Fine Grade Walnut Shell Powder Applications

Because the hardness of walnut shell is too big to not easy to break up, this special property brings big business opportunities. The American investigator finds out the walnut shell will have wide application after being super-micro broken up.

In the metal washing industry, walnut shell can be used as metal washing materials and metal polishing materials after treatment. For example, the aero engine, circuit board, steamer gearing and car gearing can be washed by treated walnut shell. After being broken up into fine particles, the walnut shell will have certain elasticity, restoring force and admitted weight, so the walnut shell can be used as abradant in the stream washing operation.

In the oil industry, it’s difficult for oil drilling and mining in the ruptured stratum and loose geology. In this case, it is possible to adopt walnut shell super fine powder to fill in as bridging agent, making sure the oil drilling and mining can be taken freely.

In the senior painting industry, after being processed, the walnut shell can be added into paint, making the paints have similar texture with plastic, whose performance is rather superior to normal paints. This kind of paints can be painted onto plastic, wallpaper, brick and wallboard to cover the cracks on them.

In the explosive industry, putting super fine walnut shell powder into the explosive with other additive can increase greatly the explosive power.

In the cosmetics industry, because walnut shell super fine powder is pure natural material without any toxic substances, walnut shell powder can be used as one type of coarse gritted additive agent in the soap, toothpaste and other skin care agents with excellent effect.

The processing methods of super fine grade walnut shell are as follows:

1.       Grinding medium crushing
The Grinding medium crushing is depending on the acting force between the walnut shell and moving medium breaks the walnut shell up into pieces. The typical equipment is ball crusher, mixing mill, etc. The walnut shell grain sizes processed by grinding medium crushing are a little bigger and uneven.

2.       Mechanical shearing super fine crushing

The mechanical shearing super fine crushing is normally applied to the processing of toughness materials and flexible materials.

3.       Airflow super fine crushing

The airflow super fine crushing uses supersonic airflow as the grits carrier, along with airflow movement, the grits collide with each other, achieving in the purpose of breaking up into pieces. The types of airflow super fine crushing includes flat type airflow super fine crushing, circulating pipe type airflow super fine crushing and injecting type airflow super fine crushing. The walnut shell grain sizes processed by airflow super fine crushing are even. And even more that the grits temperature rise is very low. According to the walnut shell characteristic, adopting airflow super fine crushing processes fine grade walnut shell powder is the ideal choice.

Now in the USA, there are already some manufacturers sell the super fine walnut shell powder. And we have confidence that the walnut shell marketing will be larger and larger in the future, even the value of walnut shell will exceed that of walnut kernels, along with the walnut shell is found out having more and more applications.

We Flowspec Industrial Limited is special in processing and exporting the high quality walnut shell to all over the world for over 20 years. If you have some need or inquiry on the wanut shell, welcome to visit our website of www.walnutshellpowder.com to learn more about our walnut shell, and get a quote @email of flowspec@hotmail.com

What is a Walnut Shell Filter?

Although filtration is the most effective method of removing the suspended matter in the water, but to the water including oil and grease, the normal filtration processing does little. Walnut shell filter is developed especially to treat the waste water including oil and grease.

Walnut shell filter is normally applied to oil field and other oily sewage. Presently, the walnut shell filter is playing a great role in oily waste water treatment in various industries.

Walnut shell filter adopts walnut shell after special processing as filter medium. Walnut shell has strong adsorptive interception capacity (adsorption rate: 25~53%) and stress tolerance (23.4kgf/cm2); walnut shell can be backwashing and regeneration; walnut shell has strong the chemical property of walnut shell is stable not easy to dissolve in the acid solution or alkali solution; the hardness of walnut shell is strong; walnut shell has good abrasion resistance, not needing replacement for long time; walnut shell has good hydrophilicity and oil impregnation. Because the specific gravity of walnut shell (1.255g/cm3) is bigger than that of water, it’s easy for backwashing and regeneration. And even its biggest advantage is adopting the water before filtration directly to back wash, not needing the help of air supply and chemical agents. As a result, the running costs of walnut shell filter is low; the management of walnut shell filter is simple; the backwashing strength of walnut shell filter is small; the filtration effect of walnut shell filter is good; the filter materials of walnut shell filter is not easy becoming putrid for long time; and even more, the walnut shell filter can be used singly or double in series according to water quality requirements.

 

Walnut Shell Characteristics



Cadillac before Walnut Shell Polishing

Cadillac after Walnut Shell Polishing

Walnut shell is one type of grains after degreasing, breaking up and screening. Because there are lots of microspores on the walnut shell surface, walnut shell is ideal filter material with excellent adsorption effect. Because the walnut shell has many faces, walnut shell is natural tumbling material and polishing abrasive. And even the walnut shell is soft compared with metal abrasive or stone abrasive, the walnut shell does not damage the work piece surface.

Walnut shell is with strong stress tolerance. The walnut shell with sizes of 1.25~1.60mm, the average ultimate compressive strength is 0.2295KN (23.40kgf). The walnut shell with sizes of 0.80~1.00mm, the average ultimate compressive strength is 0.165KN (16.84kgf).

The chemical property of walnut shell is stable. Walnut shell is non-toxicants, its dissolution into acid, alkali or water is very small. The walnut shell wastage rate into hydrochloric Acid solution is 4.99%. The walnut shell wastage rate into hydroxide solution is 3.80%.

Because there are lots of microspores on the walnut shell surface, walnut shell is ideal filter material with excellent adsorption effect. Walnut shell is widely used in oil field to adsorb oil stain. Walnut shell is widely used in industrial wastewater treatment of chemical industry and leather industry to improve the water quality. walnut shell does not cause water quality deterioration. Walnut shell is widely used in water plant to purify water quality. Walnut shell is the optimal water purification filter material for series of filters.

Because the walnut shell has many faces, walnut shell is applied in polishing or deburring glasses fittings, pearl jewelry, buttons, and electronic components, stampings, etc.

Since our founding in 1981, for over 30 years, Flowspec Industrial Limited has been an industry leader in manufacturing and distributing the renewable, organic, recycled and sustainable walnut shells. Welcome to visit our website www.walnutshellpowder.com and contact us at flowspec@outlook.com 

Walnut Tree

Walnut is called as natural invigorant because of its rich nutrition; walnut can be eaten directly or oil manufacture.Walnut kernels have rich fat, normally 60%, 75%~80% max. Every 100kgs of walnut kernels can manufacture 50~60kgs of walnut oil. Walnut oil smells refreshing fragrance, is mainly made up of unsaturated fatty acid, more than 77% of which are fatty acids and linoleic acid which the human body must need. Walnut kernels also have rich mineral elements of phosphorus, calcium, magnesium, iron, zinc and various vitamin, so walnut kernels have good help in health care, having the effect of preventing and treating coronary disease, promoting skin development, keeping skin nutrition, making skin fine and smooth. mineral elements have special function for the growing development of child and youth, and also have the effect of improving view vision and enhancing memory. According to the "compendium of Materia Medica" records, walnut kernels can supplement qi and nourish blood, moisten dryness and resolve phlegm. So to elderly people, the walnut kernels have the effect of warming and tonifying the lung, stopping ssthma and reducing phlegm.When the walnut tree is in the full bearing period, needing thinning overmuch staminate flower during the planting management to reduce the use up of the nutrient and water into the walnut tree, and then promoting pistillate flower growth, blossom and fruit, increasing the walnut quality and output. The walnut male flower is non-toxic and harmless, but fresh and tender, rich in sugar, protein, lipids and vitamin. After heating up the walnut male flower with boiling water, clean the male flower with clean water, add oil and flavouring, and then one course of delicious salad is finished. If collecting the walnut male flower in big amount, and dry these walnut staminate flower up, these walnut male flower can be stored and eaten for long time. The method of processing the walnut staminate flower is similar to that of processing wild herb. The walnut tree crown is normally harlf round, walnut tree trunk is high and walnut tree limb is tall and straight.The green of walnut tree is cool, and walnut tree sends out pleasant smell. So, walnut tree is normally planted on the both sides of streets or as ornamental tree species. Because walnut tree has big tree crown, much leaves and root system, walnut tree is planted on massif talus slope for water conservation and conservation of both moisture and soil. Because the walnut tree is with big tree body, fast growing and long life, and also can be manufactured into good wood, walnut tree is one of the main tree species of protection forest.Walnut wood is with proper strength, strong impact resistance, stable size property, and be beneficial to hold by hand, walnut wood is traditional military material, wood for musical instruments, wood for sport equipment, wood for stationery instrument, wood for senior furniture, etc.Walnut tree leaves can be used to cure wound, skin disease and enterogastric disease. After boiling the walnut tree bark into the water, using the water wipe the human body can cure the body itching. After boiling the walnut tree bark and poplar tree bark into the water, using the water can cure scrotum eczema.Walnut pericarpium citri reticulatae viride has medical uses and can produce dyes, and can cure some skin diseases and gastralgia.Walnut shell can be used in stone grinding, asphalt felt industry, activated carbon production. And walnut shell can be also trituration as fertilizer.Walnut shell is belong to soft plant polishing material, possessing excellent abrasion performance, even particle size, very high shell content. Walnut shell is used widely in the cleaning and polishing of the parts of mould, instrument, motor, plastic, jewel, glasses, watch, brassie, hairpin, botton, etc. Walnut shell filter has the advantages of strong adsorption forces, big interception amount, oil immersion resistance, double-effect removal of oil and suspended matters, and easy regenerate, etc. The skilled craftsmen make different series of interior decoration from wild walnut shell, such as desk lamp, flower vase, ashtray, tissue case, etc.In a word, the whole body of walnut tree is treasure, further processing is without any pollution. By processing industry, can promote the walnut industry achieve into virtuous cycle.

Walnut Shell Chemical Characteristics

Hi friends,

Today, I'd like to share with you the chemical characteristics of walnut shell.
Walnut Shell Chemical CharacteristicsItem    Unit    Data
Ca        %     0.50%
Mg       %     0.03%
Cu       %      1.31%
Na       %      0.02%
Fe       %      0.02%
Mn      %      0.09%
K        %      0.03%
Zn      %       0.05%