Waste Water Treatment Inclined Screen Solid-Liquid Separator QX-120T

Waste Water Treatment Inclined Screen Solid-Liquid Separator

The inclined screen solid-liquid separator is a specialized mechanical filtration device engineered for the primary separation of suspended solids from industrial and agricultural wastewater. By utilizing gravitational flow across a precision-engineered stainless steel wedge wire screen, this equipment effectively removes large particles, fibrous materials, and organic debris from fluid streams. This process significantly reduces the Chemical Oxygen Demand (COD) and Biochemical Oxygen Demand (BOD) load on downstream biological treatment systems.

Technical Principles and Operation

The system operates by directing raw effluent into an upper distribution tank, ensuring a uniform flow across the width of the inclined sieve plate. As the liquid descends, the kinetic energy combined with the specific angle of the screen allows liquid to pass through the apertures while solid particles are retained on the surface. These solids migrate downward via gravity to the discharge outlet, while the filtered filtrate is collected in the bottom reservoir for further processing or discharge.

Key Technical Specifications

Structural Features and Material Construction

• Wedge Wire Screen: Constructed from SUS304 or SUS316L stainless steel, providing resistance to corrosion and minimizing the risk of clogging through a V-shaped profile.
• Integrated Vibration Motor: Select models feature an adjustable vibration frequency to assist in the dewatering of high-viscosity manure or oily residues.
• Flow Distribution Buffer: Prevents turbulence and ensures a laminar flow to maximize the effective filtration area of the static screen separator.
• Sealed Enclosure: Designed to contain odors and prevent splashing, maintaining compliance with environmental health and safety (EHS) standards.

Industrial Applications

This wastewater pretreatment equipment is utilized across diverse sectors to manage slurry separation and fiber recovery:

• Aquaculture and Livestock: Removal of solids from pig, cattle, and chicken manure to facilitate biogas digester efficiency.
• Pulp and Paper Industry: Recovery of wood fibers and removal of inorganic fillers from white water loops.
• Food Processing: Separation of vegetable peels, grain husks, and slaughterhouse waste.
• Textile and Dyeing: Filtering of lint and fibrous debris to protect membrane bioreactors (MBR).

Frequently Asked Questions (FAQ)

How to determine the optimal screen slot size for specific industrial wastewater?

Selecting the correct screen aperture depends on the particle size distribution and the specific gravity of the suspended solids. For livestock manure separation, a slot size of 0.5mm to 1.0mm is typically standard. However, for pulp fiber recovery, finer apertures down to 0.25mm may be required. Yangzhou Qinxin Environmental Protection Technology Co., Ltd. provides technical consultation based on years of practical experience. As an AAA-level contract-oriented enterprise, we analyze your material characteristics to recommend the appropriate solid-liquid separation solution, drawing from our portfolio of patented technologies and ISO-certified management systems.

What are the maintenance requirements for a static inclined screen separator?

The primary maintenance involves regular inspection of the wedge wire surface for scaling or bio-fouling. Unlike moving-part heavy machinery, the inclined screen is valued for its low operational cost. Periodic high-pressure rinsing is recommended to maintain flux rates. For complex installations, Yangzhou Qinxin Environmental Protection Technology Co., Ltd. integrates these units with our PAM integrated dosing devices or stacked screw sludge dewatering machines to create automated systems. Our dedicated team supports international clients, particularly in Southeast Asian markets, ensuring that our exported sewage treatment equipment meets rigorous durability and occupational health standards.

Can this equipment handle wastewater with high oil and grease content?

While the inclined screen separator is highly efficient for solids, high concentrations of grease can cause blinding of the screen. In such cases, a heated spray cleaning system or chemical pretreatment is integrated. Yangzhou Qinxin Environmental Protection Technology Co., Ltd. specializes in multi-stage treatment configurations, serving the petrochemical and leather industries. Our manufacturing process, backed by quality and environmental management system certifications, ensures that each unit can be customized with specific surface coatings or vibration units to handle challenging industrial effluents effectively.