CN214501970U

CN214501970U - Melt and spout polypropylene granule drying device

Info

Publication number: CN214501970U
Application number: CN202120678502.5U
Authority: CN
Inventors: 杨文峰; 沈彬; 赵伟忠
Original assignee: Shanghai Gulf Petrochemical Co ltd
Current assignee: Shanghai Gulf Petrochemical Co ltd
Priority date: 2021-04-01
Filing date: 2021-04-01
Publication date: 2021-10-26
Anticipated expiration: 2031-04-01

Abstract

The application relates to a melt-blown polypropylene granule drying device, it includes a stoving section of thick bamboo and is used for carrying out the stoving subassembly of drying to the polypropylene granule, the stoving subassembly includes that the spiral coils at the defeated tuber pipe of a stoving section of thick bamboo inner wall and is used for providing the air feed spare of drying with the wind, be provided with at least one air-out pipe on the defeated tuber pipe, the spiral direction interval setting of air-out pipe along defeated tuber pipe. This application has the effect that improves drying effect.

Description

Melt and spout polypropylene granule drying device

Technical Field

The application relates to the field of dryers, in particular to a drying device for melt-blown polypropylene particles.

Background

The melt-blown polypropylene particles are a semi-crystalline thermoplastic plastic, have high impact resistance, strong mechanical properties and high resistance to corrosion caused by various organic solvents and acids and bases, and are widely applied in the industry.

Chinese patent publication No. CN209580166U discloses a plastic particle dryer, which includes a drying cylinder, a fan and a plastic particle collecting cylinder, wherein an air outlet of the fan is communicated with the drying cylinder through a pipeline, a heater is disposed on an outer surface of the pipeline, an air outlet of the drying cylinder is communicated with an air inlet of the plastic particle collecting cylinder, an air outlet of the plastic particle collecting cylinder is communicated with an air inlet of the fan, the fan is provided with an air supplement inlet, air blown out by the fan is heated by the heater and then enters the drying cylinder, and the air is discharged from the air outlet of the drying cylinder and then enters the fan through the plastic particle collecting cylinder, so as to recycle hot air.

Aiming at the related technology, hot air enters the drying cylinder from the air inlet of the drying cylinder and is discharged from the air outlet of the drying cylinder, so that the plastic particles are not uniformly dried, and the inventor thinks that the defect of poor drying effect exists.

SUMMERY OF THE UTILITY MODEL

In order to improve the stoving effect of drying cylinder, this application provides a melt-blown polypropylene granule drying device.

The application provides a melt-blown polypropylene granule drying device adopts following technical scheme:

the utility model provides a melt and spout polypropylene granule drying device, includes a stoving section of thick bamboo and is used for carrying out the stoving subassembly of drying to the polypropylene granule, the stoving subassembly includes that the spiral coils at the defeated tuber pipe of a stoving section of thick bamboo inner wall and is used for providing the air feed spare of drying with the wind, be provided with at least one air-out pipe on the defeated tuber pipe, the spiral direction interval setting of air-out pipe along defeated tuber pipe.

Through adopting above-mentioned technical scheme, through will going out tuber pipe spiral setting on defeated tuber pipe to the stoving that the spare provides with the air feed is even blows to the stoving section of thick bamboo in, thereby even polypropylene granule to in the section of thick bamboo of drying is dried, and the stoving effect is better.

Optionally, the air outlet pipe is arranged obliquely downwards.

Through adopting above-mentioned technical scheme, through will going out the slope of tuber pipe and set up downwards, can reduce the polypropylene granule and get into the intraductal possibility of air-out to reduce the influence that the polypropylene granule led to the fact the air-out of tuber pipe.

Optionally, a filter screen is arranged on the air outlet pipe.

Through adopting above-mentioned technical scheme, through setting up the filter screen, further reduce the polypropylene granule and get into and cause the obstructed possibility to air-out pipe in the air-out pipe.

Optionally, a vibration motor is arranged on the drying cylinder.

Through adopting above-mentioned technical scheme, the granule card of minor diameter is on the filter screen in the polypropylene granule, starts vibrating motor, and the tiny granule of card on the filter screen drops from the filter screen under the vibration effect to clear up the filter screen.

Optionally, a stirring assembly for stirring the polypropylene particles is arranged on the drying cylinder.

Through adopting above-mentioned technical scheme, can stir the polypropylene granule in the section of thick bamboo of drying through setting up the stirring subassembly, dry the polypropylene granule in the stirring, the stoving effect is better.

Optionally, the stirring assembly includes a stirring blade for stirring and a driving member for driving the stirring blade to stir.

Through adopting above-mentioned technical scheme, start the driving piece so that the stirring leaf rotates, stir the polypropylene granule in the section of thick bamboo of drying, easy operation.

Optionally, the stirring blade is rotatably installed on the drying cylinder, the stirring blade is in a spiral blade shape, and the stirring blade rotates in a direction opposite to the spiral direction of the stirring blade.

Through adopting above-mentioned technical scheme, through setting up the stirring leaf into spiral blade form, and the rotation direction when the stirring leaf rotates is opposite with self spiral direction, and the stirring leaf can make the polypropylene granule remove along the direction with stirring leaf rotation direction vertically at the stirring in-process to make the stirring more even, thereby improve the stoving effect.

Optionally, a heat insulation layer is arranged outside the drying cylinder.

Through adopting above-mentioned technical scheme, through setting up the heat preservation outside the drying cylinder to reduce the scattering and disappearing of heat in the drying cylinder, accelerate the stoving speed, thereby improve the stoving effect.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the air outlet pipe is spirally arranged on the air conveying pipe, so that the drying air provided by the air supply part is uniformly blown into the drying cylinder, the polypropylene particles in the drying cylinder are uniformly dried, and the drying effect is good;

2. the air outlet pipe is obliquely arranged downwards, and the filter screen is arranged on the air outlet pipe, so that the possibility that the polypropylene particles block the air outlet pipe is reduced;

3. through setting up the stirring subassembly, rotation direction when and stirring leaf rotate is opposite with self spiral direction to make the stirring more even, thereby improve the stoving effect.

Drawings

FIG. 1 is a schematic view of the overall structure of a drying apparatus for melt-blown polypropylene particles according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a drying drum in a section view in the embodiment of the present application.

Fig. 3 is an enlarged schematic view at a in fig. 2.

Reference numerals: 1. a support frame; 2. a drying drum; 21. a discharge pipe; 22. an electric butterfly valve; 3. a drying assembly; 31. a wind delivery pipe; 32. an air supply member; 33. an air outlet pipe; 34. filtering with a screen; 35. an air inlet pipeline; 4. a vibration motor; 5. a stirring assembly; 51. stirring blades; 52. a drive member; 53. a stirring shaft; 6. and (7) an insulating layer.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a melt-blown polypropylene particle drying device. Referring to fig. 1 and 2, the melt-blown polypropylene particle drying device comprises a drying cylinder 2 for containing polypropylene particles and a drying assembly 3 for drying the polypropylene particles, wherein the drying cylinder 2 is of a cylindrical cavity structure, the drying cylinder 2 is vertically arranged, a support frame 1 is welded below the drying cylinder 2, the support frame 1 is arranged on the ground or other planes, and the support frame 1 is used for supporting the drying cylinder 2; a discharge pipe 21 is arranged below the drying barrel 2, dried polypropylene particles are discharged from the discharge pipe 21, and an electric butterfly valve 22 is arranged on the discharge pipe 21 so as to facilitate a user to control the on-off of the discharge pipe 21.

Referring to fig. 2, the drying assembly 3 includes an air delivery pipe 31 fixedly disposed inside the drying cylinder 2 and an air supply member 32 for supplying hot air, the air delivery pipe 31 is a circular pipeline, the air delivery pipe 31 is spirally wound inside the drying cylinder 2 along the axial direction of the drying cylinder 2 and is attached to the inner wall of the drying cylinder 2, an air outlet pipe 33 for discharging air to the polypropylene particles is disposed on the air delivery pipe 31 in a communicating manner, the air outlet pipe 33 is in a circular pipe shape, and the air outlet pipe 33 blows air towards the inside of the drying cylinder 2 to dry the polypropylene particles; the lower extreme of defeated tuber pipe 31 is the closed condition, and the upper end is the open mode, and air supply spare 32 chooses the air heater for use in this embodiment, and the air outlet of air heater passes through intake stack 35 intercommunication with defeated tuber pipe 31's upper end, starts the air heater and can be to carrying hot-blastly in the defeated tuber pipe 31 to the polypropylene granule in drying section of thick bamboo 2 dries.

Referring to fig. 2 and 3, in order to uniformly dry the polypropylene particles in the drying cylinder 2 by the hot air in the air delivery pipe 31, a plurality of air outlet pipes 33 are provided, and the air outlet pipes 33 are uniformly arranged at intervals along the spiral direction of the air delivery pipe 31, so that the drying effect is better; in order to reduce the possibility that polypropylene particles enter the air outlet pipe 33, a filter screen 34 is fixed on the end face of the air outlet pipe 33 far away from the air conveying pipe 31 through a bolt, the air outlet pipe 33 is obliquely and downwards arranged along the air outlet direction, the polypropylene particles are downwards accumulated in the drying cylinder 2 due to the action of gravity, the possibility of entering the air outlet pipe 33 is low, and therefore the possibility that the polypropylene particles enter the air outlet pipe 33 is reduced; fixed mounting has vibrating motor 4 on the 2 lateral walls of drying cylinder, has less granule card when in the polypropylene granule in the gap of filter screen 34, starts vibrating motor 4, because the slope of play tuber pipe 33 sets up downwards, and the polypropylene granule that blocks on the filter screen 34 drops downwards to the polypropylene granule that blocks on the filter screen 34 is cleared up, with the possibility that reduces filter screen 34 and block up.

Referring to fig. 2, in order to reduce the heat dissipation in the drying cylinder 2, a heat insulating layer 6 for insulating the drying cylinder 2 is disposed on the outer wall of the drying cylinder 2, and the heat insulating layer 6 may be made of foam plastic, aerogel felt or other heat insulating materials, in this embodiment, foam plastic is selected to reduce the heat dissipation in the drying cylinder 2 and accelerate the drying speed.

Referring to fig. 2, in order to make the drying component 3 dry the polypropylene particles more uniformly, a stirring component 5 is disposed on the drying cylinder 2, the stirring component 5 includes a stirring blade 51 and a driving component 52 for driving the stirring blade 51 to rotate, in this embodiment, the driving component 52 is a motor, the motor is fixedly mounted on the upper surface of the drying cylinder 2, an output shaft of the motor penetrates through the upper side wall of the drying cylinder 2, a stirring shaft 53 is fixedly connected to the output shaft of the motor, the stirring shaft 53 is in a round rod shape and is disposed along the axial direction of the drying cylinder 2, the stirring blade 51 is welded to the stirring shaft 53, the stirring blade 51 is in a spiral blade shape, the stirring blade 51 is disposed along the axial direction of the stirring shaft 53 in a spiral shape, a region through which the stirring blade 51 rotates is not intersected with the air outlet pipe 33, so as to prevent the stirring blade 51 from colliding with the air outlet pipe 33 in the stirring process; thereby stir polypropylene granule through motor drive (mixing) shaft 53 drive stirring leaf 51 to make the hot-blast more even polypropylene granule of drying of tuber pipe 33.

Referring to fig. 2, in order to improve the effect of gravity, polypropylene is easily piled up below a drying cylinder 2, so as to cause the incomplete drying phenomenon of polypropylene particles below the drying cylinder 2, the motor output shaft is rotated along the direction opposite to the spiral direction of the stirring blade 51, the stirring blade 51 can convey the polypropylene particles below upwards under the driving of the motor, and the polypropylene particles are repeatedly stirred in the vertical and horizontal directions, so that the polypropylene particles are dried more thoroughly by the drying component 3.

The implementation principle of the drying device for melt-blown polypropylene particles in the embodiment of the application is as follows: the user puts into stoving section of thick bamboo 2 with the polypropylene granule in, then starts air heater and motor, and the hot-blast defeated tuber pipe 31 that passes through intake stack 35 entering of air heater output then blows off through going out tuber pipe 33, and the motor drives stirring leaf 51 and rotates, stirs the polypropylene granule repeatedly to carry out even and thorough stoving, the stoving effect is better to the polypropylene granule in the section of thick bamboo 2 of drying.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a melt-blown polypropylene granule drying device, includes drying drum (2) and is used for drying polypropylene granule drying assembly (3), its characterized in that: drying assembly (3) include spiral coil at defeated tuber pipe (31) of a stoving section of thick bamboo (2) inner wall and be used for providing air feed spare (32) of hot-blast, be provided with at least one play tuber pipe (33) on defeated tuber pipe (31), go out tuber pipe (33) and set up along the spiral direction interval of defeated tuber pipe (31).

2. The drying device for melt-blown polypropylene granules according to claim 1, wherein: the air outlet pipe (33) is obliquely and downwards arranged.

3. The drying device for melt-blown polypropylene granules according to claim 2, wherein: and a filter screen (34) is arranged on the air outlet pipe (33).

4. The drying device for melt-blown polypropylene granules according to claim 3, wherein: and a vibration motor (4) is arranged on the drying cylinder (2).

5. The drying device for melt-blown polypropylene granules according to claim 1, wherein: and a stirring assembly (5) for stirring polypropylene particles is arranged on the drying cylinder (2).

6. The drying device for melt-blown polypropylene granules according to claim 5, wherein: the stirring assembly (5) comprises a stirring blade (51) and a driving piece (52) for driving the stirring blade (51) to stir.

7. The drying device for melt-blown polypropylene granules according to claim 6, wherein: the stirring blade (51) is rotatably arranged on the drying cylinder (2), the stirring blade (51) is in a spiral blade shape, and the stirring blade (51) rotates along the direction opposite to the spiral direction of the stirring blade.

8. The drying device for melt-blown polypropylene granules according to claim 1, wherein: and a heat insulation layer (6) is arranged outside the drying cylinder (2).