Industrial Valves for Blast Furnaces and Cement Plants
Evotech is a leading supplier of large industrial valves specifically designed to meet the rigorous demands of blast furnaces and cement plants. These valves are critical components in controlling the flow of gases, liquids, and solids in high-temperature and high-pressure environments. Evotech's products are known for their durability, precision, and reliability, making them a preferred choice in these heavy industries.

Product Overview
Types of Valves

1. Hot Blast Valve: These valves control the flow of hot air (blast) into the blast furnace. They are designed to withstand high temperatures and abrasion from the hot gases and particulates in the blast.
2. Gate Valve: Gate valves are used for isolation and regulation of flow within the blast furnace system. They can withstand high temperatures and pressures typical in blast furnace operations.
3. Butterfly Valve: Butterfly valves are used for controlling and throttling the flow of gases and liquids within the blast furnace system. They offer quick operation and tight shut-off.
4. Check Valve: Check valves prevent backflow of gases or liquids in the blast furnace system, ensuring that flow is unidirectional and preventing damage to equipment.
5. Pressure Relief Valve: Pressure relief valves protect the blast furnace system from overpressure by automatically releasing excess pressure to maintain safe operating conditions.
6. Control Valve: Control valves regulate the flow, pressure, temperature, or level of gases and liquids within the blast furnace system based on signals from a control system.
7. Safety Valve: Safety valves provide protection by automatically relieving pressure in case of overpressure conditions, safeguarding against potential equipment damage or failure.
8. Isolation Valve: Isolation valves are used to isolate sections of the blast furnace system for maintenance, repair, or emergency shutdown purposes.
9. Diaphragm Valve: Resistant to abrasion and suitable for controlling abrasive materials like cement slurry or powders. They are used in pneumatic conveying systems and for controlling process fluids.
10. Knife Gate Valve: Designed for handling abrasive materials like cement clinker or powders. They provide a tight shut-off and are used in material handling systems.
11. Pinch Valve: Used for controlling abrasive materials and slurries in cement plants, offering excellent sealing capabilities and resistance to wear.

Features and Benefits
High Durability

1. Material Selection: Evotech valves are constructed from high-grade materials such as stainless steel, cast iron, and specialty alloys, ensuring long service life even in corrosive and abrasive environments.
2. Coatings and Linings: Options for advanced coatings and linings to enhance resistance to wear, corrosion, and high temperatures.

Precision and Control

1. Actuation Options: Available with manual, pneumatic, hydraulic, and electric actuators to suit various operational needs.
2. Advanced Sealing Technology: Incorporates state-of-the-art sealing mechanisms to prevent leaks and ensure reliable operation under extreme conditions.

Customization

1. Tailored Solutions: Customizable designs to meet specific application requirements, including size, pressure ratings, and connection types.
2. Compliance with Standards: Adherence to international standards such as ANSI, API, and ISO, ensuring compatibility and reliability.

Applications in Blast Furnaces

1. Hot Blast Valves: Control the flow of hot air into the blast furnace, critical for maintaining the temperature and efficiency of the smelting process.
2. Bleeder Valves: Manage the release of excess pressure and gases, ensuring safety and operational stability.
3. Slag Valves: Handle the flow of molten slag, requiring materials and designs that withstand high temperatures and abrasive conditions.

Applications in Cement Plants

1. Kiln Valves: Regulate the flow of materials and gases in cement kilns, where temperatures can exceed 1400°C, necessitating valves that can endure such extreme conditions.
2. Raw Material Valves: Control the flow of raw materials such as limestone, clay, and sand into the grinding mills and preheaters.
3. Dust Control Valves: Manage the flow of dust and particulates in the dedusting systems, ensuring environmental compliance and operational efficiency.

Advantages of Evotech Valves

1. Reliability: Proven track record of performance in harsh industrial environments, reducing downtime and maintenance costs.
2. Efficiency: Enhanced flow control and precision, contributing to improved process efficiency and product quality.
3. Safety: Designed with safety in mind, including features like pressure relief and fail-safe actuation to protect both personnel and equipment.
4. Support and Service: Comprehensive support services, including installation, maintenance, and technical assistance, ensuring optimal performance and longevity of the valves.

Innovations and Technology

1. Smart Valves: Integration of smart technology for remote monitoring and control, providing real-time data on valve performance and condition.
2. Sustainability: Focus on developing eco-friendly solutions that minimize environmental impact and enhance energy efficiency.

Summary
Evotech’s large industrial valves are essential components in the operation of blast furnaces and cement plants, offering unmatched durability, precision, and reliability. With a wide range of valve types and customization options, Evotech ensures that each solution meets the specific demands of the application. Through advanced materials, innovative designs, and comprehensive support, Evotech helps industries achieve optimal performance, safety, and efficiency in their critical processes.