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The Coated Sand Regeneration Line is a set of efficient and environmentally friendly equipment designed to solve the problem of recycling and reusing waste coated sand (shell molding sand) in the foundry industry. It uses a series of physical and chemical processes to remove residual resin and other impurities from used sand, restoring its original properties for reuse in high-quality casting production.
This regeneration line integrates key processes such as crushing, screening, magnetic separation, thermal regeneration, cooling, and screening. With modular design, it can be customized according to customer requirements and integrated with intelligent control systems, dust removal systems, and exhaust gas purification devices to meet the needs of modern green foundries.
Product Features
Thermal regeneration temperature up to 600–800°C ensures over 95% binder removal rate, greatly improving the quality of regenerated sand.
Equipped with multi-stage heat recovery system to improve energy efficiency and reduce operating costs.
Adopts PLC + HMI central control system supporting temperature adjustment, fault alarm, remote monitoring, etc., ensuring easy operation.
Integrated VOC treatment system meets national emission standards with dust emissions ≤30mg/m³.
Multiple safety protections including emergency stop, gas detection, and over-temperature alarm ensure safe operation.
Main Process Flow
The used film-coated sand is first subjected to preliminary crushing by a crusher, and then large debris is removed through a vibrating screen.
The crushed old sand is then sent to the magnetic separator to remove iron filings and other metallic impurities, ensuring the quality of the subsequent regeneration process.
The sand material is introduced into the rotary kiln type or vertical roasting furnace, and is roasted at a high temperature of 600 to 800℃ to remove the resin film on the surface of the old sand.
The recycled sand material is cooled down to an appropriate temperature (generally ≤ 50℃) through the cooling drum and then undergoes size classification by the vibrating screen.
Qualified recycled sand is conveyed to the finished product storage area by pneumatic or belt systems, and can be automatically weighed and packaged or discharged in bulk.
The exhaust gas and dust generated during the production process are treated by the dust removal system and purification devices, and then discharged in accordance with standards.
Main Technical Specifications (Example)
Parameter
Specification
Capacity
1 to 20 tons per hour (depending on the configuration)
Calcining Temperature
600 to 800℃ (adjustable)
Temperature Control
Automatic PLC Control
Heat Source
Natural Gas / Diesel / Electric Heating
Exhaust Treatment
RTO / Activated Carbon / Scrubber
Power Consumption
150kW ~ 800kW (depending on the specific model)
Control Mode
Central Control (PLC + HMI)
Weight
15,000kg ~ 50,000kg
Emission Standard
China GB or EU EN Standards
Typical Applications
Resin Sand Regeneration Coated Sand Regeneration Supporting Equipment for Automated Casting Lines Centralized Sand Treatment System Green Foundry Environmental Workshop Central Regenerated Sand Supply Stations
Qingdao dingli machinery Co., Ltd
Qingdao Dingli Machinery Co., Ltd. is a company specializing in the production of casting machinery and equipment. Mainly produce equipment for casting clay sand, resin sand, coated sand, wet sand drying, lost foam, sodium silicate sand, etc. It is capable of undertaking various turnkey projects, including the design, manufacture, installation and commissioning of mechanical sand treatment. Our factory has strong technical force and advanced processing equipment. It has long-term and close technical cooperation relationships with many senior experts and scholars from domestic universities and research institutions. It can provide users with high-performance, reliable products and satisfactory services. Our company adheres to the principles of promoting enterprise development through science and technology, prioritizing quality, continuous improvement, and customer satisfaction. We are willing to sincerely cooperate with friends from all walks of life to achieve common prosperity. Our company mainly undertakes the following projects: Turnkey project of 20-180t/h mechanized clay sand processing production line and single-machine supporting equipment. Turnkey project of mechanized production line for casting of condensed resin sand with an annual output of 1,000 to 20,000 tons and single-machine supporting equipment. Turnkey project of complete sets of equipment for hot processing coated sand with an annual output of 3,000 to 10,000 tons and single-machine supporting equipment. Turnkey project of complete sets of equipment for regenerating hot-coated sand with an annual output of 3,000 to 7,000 tons and single-machine supporting equipment. Turnkey project of 5-15t/h sodium silicate mechanical production line and single-machine supporting equipment. Turnkey project of 5-30t/h three-stage sand-making and drying equipment and single-machine supporting equipment. 5-40t/h lost foam casting complete set equipment turnkey project and single machine supporting equipment All kinds of shot blasting cleaning equipment, lifting equipment, conveying equipment, cooling equipment, magnetic separation equipment, and environmental protection dust removal equipment. Welcome to contact us ~
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter
Year Established:
2013
Ecer Certification：
Verified Supplier
Qingdao dingli machinery Co., Ltd is located in the famous coastal city, the hometown of casting machine - Qingdao, since its establishment, we are always adhering to the traditional industries with the aim of combined closely with the foreign advanced technology, through the introduction, cooperati... Qingdao dingli machinery Co., Ltd is located in the famous coastal city, the hometown of casting machine - Qingdao, since its establishment, we are always adhering to the traditional industries with the aim of combined closely with the foreign advanced technology, through the introduction, cooperati...
