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Resin pellet dryer

A drying device and agglomeration technology, applied in the direction of drying solid materials, drying solid materials without heating, drying, etc., can solve the problems of mutual adhesion of agglomerates, low efficiency, and inability to discharge.

Inactive Publication Date: 2005-07-13
STAR SEIKI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the current drying device must have a large space because the funnel is made of a large cylindrical shape.
If such a large hopper exists around the molding machine, the arrangement of various equipment in the factory may become inefficient
Also, the granules in the funnel may adhere to each other due to the heating of the heater and cannot be discharged.
At present, although the granules are prevented from adhering to each other by mechanically vibrating the funnel, there is a problem that the drying device itself becomes larger

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] exist Figure 1 to Figure 3 Among them, the pellet drying device 1 is a device for pre-drying the pellets as the molding raw material of the plastic molding machine 3, and the pellet storage unit 5 is a plurality of pipes composed of stainless steel pipes or the like arranged in parallel in the vertical direction in the horizontal direction. (Hereinbelow, it is called a horizontal pipe) 7 is connected and formed, and each connection part 7a provided in both ends is mutually connected in a different shape, and it communicates in a turn-back shape.

[0017] A screw feeder 11 driven by an electric motor 9 and made of elastically deformable material such as spring steel is arranged in each horizontal pipe 7 . Each screw feeder 11 has a fixed end 11a fixed to the rotating shaft 9a of the electric motor 9 at one end thereof, and the front end 11b side of the other end is freely supported. Furthermore, each screw feeder 11 has a hollow portion 11c whose entire center is hollo...

Embodiment 2

[0033] exist Figure 4 to Figure 7 Among them, the aggregate storage unit 53 constituting the aggregate drying device 51 of this embodiment is provided in a nearly horizontal state or a state inclined at a predetermined angle (θ) with respect to the horizontal direction, and is a pipe 55 ( Hereinafter referred to as inclined pipe) composition. The above-mentioned inclination angle (θ) is set as an angle descending by several degrees from the pellet introduction part 81 to the pellet discharge part 87 .

[0034] A screw feeder 61 connected to the electric motor 59 is provided on the inclined pipe 55 and rotates in a predetermined direction as the electric motor 59 is driven. That is, a fixed end 61 a is formed at one end of the screw feeder 61 , and the rotation shaft 59 a of the electric motor 59 is attached thereto. Moreover, the front end part 61b side of the screw feeder 61 is supported by the front end part 55a of the inclined duct 55 via the bearing 55b. Furthermore, t...

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PUM

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Abstract

The object of the present invention is to provide an agglomerate drying device that can effectively dry agglomerates by preventing space problems and internal agglomerates from adhering to each other. Agglomerate storage section that is connected in a continuous manner and accommodates agglomerates inside; a screw feeder that is installed in each pipeline and driven by the connected electric motor to rotate; a vacuum device that forms a predetermined vacuum pressure in the agglomerate storage section; A heater installed on each pipeline to heat the inside of the aggregate storage unit to a predetermined temperature; respectively installed on each pipeline located at the uppermost and lowermost parts of the aggregate storage unit for introducing aggregates into the aggregate storage unit or storing pellets Agglomerates in the unit are discharged and opened and closed by the actuator; a control mechanism that controls the actions of the above-mentioned actuator, electric motor and vacuum device and controls the temperature of the heater.

Description

technical field [0001] The present invention relates to a pellet drying device for pre-drying pellets as raw materials for forming plastic moldings. technical background [0002] For example, in the conventional pellet drying device disclosed in JP-A-2001-150436, a hopper-type drying device is installed on the pre-process side of a feeder that supplies pellets to a molding machine. In this drying device, the pellets thrown into the hopper are properly dried by a heater or the like, and then sent to the above-mentioned feeder. [0003] However, in the current drying device, since the funnel is formed in a large cylindrical shape, a large space is required. If such a large hopper exists around the molding machine, the arrangement of various equipment in the factory may be inefficient. Also, the aggregates in the hopper may be caused to adhere to each other due to the heating of the heater and thus be unable to be discharged. At present, although the granules are prevented f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B13/06F26B5/04F26B17/20
CPCF26B5/041F26B17/20F26B17/205B29B13/06
Inventor 冈田一三
Owner STAR SEIKI