Walnut Shell Granules in Size 0.4 mm to 0.8 mm
Proximate Analysis of Walnut Shell
Walnut shell filtering material is made of high quality walnut shell,through crushing,polishing,steaming and washing,high temperature treatment,two times screening processing.Walnut shell filtering material with high hardness,wear resistance,good pressure resistance,stable chemical property,do not dissolve in acid and alkali.It have excellent adsorption sewage interception capability and adsorption rate is 27-50%,with good hydrophilicity,oil resistance,etc.
| Cellulose | 40 – 60% |
| Lignin | 20 – 30% |
| Methoxyl | 6.50% |
| Nitrogen | 0.10% |
| Chlorine | 0.10% |
| Cutin | 1.00% |
| Toluene Solubility | 0.5 – 1.0 % |
| Ash | 1.50% |
Typical Properties of Walnut Shell
| Specific Gravity | 1.2 to 1.4 |
| Bulk Density (lbs per ft3) | 40 – 50 |
| Mohs Scale | 4.5 – 5 |
| Free Moisture (80ºC for 15 hrs) | 3 – 9% |
| pH (in water) | 4 – 6 |
| Flash Point (closed cup) | 380º |
Granularity Grade of Walnut Shell for Blasting
| Grade | Mesh Size | Particle Size |
| Extra Coarse | 4/6 Mesh | 4.75 – 3.35 mm |
| Coarse | 6/10 Mesh | 3.35 – 2.00 mm |
| Coarse | 8/12 Mesh | 2.36 – 1.70 mm |
| Medium | 12/20 Mesh | 1.70 – 0.85 mm |
| Medium | 14/30 Mesh | 1.40 – 0.56 mm |
| Fine | 18/40 Mesh | 1.00 – 0.42 mm |
| Fine | 20/30 Mesh | 0.85 – 0.56 mm |
| Fine | 20/40 Mesh | 0.85 – 0.42 mm |
| Extra Fine | 35/60 Mesh | 0.50 – 0.25 mm |
| Extra Fine | 40/60 Mesh | 0.42 – 0.25 mm |
| Flour Grade | 40/100 Mesh | 425 – 150 micron |
| Flour Grade | 60/100 Mesh | 250 – 150 micron |
| Flour Grade | 60/200 Mesh | 250 – 75 micron |
| Flour Grade | -100 Mesh | 150 micron and finer |
| Flour Grade | -200 Mesh | 75 micron and finer |
| Flour Grade | -325 Mesh | 35 micron and finer |
What Applications of our Walnut Shell for Abrasives ?
The Walnut Shell can be used as abrasive, filter and stuffing material.
As abrasive material:
Pearls and jewels polishing
Electronic components polishing and deburring
Punching parts polishing and deburring
Spectacle fittings polishing and deburring
Button polishing and deburring
As filter material:
Containing oil Industrial water treatment
Industrial sewage treatment
Environmental protection equipment filter
Water purification filter material
Residential water treatment
As stuffing material:
Sealing off the ground fissures in oil drilling
