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Principle of tube filling and sealing machine

Release time:2020-07-03 16:53viewed:times
  The tube filling and sealing machine is determined by many parameters. It is impossible to describe a tube filling and sealing machine with any single parameter. Shaft power (P), blade discharge (q), head (H), blade diameter (d) and filling speed (n) are five basic parameters to describe a tube filling and sealing machine.
Principle of tube filling and sealing machine
  The discharge volume of the blade is directly proportional to the flow standard of the blade itself, the first power of the blade speed and the third power of the blade diameter. The shaft power consumed by filling is directly proportional to the specific gravity of the fluid, the power standard of the blade itself, the third power of the rotating speed and the fifth power of the blade diameter. Under certain power and blade form, the discharge volume (q) and head (H) of the blade can be adjusted by changing the matching of the diameter (d) and speed (n) of the blade, that is to say, the tube filling and sealing machine with large-diameter blade and low-speed (to ensure that the shaft power is constant) can produce higher flow effect and lower head, while the small-diameter blade with high-speed can produce higher head and pressure Low mobility.
  In the filling tank, the only way to make the micro clusters collide with each other is to provide enough shear rate. From the perspective of filling and sealing mechanism, it is because of the existence of fluid velocity difference that the fluid layers are mixed with each other. Therefore, the filling process always involves the fluid shear rate lhhaa620. Shear stress is a kind of force, which is the real reason for bubble dispersion and droplet breakage in filling application. It must be pointed out that the shear rate of each point in the whole stirred tank is not the same.
  The experimental results show that the maximum shear rate and the average shear rate increase with the increase of rotating speed when the diameter of the blade is fixed. But when the rotating speed is fixed, the relationship between the maximum shear rate and the average shear rate and the blade diameter is related to the pulp type. When the rotating speed is fixed, the maximum shear rate of radial blade increases with the increase of blade diameter, while the average shear rate is independent of blade diameter. These concepts about the shear rate of the blade area need special attention in the design of the reduction and enlargement of the tube filling and sealing machine. Compared with the large slot, the small slot tube filling and sealing machine has the characteristics of high speed (n), small blade diameter (d) and low tip speed (nd), while the large slot tube filling and sealing machine has the characteristics of low speed (n), large blade diameter (d) and high tip speed (nd).

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