The production process of silicate cement is representative in cement production. It is made of limestone and clay as the main raw materials. It is crushed, compounded and ground to make raw materials, then fed into the cement kiln to calcine the mature materials, and then cooked. It is made by adding appropriate amount of gypsum (sometimes mixed with mixed materials or admixtures).
Cement production can be divided into dry method (including semi-dry method) and wet method (including semi-wet method) according to different preparation methods of raw materials.
Aluminate cement 1 is produced dry. The raw materials are simultaneously dried and ground, or dried and then ground into a raw material powder and then fed into a dry kiln to calcine the mature material. However, there is also a method in which the raw material powder is added into an appropriate amount of water to form a raw material ball, and is sent to the Lier kiln for calcining the mature material, which is called a semi-dry method, and is still a kind of dry production.
2 wet production. After the raw material is added with water powder to form a raw slurry, it is fed into a wet kiln to calcine the mature material. There is also a method of dehydrating the raw slurry prepared by the wet method, and preparing the raw material block into the kiln to calcine the mature material, which is called a semi-wet method, and is still a kind of wet production.
The main advantage of dry production is low heat consumption (such as dry heat of kiln clinker with preheater is 3140 ~ 3768 joule / kg), the disadvantage is that the raw material composition is not easy to be uniform, the workshop dust is large, and the power consumption is high. . Wet production has the advantages of simple operation, easy control of raw material composition, good product quality, convenient slurry transportation, less dust in the workshop, etc. The disadvantage is high heat consumption (clinker heat consumption is usually 5234~6490 joules/kg).
No-Carrier Black Masterbatch is one special black mastebatch. The biggest speciality of this Black Masterbatch is no any polymer carrier, the main formulas are the carbon black and some chemical additives. This black masterbatch has very very low MFI, bad dispersion. So, it can not be directly used for blowing, injection, molding. But this black masterbatch has high pigmentation, only be used for compounding. It would not damage the engineer material's performance.
No-Carrier Black Masterbatch
No Carrier Black Masterbatch,No Carrier Carbon Black Masterbatch,Compound Black Masterbatch,No Polymer Black Masterbatch
Anda Masterbatch( Group) Co., Limited , http://www.polymer-masterbatch.com