Application of Vinyl ester resin resin in copper, zinc, nickel and other non-ferrous metal smelting industries

The copper, zinc, and nickel smelting process mainly includes the acid production section, leaching section, electrolytic purification section, and back-end tail gas purification and environmental protection section of the roasting flue gas, belonging to areas with severe corrosion. It is necessary to carry out anti-corrosion measures on the floors, walls, roof surfaces, steel structures, storage tanks and other buildings (structures) of each operating section of the factory building. At the same time, a large number of equipment and pipelines are also made of lightweight, high-strength and corrosion resistant glass fiber materials, which are inseparable from high-performance corrosion resistant Vinyl ester resin resin.
1. Production workshop building and ground anti-corrosion
Buildings and floors are mainly used for equipment, pipeline flushing, corrosive liquid corrosion, vehicle loading, maintenance, and other operating conditions that affect operation. Therefore, both buildings and floors need to consider anti-corrosion, compressive, and wear-resistant requirements simultaneously; The floor, ground and skirting board (300-400mm high) shall be Vinyl ester resin resin paved acid resistant block structure, and blocks of different thickness shall be selected according to the load bearing conditions of each part (blocks can be natural stones or fired acid resistant ceramics), or Vinyl ester resin resin resin monolithic mortar structure.
2. Wall and internal roof surfaces
The walls and top surfaces of houses are mainly subject to vapor corrosion caused by sulfur and Chlorate fog. Therefore, corrosion-resistant coatings are selected for protection, mainly using high chlorinated polyethylene or polyurethane corrosion-resistant coatings, with two bottoms and two sides constructed.
For the skirt under the electrolytic cell (height below 150mm), consider electrolyte scouring, and choose Vinyl ester resin resin with three cloth and five oil glass fiber reinforced plastic protective structure.
3. Tank and other structures
The structure of the tank mainly includes the stirring tank, leaching tank, thickener and other equipment operating in high-temperature and high acid environments in the leaching and purification section, as well as the electrolysis tank, circulation tank, and large capacity waste acid wastewater tank in the tail gas purification and environmental protection section of the electrolysis section; This type of equipment needs to comprehensively consider high acid, high temperature, high wear conditions, as well as electrical insulation performance.
Mixing tank, leaching tank and thickener with mixing device shall be 6-8mm thick Vinyl ester resin resin covered with glass fiber reinforced plastic composite layer and acid resistant ceramic tile structure. The electrolyzer shall also have excellent electrical insulation performance, and adopt concrete lining FRP structure or Vinyl ester resin resin monolithic pouring tank structure.
The waste acid and waste water pool (accident pool, buffer pool, regulation pool, neutralization pool, stabilization pool, etc.) are mainly lined with 5-6mm thick Vinyl ester resin resin composite fiber reinforced material.
4. Indoor steel structure
Indoor steel structures mainly include roof beams, steel structural columns, pipelines, ladders, etc. This part belongs to the acid mist vapor phase corrosion environment, and there is a certain degree of liquid medium splashing condition. Vinyl ester resin resin flake coating protection system (two bottoms and two sides) shall be selected.
5. Vinyl ester resin resin FRP equipment such as storage tank, pipeline, grille and inner cylinder of FRP chimney
The selection of Vinyl ester resin resin and auxiliary materials for this part of equipment shall comprehensively consider corrosion resistance, physical performance, weather resistance, environmental protection, flame retardancy and other factors according to specific working conditions.

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