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How To Select Aluminum Hydroxide Grinding Machine And Other Powder Crushing Machines In The Preparation Process Of Aluminum Hydroxide Powder?

Release date: 2023-02-20 11:29:12

Aluminum hydroxide has the characteristics of non-toxic, non-volatile, non-precipitation and cheap price. At the same time, it has good flame retardancy, smoke suppression function and relatively low decomposition temperature, and has good flame retardancy matching with rubber, plastic, epoxy resin and other polymers. It is a large amount of inorganic flame retardant. Filler aluminum hydroxide fine powder (5μMmedian particle size25μm) The preparation of aluminum hydroxide is an important part of the aluminum hydroxide production line. So, how to choose aluminum hydroxide powder crushing machinery? HCMilling(Guilin Hongcheng) is the manufacturer of aluminum hydroxide vertical grinding mill. The following will introduce how to select aluminum hydroxide grinding mill for the production of aluminum hydroxide powder?


aluminum hydroxide ultra-fine grinding mill

At present, the preparation of fine aluminum hydroxide powder in the aluminum hydroxide production line adopts the method of crushing coarse aluminum hydroxide particles. According to different mechanical principles of aluminum hydroxide powder crushing. It can be divided into air impact grinding (air mill), mechanical impact grinding (mechanical mill) and abrasive impact grinding (ball mill). The airflow mill is an airflow mill with a grading structure on the inside. The raw material is added through the screw feeder, and is attracted to the inner chamber of the crusher by the jet effect of the nozzle. By the supersonic air flow from the nozzle nozzle nozzle, the raw material is accelerated to high speed in the accelerating tube and collided on the impact surface. After being collided, the material is crushed under the action of high-speed rotating air flow and material friction. Mechanical impact type aluminum hydroxide ultra-fine grinding mill(mechanical mill) refers to the aluminum hydroxide ultra-fine grinding mill equipment that the rotary body (rod, hammer, blade, etc.) rotating at high speed around the horizontal or vertical axis has a strong impact, impact, shear and other effects on the material, causing it to have a strong impact and collision with the wall or the fixed body and between the particles, thus crushing the particles. The ball mill uses the impact of the falling abrasive body and the grinding action of the abrasive body and the inner wall of the ball mill to crush and mix the materials. When the ball mill rotates, due to the friction between the grinding body and the inner wall of the ball mill. Bring the grinding body up and down in the direction of rotation. In this way, the material is continuously crushed.


The above three crushing methods are the basic situation of China's hydrogen and aluminum crushing equipment at present. Ball milling has low capacity, high energy consumption and high viscosity, mechanical milling has high capacity, low energy consumption and high viscosity, and ball milling has low capacity, high energy consumption and low viscosity. At present, there is an urgent need for a production process capable of producing low-viscosity aluminum hydroxide with high capacity and low energy consumption.


HCMilling(Guilin Hongcheng), the manufacturer of aluminum hydroxide vertical grinding mill, recommends you choose HLM aluminum hydroxide vertical grinding mill as the aluminum hydroxide powder crushing machine. The process flow of the aluminum hydroxide vertical grinding mill production line is as follows: raise the temperature of the air in the vertical grinding mill to 150-170 ℃; In the process of temperature rise, the aluminum hydroxide raw material is placed in the vertical grinding mill for crushing treatment to obtain the low viscosity filler aluminum hydroxide. When the aluminum hydroxide vertical grinding mill works, the motor drives the grinding plate to rotate through the reducer, and the material falls to the center of the grinding plate from the feeding port, moves to the edge of the grinding plate under the action of centrifugal force and is rolled by the grinding roller. The crushed material overflows from the edge of the grinding plate, and is carried to the high-efficient powder concentrator integrated with the vertical grinding mill by the high-speed upward hot air flow from the nozzle ring (air ring), and the coarse powder returns to the grinding plate after being sorted by the separator for re-grinding; Fine powder flows out of the mill with the gas and is collected in the dust collection device of the system, which is the product. Coarse particles that are not carried by the hot air flow and metal parts that are accidentally entered sink from the air ring, scraped out by the scraper, and then fed into the mill by the external circulation bucket elevator for grinding again.


HLM aluminum hydroxide vertical grinding mill is widely used in cement, electric power, metallurgy, chemical industry, non-metallic minerals and other industries. It integrates crushing, drying, grinding, grading and transportation, with high production efficiency. It can grind blocky, granular and powdered raw materials into required powder materials. First, when wet aluminum hydroxide is added into the raw material bin, the steam preheater is turned on, and the aluminum hydroxide vertical grinding mill is turned on at the same time. Then, the aluminum hydroxide vertical grinding mill is used for drying and crushing integrated processing. When the aluminum hydroxide vertical grinding mill is used for drying and crushing integrated processing, the steam heat exchange is used to raise the temperature, which meets the corresponding temperature requirements, Moreover, because the steam temperature is not more than 180℃, aluminum hydrogen has no risk of losing crystalline water, which improves the quality and avoids the traditional drying mode using electricity or natural gas as the energy source. When the hot air stove is above 400 ℃, aluminum hydrogen drying is easy to cause over-drying, which affects the product quality. At the same time, the circulating air system is used to recover part of the discharged hot air for secondary utilization, reduce heat loss and reduce energy consumption, The aluminum hydroxide crystal ground by the aluminum hydroxide vertical grinding mill has perfect morphology and greatly reduced viscosity. At the same time, the integrated drying and crushing scheme is used to heat the incoming air and take away the attached moisture in the raw material, so as to achieve the purpose of drying and crushing at the same time, avoid the increase of energy consumption caused by secondary transportation, and effectively reduce energy consumption.


If you have a purchase demand for aluminum hydroxide powder crushing machinery, please contact HCM for detailed parameters and quotations of aluminum hydroxide vertical grinding mill equipment.