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Cement Equipment Features
Jun 19, 2017

Cement Equipment The study of the motor equipment drag problem is based on understanding the characteristics of the motor running and the characteristics of the cement production equipment. And familiar with the cement equipment in the motor drag the common problem is to develop appropriate countermeasures to solve these problems, but also to make the cement production of electrical and mechanical equipment to protect the normal operation. Therefore, Cement Equipment this paper discusses several common and typical cement equipment in the motor drag the common problems were discussed, and developed the corresponding measures to solve these problems.

Centrifugal fan is an important process equipment for cement plants. In the event of failure, it will cause the entire cement production plant to stop production. Centrifugal fan wind pressure is relatively stable, with low noise, low loss and less investment and many other advantages. However, Cement Equipment the centrifugal fan has a soft motor drag characteristics, the motor speed with the load changes in the severity of the occurrence of a more substantial change.

On the one hand, the centrifugal fan in a long time put into use, the motor will repeatedly violent shock. In this case, the bearing seat will be violent shaking, Cement Equipment over time, impeller bearing is easy to be damaged. As a result, bearings of centrifugal fans are often damaged.

On the other hand, in the early stages of feed production, high-temperature fans often have the phenomenon of free-end bearing heat. In this case, even if the use of air-cooled and watering measures, but also can not control the temperature continues to rise, can only take a way to stop cooling, Cement Equipment resulting in reduced production efficiency.

Mill is the cement plant in the power of the largest equipment, but also the motor speed of the fastest turn the cylindrical device. In the past period of time, due to the limitations of people on the start of the mill, most of the cement plant will use a small starting current and start the torque of the winding motor drag. Therefore, the efficiency of the mill is often relatively low, making the cement plant suffered a certain economic losses. And for now, most of the cement mill equipment are used in asynchronous motors, often with high efficiency.

As far as the actual situation is concerned, there are five common problems with the ball mill, one is that the motor motion noise is too large and the current is unstable. Second, Cement Equipment the motor speed is not normal or difficult to start. Three are due to abnormal rotation of the motor, resulting in the phenomenon of stator and rotor rubbing. Fourth, the rolling shaft heat caused by the motor stuck. Five by the rotor winding end of the solder joint welding, resulting in the motor circuit or ground phenomenon.

Most of the small and medium-sized equipment in the cement plant is to assist other large-scale equipment to complete the production, so generally use are less efficient and less cost of the motor. In fact, most of these devices are used to drag granular and powdered materials, so these equipment but a problem, it will lead to the production line downtime.

On the one hand, because the transport is a granular and powdery material, so the motor is very easy because of dust is too thick and failure, at the same time, Cement Equipment these devices often run instability phenomenon.

On the other hand, bucket elevator and screw conveyor is a commonly used material handling equipment, but often there will be cantilever shaking phenomenon, and even the elevator chain breakage and transmission belt slip phenomenon, making the material transport efficiency greatly reduced. Cement Equipment Moreover, when the temperature is too high, some auxiliary equipment will appear to stop the operation of the phenomenon.

Cause centrifugal fan bearings are often damaged for three reasons, one is the centrifugal fan impeller fouling, the second is the impeller shaft cantilever caused by excessive bearing pressure, the third is the bearing selection is too small. Therefore, on the one hand to do the kiln head of the seal, reduce the amount of dust at the kiln head. At the same time, to regularly clean the centrifugal fan impeller, Cement Equipment so as to ensure the operation of centrifugal fan.

On the other hand, the impeller side bearing seat to move the direction of a certain distance, thus shortening the impeller and the impeller bearing seat distance, reduce the bearing pressure. In addition, to select the appropriate type of bearing to prevent the bearing and the device itself does not match the phenomenon. The cause of centrifugal fan bearing overheating is the reason why the installation of centrifugal fans improper operation, so, as long as the specification of skilled workers to operate, you can make the centrifugal fan to maintain normal operation.