Compound Screen

Product Introduction

The Compound Screen is a high-efficiency compound dual-stage vibrating screening device specifically developed for screening materials containing large items and wet-sticky materials. It specializes in medium-and-below particle size material sorting, capable of handling materials within 250mm, widely suitable for screening scenarios involving organic materials, engineering muck, sand and gravel aggregates, and municipal solid waste. It is a core screening device for the solid waste treatment, sand and gravel processing, and material grading industries.

This equipment adopts an inclined installation structure, relying on a flywheel exciter rotating to generate centrifugal force, driving the screen body in stable reciprocating vibration. The upper layer features welded three-dimensional grid screen panels with short bar strips at the end of each panel. The grid screen panels are arranged horizontally in rows with a longitudinal stepped layout. During equipment operation, materials tumble and loosen vigorously in the stepped screen, achieving efficient separation. The welded screen mesh can withstand severe impact from materials below 250mm. Materials larger than the upper layer are discharged from the outlet, while materials smaller than the upper layer fall onto the lower flexible screen for secondary screening. The lower layer is equipped with proprietary flexible screen plate structure, which continuously relaxes and tightens with inertial force during operation, creating a dynamic screening effect. Materials with particle sizes smaller than the screen hole specifications quickly penetrate the screen panels for screening discharge, while larger particle materials are smoothly conveyed with the screen body vibration to the discharge port for removal. This thoroughly solves industry pain points such as material caking, impact damage to screen surfaces causing short life, screen hole clogging, and incomplete screening in traditional screening equipment.

The equipment features an operator-friendly structure. Modular upper screen panels support quick replacement and maintenance, while the lower layer uses a clamp-type, boltless screen-panel installation system. An external dust cover, rubber damping components, and an electrical overload protection system support efficient, stable, and safe operation. Low noise, high impact resistance, a low failure rate, and straightforward maintenance make it suitable for long-term continuous industrial use across a broad range of applications.

Key Advantages

The upper layer features welded three-dimensional grid arc screen panels with stepped arrangement that increases tumbling frequency while providing better impact resistance and allowing flexible materials to pass through, reducing snagging. The lower layer features customized flexible screen plates that continuously dynamically relax and tighten during operation, effectively breaking up caked materials and eliminating screen hole clogging and material retention issues. Screen hole sizes can be customized according to customer material specifications and screening requirements, adapting to various material grading operations, with screening precision and operational efficiency far exceeding traditional screening equipment.

The exciter adopts a modular design, allowing flexible adjustment of equipment vibration amplitude by adding or removing counterweights, adapting to materials of different hardness, moisture, elasticity, and friction. Combined with integrated rubber damping blocks, it efficiently absorbs equipment operation vibration, significantly reducing operating noise. The equipment base has small vibration amplitude, smooth overall operation, and low wear rates.

The upper layer uses modular bolt-connected fixed screen panels, allowing quick disassembly and replacement using common tools. The lower layer uses a boltless clamp-type screen panel fixing structure, allowing quick lower screen panel disassembly and replacement without specialized tools. The equipment lower screen mesh inspection area has ample operating space, with simple and convenient procedures, effectively shortening equipment downtime for maintenance and reducing manual maintenance difficulty and operational costs.

Equipped with a professional electrical overload protection system, the equipment automatically alarms and shuts down when faults such as overload operation or current anomalies occur, preventing equipment overload damage risks. The three-dimensional welded screen mesh maintains stability under prolonged severe impact, and the flexible screen plates feature excellent wear resistance, corrosion resistance, and impact resistance, adapting to complex working conditions. The equipment overall has strong durability and long service life.

• Sturdy screen mesh, efficient screening without clogging, integrated dual-stage screening for higher efficiency

• Modular and adjustable, stable and low-noise operation

• Convenient disassembly and assembly, extremely low maintenance costs

• Intelligent protection, long equipment service life

Technical Specifications

Lower Layer 5-40

Application Scenarios

• Solid Waste Treatment Industry: Suitable for screening and grading of municipal solid waste, aged waste, industrial waste, and recyclable waste, supporting solid waste resource recovery and utilization.

• Infrastructure Earthwork Industry: Applicable for fine screening and impurity separation of construction and decoration waste, engineering muck, backfill earth, and crushed sand and gravel.

• Renewable Resource Industry: Used for size grading of various recycled metal and other recovery materials, meeting the needs of fine sorting production.

Application Cases

• Municipal Solid Waste Treatment Project: Multiple Compound Screens deployed in municipal solid waste and aged waste sorting production lines, performing precise material screening to effectively separate organic and inorganic materials. The equipment can operate continuously and stably without clogging, with few failures, significantly improving waste sorting efficiency, supporting urban solid waste harmless and resource-based treatment.

• Sand and Gravel Recycling Project: Applied in construction waste crushing and recycled sand and gravel screening scenarios, grading recycled aggregates within 250mm, precisely separating coarse and fine aggregates. The equipment operates with low noise and stability, convenient maintenance, effectively reducing production line operating costs, and significantly improving finished aggregate quality.