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Spray cooling method and device for producing melt-blown nonwovens

A technology of spray cooling and non-woven fabrics, which is applied in the fields of textiles and papermaking, fiber processing, filament/thread forming, etc. It can solve the problems of high cost of air conditioning system design, installation and operation, insufficient improvement of product technical performance, and addition of additives, etc., to achieve Improve product performance, open up development prospects, and expand the effect of application fields

Active Publication Date: 2017-04-05
XINLONG HLDG GROUP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned air-conditioning blowing cooling has the following problems: high cost, insufficient improvement of product technical performance; high cost of air-conditioning system design and installation (equipment of refrigeration unit, wind cabinet, commissioning and operation) and operation; additives cannot be added to the product through cold air

Method used

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  • Spray cooling method and device for producing melt-blown nonwovens
  • Spray cooling method and device for producing melt-blown nonwovens
  • Spray cooling method and device for producing melt-blown nonwovens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as figure 1 , figure 2As shown, a spray cooling device 70 (hereinafter referred to as spray cooling device 70) for the production of melt-blown nonwovens includes: a first filter 3 (SMJ-J precision filter), a stirring tank 4 (diameter Φ800x Height 1200), deceleration motor 7 (model is BD1-17-1.5), self-priming pump 9 (model is 1ZDB45, self-priming pump is selected because the liquid generates eddy current or air during the stirring process, which affects the suction of the pump and its water supply), Second filter 12 (3 / 4 Y-type filter), decompression filter 18 (498 decompression filter), water distributor 19 (Φ60 stainless steel, internal structure is cylindrical), gas distributor 20A (Φ60 stainless steel , the internal structure is cylindrical), the nozzle 23 (the model is BL-1 / 4 / J-SS); the stirring tank 4 is provided with a first filter 3 and a reduction motor 7, and the stirring tank 4 is equipped with There is an impeller 5 (diameter Φ420x width 50), a firs...

Embodiment 2

[0034] Such as image 3 As shown, PP slices (P6815, polypropylene) are fed into the screw extruder 20 (JWM80) through the feeding hopper 10, extruded by the screw extruder 20 to melt (about 240°C) into a melt, and then filtered The net 30 (its function is to filter out the impurities in the melt to avoid clogging the spinneret hole) removes impurities and accurately metered by the metering pump 40 (model JRG-100A) (its function is to control the gram weight to 30g / ㎡ and At the same time, the fineness of the fiber is controlled), the metering pump 40 is a gear pump), and the melt is continuously transported to the spinneret 60. Hot air tubes 50 are installed on both sides of the spinneret 60 . Immediately after the fiber is ejected, high-speed hot air is used to carry out air drafting, and the fiber is blown into superfine fibers, and then cooled by the above-mentioned spray cooling device 70 installed on the support 80 (when superfine fibers with high temperature attached to ...

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PUM

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Abstract

The invention relates to a spray cooling method for melt-blown non-woven production and a device thereof. The device comprises a first filter, a stirring tank, a gear motor, a self sucking pump, second filters, a pressure reducing filter, a water distributor, an air distributor and nozzles. The nozzles are installed on the positions where the nozzles are centrally symmetric with a production line in the X-shaft direction, the vertical distance in the spinning direction between the nozzles and spinning plate gaps in the Y-shaft direction is 210mm, the distance between the nozzles with the bottoms of spinning plates in the Z-shaft direction is 35mm, and the direction of the spray angle is perpendicular to the direction of the spinning. The invention further relates to a spray cooling method. Cooling is carried out on superfine fiber in melt-blown non-woven production by using the spray cooling device. Compared with the prior art, the spray cooling method for melt-blown non-woven production and the device thereof can reduce the cost, and energy saving of 783.5 Kwh / T can be achieved; in the spray process, annexing agents are added into a solution so that the product performance is improved and product application range is widened and the like.

Description

technical field [0001] The invention relates to a spray cooling method and a device thereof for the production of melt-blown nonwovens, belonging to the technical field of industrial textiles. Background technique [0002] Meltblown nonwovens are one of the nonwovens. The process of melt-blown nonwovens is: using high-speed hot air flow to draw the thin stream of polymer melt extruded from the spinneret hole of the die head, thereby forming ultra-fine fibers and collecting them on the condensation screen or roller. At the same time, it is bonded to itself to become a melt blown nonwoven fabric. The process flow of meltblown nonwovens is: melt preparation-filtering-metering-melt extrusion from the spinneret hole-melt stream drawing and cooling-netting. The main characteristics of melt-blown nonwovens are: the fiber fineness is small, usually less than 10 μm, and the fineness of most fibers is 1 to 4 μm. Meltblown nonwovens are mainly used as filter materials, medical and s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D5/092
CPCD01D5/0885
Inventor 顾燕山陈喆杨晓伟翁永利王庭峰
Owner XINLONG HLDG GROUP