Principle of ultra - fine milling machine2019-09-02 10:25:50

Summary:Ultra-fine milling machine to enter the material from the hopper, the material will be divided into two parts by the feeder, part of the feeder into the middle of the high-speed rotation of the impeller.

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Principle of ultra - fine milling machine

Ultra-fine milling machine to enter the material from the hopper, the material will be divided into two parts by the feeder, part of the feeder into the middle of the high-speed rotation of the impeller, the impeller was quickly accelerated, the acceleration up to hundreds of times Gravitational acceleration, and then 60-70 m / s speed from the impeller three uniform flow of the projectile out, first with the sub-collector around the part of the material from the impact of the impact of broken, and then hit into the vortex cavity material Lining, the material lining rebound, obliquely impact to the top of the vortex cavity, but also to change its direction of movement, deflecting downward movement, from the impeller flow out of the material to form a continuous material curtain. Such a piece of material in the vortex crushing chamber by two times as many times the probability of impact, friction and grinding crushing effect. The broken material is discharged from the lower discharge port. In the whole crushing process, the material is self-impact crushing, not in direct contact with the metal components, but with the material lining impact, friction and crushing, which reduces the angle of pollution, to extend the mechanical wear time. Vortex cavity inside the clever air from the cycle, eliminating the dust pollution.

Material into the hopper, the center of the feed hole into the high-speed rotation of the rotor was fully accelerated and thrown by the launch port, first with the rebound after the free part of the material to fall, and then hit the surrounding vortex cavity The vortex is lined up (or counterattacked), first bounces to the top of the crushing chamber, deflects downward, and strikes with the material from the impeller runner to form a continuous material curtain, and is discharged through the lower discharge port The

Ultra-fine grinding of the entire structure is by the host, the analyzer (separator), pipe installation, blower, finished cyclone separator, jaw crusher, bucket hoist, electromagnetic vibration feeder, electric control motor and other components. One ultra-fine grinding host by the rack, into the volute volute, blade, roller, grinding ring, casing and motor components.

Ultra-fine grinding the whole process (grinding process): large pieces of material by the jaw crusher to the required size, the hopper will be sent to the storage hopper material, and then by the vibration feeder evenly and continuously sent Into the host grinding room for grinding, grinding powder after the fan airflow away. By the analysis machine for grading, in line with the fineness of the powder with the air through the pipeline into the whirlwind collector, the separation and collection, and then discharged by the powder tube is finished powder. The airflow is then blown into the blower by the upper end of the large cyclone collector. The entire airflow system of the unit is closed and circulated in positive and negative pressure conditions.

In the mill room due to the grinding material has a certain amount of water, grinding heat generated when the grinding chamber gas evaporation to change the air flow, and the whole pipe connection is not tight so that the outside of the gas was inhaled, so that the circulating air flow increases, resulting in milling Machine powder less or even explosive machine, which, the new European version of the ladder-type milling machine has been set in the upper part of the body with explosion-proof measures to maximize the explosion to avoid ultrafine mill brought accidental injury, at the same time, this The situation can also be achieved by adjusting the balance between the fan and the host to achieve the balance of airflow, and the excess gas into the small cyclone collector, the gas into the fine dust collected, and finally by the small whirlwind collector The upper exhaust pipe into the atmosphere, or into the dust collector to purify the exhaust gas, but the technical requirements of the operator is relatively high, and the need to detect and adjust.

Ultra-fine grinding machine work process is driven by the drive to drive the central axis of rotation, the top of the shaft connected to the plum frame, equipped with a roller set and the formation of swing fulcrum, roller around the grinding ring around the same time, the roller itself Due to friction and rotation. The lower part of the plum is equipped with a blade system, the position of which is in the lower end of the roller. The blade and the roller are fed into the grinding roller and the grinding ring between the grinding roller and the grinding ring. Roller rotation produces outward centrifugal force (ie, squeezing force) to crush the material, that is, to achieve the purpose of milling.

Analysis machine (separator) through the speed motor and by two deceleration drive on the turntable 60 blades on the rotation, the formation of the grading role of the powder. The speed of the blade speed is adjusted according to the size of the finished powder. If you want to get more fine particle powder, you must improve the blade speed (at the same time also pay attention to the wind speed with the fan), so that the contact with the powder to increase the leaves, so that the undesirable powder was the blade to the outer wall and the central air from the coarse Powder due to the role of gravity into the grinding chamber for grinding, qualified finished powder by the leaves inhaled with the airflow in the large whirlpool collector, the role of the collector, the air and the powder was separated, the powder was collected.

Performance characteristics of ultra - fine milling machine

1. The structure is simple and reasonable, self-attack broken, ultra-low use of the cost;

2. Unique bearing installation and advanced spindle design, so that the machine has a heavy load and high-speed rotation characteristics

3. With crushing, coarse grinding function;

4. High reliability, strict security devices to ensure equipment and personal safety;

5. Smooth operation, work noise, energy efficient, high crushing efficiency;

6. By the material moisture content of small, water content of up to 8%;

7. Wear parts loss is low, all wearing parts are used at home and abroad high-quality wear-resistant materials, long service life A small amount of wearable parts made of special hard wear-resistant material, small size, light weight, easy to replace accessories.

8. Eddy current chamber internal air circulation, dust pollution.

9. Impeller and vortex crushing cavity of the material from the lining to significantly reduce the cost of wear and maintenance work. Production process, the stone can form the protection of the bottom, the body without wear, durable.

10. Installation in a variety of ways, removable installation.

11. Products were cube, bulk density, iron pollution. Can be used for stone finishing machine ultra - fine milling machine failure and troubleshooting methods.

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