High‑Efficiency Zhongyu Dingli Roller Screen for Stone & Aggregate Screening

5 month ago

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Henan Zhongyu Dingli Intelligent Equipment Co., Ltd.

9 month

Product details

Roller Screen Feeder for Screening Soil Rock Mixtures

Roller Screen Equipment Overview

The high-efficiency roller screen feeder is a heavy-duty machine specifically designed for screening and feeding coarse materials with large particle sizes. With a capacity of 400–3,000 tons per hour, it is widely used for coarse screening operations involving soil-rock mixtures, construction waste, construction debris, and mixed ore from mines. The screen plates are precision-manufactured from high-quality alloy steel, offering outstanding wear resistance and a service life far exceeding that of comparable products. The variable-frequency motor control system adjusts operating speed in real-time based on feed conditions, ensuring screening operations always operate under optimal conditions. It provides excellent permeability for wet, sticky materials with high moisture content and efficiently removes impurities from materials with high soil content without clogging the screen openings, ensuring continuous and stable production line operation. The machine features a simple, compact structure, operates smoothly, and produces low noise; It supports both horizontal and inclined installation, flexibly adapting to various production line layouts, and features quick on-site commissioning. It is a highly efficient and reliable choice for coarse material screening processes in the mining, construction waste processing, and infrastructure engineering sectors.

Roller Screen Equipment Highlights

Strong Permeability for Wet and Sticky Materials: Delivers excellent screening performance for wet, sticky materials with high moisture and soil content, preventing clogging and material buildup to ensure continuous production

Intelligent Variable-Frequency Speed Control: The motor’s variable-frequency control precisely matches feed rates to downstream equipment requirements, optimizing screening efficiency while saving energy and reducing consumption

Alloy Steel Wear-Resistant Screen Panels: Precision-machined high-quality alloy steel screen panels offer wear resistance far exceeding that of similar products, reducing the frequency of wear-part replacements and significantly lowering maintenance costs

Dual-Purpose Horizontal/Inclined Operation: The installation angle is flexibly adjustable, supporting both horizontal, steady feeding and inclined, rapid material conveyance, adapting to a variety of production line layouts

Low-noise, smooth operation: Simple structure and smooth operation ensure low on-site noise even during high-intensity operations, improving the working environment

High capacity and wide coverage: Single-unit capacity ranges from 400 to 3,000 tons per hour, meeting the needs of small-to-medium and ultra-large aggregate production lines, mines, and construction waste processing lines

Roller Screen Application Scenarios

Separation of soil-rock mixtures: Coarse screening to remove soil from large volumes of soil-rock mixtures in mining and infrastructure projects, improving subsequent crushing efficiency

Construction Waste Processing: Coarse separation and feeding of mixtures containing concrete blocks, brick debris, and soil, serving as pre-treatment for recycled aggregate crushing lines

Construction Debris Sorting: Coarse screening and grading of municipal construction and subway shield tunneling spoil to improve resource utilization rates

Mining Coarse Material Screening: Pre-screening and impurity removal of ore from metal mines (e.g., iron and copper) prior to crushing to reduce wear on the main equipment

Roller Screen Process Flow

Customized process for coarse screening and pre-treatment of construction waste and soil-rock mixtures:

Construction waste or soil-rock mixtures are directly dumped by a loader into the receiving hopper of the high-efficiency roller screen feeder. A variable-frequency motor automatically adjusts the roller shaft speed based on the feed rate. The material rolls and advances between the rollers; fine soil and small-particle impurities fall through the gaps between the rollers and are discharged via a dedicated conveyor belt, while the oversize material is uniformly and continuously fed into the subsequent jaw crusher (or DLKPC double-chamber hard rock crusher) for primary crushing. Screening and feeding are completed simultaneously, reducing wear and tear on the main crusher caused by processing soil-laden fine material. The alloy steel rollers uniformly convey the material; even wet, sticky material with high moisture content does not clog the gaps between the rollers, ensuring continuous and stable operation of the production line. The entire process integrates coarse screening, de-silting, and feeding into a single machine, significantly improving the processing efficiency and service life of the downstream primary crusher.

Roller Screen Services

Solution Design: Based on material type (soil-rock mixture/construction waste/excavated soil), moisture content, soil content, and production capacity requirements, we tailor the specifications and installation angle of the roller screen feeder to match upstream and downstream processes.

Equipment Manufacturing: The roller shaft assembly, alloy steel screen plates, variable frequency drive system, and frame structure are all manufactured in-house. The alloy composition of critical wear-resistant components is strictly controlled to ensure quality and longevity

Installation and Commissioning: Engineers are dispatched to the site to complete equipment positioning, variable frequency parameter tuning, and synchronization testing with the main crushing unit, ensuring uniform feeding and screening efficiency that meets standards.

Operation and Maintenance Management: We provide full-cycle O&M services, including wear alerts for rollers and screen plates, regular inspections and maintenance, pre-stocked spare parts, and rapid response to malfunctions, ensuring the continuous and efficient operation of the coarse material screening production line.

Roller Screen Project Case Study

Project Location: Construction Waste Recycling Line for the Kuala Lumpur Metro Project, Malaysia

Project Overview: The client was contracted to manage a construction waste recycling project for a local metro shield tunneling project. The waste featured high moisture content, strong粘性, and contained a large amount of concrete debris mixed with soil, with a daily processing capacity of approximately 12,000 tons. The existing fixed screen frequently suffered from clogged openings, and maintenance downtime was time-consuming, severely disrupting production schedules. One Zhongyu Dingli high-efficiency roller screen feeder was selected. Equipped with variable frequency speed control and alloy steel roller shafts, it maintains a stable throughput of 650 tons per hour, achieves a fine soil removal rate exceeding 85%, and uniformly feeds the oversize material to the subsequent jaw crusher.

Operational Results: Continuous screening of high-moisture, sticky excavated soil for 8 months without any screen clogging or downtime; The alloy steel roller shafts achieved a service life of 11 months, approximately three times longer than the original equipment; the variable frequency speed control automatically reduces speed to buffer against uneven feed rates, preventing overload of the main crusher; the replacement frequency of wear parts in the downstream main crusher decreased by approximately 35%; customer feedback: “The wet construction waste goes in without clogging, the output is uniform, the material fed to the crusher is much cleaner, and the number of shutdowns across the entire line has been reduced by more than half.”

Technical parameters:

Name	Data	Unit
Feed opening size	3080×2330	mm
Maximum feed size	≤400	mm
Processing capacity	~1000	t/h

Roller Screen FAQ

Q: How does the high-efficiency roller screen feeder prevent clogging and downtime when processing high-moisture, wet, and sticky construction waste?

A: The roller screen feeder operates on the principle of rolling shafts to advance material. Material continuously rolls forward between the shafts, with fine soil and moisture naturally falling through the gaps between the rollers. Heavy-duty vibrating screen This eliminates the problem of screen apertures becoming clogged by wet, sticky material, as seen in traditional vibrating screens. For the processing of construction waste with high moisture content and the screening of construction debris, the roller structure of this anti-clogging, wet-material-resistant screen is the most reliable solution, ensuring continuous and stable operation of the production line.

Q: How does the variable-frequency roller screen ensure uniform feeding during the screening of mixed soil and rock materials?

A: The variable-frequency motor control system adjusts the roller shaft speed in real-time based on the feed rate. Vibrating feeding and screening machine When the feed volume is high, it accelerates to prevent material buildup; when the feed volume is low, it decelerates to ensure uniform feeding. Throughout the process, it automatically synchronizes with the processing cycle of the downstream primary crusher. In the separation of soil-rock mixtures, uniform feeding directly impacts the stability of the primary crusher’s output and the even distribution of wear. The intelligent synchronization capability of the variable-frequency roller screen significantly enhances the overall line efficiency.

Q: How does the service life of the wear-resistant alloy screen plates on this roller screening feeder compare to similar products, and is daily maintenance complicated?

A: The screen plates on Zhongyu Dingli’s roller screening feeders are made of precision-machined high-quality alloy steel, offering a wear life 2–3 times longer than standard carbon steel plates, significantly reducing annual consumable costs. Construction waste screening equipment The simple design of the screen plates and roller shafts allows for inspection and replacement without the need for specialized technicians, and each plate replacement takes only a short time. The variable-frequency drive system requires only periodic checks of electrical parameters for daily maintenance, and the overall maintenance workload is far lower than that of comparable vibrating screen equipment.

Contact us immediately to receive a customized process solution and quote, ensuring your coarse material screening process runs efficiently and smoothly while significantly reducing operational and maintenance costs.