Chemical industry - machinery and equipment - Import export

Due to the individual speed control, the Roots pumps of the innovative HiLobe® series offer a nominal pumping speed range of 520 - 2,100 m³/h and can be perfectly adjusted to customer-specific requirements. In general, Roots pumps need a backing pump adapted to the gas flow and which is suitable for the application in order to operate.

The Reactotherm is a heavy duty processor with an intensive mixing and kneading effect and self-cleaning ability. It is used for thermal processing of a wide variety of pasty, viscous, and fouling products. It can be operated continuously or batch-wise. The Reactotherm consists of a cylindrical, horizontal shell and a rotor with segmented discs and mixing bars. Stationary mixing hooks are attached to the inside of the shell. The close clearance between the mixing hooks, the segmented discs and the rotor result in a high mixing and kneading effect and the self-cleaning properties of the rotor. The inside of the shell is cleaned by the mixing bars. Fouling of heat exchange surfaces and the formation of agglomerates are avoided. The shell, the rotor shaft and the discs can be heated or cooled. The product transport is accomplished by the slightly pitched mixing bars.

The Large Volume Processor program consists of horizontally arranged, heated reactors with twin (co- or counterrotating) shaft which provide intensive mixing and kneading. The highly versatile large volume processors Reasil and Reacom are characterised by the following advantages: Very large volumes The highest viscosity melts (up to 15,000 Pas) and solids can be processed efficiently Low shear processing Long residence times are achieved economically Mixing, devolatilization, reaction and phase change (from melt to solid) can take place in the same machine. A successful devolatilization or reaction system consists of the right processor design integrated with properly engineered subsystems. SMS can provide a complete system, including installation and start-up services, or full engineering and design documentation to allow you to add the necessary subsystems for our high volume processors.

Filmtruder and Viscon processors are specialized in the concentration, purification and devolatilization of products with viscosities up to 10,000 Pa (s) and are characterized by the following properties: Agitated thin film processing Unequaled surface renewal, resulting in the lowest residual volatile content Typically no stripping agents required Large free vapour volume compared to product hold-up, allowing very high volatile removal in one stage A successful thin film processing system consists of the right processor design integrated with properly engineered subsystems. SMS can provide a complete system, including installation and start-up services, or full engineering and design documentation to allow you to add the necessary subsystems for our thin film processor.

For the thermal separation of a mixture a thin film is produced at the heated wall of a cylindrical or conical evaporator. A distribution ring on the rotor distributes the liquid evenly across the periphery. Then, the blades fitted at the rotor spread the liquid as a thin film of min. 0.5 mm over the heat transfer surface. The model concept for the flow in the thin film evaporator assumes that prior to each rotor blade a bow wave is formed. In the gap between the rotor blade and the heating surface, fluid is supplied from the bow wave of a highly turbulent area with intense heat and mass transport. This results in a good heat transfer performance even with viscous products. In addition, the formation of deposits is avoided and the intensive mixing also protects temperature-sensitive products from overheating.

Homogenizing large tank volumes, mixing-in additives during the production of lubrication oil and suspending solids in a liquid phase are typical applications for the pneumatic pulse-mixing technology of PULSAIR. The process, patented worldwide, is based on an injection of an adjustable pressure pulse underneath an accumulator plate, installed on the bottom of the mixing tank. The injected pressurized air forms a big air bubble, soaring within the tank and displacing the surrounding liquid. Meanwhile negative pressure is generated underneath the bubble, sucking the surrounding material. This produces in the tank a vertical flow directed upwards, adjustable according to the requirements by varying the pulse length and the pulse duration. Contrary to mechanical agitators the height of the tank is very marginal. No moving parts or shaft bearings are in the tank.

OUR IN-HOUSE TEST PLANT AND LAB In order to ensure the high quality and long service life of our agitators, we have set up an in-house plant for testing our agitators. At the end of the manufacturing process, all of our agitators undergo a specific test procedure with a final test run. Here, we can test agitators with a shaft length of up to twelve meters. When designing our agitators, we use fluid mechanics simulations in our in-house laboratory. All Geppert mixing systems are delivered with O&M Manual and worldwide technical service.

The GRW series is suited for a wide range of applications thanks to shaft lengths of up to 3,000 mm and drive ratings of up to 5.5 kW. It has a standard output speed of between 10 and 200 rpm. Low installation height thanks to horizontal position of the drive. The agitator shaft of the GRW series geared agitator is directly mounted in the hollow shaft of the worm geared drive. Additional flanged or clamp couplings can be implemented upon request. The agitator shafts are balanced for concentric run after assembly of the mixer. According to the specific mixing task, the GRW can be supplied with matching mixing elements and various seals. Upon request, we supply the GRW series with frequency controlled drives.

The LRD series top-entry sealed agitator can be used for mixing in closed containers with a mechanical seal. It is designed with a coupling housing. The agitator shaft is borne in the bearing housing and the mechanical seal (single- or double-acting). The seal can be exchanged without dismantling the mixer from the tank (also in case of a side entry). Drives with shaft journals for LRD series: Three-phase motor Helical geared drive unit Parallel shaft geared drive unit Variable speed geared drive unit Helical bevel geared drive unit According to the tank size, the LRD series agitator is available in four different frame sizes. Shaft diameters of 30 mm to 90 mm and shaft lengths of up to 10,500 mm are feasible. Explosion protection to ATEX 2014/34/EU for explosive zones 0 to 2 for gases and for explosive zones 20-22 for dusts (device group II, categories 1-3). Pharmaceutical version with FDA and GMP feasible.

The GLP is a pneumatic top-entry series agitator that is used for homogenizing, dispersing, emulsifying and suspending in vessels and for viscosities up to 500 mPas for instance in wastewater treatment, chemical and cosmetics as well as in food industries. The agitator speed adapts to the viscosity of the media being mixed. Compact and easy-to-maintain construction as well as low weight. Power transmission via elastic coupling in the bearing housing. The agitator shaft has a double bearing in an aluminum housing separated from the drive. Speed is sensitively and continuously adjustable, smooth start, insensitive to vapor, dust and smoke. Compressed air keeps all moving parts clean. Insensitive to heat, suitable for high ambient temperatures. Compressed air, expanding in the air engine cools the agitator drive. Includes filters, pressure reducers with pressure gauge that indicates the secondary pressure. Available with a vessel clamp to fix the GLP on a drum.

Side-entry agitator for mixing below liquid surface. The PDR is a simple side-entry-agitator for mixing below the liquid surface. The PDR is recommended for applications where low viscous liquids are mixed turbulently in high tanks and where a top-entry mixer would be too heavy due to its shaft length and –diameter. The sealing between the agitator and the vessel is done by means of a single-acting, internal mechanical seal which is lubricated by the mixing product or an additional fluid The agitator shaft is connected to the drive directly with a flange coupling inside the seal housing. By default, this agitator series is supplied with marine type propellers. Other mixing elements according to the mixing task upon request. Solutions correspond to those of the SPR, additionally mechanical seal in sealing housing. Other solutions for this series upon request.

Mixing technology is particularly wide-ranging in the food and drinks industry. From simple suspension and homogenization tasks in storage or transport containers, right through to complex reduction tasks, during which mixtures can be exposed to only the lowest of shear forces – you will find it all in the food and beverages industry. High food sensitivity and the multitude of fields of application for agitators require close process coordination with the customer, in order to design, construct, and finish the agitators in the optimal manner with the widest variety of mixing elements. In addition to its popular standard mixers, Geppert also has special stirring elements within its portfolio, capable of being extremely gentle on the product while remaining highly efficient. All agitators have the relevant food approvals and can also be supplied with clean room drives and special sealing systems.

In the treatment of drinking water, whether done conventionally or via seawater desalination, agitators are used for rapid mix, precipitation and flocculation processes. Precipitation and flocculation processes require low shear, slow-running agitators. For pH adjustments and rapid mixing faster running agitators that can blend reactor content in a flash are required. Wastewater treatment also requires a multitude of application options for agitators. In anaerobic and anoxic tanks for nitrogen removal, slow-running agitators are used to suspend and homogenize activated sludge flocs. In aeration tanks, mixer/aerators can be used for efficient oxygenation and mixing. Where waste water is purified, sludge is generated. This sludge is generally conditioned using polymers, dewatered, and then digested in anaerobic sludge digesters to generate biogas. Special agitators are required for both polymer introduction and for digested sludge mixing.

Geppert Ruhrtechnik GmbH has been a certified manufacturer of explosion-proof agitator drives since 2003. This made us one of the first companies to develop and produce ATEX-compliant agitators. Our agitators are certified to ATEX Directive 2014/34/EU (formerly Directive 94/9/EC) in gas or dust explosion-proof designs. In addition, the majority of agitator styles have type test certificates for explosive zone 0, and can be used in applications in which an explosive atmosphere, arising from a mixture of air with flammable substances in the form of gas, vapor, or mist, is present. We offer ATEX-compliant controls for our explosion-proof design agitators. Talk to us and make use of our many years of experience on the topic of explosion protection. We will be happy to assist you! Our services in the field of explosion proof agitators

Geppert Ruhrtechnik offers you a modern working environment with extensive additional services, individual training and further education opportunities as well as health offers. Whether you are a pupil, student, graduate or experienced professional: with us you can contribute your knowledge and skills in a targeted manner. We look forward to committed and passionate people who want to work together towards our goals.

For over 50 years, Geppert Ruhrtechnik has stood for quality and reliability in agitator construction. We develop, manufacture, and distribute innovative agitators for all applications in the materials processing industries, such as the chemical, pharmaceutical, biotechnology, and food industries, as well as in water and wastewater treatment. Our many years of experience make us the perfect partner for both standard and special applications. When selecting and designing our agitators, we draw on our many years of experience, internal databases, and state-of-the-art tools (such as FEM, Finite Element Method, and CFD, Computational Fluid Dynamics), as well as our own fluid mechanical laboratories. This means we always provide you with the optimal solution. In addition to our agitators, we manufacture suitable containers and stands for stand-alone, wall mounted, and mobile designs. We can implement these in your plants, taking into account any its specific requirements.

In the manufacture of semiconductors, agitators are mainly used in conditioning of polishing and cutting suspensions, etchants and other auxiliary chemicals, cleaning solutions, or in chemicals recycling. Requirements placed on stirring systems are extremely demanding. Almost always, clean room conditions prevail, meaning that drives and seals must be designed with no abrasion or leakage. Parts that come into contact with the medium, such as the shaft and stirring element, often have to be produced with metalfree surfaces due to the aggressiveness of the media and the purity requirements. Also in this area, Geppert Ruhrtechnik can look back on a very successful history. All well-known chip manufacturers belong to our client base, as well as the manufacturers of the specialty chemicals used in this field. In addition, our agitators are used in broad solar cell production areas.

The pharmaceutical and biotech industry involves a wide range of mixing tasks, for which precision and consistence are of utmost importance. Particles must be evenly suspended and homogenized in liquids for filling processes. In some cases, multiple processes, such as for example heat transfer, rapid mixing, or material transport, must take place simultaneously within one reactor. Specific requirements are often placed on the drives, if for example production is carried out under clean room conditions. The surface quality of the stirring elements must always meet the highest standards; they are therefore usually electropolished. Our agitator solutions for the pharmaceutical and biotech industry are engineered and manufactured to customer-specific requirements. Selection of the agitator, as well as of the drive and sealing concepts, depends on the process and customer specifications. We will provide all the necessary design calculations, or simulate the mixing process.

Paints and coatings play a significant role in our lives. Without them, life would be dull and even monotonous. But they don’t just provide color. They perform a multitude of other tasks as well. For example, they protect objects or structures from corrosion and deterioration, thus contributing to the sustainable use of resources. Equally, special coatings can contribute to a reduction in flow resistance, or create a pearled finish that makes objects easier to clean and reduces contamination. Paints and coatings generally consist of binders, fillers, pigments, solvents, resins, and perylene, as well as additives. These substances must be mixed together homogeneously during the production process. Various agitators are used to achieve this, for example dissolvers, depending on the process step and according to the boundary conditions.

Mixing of substances and chemical reactions are closely interconnected. The way in which different reagents are mixed together can have a significant influence on product quality, product yield, or even on the resulting product itself. Stirred reactors are used in the chemical industry for a range of applications. They can be used for reaction, extraction, distillation, crystallization, and other processes. Depending on the reactor process and operating mode (continuous, semi-batch, or batch operation), the agitators used can be subjected to varied demands. In the petrochemical industry, emulsification, absorption, desalination, alkylation, or neutralization processes are commonly found; lubricating oils must be homogenized or sludge oils suspended. For this wide variety of mixing tasks, Geppert offers tailor-made agitators to satisfy operational and customer requirements.

Challenging, customer-specific mixing technology solutions can be numerically simulated as early as during the planning phase, and the results analyzed. This means increased design confidence, high-quality solutions and, as a result, reduced project durations and costs. Our experts from THINK Fluid Dynamix® are specialists in the application of numerical techniques such as flow simulation in real time and artificial intelligence methods for automated optimization. This enables processes, such as stirring and homogenization, to be analyzed more accurately under consideration of all applicable process parameters, and complex tasks to be processed far more efficiently. These methods set entirely new standards in terms of design reliability and efficiency. Allow us to contribute to your success!

The SV 30 is a small stand mixer with manual stroke adjustment and spring suspended lid for small batches that range in volume from 20 l up to 100 l and agitator drives of up to 1.5 kW. It is supplied with helical gear agitators of up to 0.75 kW or fast running agitators of up to 1.5 kW and the suitable mixing elements. Thanks to the H stand as well as two hook blocks, the SV 30 can be moved. The weight is balanced by means of a counterweight positioned in the stand column itself. The pneumatic supply is guided through a laterally mounted energy chain. Explosion-proof design ATEX 2014/34/EU feasible.

Double column wall mounted stand mixer/floor stand mixer Rigid stand for wall-mounting or floor stand for mixers from 100 kg. The stand consists of 2 u-shaped columns with a ball-borne support slide with a cantilever beam for the mixer. The double-column stand allows the processing of tank volumes up to 4 m3, depending on the tank dimensions. Mixer powers up to 75.0 kW and support loads up to 1,000 kg can be realized. Under these conditions, the stand can be equipped with all fast running or gear-reduced mixers and their matching agitator elements. The lift is done electrically by a lift drive and chain drive. The electric supply is guided through a laterally mounted energy chain. Customized solutions for instance a stand mixer with H foot or stand equipped with coaxial agitator type KRK are feasible.

Rigid stand for wall-mounting for tank volumes from 100 l. Mixer powers from 0.37 kW to 7.5 kW and support loads up to 100 kg can be realized. Under these conditions, the stand can be equipped with all fast running or gear-reduced mixers and their matching agitator elements. The lift is done by a geared hand-wheel or electric with a lift drive and chain drive. The mixer is positioned on a cantilever beam which is fixed to a support slide that is moved on the stand column. The electric or pneumatic supply is guided through a laterally mounted energy chain. The stand WRW is available in two standard sizes, thus enabling the processing of various tank sizes. The standard sizes are particularly designed for the processing of exchangeable vessels such as drums and IBCs.

Mobile stand with H-foot for tank volumes from 100 l. The mobility of the tripod is ensured by using castors and fixed castors. The tripod can be moved due to The lift is done by a geared hand-wheel or electric with a lift drive and chain drive. Mixer powers from 0.37 kW to 7.5 kW and support loads up to 100 kg can be realized (with ex-protection only realizable to a limited extend). Under these conditions, the stand can be equipped with all fast running or gear-reduced mixers and their matching mixing elements. The mixer is positioned on a cantilever beam which is fixed to a support slide that is moved on the stand column. The FRW is equipped with fixed and steerable wheels for mobility. The electric or pneumatic supply is guided through a laterally mounted energy chain. The mobile stand mixer FRW is available in two standard sizes that are particularly designed for the processing of exchangeable vessels such as drums and IBCs. Various tank sizes upon request.

Rigid stand with H-foot for tanks that range in volume from 100 l. Under these conditions, the stand can be equipped with all fast running or gear-reduced mixers and their matching mixing elements. Mixer powers from 0.37 kW to 7.5 kW and support loads up to 100 kg – by means of a reinforced stand loads up to 300 kg – can be realized. The agitator is positioned on a telescope sleeve that is moved via the spring-suspended lid connected to the stand. The lift is done by a geared hand-wheel or electric with a lift drive and chain drive. The mixer is positioned on a cantilever beam which is fixed to a support slide that is moved on the stand column. The electric or pneumatic supply is guided through a laterally mounted energy chain. The floor stand mixer SRW is available in two standard sizes that are particularly designed for the processing of exchangeable vessels such as drums and IBCs. Various tank sizes upon request.

Electrical tote tank mixers for stainless steel IBCs The LRK-C series tote tank mixer and their drive units LRK-A are a special solution designed for operation on stainless steel containers with filling openings of at least 400 mm and mixing volumes from 400 l up to 1,500 l. The customer may choose between various viscosity-related basic versions of fast-running and slow-running mixers with electric drives. The mixing unit that remains in the container is connected to the drive unit with a bayonet coupling and a clutch. The drive is dismountable so that one drive unit can be used for several mixer units interchangeable. The mixer is mounted on the container’s manway lid, which is clamped with butterfly screws or a clamp ring. The agitator shafts are borne in a bearing housing, which is welded into the container lid on the product side. The impellers are designed to fit through the filling opening DN 400 when being inserted.

The CRP-M tote tank mixers are featured with a pneumatic drive and were designed for the application in stainless steel tanks with filling openings of at least 400 mm and mixing volumes of 400 l to 1,500 l. The fast running pneumatic agitators are equipped with bearing and coupling housings. By means of the maintenance unit, pressurized air is enriched with oil for the vane drive. The mixer is mounted on the container’s manway lid, which is clamped with butterfly screws or a clamp ring. The manway lid is supplied by the container manufacturer or by the customer. The impellers are designed to fit through the filling opening of at least 400 mm when being inserted. All CRP-M series can be supplied as follows: Lid Muffler Explosion-protection design

The tote tank mixers CR-M are designed for operation on stainless steel containers with filling openings of DN 400 mm and mixing volumes from 400 l up to 1,500 l. Depending on the viscosity of the mixing material, CR-Ms with fast running or gear reduced drives are available. The agitator shafts are connected to the drive shafts with sleeve couplings or borne within the gear’s hollow shaft (worm gear). The agitator shafts are balanced for concentric run after assembly. The mixer is mounted on the container’s manway lid, which is clamped with butterfly screws or a clamp ring. The manway lid is supplied by the container manufacturer or by the customer. The impellers are designed to fit through the filling opening DN 400 when being inserted. The electric container mixers are delivered with on-/off-switches with low-voltage breaker. The electric container mixers can also be supplied with frequency converter drives. All CR-M series mixers can be supplied as follows: