CHEMICALS & DOSING EQUIPMENT
GOING ELECTRIC
When it comes to controlling the dosing of liquid laundry detergents, going electric definitely isn’t ‘selling out’. This is the view of Max Adam, Sales & Marketing Director at RP Adam, who discusses the benefits of electronic dosing systems.
By electronically controlling the dosing of liquid laundry detergents, we can ensure that the correct amount of laundry chemicals are used in every wash cycle, which in turn will yield the best possible wash results as cost effectively as possible.
Because the systems are pre- set and automated, there is little chance of human error and less chance of chemicals being wasted unnecessarily. Achieving the optimum chemical dose rates can sometimes involve a bit of trial and error on a new installation, but the default calibrations are always calculated mathematically, based on loads and wash types.
This sophisticated equipment is hugely flexible and can be programmed to dispense all laundry chemicals at whatever dose levels are required for each wash programme. Most modern washer extractors can have up to 20 different wash programmes so this level of flexibility is essential. For example, detergent levels can be set at different levels depending on wash loads, softeners can be added at
54 | Tomorrow’s Cleaning
different levels or not added at all, or specialist chemicals such as emulsifiers or starches can be programmed as required. Likewise, there might be a requirement for hypochlorite bleach to be dosed into some cycles for low temperature disinfection. The number of dosing permutations caters for all launderers requirements.
Most modern electronic dosing units also have the capability of providing various management reports that can be used to monitor chemical consumption and/or monitor the programmes selected by the operative over a period of time.
CHEMICAL CONTROL
IN A LIQUID SYSTEM A basic On-Premise Laundry (OPL) dosing unit usually has two, three or four chemical pumps (but can have more if required). The laundry dosing unit is programmed to deliver different pre-set amounts of laundry detergent, destainer, fabric conditioner, and/ or additional specialist chemicals which, when combined, will make
up a chemical wash formula for the appropriate type of wash load.
On most occasions the chemical supplier will supply the dosing unit with a cable-connected controller which enables the chemical supplier to accurately programme the amounts of chemical that each pump should deliver. When set, it is capable of storing up to 20 different wash formulas.
The volume of chemical concentrate that a pump can deliver is dependent on the size or capacity of the pump, the diameter size of the tubing and the length of time that the pump runs. Generally, a pump should be capable of delivering the required dose within 45 to 60 seconds so it is important that the correct sizes of pumps are chosen in relation to the demand/size of the washer extractor machines.
The programming of dosing equipment must be carried out by experienced chemical laundry technicians otherwise the system will be compromised and the laundry will not achieve optimum results. Chemical
twitter.com/TomoCleaning
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64 |
Page 65 |
Page 66 |
Page 67 |
Page 68 |
Page 69 |
Page 70 |
Page 71 |
Page 72 |
Page 73 |
Page 74 |
Page 75 |
Page 76