

The cement raw material mixtures are ground, dried, and classified in the Pfeiffer vertical roller mill. For drying the material, hot gases are directed into the mill. Product fineness can be adjusted within a wide range …

From raw material grinding to hydrating: we have the optimum solution when it comes to efficient material preparation with our Pfeiffer products. Contact us.

Customers all over the world rely upon Pfeiffer's innovative system solutions ensuring eficient production of cement, lime, gypsum, coal, raw material, clay and many other materials.

The dehydration products of gypsum under different temperature and water vapor pressure were investigated by thermodynamic theory. Additionally, the rehydration mechanism of …

The MVR mill is the optimum solution for large throughput rates due to its very high availability with the active redundancy of rollers and drive system (MultiDrive®), low wear rates, and best maintenance friendliness.

Our separators – resulting from continuous development. They offer a wide variety of applications: for crushed limestone sand, limestone filler, white fine lime or lime hydrate. The features of the separators including optimum material distribution are convincing. Separator speed is variable allowing fine setting at the push of a button, even ...

Separate gypsum calcining for cement grinding leads to a significant overall reduction of thermal energy consumption, a reduction of the volume flow for the plant fan compared to the 'single process' and the possibility of optimising the cement properties with an adjustable degree of gypsum dehydration and therefore setting time.