Product Parameters
| Model |
Efficiency of production:m³/H |
Roller width:mm |
Motor power:Kw |
| S954C |
20 |
400 |
0.75 |
| S955C |
30 |
500 |
1.1 |
| S957C |
40 |
650 |
1.5 |
Detailed Photos
Product Description
The equipment adopts permanent magnet-permanent magnet block as the magnetic source, the magnetic poles are arranged in a circle, made of special powder metallurgy product strontium ferrite. It is used to remove iron impurities such as iron beans, iron nails and casting splinters flying edges mixed in the old sand.
In the foundry sand regeneration process, the residual iron impurities (iron beans, nails, flash, etc.) will cause defects such as pores and slag inclusions in castings, which directly affect the production yield. This equipment uses an annular permanent magnetic pole array and strontium ferrite powder metallurgy materials to achieve efficient separation of ferromagnetic impurities in old sand. This article will deeply analyze how this equipment can reshape sand processing standards with a 99.5% iron removal rate and zero energy consumption from the dimensions of magnetic source technology, structural innovation, process benefits and industry applications.
1. Technical principles and core design breakthroughs
Based on the magnetic properties of strontium ferrite (SrFe12O19) and the requirements of foundry sand working conditions, the equipment achieves technical breakthroughs through annular magnetic pole array and gradient magnetic field design:
Innovation of permanent magnetic source:
The strontium ferrite magnet block (density ≥4.8g/cm³, remanence Br≥410mT) is prepared by wet pressing process, the magnetic energy product (BH) max≥3.5MGOe, the coercive force Hc≥320kA/m, ensuring the stability of the magnetic field (annual attenuation rate <0.1%);
The magnetic poles are arranged in concentric circles (pole spacing 4-8mm), forming a radial gradient magnetic field (magnetic field strength 0.4-1.2T), and the adsorption force of iron impurities is increased by 3 times compared with the traditional electromagnetic type.
Structural optimization design:
The modular assembly of annular magnetic poles supports customization of diameters from Φ600 to 2000mm, and is suitable for sand conveying systems with different bandwidths (500-2000mm);
The 304 stainless steel protective cover (IP66 grade) has a built-in guide plate, the sand flow speed is adjustable from 0.8 to 2.5m/s, and the impurity separation rate is >99.5%.
Intelligent control system:
The magnetic sensor monitors the magnetic field strength in real time, and the inverter is linked to adjust the conveyor belt speed (accuracy ±2%);
The Internet of Things module uploads equipment operation data (temperature, iron removal, etc.), and supports MES system integration.
2. Core advantages and industry value
Compared with electromagnetic iron removers, this equipment achieves multi-dimensional advantages with its permanent magnet zero energy consumption and strontium ferrite material characteristics:
High-efficiency iron removal performance:
It can capture the smallest iron impurity particle size of 0.2mm, the iron bean (Φ1-20mm) removal rate is >99.8%, and the micro-iron powder (50-200μm) removal rate is >95%;
Sand processing capacity is 10-80t/h, and the iron content of old sand is reduced from 0.5-5% to <0.02%.
Energy saving and environmental protection:
Permanent magnet drive does not require an excitation power supply, and the power consumption per ton of sand processing is 0, saving more than 200,000 yuan in electricity bills annually (based on 10t/h production capacity);
The recyclability of strontium ferrite materials is ≥90%, and the carbon emissions of the equipment life cycle are reduced by 60% compared with rare earth magnets.
Durable and low maintenance:
High temperature resistant design (working temperature ≤180ºC), high temperature attenuation rate of magnetic properties <1%/100ºC;
Self-cleaning scraper (tungsten carbide coating) and quick-release magnetic module, maintenance time <1 hour/year.
3. Integrated application of the whole process of foundry sand treatment
Old sand regeneration system:
Linked with vibrating screen and sand cooler, an integrated production line of "screening-iron removal-regeneration" is constructed, and the reuse rate of old sand is increased to 95%;
Eliminate subcutaneous pores in castings caused by iron impurities, and the surface roughness is optimized from Ra12.5μm to Ra6.3μm.
Multi-process adaptation:
Resin sand treatment: corrosion-resistant magnetic pole protective layer avoids resin acid corrosion, and the stripping rate fluctuates <0.3%;
Water glass sand regeneration: magnetic field distribution optimization prevents micro powder agglomeration, and the roundness of sand particles is ≥0.85.
Economic benefit data (taking an enterprise with an annual output of 50,000 tons of castings as an example):
Cost savings: Reduce casting scrap losses by 5 million yuan per year and save 2 million yuan in new sand procurement costs;
Energy efficiency benefits: Zero power consumption design reduces carbon emissions by 150 tons per year, meeting ESG compliance requirements.
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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