A Simple Guide To Vibrating Sieve Selection

The choice of vibrating sieve is one of the concerns of all users. If the selection is not suitable, it will not only increase the capital investment, but also cannot achieve a good screening effect. This situation is not what our users want to see. In order to avoid improper selection by users and cause unnecessary losses to users, the following are some aspects that need to be paid attention to when selecting models:

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1. The purpose of using vibrating sieve

Different users sieve different materials, and their requirements are also different. For example, some users use vibrating sieve to sieve the particle size of the material, and some are used to sieve the impurities contained in the material. Some users are used to filter the slurry, and some users have special requirements and need to design a special structure. Therefore, the purpose of the user is different, and the selected vibrating sieve is also different.

2. Whether the processed materials are special

Such as the viscosity is large or with static electricity and how much water content. These are related to the selection of vibrating sieve. For general block, granule and powder materials, suitable models can be selected according to the large output and the size of the sieving mesh. For some materials with high viscosity or high water content, it needs to be designed separately to avoid low penetration of the material and blockage of the network. The shape of the material and the number of screening meshes will have a great impact on the screening effect. Therefore, when choosing a vibrating sieve, you must have some understanding of the material, so that you can choose a suitable model.

3. Working time and throughput

The working time of the vibrating sieve will affect the processing capacity of the equipment. Therefore, according to the user's requirements in terms of output, after determining which equipment is suitable for use, it is necessary to determine the size of the equipment model according to the output and working time. Improper vibrating sieve model will make the processing capacity not meet the user's requirements. Therefore, when selecting the model, it is necessary to know whether the user is working 8 hours or 24 hours. And the size of the output also determines the choice of vibrating sieve type. For the screening of the same material, not only a rotary vibrating screen but also a linear vibrating sieve can be used. The specific type of equipment to be selected depends on the output of the user.

4. The size of the sieve mesh

If the user requires a finer mesh to be screened, ordinary vibrating sieves have a limit of use, that is, below 325 meshes. Therefore, if you want to screen finer materials, you need to use airflow sieves, ultrasonic vibrating sieves or cyclone sieves. Type of fine vibrating sieve.

5. Requirements for screening accuracy

If the user requires high screening accuracy, ordinary vibrating sieve or precision sieve can be used. If the user wants large output and the requirements for screening accuracy are not so strict, linear vibrating sieve or mining vibrating sieve can be used.

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6. Screening method

According to the difference of user materials, the material screening methods are also different, mainly dry screening and wet screening, the choice of vibrating sieve depends on the specific situation. The installation method of the equipment is mainly determined according to the user's production site and the layout in the production line. In some occasions, the vibrating sieve needs to be designed as a seat type due to space reasons or the installation layout of the upper-end equipment, and in some cases it needs to be designed as a hanging type. At the same time, the installation method of the motor can also be designed according to the above conditions.

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7. Requirements for ambient temperature, dustproof, etc.

For example, the screening of sintered ore under blast furnace requires the use of hot ore vibrating sieve to meet the high temperature requirements of the material. Some factories have stricter requirements on the production environment, so it is necessary to design the vibrating sieve as a sealed or dust-proof structure.

Dahan vibrating sieve manufacturer warmly reminds users that when choosing vibrating sieve, you can first understand the requirements of the material characteristics and your own purpose of use, and choose the appropriate vibrating sieve according to these requirements. Contact Dahan Machinery, we will design and recommend suitable vibrating sieve and screening and filtration solutions for you.

The centrifugal sifter uses high-speed airflow to push the product particles through the screen for screening. So when choosing a centrifugal sifter, what convenience should be considered? The following will explain in detail.

1. Is the material powdery?

For sifting low bulk density and light weight products/applications such as talc, light calcium, heavy calcium, zinc, traditional Chinese medicine, quartz, etc., the centrifugal sifter should always be selected.

2. Do you need high precision?

For sifting fine powder or fine particles, since the centrifugal sifter uses a high-speed air flow as a carrier in a closed state, the fully diffused powder particles have a sufficient pressure, which will help low bulk density products easily pass through the screen area , so as to achieve maximum efficiency in the screening process, the screening can reach 80-530 mesh, and the penetration rate can reach 85-95%.

3. Whether the output meets the requirements

For sites with high output requirements, it is recommended to choose centrifugal sifter, whose hourly output per square meter of screen area is about one ton, and the screening efficiency is above 95%. We have had a situation where a customer used a conventional shaker to screen silica sand, they wanted a 3 t/h output and were able to achieve this with 3 circular shakers. One of our product experts visited their factory and suggested to use a centrifugal sifter to test the silica sand screening process, the result was exactly what the product expert suggested, now they have replaced the output of 3 circular shakers with 1 centrifugal sifter .

4. Others: dust-free and noise-free operation

The centrifugal sifter acts on centrifugal force and does not produce any vibration, so rigid connection can be made at the inlet and outlet, while the general vibration works and only flexible connection can be made at the inlet and outlet, the flexible connection increases the chance of leakage, air The dust content is less than 10mg/m3.

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