In industrial production, there are many materials or finished products that need to be stored in a dry environment for a long period of time. This is because in a humid environment, microorganisms are prone to grow and the materials become moldy. For example, textile enterprises store fabrics, and food processing companies store grain. Before wood processing, wood must be dried so as not to cause distortion after processing and forming. Like the storage of grain, in the past we used natural air-drying and solar irradiation to bring the grain to a certain degree of dryness. In ancient times, in order to enable food to dry faster, the use of ventilated openings with large air flow characteristics to speed up the drying of grain, which is considered the earliest "natural" drying oven.

However, with the rapid development of modern society, the requirements for improving the efficiency of all walks of life are also very urgent. The effect of drying materials through natural winds can no longer meet the needs of modern industrial development. Under this demand, the appearance of dryers has brought about an increase in the drying efficiency of materials or finished products in the industry. The dryer in the true sense appeared in the middle of the 19th century. The industrial revolution liberated the productivity and increased the production efficiency. Especially the production efficiency of the textile industry was greatly increased. Therefore, the demand for dryers was great, and the dryers became mass-produced. The production of dryers developed independently as a separate industry. After more than 100 years of continuous progress, the structure of dryer products has also been gradually improved. Various types of dryers are suitable for special drying needs of all walks of life. In particular, the appearance of the far-infrared and microwave dryers in the 20th century means that the drying technology has shifted from simple wind drying and thermal drying in the past to a higher technological level.

The start of the dryer industry in China is very late for developed countries. However, through continuous exploration of the dryer industry in our country, we have also achieved definite results in dryer technology. At present, China's dryer industry has formed a considerable industrial scale. The dryers produced have been able to fully meet the needs of the domestic market and ended the history of China's industrial drying relying on imported dryers.

Considering the development of the dryer industry in China, although the dryer industry in China started late, it has entered a relatively mature stage of development. Domestic dryers play a huge role in the chemical, pharmaceutical, food, textile, paper and other industries. . It is believed that with the continuous development of science and technology, China's dryer technology will certainly be able to make greater breakthroughs in the future development.

NPK Compound Fertilizer

NPK Compound fertilizer is a type of fertilizer containing two or three nutrient of nitrogen, phosphate,and potassium.The main raw material have Ammonium Sulphate, urea,potassium sulfate, Potassium Chloride,potassium nitrate,Mono Ammonium Phosphate and so on.Currently our production technology includes:spray granulation,steam granulation,extrusion granulation.

NPK Compound fertilizer can supply two or three main nutrients and trace elements,its nutrient release uniformly,its efficiency is stable and long and has less disadvantage on the soil.In general the appearance is granule with low hygroscopicity and not easy to agglomerate. It`s easy to store and transport so you can save costs..

NPK Compound Fertilizer

Appearance

Granule

Item

Standard

Result

Nitrogen Content

20±1.5%

20.12%

Phosphorus Content

20±1.5%

20.62%

Potassium Content

20±1.5%

20.32%

Total Content(N+P2O5+K2O)

60% Min

61.06%

Moisture

1.5% Max

1%

Customized fertilizers can be provided.Formula and color and packing can be customized.

NPK Compound fertilizer is suitable for most crops,but there`re still some points to note.

1. Due to the different raw materials, compound fertilizer can be divided into three categories as chloride base fertilizer,sulphate base fertilizer and nitrate base fertilizer,please select the right product based on price, crop and soil type

2. The nutrient proportion of compound fertilizer is fixed.Please match up with other simple fertilizer as needed.


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