02 / Applications

Pulp and Paper

Redefining Severe-Service Reliability in Modern Pulp & Paper Mill Operations.

Modern pulping and papervaking processes demand flow control equipment that can endure extreme chemical corrosion, high temperatures, and severe slurry abrasions. Vantimond seamlessly integrates premium hardware—featuring 100% traceable steel melt, Chesterton® sealing systems, Daikin®/Chemours® fluoropolymers, and ISO 12944 coatings—with Haniwis, our proprietary AI-powered edge computing platform. We deliver smart, integrated flow transmission and dosing solutions, fully backed by our unprecedented 3-year warranty.

SECTION 2

WORKSHOP APPLICATIONS & CONFIGURATIONS

ClO2 Generation & Bleaching Workshop

Process Overview

Chlorine dioxide (ClO2) is the standard for Elemental Chlorine-Free (ECF) bleaching. It is highly oxidative and aggressively corrosive, representing the highest maintenance cost sector in the mill.

Process Conditions

Medium: ClO2 solution, Sulfuric Acid (H2SO4), Sodium Chlorate (NaClO3).
Temperature: 40°C to 90°C.
Pressure: PN10 / PN16 (Class 150).

Vantimond Selection & Defense

Fluoropolymer-Lined Ball & Butterfly Valves. Powered by pure, virgin Daikin®/Chemours® PFA/PTFE resins to eliminate liners permutation. Combined with Chesterton® low-emission packing (ISO 15848-1 certified) to prevent hazardous ClO2 gas leakage. For corrosive liquid pumping, our high-end Titanium Pumps (Grade 5/7) guarantee a lifespan 3 times longer than traditional alloys.

Chemical & Mechanical Pulping Workshop

Process Overview

During the cooking and digesting stage, high-temperature, high-concentration alkaline liquors mixed with lignin and wood fiber solid particles create a brutal environment of simultaneous corrosion and severe mechanical erosion.

Process Conditions

Medium: NaOH (Caustic Soda), High-solid Black Liquor, White Liquor, Pulp Slurry.
Temperature: 120°C to 180°C.
Pressure: Class 150 / Class 300 (PN25 - PN40).

Vantimond Selection & Defense

Metal-Seated Stainless Steel Ball Valves & Heavy-Duty Knife Gate Valves. Manufactured using in-house foundry steel (SS316L / Duplex 2205) for uniform grain integrity. Equipped with specialized hardened shearing seats to effortlessly cut through wood fibers and prevent valve jamming.

Chemical Recovery Workshop

Process Overview

Evaporating and concentrating black liquor involves managing highly viscous, scaling-prone fluids combined with sodium sulfide, requiring maximum flow-path smoothness.

Process Conditions

Medium: Concentrated Black Liquor (65%-75% solids), Green Liquor, Smelt.
Temperature: 80°C to 140°C.
Pressure: PN16 / PN25.

Vantimond Selection & Defense

Full-Bore Stainless Steel Valves & V-Port Lined Control Valves to ensure dead-zone-free flow and prevent liquor crystallization. All valve exteriors are finished with ISO 12944 heavy-duty anti-corrosion coatings to resist the corrosive high-temperature steam environment of the recovery area.

H2O2 Bleaching & Chemical Preparation

Process Overview

Hydrogen peroxide (H2O2) decomposes violently when catalyzed by trace metal ions, leading to catastrophic overpressure. Material purity, anti-static safety, and chemical inertness are non-negotiable.

Process Conditions

Medium: H2O2 (27.5% - 50%), Chemical Stabilizers.
Temperature: Ambient to 60°C.
Pressure: PN10.

Vantimond Selection & Defense

High-Purity Corrosion-Resistant Plastic Valves (PVDF / PPH). Manufactured from medical-grade virgin resins with ultra-smooth inner walls to eliminate chemical reaction risks.

Industrial Wastewater Treatment Plant (WWTP)

Process Overview

Paper mill effluent contains complex COD, BOD, suspended solids, and pH neutralizing agents, demanding massive chemical usage and incurring peak plant operating costs.

Process Conditions

Medium: Flocculants (PAM/PAC), Acid/Alkali Neutralizers, Defoamers, Mixed Effluent.
Temperature: Ambient.
Pressure: PN6 / PN10.

Vantimond 🚀 Haniwis Full-Stack Core Solution

Traditional manual sampling leading to either chemical under-dosing (environmental fines) or over-dosing (hardware corrosion and wasted capital). The Haniwis AI-Powered Autonomous Dosing System utilizes predictive edge computing to analyze live pH, flow rate, and turbidity. It dynamically controls Vantimond stainless steel pumps and pneumatic lined valves to reduce chemical waste by 30%, enable automated smart plant management, and actively secure the hardware's 3-year operational warranty.