Chemical industry
Slime
Slime
Slime always occurs in the production of biodiesel and is removed, stored and pumped into tankers by decanters. The self-priming feature of the Boerger Rotary Lobe Pump supports and assures the smooth flow of slime. It will not be affected by any change in the viscosity. The wetted parts of the Boerger Rotary Lobe Pump is able to withstand temperatures of up to 125 °C. Due to the use of solvents here, the Boerger Rotary Lobe Pump is compatible with ATEX STANDARTS.
Technical data
Börger | Rotary Lobe Pump |
---|---|
Medium | Slime |
Temperature | 20 - 125 °C (68 - 257°F) |
Rated capacity | 2 - 60 m³/h (8,8 - 264 usgpm/h) |
Pressure | max. 6 bar (87 psi) |
Pesticides
Pesticides
A customer manufactures active ingredients for pesticides in batch production: herbicides, fungicides and insecticides. The active ingredient is spun into crystals or liquid in centrifuges. This is where the Boerger Protect Rotary Lobe Pump is used.
In the start-up phase of the centrifuge, the ATEX compatible Börger Protect has to achieve a high pump output. After filling, the pump is run via a bypass to prevent crystallization in the pipe line. This is then driven with less power. Other pumps showed poor results with regard to the partly high temperatures and the crystals. This active ingredient is processed again into the finished product in a downstream operation using Börger Rotary Lobe Pumps (4 x Boerger Protect) and a dispersing machine.
Technical data
Börger | Rotary Lobe Pump |
---|---|
Medium | Suspension with solvent content (toluol, methanol, isopropanol) |
Temperature | 10 - 120 °C (50 - 248°F) |
pH value | 3 - 9 |
Rated capacity | 15 - 40 m³/h (66 - 176 usgpm/h) |
Sodium sulphate
Sodium sulphate
The customer runs an amine recycling plant. The amine sulfate delivered is processed in a rectification system. Caustic soda reacts with the sulfuric acid contained in the amine sulfate. The result is a sodium sulfate solution which is pumped into a storage tank. The Boerger Protect Rotary Lobe Pump is used in the neutralizing process by adding sulfuric acid. The Boerger Protect pumps the sodium sulfate solution from the storage tank back to this storage tank. In the meantime, sulfuric acid is mixed in on the suction side. A pH value can be measured using a meter attached to the pressure side. This procedure is repeated until the sodium sulfate solution indicates a pH value of 7.
The eccentric screw pump previously used kept having problems with the sealing. As the air quality control requirements are applicable here, the Boerger Protect Rotary Lobe Pump was selected. The barrier pressure was set to 8 bar in the thermosyphon tank. If the pressure drops below 5 bar, a pressure switch turns off the system. The medium pressure is restricted to a maximum of 3 bar by a pressure transducer. This ensures the minimum barrier pressure of 2 bar above feeding pressure.
Technical data
Boerger | Rotary Lobe Pump |
---|---|
Medium | Sodium sulfate solution, partially with sulfuric acid |
Solids | Core sand with particle size up to 1mm |
pH value | 1 - 14 |
Temperature | 60 - 100°C (140 - 212°F) |
Natural latex
Natural latex
A positive displacement pump was needed that could handle natural latex with care. The temperature of the medium is not permitted to exceed 25°C while pumping due to the the risk of coagulation. The previous membrane pump frequently clogged and suffered from wear on the inlet and outlet valves.
A Börger Rotary Lobe Pump was equipped with a cooling system and installed. The Boerger Rotary Lobe Pump with its gentle pumping and the cooling system ensures the medium has an optimum temperature and that the system runs smoothly.
Technical data
Börger | Rotary Lobe Pump |
---|---|
Medium | Natural latex |
Rated capacity | 30 m³/h (132 usgpm/h) |
Pressure | 2 - 3 bar (29-44 psi) |
Hydrogen peroxide
Hydrogen peroxide
A chemicals provider needed a pump for installion on a tanker vehicle. The pump needed to convey hydrogen peroxide from a 1000 liter IBC tank (Intermediate Bulk Container) to the storage tank on a tanker vehicle. The same pump should also be able to discharge the storage tank again.
The pumped medium places heavy demands on the pump and the materials used in the pump In addition, hydrogen peroxide is very sensitive to contaminants (particularly metal).
The customer opted for a Börger Rotary Lobe Pump. Due to the wide range of material options. Börger built the ideal reversible rotary lobe pump for this particular application.
Technical data
Börger | Rotary Lobe Pump |
---|---|
Medium | Hydrogen peroxide |
Rated capacity | 15 m³/h (66 usgpm/h) |
Speed | 400 rpm |
Cosmetic products
Cosmetic products
An international manufacturer of aromas, oils, aromatic substances and cosmetic products required a chopper for shredding vegetable solids. The customer obtains fragrances and flavorings, raw materials, active ingredients and functional ingredients from various natural products such as leeks, onions, vanilla pods etc.
As part of this process, a chopper is needed to break down the previously chopped raw materials which are enriched with water. This chopper needs to be stainless steel and preferably have no space in which the solids could get stuck. The customer opted for a Boerger Multichopper pure. To ensure maximum safety during maintenance carried out on the Multichopper, a proximity switch was installed which prevented it from starting up if the quick-release cover was open.
Technical data
Börger | Multichopper pure |
---|---|
Medium | Vegetable-water mixture |
Speed | 508 rpm |
Throughput volume | 5 - 10 t/h (5 - 10 l.tn) |
Soap
Soap
A manufacturer of oleochemicals and additives was looking for a reliable pump for liquid detergent. Vegetable or animal fats are mixed with caustic soda and several other ingredients and homogenized in a mixer for making detergent. This mixture is then pumped to a reactor where a reaction occurs with the individual additives. This takes place at temperatures of approx. 120 – 130°C.
The previously installed rotary piston pump had cavitation problems at high speed and also caused severe vibration. The packing mechanical seals suffered leaks within a few days and had to be repaired and repacked which meant shutting down the plant.
The customer now uses a Boerger Protect Rotary Lobe Pump . The Boerger Protect is equipped with double-acting seal faces. These are pressurized via a thermosyphon system. The thermosyphon tank is cooled using an internal cooling coil and the temperature is dissipated via a heat exchanger. The pumped medium is not allowed to cool down during the process. The pipes on the suction and pressure side are heated. The Boerger Rotary Lobe Pump was fitted with a steam heating cover. That then keeps the medium at the required temperature while pumping. The task of the Boerger Protect is to circulate the medium in the reactor until a complete reaction has taken place. The plant is operated 24 hours a day.
Technical data
Börger | Rotary Lobe Pump |
---|---|
Medium | Liquid detergent |
Medium temperature | 90 - 170 °C (194 - 338°F) |
Rated capacity | 15 m³/h (66 usgpm/h) |
Pressure | 6 bar (87 psi) |
Ambient temperature | - 20 to + 50 °C (- 4 to + 122°F) |
Glycerine residues
Glycerine residues
A manufacturer of oleochemical additives and consumables was looking for a pump for conveying glycerine residues. Due to the viscosity and the high solids content of the medium, the centrifugal pump used so far had cavitation problems and, as a result, generated strong vibrations and running noises. Severe damage was caused to the mechanical seals and the impeller. The customer now uses a Börger Protect rotary lobe pump. The machine unit is operated continuously for 24 hours/day. During the process, the medium to be conveyed has a temperature of 80 to 145 °C and must not cool down. The suction- and pressure-side connections are heated. The Börger rotary lobe pump is equipped with a steam heater cover. It heats the pump casing.
Technical data
Börger | Rotary Lobe Pump |
---|---|
Medium | Glycerine residues |
Viscosity | 100 to 2000 mPas |
Temperature | 80 - 145°C |
Rated capacity | 6,5 m³/h |
Speed | 280 rpm |
Pressure | 3 bar |
Viscose
Viscose
A leading manufacturer of viscose special fiber, for use in medicine, for textile and hygiene applications or for special paper, was looking for a reliable pump for conveying viscose. Technical problems of the gear pump used frequently led to delays in the production process. The new Börger pump is equipped with a single-acting mechanical seal with O-rings made of fluoroelastomers. A quench chamber filled with hydraulic oil lubricates the mechanical seal and dissipates any developing heat from the seal. Air cannot come into contact with the seals due to the quench reservoir. Thus, crystallization of the viscose is not possible.
Technical data
Börger | Rotary Lobe Pump |
---|---|
Medium | Viscose |
Viscosity | 6.000 to 8.000 mPas |
pH value | 14 |
Rated capacity | 84 m³/h |
Speed | 245 rpm |
Pressure | up to 6 bar |
Soapstock
Soapstock
A company that has specialized in processing oleochemical raw materials uses a Börger rotary lobe pump for conveying soapstock. As the medium has a tendency towards hardening when the temperature is below 50°C, the pump was equipped with a heatable pump casing. In order to protect the pump from excessive pressure caused by the reduction of the pipe cross section (due to residues), the pump is equipped with a Variocap. If the pressure exceeds the predefined working pressure, the Variocap opens. The pressure is equalized due to the pumped medium flowing back. The Variocap closes automatically due to the pressure decrease.
Technical data
Börger | Rotary Lobe Pump |
---|---|
Medium | Soapstock |
Viscosity | 1 - 1.500 mPas |
Temperature | 80°C |
Rated capacity | 7 m³/h |
Speed | 200 rpm |
Pressure | 6 bar |
Cleaning agents
Cleaning agents
A manufacturer of high quality cleaning agents has only been using Börger rotary lobe pumps for conveying its cleaning agents since 2010. The pumps are used for raw material extraction, in the production area and for feeding the filling systems. In the process, gentle pumping of the cleaning agents is very important as otherwise they might foam up and cause problems with the filling operation.
Technical data
Börger | Rotary Lobe Pump |
---|---|
Medium | Cleaning agents |
Viscosity | 300 - 500 mPas |
Rated capacity | 5 - 12 m³/h |
Speed | 150 - 310 rpm |
Detergents
Detergents
A large manufacturer of detergents and cleaning agents uses Börger rotary lobe pumps for feeding its filling installations. The prepared detergents and cleaning agents are transported from the manufacturing area to the different storage tanks. The Börger rotary lobe pump conveys the final products with a viscosity of up to 3,000 mPas from the tanks into the filling lines. The rotational speed of the pump and the flow rate as a result are adapted to the filling process by means of a frequency converter. The pump has an ATEX-compliant design. Various parameters of the pump and drive are monitored by means of several measuring instruments which transmit them to an ERP system.
Technical data
Börger | Rotary Lobe Pump |
---|---|
Medium | Detergents |
Viscosity | 100 - 3.000 mPas |
Temperature | 20 - 65°C |
Rated capacity | 20 m³/h |
Speed | 330 rpm |
Pressure | 4 bar |
Tristyrylphenol
Tristyrylphenol
A chemical company uses two Börger rotary lobe pumps BLUEline Protect for conveying tristyrylphenol. The stainless steel pumps are equipped with double-acting mechanical seals. The Börger rotary lobe pumps empty the arriving tanker trucks and convey the tristyrylphenol to storage tanks. Due to temperature fluctuations of up to 40 °C the viscosity of the medium also varies. The rotational speed of the pumps and the flow rate as a result are adapted to the different viscosities of the medium by a frequency converter. Tristyrylphenol crystallizes when the temperature is below 80°C. For this reason, the pipelines and pumps are heated.
Technical data
Börger | Rotary Lobe Pump |
---|---|
Medium | Tristyrylphenol |
Viscosity | 65 to 2.000 mPas |
Temperature | 80 - 120°C |
Rated capacity | 19 - 25 m³/h |
Pressure | up to 6 ba |
Technical center pump
Technical center pump
The technical center of a chemical company uses a Börger mobile pump for conveying aqueous solutions, solvents and fatty acid methyl esters. The Börger control technology controls and monitors the entire mobile unit. The unit is operated by means of an operating device at the ATEX-compliant control cabinet. In order to use the mobile pump in potentially explosive atmospheres of the technical center according to ATEX directives, various measuring instruments monitor several parameters of the pump and drive.
Technical data
Börger | Rotary Lobe Pump |
---|---|
Medium | Aqueous solutions, solvents, fatty acid methyl esters |
Viscosity | 1 to 7.500 mPas |
Temperature | up to 150°C |
Rated capacity | 0,7 - 5 m³/h |
Pressure | 3 bar |
Melt
Melt
A manufacturer of plant protection products uses an ONIXline rotary lobe pump for conveying medium with a viscosity of up to 150,000 mPas. The pump made of duplex stainless steel sucks off the "melt" being formed in a thin-film evaporator and pumps it to a disperser. The pump was built in ATEX-compliant design and is equipped with Börger double-acting, pressurized mechanical seals as cartridge versions. The medium has a temperature of up to 140°C and must not cool down. For this reason, a heater cover is installed on the rotary lobe pump. The pump creates a much higher vacuum which is why the customer can produce much more efficiently.
Technical data
Börger | Rotary Lobe Pump |
---|---|
Medium | Melt |
Viscosity | up to 150.000 mPas |
Temperature | up to 140°C |
Rated capacity | 0,7 m³/h |
Speed | 20 rpm |