Design layout and construction experience of intelligent coating production workshop

Design layout and construction experience of intelligent coating production workshop



For coating enterprises, safety production is the primary premise for the survival and development of coating enterprises. As coating production is a representative production enterprise in the hazardous chemicals industry, due to the wide variety of raw materials, semi-finished products and finished products used in the production of coatings, and the vast majority of them are flammable, explosive, toxic and corrosive hazardous chemicals, coating enterprises want to develop with high quality and quantity. In addition to complying with the guidelines for the implementation of safety standards In addition to strengthening the control of enterprise safety management measures and personal protection and other middle and back-end operation measures, the front-end plant and practical decoration are the basic guarantee for coating safety production.



The coating production has the characteristics of short and uncomplicated process flow and strong operability. The main processes are raw materials refining, hot refining (refining), purification, mixing, grinding, paint mixing and finished product packaging. When designing the layout, the convenience of the production process will be considered first. For example, public facilities and warehouses shall be as close as possible to relevant production workshops to shorten the distance between people and logistics; The oil tank farm of raw material warehouse and the workshop of volatile paint will be considered to be arranged at the periphery of the plant to keep a certain distance to avoid fire and explosion accidents; Ordinary raw material warehouse and finished product warehouse shall be arranged close to the transportation route to facilitate the logistics in and out; The gas cylinder room or the workshop with dust shall be placed at the downwind. Of course, the area and composition of the production area (including the experimental detection area), the auxiliary area (raw material warehouse, finished product warehouse, etc.) and the office area are all designed based on the production scale as the first element.



For the coating production workshop, the fire protection system in the supporting system should be emphasized. Because the production of coatings is a process of grinding, mixing and color mixing with pigments, organic solvents, water, additives, etc. as raw materials, there are many kinds of products, so there are many kinds of raw materials. Many liquid raw materials have low flash points and are flammable and explosive organic solvents. Therefore, the fire risk of the coating workshop and raw material warehouse involving such low flash points and nitrocellulose warehouse is class A. During the design, the designer shall pay attention to the centralized introduction of the dust removal air duct and the exhaust air duct in the production area to the outdoor air at a height of 15 meters. A high fire dike can be set around the raw material warehouse and oil tank area. The indoor fire hydrant, outdoor fire hydrant and automatic sprinkler share one system, which is a stable high-pressure system. The hydrant water supply pipe network and automatic sprinkler pipe network outside the power plant shall be separated. The main pipe diameter of the automatic sprinkler system connected to the plant and warehouse is DN200.



Taking a large paint manufacturer such as Nippon Paint as a model, its latex paint production line has been upgraded to the world's most advanced automatic production system - DCS control system. The integration of MES system and SAP system realizes intelligent production scheduling. The production line is fully automated, and automatic material preparation, automatic feeding and automatic production are carried out in an orderly manner. The production efficiency can reach 30 tons / 45min. This is also the goal of the coating manufacturers.



In order to build an Intelligent Coating Factory, in addition to making reasonable plane planning, we should also focus on the design of water, electricity, gas, network and communication pipelines and the rationality of intelligent lighting, HVAC system, access control card, security alarm, fire alarm and video monitoring system. He has rich experience in the design and decoration of intelligent factories, and is familiar with the reasonable planning of intelligent plants, the design and decoration of supporting systems, and the cost budget. In particular, the factory with its own R & D or testing laboratory scale involves many professional contents, including intelligent production line planning, intelligent ventilation system, intelligent numerical control technology, etc., and has rich practical experience in various applications. In the face of the constantly developing tide of industrial reform, we are willing to work with many excellent enterprises to carry out the practice of intelligent factory construction and help enterprises realize the grand goal of industry 4.0 as soon as possible.