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How many types of sieving are there?
Manual sieving method: i.e. sieving with a hand-held standard sieve, which requires constant tapping during sieving and has the disadvantage of being time-consuming and labor-intensive. The minimum size of 75 microns
Mechanical sieving method: the standard sieve according to the size of the sieve holes stacked into a sieve tower, installed on the vibration sifter, without manual participation in the sieve, can be automatically sieved, sieve size of the minimum 75 microns, there is a certain amount of noise.
Air jet sieving method: the use of negative pressure so that the air flow method so that the sample is sieved The disadvantage is that only a layer of sieving, sieving volume is small, the maximum sieving volume of 30 grams, sieving size of 20 microns minimum.
Sonic sieving method: the use of sound waves generated by the vibration of the sieve, sieve layer 8 layers, sieve size of the smallest 5 microns, the disadvantage of the relative volume of mechanical sieve instrument is slightly larger.
Should I use an ultrasonic rotary vibrating sieve or a straight sieve to sift flour?
Should I use an ultrasonic rotary vibrating sieve or a straight sieve to sift flour?
First, let us understand the working principle and advantages of ultrasonic rotary vibrating screen. Ultrasonic rotary vibrating screen is a device that uses ultrasonic waves and vibration force for screening. Through the action of ultrasonic waves, it can cause flour particles to vibrate at high frequencies on the screen, thereby achieving rapid and uniform screening. Ultrasonic rotary vibrating screen has the advantages of high screening efficiency, high screening precision, and simple operation. It can effectively remove small impurities in flour, and at the same time, it can also achieve precise control of the size of flour particles, making the quality of flour more stable.
However, in-line screening also has its unique advantages. The inline screen is a device that performs screening through gravity and the inclination angle of the screen. Its working principle is relatively simple and its operation is relatively convenient. The inline screen can achieve classification and screening of flour particles by adjusting the inclination angle of the screen. This screening method is suitable for situations where the size requirements of flour particles are not very strict. The screening efficiency of the straight screen may be relatively low, but its structure is relatively simple and the maintenance cost is low.
In summary, the choice of ultrasonic rotary vibrating screen or straight row screen should be decided according to the specific screening needs. If you have strict requirements on flour quality and particle size, and want to achieve efficient and accurate screening, then the ultrasonic rotary vibrating screen is a better choice. It can improve screening efficiency and ensure stable flour quality. If the flour particle size requirements are relatively loose and you want to save on equipment maintenance costs, then a straight screen may be more suitable. Of course, in practical applications, you also need to consider factors such as the price of the equipment, maintenance costs, production scale, etc., and comprehensively weigh all factors to choose the screening equipment that best suits your needs.
Which sifting machine is best for sifting flour?
Which sifting machine is best for sifting flour?

Screening machine is the general term for all vibrating screening machines. There are many categories, such as linear vibrating screen, three-dimensional vibrating screen, drum screen, swing screen, air flow screen and other different screening machines.
Flour is a powdery material, and its particle size is generally not very small. It is very suitable for screening with a rotary vibrating screen. The rotary vibrating screen is used to screen flour finely, with moderate output. It can have up to five layers, with a diameter from 400 to 2000, can satisfy all types of customers. If the demand for screening flour is relatively large and has special properties, you can also use a straight row sieve. The straight row sieve is a vibrating screen that can discharge materials faster. Compared with the rotary vibrating screen, it is more suitable for large-scale flour screening. User.
Other sifting machine types can also be used according to your different screening needs. When using a rotary vibrating sieve to sift flour, you can use a multi-layer sieve. Generally, it is designed with 3 sieving surfaces. The first layer of sieving surface uses a round sieve with a diameter of 17~20mm. The screen mesh with holes is used to remove larger impurities; the second layer of screen surface uses a screen mesh with round holes with a diameter of 12~15mm, which is used to remove medium-sized impurities; the third layer of screen surface uses a screen mesh with round holes with a diameter of 2mm The screen is used to remove tiny impurities.
When screening flour, the screening machine can generally achieve high screening accuracy, large processing capacity, simple structure, low energy consumption, low noise, etc. At the same time, it is also a sealed operation to avoid dust diffusion and is suitable for streamlined operations.
Daily operation of screw conveyor
Screw conveyor is a common material conveying equipment used to transport granular, powdery or block materials from one location to another. In order to ensure the safety of operators, the following are some safe operation guidelines for screw conveyors:

Familiarize yourself with the operating manual: Before operating a screw conveyor, be sure to carefully read and understand the operating manual. The operating manual contains key information on installation, operation and maintenance of the equipment to ensure you can operate the equipment correctly.

Wear personal protective equipment: When operating a screw conveyor, you must wear appropriate personal protective equipment, such as hard hats, safety shoes, gloves, and goggles. These gears can effectively protect areas such as your head, body, and eyes from potential injuries.

Pay attention to electrical safety: Before operating the screw conveyor, make sure the power supply is disconnected and unplugged. When performing maintenance and cleaning work, be sure to follow relevant electrical safety operating procedures to avoid the risk of electric shock and electrical short circuit.

Avoid clogging and jamming: When the screw conveyor is running, ensure the smooth movement of materials and avoid clogging and jamming. If blockage or jamming is found, the equipment should be stopped immediately and appropriate measures should be taken to clean and resolve it.

Regular maintenance and inspection: Perform regular maintenance and inspection on the screw conveyor, including cleaning equipment, lubricating bearings, checking transmission components and fasteners, etc. Ensure the normal operation and safety performance of the equipment.

Stay alert while operating: When operating a screw conveyor, stay alert and focused. Avoid distractions or careless touching of your device to prevent accidents.

Emergency Stop Device: Screw conveyors should be equipped with emergency stop devices to quickly stop the equipment in an emergency. Operators should be familiar with the location and use of emergency shutdown devices and ensure their normal operation.

Please note that the above are only some common screw conveyor safety operation guidelines. Specific safety requirements may vary depending on the equipment model and usage environment. Therefore, before operating a screw conveyor, it is recommended that you read the equipment's operating manual and relevant safety regulations in detail and follow the guidance and recommendations provided by the manufacturer.
Working principle of linear vibrating screen
Working principle: When the two vibrating motors rotate synchronously and reversely, the excitation force generated by their eccentric blocks counteracts each other in the direction parallel to the motor axis, and is superimposed into a resultant force in the direction perpendicular to the motor axis. Therefore, the motion track of the motor is a straight line, and the two motor axes have an inclination angle to the screen surface. Under the combined force of the excitation force and the self-gravity of the material, the material moves forward in a straight line in a jumping manner on the screen surface, So as to achieve the purpose of screening, screening and grading of materials.
The vibration of the vibrating motor is used as the vibration source to make the material be thrown up on the screen and move forward in a straight line. The material evenly enters the feed inlet of the screening machine from the feeder, and generates several specifications of materials on the screen and under the screen through the multi-layer screen, which are discharged from their respective outlets. With low energy consumption, high output, simple structure, easy maintenance, fully closed structure, no dust overflow, automatic discharge, more suitable for assembly line operation.
High screening accuracy, large processing capacity, simple structure, low energy consumption, low noise, long service life of screen, good sealing, few dust spillage, convenient maintenance, and can be used for automatic operation in assembly line production.
Applicable industries
It is widely used in screening dry powder or granular materials in chemical, food, plastics, medicine, metallurgy, glass, building materials, grain, fertilizer, abrasive, ceramics and other industries.
According to customer requirements and screening materials, we recommend 304 stainless steel linear screen to meet the screening requirements of food and also play a role in transportation.
Can a rotary vibrating screen remove impurities from cassava flour?
Yes, rotary vibrating screens can be used to remove impurities from cassava flour. The rotary vibrating screen is a common screening equipment that uses rotation and vibration to screen and separate raw materials on the screen. It can effectively remove impurities in cassava flour, such as wood chips, stones, fibers, etc.

When using a rotary vibrating screen to remove impurities from cassava flour, it is necessary to select an appropriate screen aperture to ensure that the impurities are effectively separated, while the cassava flour remains on top through the screen. According to the characteristics and requirements of cassava flour, selecting the appropriate screen aperture can achieve the removal of impurities of different particle sizes.

At the same time, adjusting the vibration parameters of the rotary vibrating screen, such as vibration frequency and amplitude, can affect the impurity removal effect. Appropriate vibration parameters can improve screening efficiency and separation effects and ensure the purity of cassava flour.

It should be noted that when using a rotary vibrating screen to remove impurities, attention should be paid to the cleaning and maintenance of the equipment, and the screen mesh and screen frame should be cleaned regularly to avoid accumulated tapioca flour and impurities from affecting the screening effect. In addition, operators should strictly follow operating specifications to ensure personal safety.

In summary, the rotary vibrating screen can be used to remove impurities from cassava flour. By selecting the appropriate screen aperture and adjusting the vibration parameters, the impurities in cassava flour can be effectively removed and the quality and purity of cassava flour can be improved.
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