Baghouse Lime Pre-Coating Powder
Baghouse Lime Pre-Coating Powder
Baghouse Calcium Hydroxide Pre-Coating Powder Oveview
Baghouse Lime/Calcium Hydroxide Pre-Coating Powder is a finely milled Ca(OH)₂ precoat material applied to filter bags before system startup to create a uniform, porous protective layer. It enhances dust release, prevents blinding, stabilizes differential pressure, and extends filter bag service life.
Key Selection Criteria
- Particle size: 99% < 0.09 mm for uniform coating
- Chemistry: ≥94–96% Ca(OH)₂ purity
- Dust characteristics: Sticky, hygroscopic, chlorinated, corrosive, or ultrafine dust
- Air-to-cloth ratio: Works across low- to high-A:C designs
- Service life: Reduces chemical attack and abrasion for longer bag lifespan
- Industries: Cement, power generation, steel, biomass, waste-to-energy
Best-use scenarios include:
- Cement, steel, and biomass boilers
- Power plant ESP/Baghouse hybrid systems
- High-moisture, sticky, fine-particulate environments
- Systems requiring low initial ΔP and controlled dust cake formation
Omela Filtrations delivers stable, high-reactivity lime pre-coating powders engineered for consistent layer formation, reduced emissions, and maximized filter bag longevity.
Calcium Hydroxide Technical Data Sheet (Quality Report)
| Product Name | Calcium hydroxide | ||
| Appearance | White powder | ||
| Ingredient | Calcium hydroxide (CAS: 1305-62-0): > 98% | ||
| Inspection Item | Result | Require | Standard |
|---|---|---|---|
| Appearance | White powder | White powder | |
| Calcium hydroxide content, % | 98.5 | ≥98 | HG/T 4120-2009 |
| Carbonate content, % | 0.3 | 1 | |
| Loss of weight on heating, % | 0.21 | 0.5 | |
| Acid-insoluble substances, % | 0.05 | 0.1 | |
| Magnesium content, % | 0.43 | 2 | |
| Iron content, % | 0.02 | 0.05 | |
| Lead content, % | < 0.0001 | 0.002 | |
| Specific surface, m²/g | 25 | 19 | |
| Screening test: 0.045mm, % | 0.88 | ≤2 | |
| Screening test: 0.125mm, % | 0 | 0 | |
| Conclusion | PASS | ||
INDUSTRIAL
APPLICATIONS
Engineered to protect filter bags during system startup and early operation, Baghouse Lime/Calcium Hydroxide Pre-Coating Powder creates a stable, porous insulation layer that prevents blinding, reduces chemical attack, and ensures low initial differential pressure. Ideal for high-dust, corrosive, and high-moisture environments requiring consistent filtration stability.
Cement, Lime & High-Dust Baghouses
Cement plants, lime kilns, and clinker lines generate extremely fine, sticky, and alkaline dust that easily blinds filter bags during startup.This results in longer bag life and more predictable system performance, especially in preheater towers and high-dust processing zones.
Steel Plants, Metallurgy & Foundry Exhaust Systems
Steel and metallurgical exhaust contains corrosive fumes, acidic gases, and ultrafine particulate, which can aggressively attack filter bag fibers. Ideal for electric arc furnaces (EAF), sinter plants, foundry melting, and secondary metallurgy filtration.
Waste-Incineration, Power Generation & Chemical Processing
Incineration and chemical plants face extreme pH variations, high moisture, and corrosive acid gases (HCl, SO₂, HF). Commonly used in municipal waste incineration, biomass boilers, coal-fired units, and chemical-reactor dust collection.
Why Choose Omela Filtration?
Choosing the right filtration supplier affects everything from system stability to maintenance downtime. At Omela Filtration, we combine reliable materials, controlled production, and years of industry experience to support dust and liquid filtration needs across different plants and applications.
We use consistent-grade filter media, sewing thread and metals sourced from qualified suppliers. Each batch is checked for weight, thickness, air permeability and tensile strength to keep performance steady across shipments.
Our facility is equipped with modern sewing lines, hot-welding machines and automated inspection tools. This keeps production efficient and helps us meet tight delivery schedules, even on custom orders.
Our engineers and technicians have long experience with dust collectors, liquid systems and industry-specific conditions. They help you match materials to temperature, chemistry and air-to-cloth ratios to avoid unnecessary failures.
From sampling to documentation and shipping, our team responds quickly and keeps information clear. Customers in cement, asphalt, power and water-treatment plants rely on our service to resolve problems without delay.
From the first technical discussion to installation and long-term maintenance, our team stays involved at every stage. We analyze your operating conditions, adjust product designs when needed, and ensure the final filtration setup works reliably in real plant environments. After delivery, our service team continues to provide guidance and troubleshooting support, helping you keep your system stable and downtime low.
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Backed by 20+ years of experience and 1000+ clients, Omela Filtration provides dependable solutions for both industrial liquid filtration and dust-collection systems—ensuring stable performance, efficiency, and long-term reliability.