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  • sand recycling machien

Sand Precoated and Recycling production line

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sand recycling plant
sand precoated plant
waste sand recycling plant
sand recycling plant for waste sand

Precoated sand production line instruction

Main characteristics

  1. The quality of precoated sand is good.
  2. Coated uniformly
  3. The whole making process can be monitored so that to ensure the sand’s quality.
  4. Operating and maintenance easily
  5. Operating mode: automatic control+manual operating
  6. Adding original sand mode: bucket device adding sand automatically, quantificationally
  7. Heating mode: oil furnace heating; coal heating; electric heating; gas heating, firewood heating
  8. Temperature, time control: Automatic control digital display, can be adjusted
  9. The direction of coming out final sand: left or right direction

The whole process consists of following 7 sections

1. Original sand automatically quantificationally conveying system

2. Original sand heating system (inner loop indirect heat exchanger)

3. Heating mode: A. Fuel heating B.Electric heating C. Coal heating D. Gas heating

4. Sand mixing system: A. Air cooling, double water cooling system   

                                         B.  Blending structure, air cooling, double water cooling system

5. Crushing, sieving, cooling system of final sand

6. Automatic packing system of final sand

7. Microcomputer control system

8. Dust removing system

Waste sand recycling production line instruction

Sand recycling producing process

Waste sand tank→belt conveyor→crusher→bucket elevator→sand bucket→adding material→calcination→cooling and dust removing→bucket elevator→sieve→bucket elevator→final sand tank→silicon sand

Main characteristics

  • High efficiency, energy saving, easy operating, calcining sand without any resin sand
  • The ratio of thermal expansion reducing: recycling sand’s thermal expansion ratio is about 0.5%, suit for producing high strength and low gas-forming precoated sand, can reduce the inner strength of castings so that to prevent deformation of casting. It can also improve the lifetime and the accuracy of the mold.
  • After calcining, original sand surface alkaline oxides and organic matter decreased, so that the performance of precoated sand can be improved, and greatly reduce the gas-forming amount. Has test before, the original sand itself gas-forming amount is 3.5-4.8ml/g. But recycling sand, the gas-forming amount is about 0.5ml/g.
  • Improving bonding strength: Sand produced by recycling production line, the key activity of silicon dioxide oxygen so as to improve the bonding strength between sand and resin:
  • Producing costs of recycling sand is low: The recycling sand only need: natural gas 20m³/ton; coal: 70kgs; two operators;

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Office

Add:Heli Technological & Economic Zone,
Ningguo City, Anhui Province
China 242300

Tel: 0086-563-4111988
Fax:0086-563-4111988
Phone:0086-15856363380

Email: sara.wu@nghexin.com
sarawu_smart@163.com

Working Hours:
Mo-Sa: 8:00-19:00
Su: 8:00-12:00

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Get In Touch

Add:Heli Technological & Economic Zone,Ningguo City, Anhui Province
China 242300

Tel: 0086-563-4111988
Fax:0086-563-4111988
Phone:0086-15856363380

Email: sara.wu@nghexin.com
sarawu_smart@163.com

CASTING GRINDING BALL PROJECT

Step 1# Melting

Step 2#Making Balls 

Step 3#Separating & Cleaning

Step 4#Heat Treatment 

Step 5# Analysis

Related Web: www.nghexin.co.za

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