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Description of Mixer Type

Aug. 03, 2020

V Type Mixer manufacturer introduces the types of mixers.

1 Horizontal ring belt mixer

The horizontal mixer is mainly composed of body, screw shaft, transmission part and control part. The body is trough-shaped, and its cross-section has three types: 0-shaped, U-shaped and W-shaped. Among them, the U-shaped mixer is the most popular. In the U-shaped mixer, the single-shaft double screw is the most common. The inner and outer spirals of the machine are left and right spirals respectively, so that the materials are fully mixed in the mixer according to the countercurrent principle. The outer spiral blade makes the material flow in one direction along the spiral axis, and the inner spiral makes the material flow in the opposite direction, causing the material to move from one place of the pile to another in a clump, quickly reaching a rough clump. On this basis, there are more surfaces for fine, inter-particle mixing to achieve uniform mixing. The mixing time is generally 3min per batch, usually between 2-6min, so 10 batches of materials can be mixed per hour.

The advantages of the horizontal endless belt mixer are high mixing efficiency, good mixing quality, short unloading time and low residual amount, so it is widely used in feed factories. The disadvantage is that it covers a large area and large supporting power, but due to the short mixing time, the energy consumption per unit product is not high.

2Vertical mixer

The vertical mixer is mainly composed of a receiving hopper, a vertical auger, a casing, a discharge valve, a bracket and a motor drive part. The vertical mixer relies on the vertical auger to disperse materials to achieve mixing. Because it mainly relies on the principle of diffusion for mixing, the mixing time is longer. Generally, the mixing time of a batch of feed is 15-20 minutes. The advantages of the vertical mixer are the small supporting power and small occupied area. It can be used with other equipment or used alone. The disadvantage is that the mixing time is long, the mixing quality is poor, the production efficiency is low, and there are more residual materials in the machine after unloading. Therefore, it is hardly used in large and medium-sized feed mills, nor can it be used to process premixed feed. It is generally used for dry powder mixing in small livestock farm feed processing workshops or units.

V Type Blender

V Type Blender

3 Double shaft paddle mixer

The dual-shaft paddle mixer is mainly composed of a body, a rotor, a discharge mechanism, a transmission part and a control part. The machine body is a double trough shape with a w-shaped cross section. There are two feed openings on the top of the machine body and a discharge opening at the bottom of the two troughs. The rotor of the machine is composed of two shafts installed side by side and rotating in opposite directions and blades installed on them. Each group of blades has two blades, and the blades are generally installed on the shaft at a 45 angle. The blade groups on the two shafts are staggered, and the wheelbase is less than the sum of the lengths of the two blades. When the rotor is running, the ends of the corresponding blades on the two shafts form a cross overlap in the central part of the body, but they will not collide with each other. When the mixer is working, the materials in the machine present a multi-directional compound movement state:

One is convective mixing along the rotor axis;

The second is shear mixing, that is, due to the velocity gradient distribution in the materials, shear surfaces are formed in the materials, so that the materials collide and slide with each other, thereby forming shear mixing;

The third is special diffusion and mixing. In the middle of the body, the area of the movement overlap formed by the two rotors rotating in opposite directions. Due to the opposite movement of the two rotors, the material in this area is twice as strong as the other areas by the rotating blades. the above. It is characterized by light and gentle mixing effect, low friction, no segregation of the mixture, and no damage to the original physical state of the material. This kind of mixer is mainly used for the addition of molasses and the mixing of mineral trace elements, with high mixing uniformity.

4 Conical planetary mixer

The conical planetary mixer is mainly composed of a casing, a spiral working part, a crank, a revolution and rotation motor, and a transmission. When the crank rotates, through the transmission of the crank and the gear, the screw shaft rotates while revolving around the conical cylinder, causing the material to not only mix up and down, but also to continuously rotate around the cylinder and mix in the horizontal direction. Because the shell is tapered, the moving speeds of the upper and lower parts are different, and the moving speeds of the same height are also different, which causes relative movement between materials. Therefore, the mixer is mainly for diffusion mixing when it works, and the mixing effect is strong, the mixing time is short, and the final mixing quality is better. In addition, the particle size, density, scatter of the mixture and the full coefficient of the material in the mixing cylinder will not have a significant impact on the normal operation of the mixer. Its advantages are strong mixing effect, short mixing time, can quickly reach a statistically complete mixing state, and low residual amount, which is more suitable for the processing of pre-mixed feed. The disadvantage is that the price is high and the scope of application is limited.

5 v type mixer

V type blender is one of the representative models of rotary drum mixer. The material rotates with the barrel. The movement trajectory in the barrel is two symmetrically intersecting approximate elliptical trajectories. The materials are separated and aggregated alternately and repeatedly in the machine. The mixing is mainly carried out in the reselection area of the two trajectories. The mixing is mainly based on diffusion and scissors. The disadvantage is that it covers a large area and is not easy to install. The advantage is that the mixing time is short and can effectively prevent agglomeration. In feed mills, it is mostly used for dilution and premixing of additives.

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