VSI sand making machine
Introduction:VSI sand making machine is widely used for fine crusher and coarse grinding of metal and non metal ores, cement, refractory material, grinding material, glass raw material, building aggregates, artificial sand and all kinds of metallurgical slags. It is especially suitable for medium hardness materials, high hardness materials and corrosion resistance materials, such as carborundum, emery, magnesia etc.
VSI Sand making machine is the latest product of authoritative experts from both home and abroad,connecting with quarry,mining present working conditions.
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What is a sand making machine?
Sand Making Machine is a mechanical equipment that crushes and shapes large stones into building sand (artificial sand). It is widely used in mining, building materials, transportation, water conservancy and other fields, and is the core equipment of machine-made sand production lines.
Core functions:
Crush hard rocks (such as granite, basalt, river pebbles) or construction waste into 0-5mm sand particles.
By optimizing the shape of sand particles (multi-angle, rough surface), improve the strength of concrete and other properties.
Common types:
Impact sand making machine (vertical shaft type): Use high-speed rotating impeller to project materials for impact and crushing, and the finished product has a good particle shape.
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Working principle of sand making machine (taking impact type as an example)
Workflow:
Feeding: Stone is evenly fed into the top of the sand making machine through the feeder.
High-speed ejection: The impeller speed reaches 60-100m/s, and the material is thrown out and hits the surrounding guard plate or other materials.
Multiple crushing: The material repeatedly collides and rubs in the crushing chamber, and gradually breaks into sand particles.
Screening and circulation: Qualified sand particles are discharged through the bottom screen, and large particles that do not meet the standards are returned for continued crushing (closed-loop circulation).
Key technical points:
Centrifugal impact crushing: Combines the "stone hitting stone" and "stone hitting iron" modes to reduce wear and improve efficiency.
Hydraulic cover opening device: Easy maintenance and reduced downtime.
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| Model | VSI-7611 | VSI-8518 | VSI-9526 | VSI-1140 | VSI-1145 | |
| Capacity (t/h) | Cascade and Center Feeding | 120-180 | 200-260 | 300-360 | 450-520 | 490-600 |
| Center Feeding | 60-90 | 100-130 | 150-190 | 225-260 | 250-310 | |
| Feeding Size (mm) | Soft Material | < 35 | < 40 | < 45 | < 50 | < 50 |
| Hard Material | < 30 | < 35 | < 40 | < 45 | < 45 | |
| Rotation Speed (r/min) | 1700-1890 | 1520-1690 | 1360-1510 | 1180-1310 | 1180-1280 | |
| Power of the Double Motors (kw) | 110-150 | 180-220 | 264-320 | 400-440 | 440-520 | |
| Overall dimension L*W*H (mm) | 3700*2150*2100 | 4140*2280*2425 | 4560*2447*2278 | 5000*2700*3300 | 5100*2790*3320 | |
| Power Source | 380v:50hz | |||||
| Vibrating Sensor | Inspection Scope:0.1-20mm/s, it can be adjusted continuously. | |||||
| Hydraulic Lubrication Station | Power of Double Oil Pump | 2x0.31kw | ||||
| Safety | Double oil pumps make sure supply of oil with; Stop automatically without oil flow or oil pressure; Water cooled; Heating start the motor in winter. | |||||
| Overall Dimension L*W*H (mm) | 820x520x1270 | |||||
| Power of Oil-Box Heater | 2kw | |||||
III. Application solutions of sand making machine
1. Applicable industries
Mining quarrying: Processing raw ore into construction sand to replace natural sand resources.
Construction waste recycling: Crushing waste materials such as concrete and bricks to make recycled aggregates.
Water conservancy projects: Produce high-standard concrete aggregates for dam and bridge construction.
2. Typical production line configuration
Raw materials: granite, pebbles, limestone, etc. (hardness ≤ 250MPa).
Equipment combination:
Vibrating feeder → jaw crusher (coarse crushing) → sand making machine (fine crushing) → vibrating screen → sand washing machine → finished sand.
Intelligent control: adjust the feed speed and crushing intensity through the PLC system to optimize the output and energy consumption.
3. Environmental protection and efficiency improvement plan
Dust control: configure pulse dust collector and sealed conveyor belt to reduce operation pollution.
Energy-saving design: use variable frequency motor to automatically adjust the power according to the load, saving 15%-30% of electricity.
Modular structure: easy to transport and on-site assembly, shorten the construction period.
IV. Precautions
Raw material selection: avoid materials with too high mud content or high humidity to prevent clogging of the screen.
Regular maintenance: check the wear of wear-resistant parts (such as throwing head and peripheral guard plate) and replace them in time.
Finished product optimization: By adjusting the impeller speed and screen aperture, the fineness modulus of the sand can be controlled (2.2-3.0 is preferred).
Case reference: After a granite sand production line is equipped with an impact sand making machine, the finished sand particles are cubic in shape, with a crushing value of ≤8%, meeting the national Class I sand standard and used for high-speed rail concrete pouring.
Through reasonable selection and scientific management, sand making machines can efficiently replace natural sand and help the development of green buildings.
