A multi-barrel molecular sieve runner intermittent circulation dehumidification dryer

Abstract

The invention discloses a multi-barrel molecular sieve wheel intermittent circulation dehumidification dryer, which comprises a multi-barrel molecular sieve wheel and an intermittent driving mechanism. The multi-barrel molecular sieve runner includes a top cover, a bottom cover and at least three dehumidification barrels, each of which is filled with granular molecular sieve desiccant; the intermittent drive mechanism includes a rotating shaft capable of intermittent rotation, a driven wheel, and a driving wheel with a lever , intermittent motor and position sensor, and the dehumidification bucket is evenly arranged on the outer periphery of the rotating shaft and fixedly connected with the rotating shaft. After adopting the above structure, each dehumidification barrel can be driven by the rotating shaft to perform intermittent regeneration-cooling-processing cycle work, which can make the air in the working circuit reach a lower dew point, and the dew point is stable and the fluctuation range is small. And the range can be adjusted. At the same time, the granular molecular sieve desiccant has sufficient regeneration, high energy utilization rate, and small equipment footprint. In addition, the regenerative cooling does not introduce outside air, and the regenerative waste heat is reused to heat the processed materials, saving energy.

Description

technical field [0001] The invention relates to a dehumidification dryer, in particular to a multi-barrel molecular sieve runner intermittent cycle dehumidification dryer. Background technique [0002] Plastic particles Undried plastic particles usually contain a certain amount of moisture, especially engineering plastic particles are particularly easy to absorb moisture. If the moisture content of the material is not controlled within a certain range, it will have a great impact on the subsequent injection molding, and there will be fireworks on the surface of the molded part. Bubble strips, silver wires, pores, and reduced mechanical properties. Therefore, in the early stage of plastic molding, a dehumidification dryer is generally used to form a dry air flow with a certain temperature and a low dew point to remove the moisture contained in the plastic particles. The moisture is discharged into the air under the state, and the dehumidification dryer uses this principle to...

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Problems solved by technology

[0007] Therefore, the ceramic honeycomb structure is not suitable for the treatment of materials requiring stable low dew point

[0008] 2. The regeneration temperature is not high, and the regeneration is not sufficient

[0009] 3. Severe cross wind inside the honeycomb runner, insufficient regeneration of moisture absorbent

[0010] 4. The honeycomb is porous, the regeneration wind is easy to penetrate, and the heat loss is large

[0012] 1. The air in the working circuit of the machine can reach a lower dew point, but the dew point is not stable and fluctuates greatly, so it is not suitable for occasions that require a stable dew point

[0013] 2. The pipeline is complex, and the machine work requires complex control logic

[0014] 3. The residual heat generated by the regeneration of the granular molecular sieve desiccant will be wasted; in addition, more cooling water is required to consume energy during drying; the energy is greatly lost during the transfer of the processed materials

4. The weight of the machine is large and the space requirement is large, so it is not suitable for direct connection with the plasticizing equipment below

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