Type selection principle of horizontal screw belt mixer

Type selection principle of horizontal screw belt mixer:

At present, many users many choices in terms of powder/powder mixing equipment domestic original vertical cone mixing equipment, but experts suggest that there are many shortcomings due to the vertical cone mixer, repair rate is very high, so in powder/powder or granular materials mixed, should choose horizontal mixer, the mixing efficiency of the equipment are high, mixing of good quality and discharge time is short, less residue. However, the following points should be paid attention to when choosing and using horizontal mixer:

1. Select bench mixer according to daily production. Because the processing time of each batch of materials in the mixer is about 10 minutes, plus the time of discharging and feeding, the processing time of each batch of materials can be calculated as 15 minutes, so 4 batches of materials can be continuously processed in 1 hour. If you choose a mixer with a processing capacity of 100kg per batch, it can process 400kg per hour. Users can choose horizontal mixer according to their own needs.

2. According to the working principle of horizontal spiral belt mixer, the ability of the double spiral belt used for stirring and mixing to push the material in opposite direction should be basically the same. Since the pitch of the inner spiral belt should be equal to the pitch of the outer spiral belt, the width of the inner spiral belt should be greater than that of the outer spiral belt in order to achieve the same ability of pushing materials, otherwise the materials will be concentrated in one direction. Therefore, this point should be paid attention to when choosing horizontal mixer.

3. According to the design principle, the gap between the spiral belt and the shell in the spiral belt mixer can be 4 mm ~ 10 mm, and the materials can be driven to participate in the mixing by friction force. However, due to the different particle size and friction coefficient of materials, the mixing time of various components of materials is not the same, resulting in uneven product. At present some manufacturers have realized this point and made improvements to the product. One is to pay attention to the machining accuracy, so that the bottom gap is reduced to about 3 mm; The other is to make the position between the spindle and the shell adjustable form, according to the amount of wear can often adjust the gap between the spiral belt and the shell. These two forms of product should be the best choice when choosing a mixer.

4. Choose horizontal spiral belt mixer to pay attention to the way of discharging. Should communicate with the supplier in time to choose the valve form suitable for their own process, at the same time do not choose the side outlet form. The reason is that: when the mixer finishes mixing and mixing within the specified time, the homogeneity of the material can be guaranteed by discharging it once in a short time. If the side mouth spiral belt is gradually released, one is to delay the time and not reach the expected productivity, and the other is that the material has reached the best uniformity, excessive stirring will make the material segregation instead, destroy the uniformity, so as to lose the significance of choosing horizontal mixer.

5. Pay attention to the order of feeding when using horizontal mixer. It is generally cast aniseed first, such as corn flour, soybean meal powder, etc., and then cast group material, such as premix. Pay attention to the premix must not screw hoist feeding, the application of one-time tipping bucket feeding, or manual feeding, so as to avoid the segregation loss of the active components in premix.

6. When using horizontal mixer, feed batch by batch after the mixer is started. Do not stop the machine at the end of mixing and discharging, and then mix a batch of net material. If you start again after full load, it will cause the power distance is too large and the motor will be burned.

In conclusion, the selection of a suitable horizontal mixer and its proper use will significantly improve the quality of the mixture and will soon reflect a positive effect in the production process. If we can further master the technology of self-mixing, we can greatly reduce the material cost and increase the profit.

Discharging way

The powder material adopts pneumatic open door structure, which has the advantages of fast discharging and no residual. High fineness material or semi-fluid material adopts manual butterfly valve or pneumatic butterfly valve. Heating or cooling jacket is available. There are two heating modes: electric heating and thermal oil heating. Cooling process can directly inject cooling water into the jacket, the jacket heat exchange area is large, cooling speed is fast. Small type mixer adopts reducer direct connection mode, simple structure, high reliability and convenient maintenance. Large size mixer is driven by belt pulley to drive cycloidal reducer. The elastic connection of belt transmission has the advantage of protecting transmission parts in overload.

Scope of application

Applied to pesticides, veterinary drugs, food, chemicals, biology, aquaculture, ceramics, refractories, plastics, fertilizer and other solid-solid (powder and powder) solid-slurry (powder and glue slurry) mixing, but also especially suitable for viscous material mixing.