asbestos board equipment
 

       Asbestos board equipment: What do the colors of high pressure asbestos board represent?

 

　　Red is ordinary asbestos board, black is high-pressure asbestos board, green is oil-resistant asbestos board, and white is acid and alkali-resistant asbestos board.

 

　　 1. Specific introduction: Asbestos mat is made of asbestos fiber and rubber as main raw materials, supplemented by rubber compounding agents and fillers, through mixing and stirring, hot roll forming, vulcanization and other processes. Asbestos fiber gaskets can be divided into ordinary rubber gaskets and oil-resistant asbestos rubber gaskets according to their formula, process performance and use. It is suitable for the sealing of water, steam, oil, solvent, medium acid and alkali, and used in the sealing of medium and low pressure flange connections.

 

　　2. Scope of application: suitable for sealing of the mouth, manhole, hand hole of the reactor, the hand hole of the boiler, the smoke box belt, and the sealing of the steam ball. Products are used in many fields such as chemical industry (medicine, pesticide, fertilizer, dye, polymer, intermediate, etc.), petroleum, electronics, machinery, electric power, environmental protection and so on.

 

　　3. Classification: Rubber asbestos gaskets are classified into high, medium, low pressure and oil resistance. Temperature resistance: -~degree; pressure resistance: 0~5Mpa; Ph value: 4~14; suitable for weak acid, salt, petroleum, steam, liquid ammonia, water, etc., used in various flanges, valves, containers and other gaskets piece. Asbestos cloth ring (or metal wire reinforced), temperature resistance: -~degree; pressure resistance: 0~6MPa; Ph value: 4~14; suitable for weak acid, salt, petroleum, steam, liquid ammonia, water, etc., used in boilers , Containers and other equipment are sealed.

 

　　 4. Standard: --88

 

　　 Asbestos board equipment： asbestos production process and equipment

 

　　Asbestos production: ore crushing, dissociation of loose asbestos, and then air separation, impurity removal and classification in the movement of materials, the beneficiation process is a full dry process.

 

　　The wet process has no dust problem, and the process is also re-selected, but the special structure of asbestos makes it difficult to dry.

 

　　 Reply to the enthusiastic netizen "How to choose asbestos": The ore is crushed by a specific crusher. As the size of the ore gradually decreases, the asbestos fiber separates from the ore and is produced in a fluffy state. Due to the low density of asbestos fibers, the asbestos is in the upper layer and the gangue is in the lower layer through mechanical movement, and the asbestos fiber is sucked out by the negative pressure wind. This is a dry process.

 

The asbestos beneficiation wet process is to put the crushed and separated asbestos and gangue mixture into the water. In the water movement, there are different trajectories. The asbestos fiber floats in the upper layer. The movement speed is fast, the falling point is far, and the density is high. The grains are in the lower layer, the moving speed is small, the falling point is close, and the products of different distances are picked up to achieve the separation of asbestos and gangue.