Production of fabric softener with LEWA production units

Plant concept

Example: System control - Illustration of process step "surfactant dilution"

1. Features:

• Process control via PLC
• Central operation and monitoring of the process using control panel on the unit; user prompts and input using touch display
• Recipe management and creation using laboratory PC or plant PC
• Visualization of processes using logically connected graphic displays with overlaid operating messages, measured values and graphs

2. Equipment:

• Selection of tank design and sizes according to logistic data
• Tank accessories take into account the requirements for operation and system monitoring
• The right pump is selected and designed for each component to be metered
• Separate flow recording with continually measuring, highly precise flowmeters for each conveyor line
• Blending using dynamic and static mixers and, if necessary, mixing loops
• Sampling connections for quality monitoring
• Plate heat exchanger for temperature control
• Steam sterilization possible, creating the basic prerequisites in the closed system to render use of preservatives unnecessary
• Can be split on request for a master batch application/post finishing process

LEWA supplies the entire system from a single source:

Design, engineering, construction and delivery of the system, scope of service on request, complete with:

• Tank farm / storage containers
• Material transport from storage to the plant
• Temperature control
• Metering of individual components
• Mixing of components
• Cooling / total thermotechnical concept, if required
• Cleaning concept (CIP/SIP)
• Instrumentation
• Control system / automation
• Or any of these functional groups individually
• Selection of equipment in regards to material, dimensions, and quality to achieve an optimum cost/benefit ratio
• Consideration of specific on-site features in regard to layout planning, material flow, accessibility
• Consistent implementation of environmental protection requirements using the principles of "reduce, reuse, recycle" for both materials and energy
• Continuously operating system with the basic intention of introducing only the smallest possible quantities into the production process, avoiding losses when changing recipes or keeping them as low as possible
• Reduction of flushing agent quantities during the cleaning processes
• Recycling of product volume not conforming to specifications in the recycling process
• System operation only requires instruction on the operating system and main components of the system

The most important variables influencing pricing are:

• Degree of automation
• Scope and number of functional groups
• Scope of individual additional requirements
• Number of components and recipes