vertical agitator

Vertical mixer is a widely used mixing equipment in industries, agriculture, construction and other fields. The following is a detailed introduction about it:

Structural features:

Mixing bucket: It is usually a vertical cylindrical shape, and its material varies depending on the application scenario. For example, stainless steel may be used in the food industry to ensure hygiene, and wear-resistant metal may be used in the construction industry. There are various sizes and specifications of barrels, ranging from a few liters of capacity for small laboratories to several cubic meters of capacity for industrial production.

Mixing shaft and mixing blades: The mixing shaft is located at the center of the mixing drum and installed vertically. The mixing blade is fixed on the mixing shaft and has various shapes, commonly including blade type, spiral type, etc. Paddle type mixing blades can generate significant shear forces and are suitable for mixing materials with high viscosity; Spiral mixing blades have a good effect on lifting materials, allowing them to circulate and mix up and down in the bucket.

Transmission device: including motor, reducer, coupling, etc. The motor provides power, the reducer is used to adjust the speed to achieve the appropriate rotational speed of the mixing shaft, and the coupling connects the motor and the mixing shaft to ensure effective power transmission.

working principle:

After the motor is started, the stirring shaft is driven to rotate through the transmission device, and the stirring blades move in a circular motion accordingly. Under the action of the mixing blades, the material undergoes complex movements inside the mixing drum, including axial flow, radial flow, and circular motion. These movements cause materials to collide, shear, and diffuse with each other, thereby achieving uniform mixing. For example, when mixing concrete, materials such as cement, sand, water, etc. are carried from the bottom of the bucket to the top of the bucket by the action of the mixing blades, and then from the periphery back to the bottom of the bucket. This process repeats until a uniform concrete is formed.

classification

Classified by application field:

Industrial vertical mixer: widely used in industries such as chemical, pharmaceutical, and food. In the chemical industry, it is used to mix various chemical raw materials and requires good sealing and corrosion resistance; In the pharmaceutical industry, strict hygiene standards must be met to prevent material contamination; Vertical mixers in the food industry are used to mix flour, sauces, candy ingredients, etc., with extremely high requirements for material and cleanliness.

Agricultural vertical mixer: mainly used for mixing feed, blending various grains, feed additives, vitamins, etc. into nutritionally balanced feed. It usually needs to consider the fluidity of materials and their adaptability to materials of different particle sizes, and some even have weighing and measuring systems to ensure the accuracy of feed ratio.

Building vertical mixer: used for mixing building materials such as concrete, mortar, etc. This type of mixer requires high power and torque to handle high viscosity and high-density building materials, and must have good wear resistance, as materials such as sand and gravel can cause significant wear on the mixing drum and blades.

Classified by mixing method:

Forced vertical mixer: By applying strong shear and extrusion forces to the material through the mixing blades, the material is quickly mixed. It is suitable for mixing materials with high viscosity and coarse particles, such as dry and hard concrete used in construction.

Self falling vertical mixer: The material falls by its own weight in the mixing drum and is stirred by the mixing blades during the falling process. This stirring method is relatively gentle and suitable for stirring materials with good fluidity and fine particles, such as some powdered food ingredients.

advantage:

High mixing uniformity: By designing the mixing blades and shaft speed reasonably, the material can achieve high uniformity in a short period of time, ensuring the consistency of product quality.

Small footprint: Compared to horizontal mixers, vertical mixers utilize space in the vertical direction, occupying a relatively small footprint and having advantages in places with limited space.

Easy maintenance: The structure is relatively simple, and key components such as the mixing shaft and mixing blades are easy to inspect and replace. Moreover, the transmission device is usually located on the top or side, which is convenient for maintenance personnel to operate.

Suitable for multiple materials: It can mix materials of different particle sizes, densities, and viscosities by adjusting parameters such as the form and speed of the mixing blades.