CN110068212B - Drying device is used in nanofiber production - Google Patents

Drying device is used in nanofiber production Download PDF

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Publication number
CN110068212B
CN110068212B CN201910341442.5A CN201910341442A CN110068212B CN 110068212 B CN110068212 B CN 110068212B CN 201910341442 A CN201910341442 A CN 201910341442A CN 110068212 B CN110068212 B CN 110068212B
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drying
layer block
pipe
box body
cavity
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CN110068212A (en
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崔建中
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Yinghongnami Corp
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Yinghongnami Corp
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/06—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement with movement in a sinuous or zig-zag path
    • F26B13/08—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement with movement in a sinuous or zig-zag path using rollers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
    • F26B21/04—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside the drying enclosure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B23/00—Heating arrangements
    • F26B23/04—Heating arrangements using electric heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/28—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Textile Engineering (AREA)
  • Microbiology (AREA)
  • Sustainable Development (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

A drying device for nanofiber production comprises a drying box body, a box cover plate, a drying layer block, a drying column, a conveying roller, a transverse heating pipe, a longitudinal heating pipe, a lateral heating pipe, a cavity air outlet pipe, an air return pipe, a cavity connecting pipe, a ventilator and an exhaust pipe; the box cover plate is arranged on one side of the drying box body, and the drying layer blocks are arranged on two sides in the drying box body and are arranged in a staggered manner; the drying layer block is in a hollow structure to form a drying layer block cavity; the drying column is arranged on the top surface of the drying layer block; the conveying roller is arranged on one side of each drying layer block; the horizontal heating pipe is arranged on the top surface of the drying layer block; the longitudinal heating pipe is arranged on one side of the drying layer block; the side heating pipes are arranged at two sides of each drying column; the return air pipe is communicated with the cavity air outlet pipe through a cavity connecting pipe; the ventilator is arranged on the cavity connecting pipe. The drying device has the advantages of small overall structure volume, high drying speed and high drying efficiency by performing drying through radiation heat exchange and convection heat exchange, and is suitable for drying the nano-fiber yarns.

Description

Drying device is used in nanofiber production
Technical Field
The invention belongs to the field of nanofiber production equipment, and particularly relates to a drying device for nanofiber production.
Background
By nanomaterials are meant materials that have at least one dimension in three dimensions that is in the nanometer range (0.1-100nm) or that consist of them as a basic unit, which corresponds approximately to the dimension of 10-100 atoms closely arranged together. Among nanomaterials, nanofibers mean ultra-fine fibers having a fiber diameter of less than 1000 nanometers. There are many methods for producing nanofibers, such as drawing, template synthesis, self-assembly, microphase separation, electrospinning, and the like. Among them, the electrospinning method is widely used because of its advantages such as simple operation, wide application range, and relatively high production efficiency.
After the nano-fiber produced by the electrostatic spinning manufacturing process is extended into fiber filaments, the fiber filaments are heated and dried, so that the surface of the fiber filaments has higher tension, the fiber filaments can have higher tensile strength, and the mechanical strength and ductility of the nano-fiber filaments are improved. The existing drying technology has various equipment forms and has the following technical defects: the drying equipment mostly adopts a single heat conduction form of thermal convection or thermal radiation to dry the fiber yarns, and the drying uniformity is poor; the drying device has large structure volume, does not fully utilize the internal volume of the drying device, has low drying efficiency, and is not suitable for drying the nanofiber tows with small diameters.
Disclosure of Invention
In order to solve the existing problems, the invention discloses a drying device for producing nano fibers, which has the following specific technical scheme: a drying device for nanofiber production comprises a drying box body, a box cover plate, a drying layer block, a drying column, a conveying roller, a transverse heating pipe, a longitudinal heating pipe, a lateral heating pipe, a cavity air outlet pipe, an air return pipe, a cavity connecting pipe, a ventilator and an exhaust pipe; the drying box body is in a cuboid shape and is of a hollow structure, a drying box body inlet is formed in the bottom end of one side of the drying box body, the box cover plate is arranged on one side of the drying box body, and a drying box body outlet is formed in the bottom end of the box cover plate; the box cover plate is inserted into the drying box body clamping blocks to realize the connection of the box cover plate and the drying box body; the drying layer blocks are arranged on two sides in the drying box body in a staggered manner, and two sides of each drying layer block are respectively and fixedly connected with the inner wall of the drying box body; a cavity is enclosed between the drying layer block and the inner wall of the drying box body to form a drying box channel, and the section of the drying box channel is S-shaped; the drying layer block is of a hollow structure, and a drying layer block cavity is formed; the bottom end of the cavity of the drying layer block at the bottom layer is provided with a cavity air inlet; the drying column is arranged on the top surface of the drying layer block, the bottom end of the drying column is vertically and fixedly connected with the top surface of one layer of the drying layer block, the top end of the drying column is vertically and fixedly connected with the bottom surface of the other layer of the drying layer block, the center of the drying column is hollow to form a drying column through hole, and two ends of the drying column through hole are communicated with the drying layer block cavity; the conveying rollers are arranged on one side of each drying layer block and symmetrically arranged, and two ends of each conveying roller are rotatably connected with the drying box body through bearings; the transverse heating pipe is arranged on the top surface of the drying layer block and fixedly connected with the drying layer block through a fastener; the longitudinal heating pipe is arranged on one side of the drying layer block and is fixedly connected with the drying box body through a fastener; the side heating pipes are arranged on two sides of each drying column, and each side heating pipe is fixedly connected with the drying column through a fastener; the cavity air outlet pipe is arranged on the top surface of the drying layer block at the top layer, the cavity air outlet pipe is fixedly connected with the drying layer block, and the bottom end of the cavity air outlet pipe is communicated with the cavity of the drying layer block; the air return pipe is arranged on one side of the drying box body, and the air return pipe is in through connection with the cavity air outlet pipe through a cavity connecting pipe; the ventilator is arranged on the cavity connecting pipe; the exhaust pipe set up in stoving box top surface, the exhaust pipe with the perpendicular fixed connection in stoving box bottom surface, the exhaust pipe bottom with stoving case passageway link up.
Furthermore, the number of the drying layer blocks is four, each drying layer block is of a cuboid structure, and the top angle of each drying layer block is of an arc-shaped structure.
Furthermore, the number of the drying columns arranged on each layer of drying layer block is four, and the drying columns are symmetrically arranged; each drying column is of a cylindrical structure with two wide ends and a narrow middle part.
Furthermore, the number of the transverse heating pipes arranged on each drying layer block is three, the arrangement direction of each transverse heating pipe is consistent with that of the drying layer block, and each transverse heating pipe is arranged on two sides of each drying column.
Furthermore, the number of the longitudinal heating pipes arranged on each side of the drying box body is three, and the position of each longitudinal heating pipe is matched with that of each transverse heating pipe.
Furthermore, the number of the side heating pipes arranged on each drying column is two.
Furthermore, the section of the return air pipe is of an L-shaped structure.
Further, the cross section of the cavity connecting pipe is in an Contraband-shaped structure.
Furthermore, the section of the exhaust pipe is of a structure with a wide lower part and a narrow upper part.
Further, the fastener is one or more of a rivet, an expansion screw, a bolt, a nut, a screw, and a self-tapping screw.
The working principle of the invention is as follows:
when the fiber yarn drying device is used, fiber yarns enter the drying box body through the inlet of the drying box body, pass through the drying box channel and are wound outside each conveying roller, and when the fiber yarns are sequentially conveyed upwards to the top end of the drying box body through the conveying pipes, the box cover plate is inserted into the drying box body clamping block, and the fiber yarns penetrate out through the outlet of the drying box body; through start-up heating horizontal heating pipe, indulge heating pipe and side heating pipe, when the cellosilk passes through between the two-layer stoving layer piece, horizontal heating pipe is from the bottom to cellosilk radiant heating, and the side heating pipe is through at both sides to cellosilk radiant heating, and when the cellosilk passes through stoving layer piece one side, indulges the heating pipe and to cellosilk radiant heating in one side.
Outside cold air of stoving case gets into the stoving box through stoving box import, some air gets into in the stoving layer piece cavity through the cavity air intake, the air upwards flows because of heating self density diminishes, with the mechanical ventilation effect of ventilation blower, the air upwards flows through stoving post through-hole in every stoving post, until going out the tuber pipe through the cavity and discharging, after that through the cavity connecting pipe, the return air hose loopback to stoving box bottom one side, slowly blow off the air current, drive the interior airflow flow of stoving case passageway, after the air current carries out the heat convection with the cellosilk, discharge through the exhaust pipe. The invention has the beneficial effects that:
the invention can carry out multi-angle and omnibearing radiant heating on the carbon fiber wire by arranging the transverse heating pipe, the longitudinal heating pipe and the side heating pipe, so that the surface of the carbon fiber wire is uniformly radiated and dried; meanwhile, the drying box channel is in low-speed air flow through the mechanical ventilation effect of the ventilator, so that the purpose of convection heat exchange on the surface of the fiber yarns is achieved. The device of the invention achieves the purpose of fully drying the fiber yarns by carrying out radiation heat exchange and convection heat exchange on the surfaces of the fiber yarns, and has high drying speed and high efficiency.
The device has a compact structure and a small overall structure volume, and the fiber is coiled in the drying box body through the conveying roller and matched with the arrangement of a plurality of heating pipes, so that the fiber can achieve a strong drying effect through a short stroke; meanwhile, the special structural form arrangement in the device is matched, so that the airflow circulation stroke in the drying box body is in a staggered circulation form of inner circulation and outer circulation of the drying layer block, and the condition that the heat is utilized to the maximum extent when the drying box body is always in an airflow circulation drying state is guaranteed. Finally, when the device is in a small size, the heat exchange efficiency of the device can be further improved, and the device is suitable for drying the nanofiber tows with small diameters.
Drawings
Fig. 1 is a schematic sectional structure of the present invention.
FIG. 2 is a schematic view of a partial structure of a drying layer block according to the present invention.
FIG. 3 is a schematic view of the partial installation of the drying box and the cover plate.
List of reference numerals: the drying device comprises a drying box body 1, a drying box body inlet 1-1, a drying box body clamping block 1-2, a drying box channel 1-3, a box cover plate 2, a drying box body outlet 2-1, a drying layer block 3, a drying layer block cavity 3-1, a cavity air inlet 3-2, a drying column 4, a drying column through hole 4-1, a conveying roller 5, a transverse heating pipe 6, a longitudinal heating pipe 7, a side heating pipe 8, a cavity air outlet pipe 9, an air return pipe 10, a cavity connecting pipe 11, a ventilator 12 and an exhaust pipe 13.
Detailed Description
In order to make the technical scheme of the invention clearer and clearer, the invention is further described with reference to the accompanying drawings, and any scheme obtained by carrying out equivalent replacement and conventional reasoning on the technical characteristics of the technical scheme of the invention falls into the protection scope of the invention. The fixed connection, the fixed arrangement and the fixed structure mentioned in the embodiment are known technologies known to those skilled in the art, such as gluing, welding, screwing, bolt-nut connection, riveting and the like. The transverse heating pipe, the longitudinal heating pipe and the side heating pipe mentioned in the invention are carbon fiber heating pipes, are products available in the market, and the structural principle of the carbon fiber heating pipes is well known by the technical skill of the person in the field.
The drying device for producing the nano fibers comprises a drying box body, a box cover plate, a drying layer block, a drying column, a conveying roller, a transverse heating pipe, a longitudinal heating pipe, a lateral heating pipe, a cavity air outlet pipe, an air return pipe, a cavity connecting pipe, a ventilator and an exhaust pipe; the drying box body is in a cuboid shape and is of a hollow structure, a drying box body inlet is formed in the bottom end of one side of the drying box body, the box cover plate is arranged on one side of the drying box body, and a drying box body outlet is formed in the bottom end of the box cover plate; the box cover plate is inserted into the drying box body clamping blocks to realize the connection of the box cover plate and the drying box body; the drying layer blocks are arranged on two sides in the drying box body in a staggered manner, and two sides of each drying layer block are respectively and fixedly connected with the inner wall of the drying box body; a cavity is enclosed between the drying layer block and the inner wall of the drying box body to form a drying box channel, and the section of the drying box channel is S-shaped; the drying layer block is of a hollow structure, and a drying layer block cavity is formed; the bottom end of the cavity of the drying layer block at the bottom layer is provided with a cavity air inlet; the drying column is arranged on the top surface of the drying layer block, the bottom end of the drying column is vertically and fixedly connected with the top surface of one layer of the drying layer block, the top end of the drying column is vertically and fixedly connected with the bottom surface of the other layer of the drying layer block, the center of the drying column is hollow to form a drying column through hole, and two ends of the drying column through hole are communicated with the drying layer block cavity; the conveying rollers are arranged on one side of each drying layer block and symmetrically arranged, and two ends of each conveying roller are rotatably connected with the drying box body through bearings; the transverse heating pipe is arranged on the top surface of the drying layer block and fixedly connected with the drying layer block through a fastener; the longitudinal heating pipe is arranged on one side of the drying layer block and is fixedly connected with the drying box body through a fastener; the side heating pipes are arranged on two sides of each drying column, and each side heating pipe is fixedly connected with the drying column through a fastener; the cavity air outlet pipe is arranged on the top surface of the drying layer block at the top layer, the cavity air outlet pipe is fixedly connected with the drying layer block, and the bottom end of the cavity air outlet pipe is communicated with the cavity of the drying layer block; the air return pipe is arranged on one side of the drying box body, and the air return pipe is in through connection with the cavity air outlet pipe through a cavity connecting pipe; the ventilator is arranged on the cavity connecting pipe; the exhaust pipe set up in stoving box top surface, the exhaust pipe with the perpendicular fixed connection in stoving box bottom surface, the exhaust pipe bottom with stoving case passageway link up.
Furthermore, the number of the drying layer blocks is four, each drying layer block is of a cuboid structure, and the top angle of each drying layer block is of an arc-shaped structure.
Furthermore, the number of the drying columns arranged on each layer of drying layer block is four, and the drying columns are symmetrically arranged; each drying column is of a cylindrical structure with two wide ends and a narrow middle part.
Furthermore, the number of the transverse heating pipes arranged on each drying layer block is three, the arrangement direction of each transverse heating pipe is consistent with that of the drying layer block, and each transverse heating pipe is arranged on two sides of each drying column.
Furthermore, the number of the longitudinal heating pipes arranged on each side of the drying box body is three, and the position of each longitudinal heating pipe is matched with that of each transverse heating pipe.
Furthermore, the number of the side heating pipes arranged on each drying column is two.
Furthermore, the section of the return air pipe is of an L-shaped structure.
Further, the cross section of the cavity connecting pipe is in an Contraband-shaped structure.
Furthermore, the section of the exhaust pipe is of a structure with a wide lower part and a narrow upper part.
Further, the fastener is one or more of a hose clamp, a rivet, an expansion screw, a bolt, a nut, a screw and a self-tapping screw.
The working principle of the invention is as follows:
when the fiber yarn drying device is used, fiber yarns enter the drying box body through the inlet of the drying box body, pass through the drying box channel and are wound outside each conveying roller, and when the fiber yarns are sequentially conveyed upwards to the top end of the drying box body through the conveying pipes, the box cover plate is inserted into the drying box body clamping block, and the fiber yarns penetrate out through the outlet of the drying box body; through start-up heating horizontal heating pipe, indulge heating pipe and side heating pipe, when the cellosilk passes through between the two-layer stoving layer piece, horizontal heating pipe is from the bottom to cellosilk radiant heating, and the side heating pipe is through at both sides to cellosilk radiant heating, and when the cellosilk passes through stoving layer piece one side, indulges the heating pipe and to cellosilk radiant heating in one side.
Outside cold air of stoving case gets into the stoving box through stoving box import, some air gets into in the stoving layer piece cavity through the cavity air intake, the air upwards flows because of heating self density diminishes, with the mechanical ventilation effect of ventilation blower, the air upwards flows through stoving post through-hole in every stoving post, until going out the tuber pipe through the cavity and discharging, after that through the cavity connecting pipe, the return air hose loopback to stoving box bottom one side, slowly blow off the air current, drive the interior airflow flow of stoving case passageway, after the air current carries out the heat convection with the cellosilk, discharge through the exhaust pipe. The invention has the beneficial effects that:
the invention can carry out multi-angle and omnibearing radiant heating on the carbon fiber wire by arranging the transverse heating pipe, the longitudinal heating pipe and the side heating pipe, so that the surface of the carbon fiber wire is uniformly radiated and dried; meanwhile, the drying box channel is in low-speed air flow through the mechanical ventilation effect of the ventilator, so that the purpose of convection heat exchange on the surface of the fiber yarns is achieved. The device of the invention achieves the purpose of fully drying the fiber yarns by carrying out radiation heat exchange and convection heat exchange on the surfaces of the fiber yarns, and has high drying speed and high efficiency.
The device has a compact structure and a small overall structure volume, and the fiber is coiled in the drying box body through the conveying roller and matched with the arrangement of a plurality of heating pipes, so that the fiber can achieve a strong drying effect through a short stroke; meanwhile, the special structural form arrangement in the device is matched, so that the airflow circulation stroke in the drying box body is in a staggered circulation form of inner circulation and outer circulation of the drying layer block, and the condition that the heat is utilized to the maximum extent when the drying box body is always in an airflow circulation drying state is guaranteed. Finally, when the device is in a small size, the heat exchange efficiency of the device can be further improved, and the device is suitable for drying the nanofiber tows with small diameters.

Claims (1)

1. A drying device for nanofiber production is characterized by comprising a drying box body, a box cover plate, a drying layer block, a drying column, a conveying roller, a transverse heating pipe, a longitudinal heating pipe, a lateral heating pipe, a cavity air outlet pipe, an air return pipe, a cavity connecting pipe, a ventilator and an exhaust pipe; the drying box body is in a cuboid shape and is of a hollow structure, the bottom end of one side of the drying box body is provided with a drying box body inlet, the box cover plate is arranged on one side of the drying box body, and the bottom end of the box cover plate is provided with a drying box body outlet; the box cover plate is inserted into the drying box body clamping blocks to realize the connection of the box cover plate and the drying box body; the drying layer blocks are arranged on two sides in the drying box body in a staggered manner, and two sides of each drying layer block are respectively and fixedly connected with the inner wall of the drying box body; a cavity is enclosed between the drying layer block and the inner wall of the drying box body to form a drying box channel, and the section of the drying box channel is S-shaped; the drying layer block is of a hollow structure, and a drying layer block cavity is formed; the bottom end of the cavity of the drying layer block at the bottom layer is provided with a cavity air inlet; the drying column is arranged on the top surface of the drying layer block, the bottom end of the drying column is vertically and fixedly connected with the top surface of one layer of the drying layer block, the top end of the drying column is vertically and fixedly connected with the bottom surface of the other layer of the drying layer block, the center of the drying column is hollow to form a drying column through hole, and two ends of the drying column through hole are communicated with the drying layer block cavity; the conveying rollers are arranged on one side of each drying layer block and symmetrically arranged, and two ends of each conveying roller are rotatably connected with the drying box body through bearings; the transverse heating pipe is arranged on the top surface of the drying layer block and fixedly connected with the drying layer block through a fastener; the longitudinal heating pipe is arranged on one side of the drying layer block and is fixedly connected with the drying box body through a fastener; the side heating pipes are arranged on two sides of each drying column, and each side heating pipe is fixedly connected with the drying column through a fastener; the cavity air outlet pipe is arranged on the top surface of the drying layer block at the top layer, the cavity air outlet pipe is fixedly connected with the drying layer block, and the bottom end of the cavity air outlet pipe is communicated with the cavity of the drying layer block; the air return pipe is arranged on one side of the drying box body, and the air return pipe is in through connection with the cavity air outlet pipe through a cavity connecting pipe; the ventilator is arranged on the cavity connecting pipe; the exhaust pipe is arranged on the top surface of the drying box body, the exhaust pipe is vertically and fixedly connected with the bottom surface of the drying box body, and the bottom end of the exhaust pipe is communicated with the drying box channel; the drying layer block is four in number, each drying layer block is of a cuboid structure, and the top angle of each drying layer block is of an arc-shaped structure; the number of the drying columns arranged on each layer of the drying layer block is four, and the drying columns are symmetrically arranged; each drying column is of a cylindrical structure with two wide ends and a narrow middle part; the number of the transverse heating pipes arranged on each drying layer block is three, the arrangement direction of each transverse heating pipe is consistent with that of the drying layer block, and each transverse heating pipe is arranged on two sides of each drying column; the drying box body at each side is provided with three longitudinal heating pipes, and the position of each longitudinal heating pipe is matched with that of the transverse heating pipe; the number of the side heating pipes arranged on each drying column is two; the section of the return air pipe is of an L-shaped structure; the cross section of the cavity connecting pipe is of an Contraband-shaped structure; the section of the exhaust pipe is of a structure with a wide lower part and a narrow upper part.
CN201910341442.5A 2019-04-26 2019-04-26 Drying device is used in nanofiber production Active CN110068212B (en)

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CN110068212B true CN110068212B (en) 2021-06-04

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Publication number Priority date Publication date Assignee Title
CN113203272A (en) * 2020-01-31 2021-08-03 Ykk株式会社 Drying machine

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Publication number Priority date Publication date Assignee Title
US4139953A (en) * 1977-03-18 1979-02-20 Pako Corporation Method and apparatus for drying photographic strip material
CN104329920A (en) * 2014-10-24 2015-02-04 江苏广盛源科技发展有限公司 High-performance fiber drying hotbox
CN205316884U (en) * 2015-12-22 2016-06-15 吉安市三江超纤无纺有限公司 Intelligent drying device that fabric production line used
CN205425706U (en) * 2016-03-08 2016-08-03 杨露萍 Drying device for textile material
CN109253605B (en) * 2017-07-14 2021-03-30 Ykk株式会社 Drying machine
CN208312959U (en) * 2018-06-25 2019-01-01 安徽劲派纺织服饰有限公司 A kind of FMS garment material drying sterilizing unit

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