Technical characteristics and selection principle of horizontal ribbon mixer
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1. The pulley is driven by the cycloid reducer. Compared with the high torque of the gear reducer, the elastic connection of the belt drive has the advantage of protecting the transmission components during overload.
2. The main shaft of the ribbon is connected to the flange of the drive shaft in the cylinder. It can be quickly disassembled when the type of the agitator shaft needs to be repaired or replaced. The flexible disassembly and assembly design makes the U-shaped cylinder and the two end plates completely welded, avoiding the accumulation gap generated by the large flange connection of the cylinder and reducing the residual.
3. The disconnected ribbon has a larger shearing motion on the material than the continuous ribbon, and can make the material form more eddy currents in the flow, which accelerates the mixing speed and improves the mixing uniformity.
4, the discharge form is generally a pneumatic (manual) flap valve, the arc valve is tightly embedded in the cylinder, flush with the inner wall of the cylinder, no material accumulation and mixed dead angle phenomenon, reliable edge strip seal, to ensure frequent switching No leakage.
5. The jacket can be added outside the mixing barrel, and the cooling or heating of the material can be realized by injecting a hot and cold medium into the jacket. The heating method has two modes: electric heating and heat conduction oil heating: electric heating is convenient, but the heating rate is slow, and the energy consumption is high; the heat conducting oil heating needs to be equipped with oil pan and oil guiding power, pipeline, and the investment is large, but the heating speed is fast. , low energy consumption. The cooling process can directly inject cooling water into the jacket, and the jacket has a large heat exchange area and a fast cooling rate.
6. When the ultra-fine powder is mixed, the main shaft sealing form can increase the airtight setting, and the gas powder inside and outside the cylinder can be effectively circulated.
Selection principle of horizontal ribbon mixer :
1. The horizontal mixer is selected according to the daily production volume. Because the processing time of each batch of material in the mixer is about 10 minutes, plus the time of discharging and feeding, the processing time of each batch of materials can be 15 minutes, then 4 batches can be processed continuously for 1 hour. If you choose a mixer with a throughput of 100 kg per batch, you can process 400 kg per hour. Users can choose a horizontal mixer according to their needs.
2. According to the working principle of the horizontal spiral belt mixer, the ability of the double spiral belt for stirring and mixing to push the material in the opposite direction should be substantially the same. Since the pitch of the inner spiral belt should be smaller than that of the outer spiral belt, the pitch of the inner spiral belt should be smaller than that of the outer spiral belt, and the width should be larger than the outer spiral belt, otherwise the material will be concentrated in one direction. Therefore, pay attention to this when selecting a horizontal mixer.
3. According to the design principle, the gap between the spiral belt and the casing in the spiral belt mixer can be 4 mm to 10 mm, and the material can be frictionally driven to participate in the mixing. However, since the pulverization particle size and the friction coefficient of the material are not the same, the time for the materials of the various components to participate in the mixing is different, resulting in product non-uniformity. Some manufacturers have realized this and have improved the product. One is to pay attention to the processing precision, so that the bottom gap is reduced to about 3 mm; the other is to make the position between the main shaft and the housing adjustable, and the gap between the spiral belt and the housing can be frequently adjusted according to the amount of wear. . When choosing a mixer, these two forms of product should be a good choice.
4. When choosing a horizontal spiral belt mixer, pay attention to the discharge method. You should communicate with the supplier in a timely manner to select the valve form that suits your process, and do not choose the discharge form of the side port. The reason is: when the mixer completes the mixing and mixing in the specified time, the release of the Zui in a short time can ensure the uniformity of the material; if the side belt spiral belt is gradually released, the delay time will not reach the expected productivity, It is the material that has reached the good uniformity of the Zui. Excessive agitation will cause the material to be separated and destroy the uniformity, thus losing the meaning of using the horizontal mixer.
5. Use a horizontal mixer to pay attention to the order of feeding. Generally, the bulk material, such as corn flour, soybean meal, etc., is first injected, and then the small component, such as premix, is added. Note that the premix must not be fed by the screw hoist, and the disposable dumping type feeding or manual feeding can avoid the loss of the separation of the active ingredients in the premix.
6. When using a horizontal mixer , it should be fed in batches after the mixer is started. Do not stop the machine when the mixing is finished, and mix a batch after the net material is discharged. If it is started after full load, it will cause the power distance to be too large to burn the motor.