How to choose spiral classifier spiral classifier maintenance method

The grading machines mainly include high enthalpy type single spiral and double spiral, submerged single spiral and double spiral four grading machines. So how should spiral classifier be purchased? What is the maintenance method of spiral classifier? Then follow Xiaobian to find out about it.

How to choose spiral classifier

The commonly used trough classifiers are hydraulic classifiers, classic Val-type hydraulic classifiers, and KP-4C classifiers.

The hydraulic classifier is a free-falling classifier. When dealing with high-density and coarse-grained materials, the water consumption is greater than that of the interference settlement type hydraulic classifier, and the discharge pipe is easy to block and the classification effect is poor. However, its simple structure, no power, reliable work, it is widely used in tungsten, tin ore dressing plant.

The hydraulic classifier is suitable for handling materials with small particle size and high fines content. The suitable grading particle size is 2 to 0.074mm, and for grades smaller than 0.074m/n, the grading effect is poor. Appropriate feed concentration is t8", -25%.

When selecting the hydraulic hopper, it is necessary to pay attention to the number of tiers of the hopper and the number of grading levels specified in the process. At the same time, the number of shakers and jigs selected should be taken into consideration.

Genwall type hydraulic classifier is an interference settlement type classifier and is suitable for processing ores with high density and coarse grain.

Spiral classifier maintenance method

1. The oil in the reducer is replaced with new oil within one week of the load operation. Replace it every six months. Check the oil level every class and add it in time.

2. The remaining lubrication points are lubricated with calcium or sodium grease. Twist oil cup once per shift.

3. The grease of large shaft parts bearing is cleaned and replaced once a year.

4, the spiral lining should be replaced immediately after wear.

(I) Installation: The machine can be installed after inspection without damage or loose screws. The classifier should be securely installed on the foundation of poured concrete. The basic design should have a good supporting role to minimize the shear force on the screw.

(2) The operation of the machine can only be operated after the structure and working principle of the spiral classifier are clear.

1. After the spiral body rotates, it can start to be fed into the slurry and gradually reduce the amount of ore.

2. When the spiral body is in working condition, if there is a special fault such as stuck or overloaded, it is necessary to immediately stop the spiral body out of the ore slurry surface. Never allow the spiral body to press in the slurry, and quickly open the mine valve to avoid silting.

3. When starting again, the spiral body must be lowered to a certain position to turn the spiral body.

4. When the machine is in use, if it needs to stop, it is necessary to stop the feeding first. After the classification of the object is finished, there is no material in it and the operation can be stopped.

(III) Maintenance

1. All lubrication points are lubricated with sodium-based grease or calcium-based grease.

2. Every class should check whether the internal lubricant of the reducer is on the oil needle engraved line and change the oil every 6 months.

3, should always check the lower bearing or intermediate bearing bush, bearings, seals wear, bearing bushes are damaged, in order to replace.

4. The bearing lubrication must use a manual dry oil pump to press the high pressure oil into the bearing every 4 hours to maintain the sealing performance of the bearing.

There are many factors that affect the classification efficiency of spiral classifiers in the industry. Apart from some man-made operational factors, they are related to the nature of the ore particles. They mainly refer to the ore density, grain size, mud content, and ore concentration, and also to the classifier. The structure and operating parameters are related.

The above is a brief introduction for Xiaobian. If you want to know more related information, please continue to pay attention to Qijia Consulting. More exciting consultation, please stay tuned.

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