Product Parameters
| Model |
Efficiency of production:m³/H |
Turning radius:mm |
Motor power:Kw |
Motor speed: R/min |
Fan power:Kw |
Air volume:m³/H |
| S8340 |
40 |
700 |
18.5 |
970 |
7.5 |
5730 |
| S8380 |
80 |
800 |
30 |
980 |
15 |
10850 |
| S83120 |
120 |
900 |
45 |
980 |
15 |
12780 |
| S83160 |
160 |
1150 |
75 |
1490 |
22 |
17463 |
Detailed Photos
Product Description
This machine is mainly used for the cooling of old green sand. The sufficient movement makes the temperature, humidity and composition of the old sand uniform. The machine has compact structure, stable movement, low energy consumption and good cooling effect. The high pressure fan makes the old sand in the boiling state to achieve the best cooling effect. The opening of unloading door can be adjusted to control the amount of material in salt. The machine and the old sand automatic temperature and humidification system and blower, induced fan, water system can constitute a complete and ideal old sand cooling unit.
According to the different installation position, the machine can be made into two ways of discharging materials: straight line type and vertical type. Both left and right unloading directions should be used when ordering.
In the foundry workshop old sand regeneration process, the cooling uniformity and efficiency of high-temperature wet sand (temperature 80-150ºC, water content 3-8%) directly affect the reuse rate of molding sand and the quality of castings. The double-disc stirring cooler provides an efficient, energy-saving and customizable technical solution for the old sand cooling process through boiling heat exchange and multi-parameter precise control technology. This article will deeply analyze how this equipment reshapes the energy efficiency standard of the sand processing process from the dimensions of thermodynamic principles, process adaptability, intelligent control system and multi-industry applications.
1. Technical principle and core component design
Based on the physical properties of old sand particles (particle size 0.15-1.2mm), the equipment achieves technological breakthroughs through two core technologies: fluidized cooling and dynamic homogenization:
Boiling state heat exchange system:
High-pressure centrifugal fan (air volume 8000-25000m³/h) blows the sand layer to a suspended state (boiling height 300-600mm), increasing the contact area between sand particles and cold air by 5 times, and the cooling efficiency reaches 30-80t/h, which is 40% energy-saving compared with traditional vibrating cooling beds.
Stepped air distribution plate: porous ceramic hood (porosity 35%) cooperates with guide vanes to ensure uniform airflow distribution (speed deviation <5%) and avoid local overheating or agglomeration.
Coordinated control of temperature and humidity:
Dual-fluid nozzle system: Through the precise ratio of compressed air (0.6MPa) and atomized water (particle size 10-50μm), the humidity of the old sand is controlled at 2.5±0.3%, and the temperature is reduced to ≤35ºC.
Infrared thermal imager: Real-time monitoring of the temperature field of the sand layer (accuracy ±1ºC), linkage adjustment of the fan speed and water spray volume, and elimination of cooling dead corners.
Modular structural design:
Linear/vertical dual mode:
Linear type (L series): suitable for sand processing lines with ample ground space, with a maximum processing capacity of 100t/h;
Vertical type (V series): adopts a tower layout (occupying ≤8), suitable for compact production lines with workshop height >8m.
Two-way unloading door: The opening of the pneumatic gate valve is adjustable (0-100%), the unloading accuracy is ±2%, and the left/right discharge direction can be customized.
2. Full-process integrated solution for foundry sand treatment
The equipment can be deeply integrated into the sand-sanding-screening-cooling-regeneration process chain to build an intelligent cooling unit:
Pretreatment of high-temperature old sand:
Linked with the vibrating conveyor, it can achieve the initial cooling of 600ºC red sand (to 150-200ºC) to avoid high-temperature deformation of the fluidized bed.
The magnetic separation module (magnetic induction intensity ≥1200Gs) removes iron bean impurities and protects the air distribution plate from impact wear.
Closed-loop water circulation system:
Wastewater is reused after being treated by a cyclone separator (removal rate > 95%) and a plate heat exchanger (temperature difference ≤5ºC), with a water saving rate of 70%.
Intelligent dust removal system:
The top is integrated with a pulse bag dust collector (filtration efficiency 99.9%), the emission concentration is <10mg/m³, and the noise in the working area is ≤75dB(A).
3. Comparison of core advantages and economic benefits
Compared with traditional cooling equipment, this machine achieves a leap in efficiency through energy recovery and digital twin control:
Energy consumption optimization:
The heat pipe waste heat recovery device can convert exhaust gas heat (80-120ºC) into hot water (50-70ºC), saving more than 800,000 yuan in steam costs per year (calculated based on a processing capacity of 50t/h).
The combination of variable frequency fan + permanent magnet motor, the power consumption per ton of sand is ≤1.2kW·h, which is 35% lower than similar equipment.
Quality improvement data:
The fluctuation of the compaction rate of the molding sand has been reduced from ±2.5% to ±0.8%, and the porosity defect rate of the casting has been reduced by 75%;
The reuse rate of old sand has been increased to 90%, and the cost of replenishing new sand has been reduced by 50%.
Maintenance convenience:
Quick-detachable hood design (replacing a single hood takes less than 3 minutes);
The observation window and maintenance platform meet OSHA standards and support online maintenance.
Certifications
Factory Panorama
Factory Address
QINGDAO SANZHUJI
Specializing in the production of sand casting machinery, including green sand casting production line, furan resin sand casting production line, lost foam casting production line, coated sand steel sand buried casting production line, the company has a history of 14 years since its establishment.
Contact Us
Address:North of G204 National Road, Poli Town, West Coast New Area, Qingdao, China
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