≥95% Ultra-high Hardness Al₂O₃ Ceramic Spiral Nozzle for Waste Gas Treatment Idustrial

≥95% Ultra-high Hardness Al₂O₃ Ceramic Spiral Nozzle for Waste Gas Treatment Idustrial

Product Description

This Al₂O₃ Ceramic Spiral Nozzle boasts a Mohs hardness of 9, offering superior resistance to erosion from fluid-borne particulate matter. Chemically stable and inert, it withstands corrosion from high-temperature sulfur-laden flue gases and concentrated acids or alkalis; it supports continuous operation at temperatures up to 950°C and resists cracking under thermal cycling conditions. The large-bore, integrated spiral flow path inherently prevents clogging, while the smooth, dense ceramic surface resists scale buildup over long-term use, ensuring consistent spray flow rates and angles year after year. In applications such as thermal power desulfurization, waste incineration flue gas treatment, and highly corrosive chemical spraying, its service life exceeds that of stainless steel nozzles by more than 30 times, significantly reducing equipment downtime for maintenance, spare part procurement, and pipeline operational costs. We offer customization for thread specifications, spray angles, and flow rates. Every nozzle undergoes rigorous reliability testing—including high-pressure spraying and thermal shock tests—before leaving the factory. We provide one-stop ceramic spray solutions to global clients across the environmental protection, metallurgy, new energy, and chemical industries; factory-direct quotes are available based on your specific operating parameters.

Key Material Advantages

High-purity alumina ceramics (Al₂O₃ ≥ 95%)

Working Principle of Spiral Structure

The alumina ceramic spiral nozzle features a non-clogging spiral channel design:

1. Liquid entry: the liquid to be sprayed enters the nozzle chamber tangentially.
2. Spiral acceleration: the liquid advances while rotating at high speed along a precision-machined spiral flow path.
3. Centrifugal atomization: at the spiral outlet, centrifugal force causes the liquid to form a conical spray pattern.
4. Uniform spraying: it produces a hollow or solid cone spray with a wide coverage area and uniform droplet size.

Structural Features

1. No internal vanes: unobstructed flow path, resistant to clogging; capable of handling media containing impurities or high-viscosity fluids
2. Self-cleaning effect: spiral flow path generates turbulence, reducing scaling and sediment buildup
3. Wide coverage: a single nozzle achieves uniform coverage over a large area

Product Advantages

1. Exceptionally Long Service Life

    Alumina ceramics possess extremely high hardness; their wear resistance is 5–10 times that of cemented carbide and more than 20 times that of stainless steel. In environments involving the spraying of slurries containing solid particles, their service life can range from several times to dozens of times that of metal nozzles, significantly reducing replacement frequency and maintenance costs.

2.Exceptional Corrosion Resistance

    Alumina ceramics exhibit excellent chemical stability, withstanding corrosion from strong acids (except hydrofluoric acid), strong alkalis, and most organic solvents; they are particularly well-suited for highly corrosive environments such as desulfurization, denitrification, and chemical reaction processes.

3.High-Efficiency Atomization Performance

    A spiral structure combined with a precision-machined ceramic flow channel ensures the production of fine, uniform atomized droplets (with diameters ranging from 50 to 200 μm), thereby improving gas-liquid contact efficiency and enhancing reaction performance.

4.High-Temperature Stability

    Under operating conditions such as high-temperature flue gas cooling and boiler desulfurization, alumina ceramics maintain stable physicochemical properties, resisting deformation, softening, and oxidation.

5.Precision and Consistency

    Utilizing isostatic pressing and high-temperature sintering processes, combined with precision CNC machining, ensures a high degree of consistency in flow rate, spray angle, and atomization performance across every nozzle.

Typical Application Areas

1.Flue Gas Desulfurization and Denitrification (FGD/DeNOx)

   limestone/lime slurry injection

   ammonia/urea solution atomization

   flue gas rapid cooling/quenching

2.Industrial Cooling and Cleaning

   high-temperature flue gas cooling

   high-Pressure equipment surface cleaning

   casting and molding cooling

3.Chemical Industry and Environmental Protection

   waste gas scrubber spraying

   atomization of chemical reactor feed

   dust suppression and dust control

4.Metallurgy and Power Generation

   blast furnace gas cleaning

   electrostatic precipitator humidification

   boiler ash and slag removal

5.Other Specialized Applications

   sanitary-grade spraying for the food and pharmaceutical industries

   precision cleaning in the electronics industry

   firefighting water mist systems

Technical Specifications

Customized Services: We provide solutions featuring non-standard dimensions, special angles, composite materials, and modular nozzle designs tailored to specific customer operating conditions.

Selection and Usage Recommendations

1. Media Characteristics: verify the liquid composition, temperature, solids content, and corrosiveness to select the appropriate purity grade of alumina material.
2. Process Parameters: define the required flow rate, pressure, coverage area, and droplet size specifications.
3. Installation Environment: consider piping connection methods, space constraints, and vibration factors.
4. Maintenance: regular cleaning and inspection are recommended to prevent brittle damage to the ceramic caused by impacts from hard objects.

Our workshop

Why choose us?

1.Customized R&D, rather than standard product adaptation

2.Deep control of materials science：Material Selection Based on Needs，Microstructure Optimization，Batch Consistency

3.Precision machining capability：Flatness can reach 0.001mm, parallelism 0.002mm, and roughness Ra 0.1μm.

FAQ

Q1: What is the minimum order quantity? Is it in stock or made-to-order?What is the lead time？

The minimum order quantity is 100 pieces. Most of our products are custom-made; the lead time for samples is 3–5 days, while the lead time for bulk orders depends on the order quantity.

Q2: Who is responsible for shipping damage? Do you offer replacements for items broken upon arrival?

We take responsibility for damage during transit; if items arrive broken, we will either issue a refund or send replacements.

Q3: What is the warranty period? How are cases of excessive wear or breakage handled during the warranty period?

The warranty period is 12 to 24 months, calculated from the date of successful delivery inspection or the date the product is put into operation. In the event of excessive wear or breakage during the warranty period, we will provide a new alumina ceramic nozzle—matching the original order specifications—free of charge.

Q4: Can you manufacture non-standard sizes based on our drawings?

Yes,we can.

Q5: What is the unit price? How much cheaper is it than silicon carbide? How much more expensive than 316L?

The price of alumina ceramic nozzles is typically RMB 10–30 per unit. They are 50%–70% cheaper than silicon carbide and offer a longer service life than 316L stainless steel, making them a cost-effective choice for most applications.