CN214271235U

CN214271235U - Melt-blown production line

Info

Publication number: CN214271235U
Application number: CN202120204900.3U
Authority: CN
Inventors: 王延启; 谭卫东; 曹晓峰; 王中荣; 边福根
Original assignee: Xinlong Holdings Group Co ltd; Yichang Xinlong Hygienic Materials Co ltd
Current assignee: Xinlong Holdings Group Co ltd; Yichang Xinlong Hygienic Materials Co ltd
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2021-09-24
Anticipated expiration: 2031-01-25

Abstract

The utility model provides a melt-blown production line, including consecutive screw extruder, filter, measuring pump and melt-blown die head, melt-blown die head's export one end sets up receiving drum and take-up device, still includes first air heating device, air compressor machine and the hot-air line who links to each other with the air compressor machine, and the spinneret orifice of hot-air line intercommunication melt-blown die head sets up the cross-air mechanism between melt-blown die head and the receiving drum, and first air heating device sets up in screw extruder and hot-air line's outside. By adopting the side blowing mechanism, the self thermal bonding effect of the melt-blown fiber can be improved, the longitudinal and transverse strength of the cloth is improved, and the mechanical property is improved, so that the application field is expanded, the material quality is improved, the product category of enterprises is increased, and the income is increased. In addition, the utility model discloses a screw extruder's heat heats the air, has practiced thrift the energy.

Description

Melt-blown production line

Technical Field

The utility model relates to a melt-blown fabric production technical field especially relates to a melt-blown production line.

Background

The melt-blown fabric is also called melt-blown non-woven fabric, and is woven by adopting a melt-blown non-woven process. The melt-blown non-woven process is to utilize high-speed hot air to draw polymer melt fine flow extruded from spinneret orifices so as to form superfine fibers, spray the superfine fibers on a collecting device, and form non-woven fabric by means of self-adhesion.

The existing melt-blown fabric production line generally comprises an extruder, a melt filter, a metering pump and a melt-blowing die head which are connected in sequence, wherein during operation, a screw extruder heats and melts granules, then the granules are conveyed to the melt filter, the granules are conveyed to the metering pump after being filtered, and a raw material melt is conveyed to the melt-blowing die head by the metering pump and sprayed to a fiber collector. The melt-blowing die head is connected with an air compressor through a pipeline by an air heater, and when the melt-blowing die head works, the melt extruded by the melt-blowing die head is drawn by the heated high-pressure air flow to form fibers. The melt-blown die head and the fiber collector are arranged oppositely, the fiber collector comprises a grid conveyor belt device, an open air-extracting box is arranged in the grid conveyor belt device corresponding to the melt-blown die head, the air-extracting box is connected with an exhaust fan through a pipeline, and when the fiber-blowing device works, the air flow generated by the exhaust fan replenishes the fibers onto the grid conveyor belt and cools and solidifies the fibers; the side part of the fiber collector is provided with a winding device, and the produced melt-blown fabric is collected by a winding roller; some still are furnished with and stay static and cut apart the function, before getting into the roll-up roller and collecting, stay static and cut apart convenient follow-up use to the melt-blown fabric.

The melt fine flow of the existing melt-blown production line is directly dropped on a receiving device through hot air drafting to form a web, the fibers are very loose, the web is fixed through self thermal bonding, the fibers are irregularly arranged in the forming process, the obtained orientation degree is very low, the strength of the web is low, the mechanical property of the material is poor, and the use of a finished product is influenced. In addition, in the prior art, hot air is generated by an additional hot air generating device, and the heat of the screw extruder is directly discharged into the air, so that great energy waste is caused.

SUMMERY OF THE UTILITY MODEL

To exist not enough among the prior art, the utility model provides a melt-blown production line, it has solved the fuse-element thin flow that exists among the prior art and has flowed through hot-blast draft and directly fall on receiving arrangement the very loose problem of web formation fibre, has still solved the extravagant technical problem of heat in the prior art simultaneously.

According to the embodiment of the utility model discloses a melt-blown production line, including consecutive screw extruder, filter, measuring pump and melt-blown die head, melt-blown die head's export one end sets up and receives cylinder and take-up device, still include first air heating device, air compressor machine and with the hot-air line that the air compressor machine links to each other, hot-air line intercommunication melt-blown die head's spinneret orifice, melt-blown die head and receive and set up the cross-air mechanism between the cylinder, first air heating device set up in screw extruder with hot-air line's outside.

Compared with the prior art, the utility model discloses following beneficial effect has: by adopting the side blowing mechanism, the self thermal bonding effect of the melt-blown fiber can be improved, the longitudinal and transverse strength of the cloth is improved, and the mechanical property is improved, so that the application field is expanded: the cloth can be selected from the places with higher requirements on the strength of the cloth in the application such as filtering materials, medical sanitary materials, oil absorption materials, clothing materials, various wiping cloths, sound absorption materials, sound insulation materials and the like. Improve the material quality, increase the product category of enterprises and improve the income. In addition, the utility model discloses a screw extruder's heat heats the air, has practiced thrift the energy.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of the side blowing mechanism in the embodiment of the present invention.

In the above drawings: 1. a screw extruder; 2. a filter; 3. a metering pump; 4. a melt-blowing die; 5. an air compressor; 6. a first air heating device; 7. a hot air duct; 8. a receiving drum; 9. a winding device; 10. a side blowing mechanism; 11. a second air heating device; 12. a circulating water tank; 13. a melt conveying conduit; 14. an air blowing port; 15. a first baffle; 16. a second baffle; 17. and (4) opening.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments.

As shown in FIG. 1, the embodiment of the utility model provides a melt-blown production line, including consecutive screw extruder 1, filter 2, measuring pump 3 and melt-blown die head 4, link to each other through melt conveying pipeline 13 between screw extruder 1, filter 2, measuring pump 3 and the melt-blown die head 4. One end of an outlet of the melt-blowing die head 4 is provided with a receiving roller 8 and a winding device 9, the melt-blowing die head further comprises a first air heating device 6, an air compressor 5 and a hot air pipeline 7 connected with the air compressor 5, the hot air pipeline 7 is communicated with a spinneret orifice of the melt-blowing die head 4, a side blowing mechanism 10 is arranged between the melt-blowing die head 4 and the receiving roller 8, and the first air heating device 6 is arranged outside the screw extruder 1 and the hot air pipeline 7.

The air compressor 5 is connected with a circulating water tank 12 through a water inlet pipe and a water return pipe, and the circulating water tank 12 is used for cooling the air compressor 5.

The technical principle of the utility model is that: the screw extruder 1 melts the raw materials, the residual heat can be used for heating air, the air compressor 5 provides driving force for the hot air, the hot air enters the spinneret orifice of the melt-blowing die head 4, the melted slurry is drawn into fine fibers, then a certain amount of air is supplied through the side blowing mechanism 10 to fold and stack the fibers, and the longitudinal and transverse strength and the mechanical property of the material are improved while the quality such as filtration effect is guaranteed. The receiving roller 8 and the winding device 9 are both in the prior art, and a vacuum suction device is arranged in the receiving roller 8, so that the fibers are uniformly stacked on the receiving roller 8 and then formed into a coil by the winding device 9.

The side blowing mechanism 10 is disposed on both sides of the melt-blowing die head 4 and includes a blower (not shown) and a blowing port 14 communicated with an air outlet of the blower.

The air blowing port 14 is a flat rectangular port. The flat rectangular opening helps the fibers lay flat more evenly.

As shown in fig. 2, a first diversion assembly and a second diversion assembly are arranged in the air blowing opening 14, the first diversion assembly is located at one end, close to the fan, of the air blowing opening 14, and the second diversion assembly is evenly distributed at one end, far away from the fan, of the air blowing opening 14. Since the air distribution in the air outlet 14 is not uniform (the middle wind force is stronger than the wind forces at the two ends), the first and second guide assemblies are arranged to make the air distribution uniform.

The first flow guide assembly comprises two first flow guide plates 15 which are obliquely arranged, the two first flow guide plates 15 are symmetrically arranged relative to the center line of the air blowing port 14, and the distance between the two first flow guide plates 15 and the end close to the fan is smaller than the distance between the two first flow guide plates 15 and the end far away from the fan.

The second guide assembly comprises a plurality of guide plate groups, each guide plate group comprises two second guide plates 16 which are arranged oppositely, the distance between the two second guide plates 16 in each guide plate group, which is close to one end of the fan, is smaller than the distance between the two second guide plates 16, which are far away from one end of the fan, the end part of the air blowing port 14 is provided with a baffle, the baffle is provided with a plurality of openings 17 corresponding to the guide plate groups, and the distance between every two adjacent openings 17 is not more than 1 cm.

After passing through the first and

second air deflectors

15 and 16, the air, which is strong in the middle and weak at both ends, becomes relatively uniform and then is blown out from the opening 17. The distance between the openings 17 is not more than 1cm so as to avoid uneven air outlet.

First air heating device 6 is including setting up the heat preservation shell in screw extruder 1 outside, the heat preservation shell with screw extruder 1 sealing connection, hot-air line 7 wears out the heat preservation shell.

The hot air pipeline 7 is close to set up temperature sensor in the 4 one ends of melt-blown die head, set up second air heating device 11 between hot air pipeline 7 and the melt-blown die head 4, second air heating device 11 including set up in the outside heating mantle of hot air pipeline 7, set up the electric heating net in the heating mantle, the electric heating net winds 7 circumference settings of hot air pipeline.

The temperature sensor is arranged to collect the gas temperature in one end of the hot air pipeline 7 close to the melt-blowing die head 4 at regular time, if the temperature is lower than the required temperature, the electric heating net can be started until the temperature reaches the required temperature.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. A melt-blown production line is characterized in that: the device comprises a screw extruder, a filter, a metering pump and a melt-blowing die head which are sequentially connected, wherein one end of an outlet of the melt-blowing die head is provided with a receiving roller and a winding device, the device also comprises a first air heating device, an air compressor and a hot air pipeline connected with the air compressor, the hot air pipeline is communicated with a spinneret orifice of the melt-blowing die head, a cross air blowing mechanism is arranged between the melt-blowing die head and the receiving roller, and the first air heating device is arranged outside the screw extruder and the hot air pipeline.

2. The melt-blown production line of claim 1, wherein: the side blowing mechanisms are arranged on two sides of the melt-blown die head and comprise a fan and a blowing port communicated with an air outlet of the fan.

3. A meltblowing line as recited in claim 2, wherein: the air blowing opening is a flat rectangular opening.

4. A meltblowing line according to claim 3, characterized in that: the air blowing device is characterized in that a first diversion assembly and a second diversion assembly are arranged in the air blowing port, the first diversion assembly is located at the position, close to one end of the fan, of the air blowing port, and the second diversion assembly is evenly distributed at the position, far away from one end of the fan, of the air blowing port.

5. The melt-blown production line of claim 4, wherein: the first flow guide assembly comprises two first flow guide plates which are obliquely arranged, the two first flow guide plates are symmetrically arranged relative to the center line of the air blowing port, and the distance between the two first flow guide plates and the end, close to the fan, of each first flow guide plate is smaller than the distance between the two first flow guide plates and the end, far away from the fan, of each first flow guide plate.

6. The melt-blown production line of claim 4, wherein: the second guide assembly comprises a plurality of guide plate groups, each guide plate group comprises two second guide plates which are arranged oppositely, the distance between the two second guide plates in each guide plate group, which is close to one end of the fan, is smaller than the distance between the two second guide plates, which are far away from one end of the fan, the end part of the air blowing port is provided with a baffle, the baffle is provided with a plurality of openings corresponding to the guide plate groups, and the distance between every two adjacent openings is not more than 1 cm.

7. The melt-blown production line of claim 1, wherein: the first air heating device comprises a heat preservation shell arranged outside the screw extruder, the heat preservation shell is hermetically connected with the screw extruder, and the hot air pipeline penetrates out of the heat preservation shell.

8. The melt-blown production line of claim 7, wherein: the hot air pipeline is close to a temperature sensor is arranged in one end of the melt-blowing die head, a second air heating device is arranged between the hot air pipeline and the melt-blowing die head, the second air heating device comprises a heating cover arranged outside the hot air pipeline, an electric heating net is arranged in the heating cover, and the electric heating net winds the hot air pipeline in the circumferential direction.