NORMAG bubble cap tray columns are characterized by optimized liquid flow and residence time distribution, as well as optimal mixing of liquids and steams. The design entirely fulfills the main requirements of laboratory and pilot columns - constantly high separation effect and reproducibility over a wide operating range.
Bubble cap tray columns are made of borosilicate glass 3.3
Vacuum insulated and silvered jacket with sight strip
High reproducibility and efficiency due to NORMAG-design
Consistently separation efficiency and high reproducibility for wide operating range
Processing of minimal product volume
Best tested bubble cap tray columns for laboratories and technical centers therefore ideally suited for
- process optimization
- feasibility study
- teaching experiments
Glass-lining ABRISIST was specially developed for all processes with solids in liquids. High abrasive wear resistance under hydroabrasive conditions of ABRISIST allows to increase the lifetime of the equipment strikingly. Especially fine bubble structure ensures improved corrosion and abrasive wear resistance.
THALETEC ABRISIST is available in 3 different colour varieties:
- ABRISIST/b: colour medium dlue, satin finish
- ABRISIST/w: colour pure white, satin finish
- ABRISIST/VC: colour medium blue, satin finish with wear indicator (white)
ABRISIST/VC (Visual Control) consists of a corrosion-proof and wear-resistant ABRISIST/w layer that is covered by a layer of ABRISIST/b.
Using a white layer of ABRISIST/w allows controlling the coating. The abrasive or corrosive wear of the glass can easily be checked visually. Due to ABRISIST/VC the replacement of the affected part as well as maintenance of the equipment can be scheduled.
THALETEC has developed a special turbine АМТ – agitator with wear-optimized geometry especially well suited for hydroabrasive and corrosive mixing processes. Typical applications include crystallization, the suspension of solids, stirring floating particles.
Special shape of this agitator allows to increase glass thickness in wear-critical areas what helps to extend not only the operational time strikingly but also the availability of the equipment. The agitator provides optimal agitating effect in suspension processes.
THALETEC glass-lined apparatus are used for different processes with corrosive media such as acids, solvents etc. The patented glass-lining THALETEC CONDUSIST continuously diverts electrostatic charges from the glass-lined reactor and thus prevents damage to the glass-lining layer. The risk of a spark being ignited is reduced and the application area of glass-lined apparatus is significantly extended.
- The entire glass-lining is electrically conductive. Thus conductivity remains even after corrosive attack of the glass-lining until its limit of use.
- Chemical resistance of THALETEC CONDUSIST corresponds to that of the well-known RAS GLAS
- CONDUSIST has no catalytic action
- All relevant components can be made with an antistatic glass-lining
- CONDUSIST according to DIN EN ISO 28721-1.
This system with controlled oscillating beams is suitable for all powdered bulk solids (from cohesive to hygroscopic) with a particle size of 0.01 μm to about 70 mm and a bulk density of 50 to 3000 kg/m3. The unique construction operates without vibration, the use of air and rotation. This allows eliminating all the shortcomings related to similar technologies.
The Oszillomat system, sized from 0.2 x 0.3 m to 5 x 10 m, can be used in cylindrical or rectangular silos and hoppers as a dosing and discharging system with variable control. It can also be integrated into the operating silos at plant.
Multigon silos due to their design with flexible internal walls effectively prevent the adhesion of materials to the inner walls. The octagonal cross-section of the Multigon silo cells in combination with the smooth transition to the chute (without blanking zone) and the Oszillomat discharge system allows the silo’s contents to be continuously maintained in an active state, thus providing a mass flow. This technology is ideal for cases where it is not possible to use hoppers with a discharge chute, as well as for rectangular and square discharge systems. Multigon silos are installed inside and outside the workshop, providing safe storage of hygroscopic, thermo- and moisture-sensitive bulk solids.
Container Mixer MIXACO consists of a mobile container and the actual mixer.
The container serves as transport container, as mixing container during mixing and as reservoir container for the further processing.
The container filled with raw materials is connected with the mixing head of the mixer and turned through 180° into the mixing position.
After mixing has been completed and the mixer has been turned back into its basic position, the mixed product in the container is transported on for the further processing.
In the cleaning position, the mixer can be cleaned quickly and without any residues being left.
Comparing with usual technologies, the use of Multi-Tool decreases tenfold the heating of the material: mixing components are heated only to 0.5-1°C per minute. This became possible due to the special arrangement of the mixing instruments.
During high-pressure grinding in roller presses coarse materials, such as cement clinker, ore or limestone, are briefly subjected to very high compressive forces. The sheets thus produced can be ground and thus reduced to the desired final particle size with minimum energy requirements.
High-pressure grinding rollers (HPGR) are employed in various combinations with other equipment for preliminary and finish grinding. Energy savings is the most important factor for using this technology.
Depending on the grinding system used, capacity improvements of up to 250% and/or a reduction of the specific energy consumption of up to 40% can be achieved. To suit the respective application, three different types of rollers are available:
Rollers with tires
Rollers with segments
The following wear protection systems can be applied:
Hardfacing by welding
Köppern high-pressure grinding rollers are easily operated and maintained. Thanks to drive and roller components being arranged separately, the rollers can be quickly removed and replaced for maintenance needs.
Wearing parts of the gravity-type feeder can be simply replaced from the outside. Various drive systems are available. Materials presently treated in high-pressure grinding mills cover:
Hot briquetting is carried out at feedstock temperatures ranging between 250 and 800°C. Briquette machines yielding individual briquette volumes between 20 and 150 ccm are typically used in hot briquetting.
The hot briquetting process is employed either for quality or process technological reasons and necessitates comprehensive engineering expertise, experience in the manufacture of machinery, profound process-oriented knowledge as well as highly qualified commissioning personnel. Hot briquetting plants have been used for the processing of sponge iron, lead/zinc waste, metallurgical dust, magnesium oxide and coal.
briquetting of sponge iron from different direct reduction processes to produce HBI ( Hot Briquetted Iron ), an internationally traded premium source of iron units for the steel industry,
briquetting of metallurgical wastes to enable an environment-appropriate recycling
Besides the briquetting machine, Köppern´s scope of supply for hot-briquetting systems also includes
cooling systems for the product, etc.
Köppern´s range of services is completed by extensive specifically developed test programs and systems for the design of machines and plants.
For cold briquetting of material with temperatures of up to 100°C / 212°F it may be necessary to add binders to improve the briquette forming characteristics. Typical briquette sizes range between 1.5 and 250 ccm. As a result of the symetrical pockets machined into the surfaces of the rollers, briquette machine production yields very uniform briquettes. Binders are primarily used for the briquetting of substances that have an inadequate adhesive power and are unable to produce a firm briquette.
In this manner, coal dust has been converted into oval shapes used as domestic fuel for more than 100 years now. Material to be briquetted without additive binders is fed between two counter-rotating profiled rollers via suitable feeding equipment.
The feedstock is drawn into the briquetter and pressed through the gap between the rollers. As a result of its void volume being reduced, the bulk materials apparent density will be compacted by factor of 1.5 - 3.
The machinery used for compaction and briquetting is identical, but there is one noteworthy difference: in lieu of the matching molds used in briquetting, the surfaces of the compaction rollers are smooth, corrugated or waffled. In the event that the fineness of a single- or multi-component bulk material causes drawbacks such as segregation, agglomeration, unfavorable flow characteristics or dust losses the process of compaction/granulation is employed for size enlargement.
Press agglomeration in the absence of binders via roller presses is a basic process by means of which a size enlargement is achieved primarily without the material bridges between particles being established with the aid of binding agents. Instead, the molecular forces of interaction play a significant role, but only if the individual particles can be brought together as closely as possible. This calls for external compressive forces to be applied.
If solid substances compression takes place in the gap between two smooth or profiled rollers running counter to each other, this is known as compaction. A compaction in conjunction with downstream crushing or classifying operations forms the compaction/granulation process. The principle design of a compaction/granulation system is evident from the following diagram assuming a multi-component bulk material to be processed which is used, for example, in the compaction of mixed fertilizers/NPK.
The system comprises four machinery and vessel groups essentially used to perform the following process steps
Storage, dosing and blending
Crushing and classifying
By means of various conveying systems such as bucket elevator, belt and chain conveyors as well as other conveying devices, the material is transferred to the individual process steps.
This technology is frequently used for the compaction/granulation of potassium chloride (MOP). Millions of tons of granulate are thus produced each year. The largest Köppern presses in operation feature a throughput capacity close to 130 t/h. The granulate yield depends on the particle size range as well as type and treatment of the crude salt and ranges between 35 and 55 t/h with a granulate size of 1-4 mm.
Aside from using the compaction/granulation process for the treatment of individual fertilizers ((i.e. potassium chloride (MOP), potassium sulfate (SOP), ammonium sulfate (AS)) it is also employed for mixed fertilizers (NPK fertilizers).
Further applications are in the chemical industry and salt mining.