WATERLIFE VACUUM VACUUM CLEANING SYSTEM FOR MODIFIED ALCOHOL

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Sharlene Hubbard
5 years ago
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1 WATERLIFE VACUUM VACUUM CLEANING SYSTEM FOR MODIFIED ALCOHOL

2 TYPE OF EQUIPMENT The washing machines for metals Waterlife Series Vacuum machines are the single room type. In a single processing station the degreasing, rinsing and drying operations are carried out. This allows to content space and optimize the workflows. SOLVENTS USED Non-chlorinated hydrocarbon solvents class AIII with flashpoint> 55 C and precisely: - aliphatic hydrocarbons - modified alcohol Compared to the use of chlorinated solvents used in metal washing classical use of alcohol modified allows you to have regulatory benefits, with the same result degreasing, being classified only irritant (Xi, S36-38) instead of suspected carcinogens (Xn, R40), such as perchlorethylene. PARTS OF THE PLANT The machine is composed of the following parts: - Main treatment room equipped with pneumatic hand closing door. - Standard size solvent storage main tank. Increased size tank is optional. - Solvent distiller with cycle and total distilling built-in functions - Trappole fredde per la condensazione del vapore prodotto dal distillatore, a 30 C e a + 10 C. - Cold traps for the steam condensation produced by the distiller, at - 30 C and + 10 C. The installation of the cooling unit to +10 C is optional and saves the use of network water in the process. - Vacuum vane pump - Management control circuits and 10 " Touch Screen to interface with the operator.

3 TREATMENT CYCLE AND VACUUM ACCESSORY PHASES The treatment cycle - degreasing, rinsing and drying - and accessory phases - filling, distillation and filter replacement - are carried out under vacuum. The execution of these processes, at lower pressure than the atmospheric one, allows to obtain benefits either in regards of emissions, than in regards of the quality of treatment. The almost total absence of air makes it possible to achieve a degreasing: - Deep and penetrating even in cases of very small parts with hollow and porous materials such as sintered ones - Practically not affected by the phenomenon of "bell" which results sometimes in blind holes and the interstices PHASE SEQUENCE 1) Insert the basket containing the pieces in the treatment chamber and close the manual door 2) Suck the air contained in the chamber until the working pressure is reached 3) Enter the hot solvent in the working chamber 4) Start the settable life degreasing cycle 5) Empty the chamber and enter the saturated steam for the rinsing phase 6) Suck the steam and condense it by the integrated cold traps 7) Restore the atmospheric pressure inside the chamber 8) Open the manual door

4 DETAILED DESCRIPTION OF THE WASHING CYCLE PHASES PHASE PRESSURE DURATION DESCRIPTION 2) Initial aspiration 100 mbar * Air is drawn around the pieces to allow the entering solvent to reach every surface of the pieces, eliminating the "Bell" phenomenon. 3) enter the solvent 100 mbar * hot solvent is entered in the treatment chamber, at about 60 C. the solvent comes from the main storage tank. 4) Start the degreasing cycle 5) empty the chamber and entry saturated steam 6) suction and steam condensing 7) Restore the atmospheric pressure 100 mbar 100 mbar settable by touch screen In the basic version the degreasing cycle is carried out via spray or hydrokinetic action. The chamber will reach two different filling levels, according to the degreasing cycle set by the operator. 200 mbar * At the end of the degreasing cycle the chamber is emptied and filled with saturated steam, at about 120 C. The steam carries out two functions; condenses on surface of the pieces rinsing them by distilled liquid and heating them up to its temperature, thus performing the drying phase. Once the thermal equilibrium is reached, the condensation process ends, elimininating the liquid from the surface of the pieces. 50 mbar * Through the action of the vacuum pump the pressure inside the chamber is lowered compared to the previous phase, and the vapor is sucked and piped to the integrated cold traps. the condensate is fed back into the storage tank. 1 bar * The pressure inside the treatment chamber is restored to the environment value, thus allowing the operator to open the door. * the duration of the phases marked with an asterisk is automatically set by the machine

5 DETAILED DESCRIPTION OF THE ACCESSORY PHASES PHASE PRESSURE DESCRIPTION Filling 200 mbar The solvent is sucked from the outside drum through the vacuum generated in the tanks of the machine. Filling ends once level is reached. Distillation setting 1 Normal distillation Distillation setting 2 Intense distillation for sludge collection Distillation setting 3 Intense distillation 200 mbar At hidden time, during normal use of the machine, distilled solvent is continuously produced at the rate of 80 l / h. During this phase, oil & pieces are moved from the main tank to the distiller. 200 mbar Always carried out during the machine cycle, has the purpose of separating the solvent by pollutants, by condensing the entire content inside the distiller. 200 mbar Is carried out with the machine in stand-by and the purpose is to purify the whole solvent conteined in the tanks. Filters replacement 200 mbar The filters before replacement, are dried by the solvent contained inside the vacuum piping.

6 DESCRIPTION OF THE MAIN PARTS OF THE MACHINE TREATMENT CHAMBER It is made of AISI 304 of proper thickness and is layered with glass wool to reduce heat dissipation. The chamber is equipped with: - front hinged closing door manually operated and with pneumatic locking - vibrating level controls for the determination of the filling level - PT100 temperature probe for the management of the of rinsing and drying phases - Pressure transducer - diaphragm washing pump with 6 bar maximum pressure - spraying ramps for spray or hydrokinetic washing - vane pump for the generation of the depression - device for retaining the drum with static, rotary or tilting washing functions - automatic shut-off valves STORAGE TANK It is made of AISI 304 of proper thickness and is layered with glass wool to reduce heat dissipation. The tank is equipped with: - resistance for the heating of the solvent at surface specific low power - vibration minimum level control - PT100 temperature probe - pressure transducer - overflow control device for the cascade connection with the distiller - diaphragm washing pump with 6 bar maximum pressure - vane pump for the generation of the depression - device for retaining the drum with static, rotary or tilting washing functions - automatic shut-off valves DISTILLER It is made of AISI 304 of proper thickness and is layered with glass wool to reduce heat dissipation. The distiller is equipped with: - indirect heating of the solvent with oil - vibration level control - PT100 temperature probe - pressure transducer - vane pump for the generation of the depression - Front bulkhead window for inspection - automatic shut-off valves

7 FILTRATION GROUP The machine is equipped with a solvent filtration system used for degreasing, consisted of a AISI 304 vessel and cartridge filters, also in stainless steel. Optional is proposed the filtration circuit in automatic by-pass, which allows the replacement of the clogged filters during the machine cycle. VAPOR BREAK DOWN GROUPS They consist of appropriately sized chillers and related recovery circuits. The main cooling can also be made with tap water. The basic version includes the -30 C group. Optional is proposed the + 10 C group, which avoids the connection to the water supply. AUTOMATION, WIRING AND CONTROL PANEL Wiring is housed under the fairing. The automation is controlled by PLC and operator s interface is achieved through a wide 10 " Touch Screen. The basic version allows the storage of 10 cycles (formulas). ACCESSIBILITY FOR MAINTENANCE The machine is designed to be easily accessible in all its parts, by removal of the side cowlings. ABIDED REGULATIONS The machine complies with the regulations in terms of emissions, and is delivered together with CE certification of conformity. It is also built according to the European Standard N for maximum operator safety and work environments.

8 NAME Large solvent tank Automatic by-pass Filtration OPTIONALS DESCRIPTION It allows to increase the capacity of the solvent tank, thus to have greater dilution capacity and cleaner solvent. It consists of a filtering track parallel to the main one and related fittings. It allows the replacement of the clogged filter, without stopping the plant C Chiller It is a machine built-in device, avoiding the increase in size. It makes a self-supporting machine and allows to save a water during the cycle. Transducers and ultrasonic generators STANDARD SIZE * Consists of the installation of a group of generation of cavitation inside the treatment chamber. Basket Size [ mm ] Basket carrying capacity [ Kg ] 200 x 300 x 150 h x 450 x 200 h x 360 x 260 h x 450 x 300 h x1200 x 800 h 800 * Machines are also manufactured with dimensions on the customer specific needs

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