CN107338493B

CN107338493B - High-efficient washing spray set is spun to carbon fiber precursor wet process

Info

Publication number: CN107338493B
Application number: CN201710727869.XA
Authority: CN
Inventors: 石金; 钱鸿川; 刘贯通; 霍清锋; 宋俊鹏
Original assignee: Jiangsu Hengshen Co Ltd
Current assignee: Jiangsu Hengshen Co Ltd
Priority date: 2017-08-23
Filing date: 2017-08-23
Publication date: 2022-09-13
Anticipated expiration: 2037-08-23
Also published as: CN107338493A

Abstract

The invention provides a high-efficiency washing spray device for wet spinning of carbon fiber precursors, which comprises a spray water inlet pipe, a spray distribution pipe, a distribution pipe support, a spray bottom plate, a spray device fixing seat, a tow flushing plate and a spray pipe, wherein the spray distribution pipe penetrates through the bottom of a washing tank and is connected with one end of the spray water inlet pipe; when the device is used, under the action of the tow flushing plate and the spray pipe, the tow solvent is quickly removed without damaging the tows. The whole set of equipment has compact structure, is concise and clear, is economical and efficient, and provides an efficient and economical way for removing the tow solvent.

Description

High-efficient washing spray set is spun to carbon fibre precursor wet process

Technical Field

The invention relates to a high-efficiency washing spray device for wet spinning of carbon fiber precursors, belongs to a novel spinning washing cleaning technology of PAN-based carbon fiber precursors, and particularly relates to a high-efficiency washing spray device for wet spinning.

Background

With the rise of the carbon fiber industry in recent years, the cost control requirement on the processing of the precursor becomes more and more strict, and the best method for controlling the cost is to improve the spinning speed. The tow solvent removing device mastered at present has a plurality of defects: the method has the disadvantages of incapability of completely removing the solvent during high-speed spinning, complex device, high operation cost, and high equipment investment and maintenance cost. In a word, the existing washing and cleaning device cannot meet the aims of high-speed spinning, protofilament cost reduction and fiber quality improvement, so that a device which is simple in structure, meets the requirements of high-speed spinning and efficiently and quickly removes a tow solvent is urgently needed.

Disclosure of Invention

The invention aims to provide a high-efficiency washing and spraying device for wet spinning of carbon fiber precursors, which is a device with a simple structure and capable of meeting the requirements of high-speed spinning and high-efficiency washing, so that the production cost of the carbon fiber precursors is reduced, and the problems that the existing washing and washing device in the prior art cannot meet the requirements of high-speed spinning, precursor cost reduction and fiber quality improvement are solved.

The term "high-efficiency water washing" as used in the present specification and claims means "high-efficiency high-spinning-speed carbon fiber precursor water washing" for short.

The technical solution of the invention is as follows:

the utility model provides a high-efficient washing spray set is spun to carbon fibre precursor wet process, is including spraying the inlet tube, spray the distributing pipe, the distributing pipe support, spray the bottom plate, the spray set fixing base, silk bundle washing board and shower, spray the distributing pipe and pass the bottom of the wash bowl and be connected with the one end that sprays the inlet tube, the other end that sprays the inlet tube links to each other with the circulating pump export, on the distributing pipe support was located to the spray distributing pipe, on the spray bottom plate was located to silk bundle washing board and shower, on the fixing base was located respectively at the both ends of spraying the bottom plate, the fixing base was located in the wash bowl.

Furthermore, the spraying distribution pipe is of a square frame shape, the spraying distribution pipe and the spraying pipe are of a movable opening connecting structure, and an O-shaped ring for preventing liquid leakage and made of PTEF materials is arranged between the spraying distribution pipe and the spraying pipe.

Furthermore, the thickness of the spraying bottom plate is not less than 5mm, and the spraying bottom plate is welded with the rinsing bath through the spraying device fixing seat.

Further, the tow flushing plate adopts a wave structure.

Further, the spray pipes are lower than the tow flushing plate.

Furthermore, the spray pipe is uniformly provided with spray holes.

Further, the spray distribution pipe is provided with a ball valve for adjusting the amount of water spray.

The invention has the beneficial effects that:

when the device is used, under the action of the tow flushing plate and the spray pipe, the tow solvent is quickly removed without damaging the tows. The whole set of equipment has compact structure, is concise and clear, is economical and efficient, and provides an efficient and economical way for removing the tow solvent.

Secondly, compare in prior art, this kind of carbon fiber precursor wet spinning high efficiency washing spray set adopts both ends to intake owing to even the trompil that sprays for endless washing water can evenly outwards spray and form linear water smoke, and solvent is got rid of in high-efficient washing.

And the two ends of the spraying pipe are provided with the flushing devices which are higher than the spraying pipe, so that the tows can be effectively spread, and the solvent can be more efficiently removed in the production of large tows.

Fourth, this kind of carbon fiber precursor wet spinning high-efficient washing spray set, shower and distributing pipe adopt the running joint to be connected, conveniently overhauls and clears up the broken filament inside the pipeline.

And fifthly, the ball valve is arranged before the washing water enters the distribution pipe, so that the water spraying quantity and the water mist height can be adjusted conveniently, the adjustment can be carried out at any time according to the thickness of the produced tows, the tows are not damaged, and the production of tows of different specifications can be met.

Drawings

FIG. 1 is a schematic structural diagram of a high-efficiency wet-spinning water-washing spraying device for carbon fiber precursors in an embodiment of the invention;

FIG. 2 is another schematic structural diagram of the high-efficiency water-washing spraying device for wet spinning of carbon fiber precursors in the embodiment;

FIG. 3 is a schematic side view of a high-efficiency water-washing spray device for wet spinning of carbon fiber precursors according to an embodiment;

FIG. 4 is a schematic top view of the high-efficiency water-washing spray device for wet spinning of carbon fiber precursors according to the embodiment;

FIG. 5 is a schematic structural view of a distribution pipe in the embodiment;

FIG. 6 is a schematic view showing the relationship between the filament bundle and the spraying device in the embodiment

Wherein: 1-spraying water inlet pipe, 2-spraying distribution pipe, 3-distribution pipe bracket, 4-spraying bottom plate, 5-fixing seat, 6-filament bundle flushing plate, 7-spraying pipe, 8-water washing tank and 9-filament bundle.

Detailed Description

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Examples

The utility model provides a carbon fiber precursor wet spinning high-efficient washing spray set, including spraying inlet tube 1, spray distribution pipe 2, distribution pipe support 3, spray bottom plate 4, fixing base 5, tow flushing plate 6 and shower 7, spray distribution pipe 2 and pass wash bowl 88 bottom and be connected with the one end that sprays inlet tube 1, the other end that sprays inlet tube 1 links to each other with the circulating pump export, spray distribution pipe 2 and locate on distribution pipe support 3, spray distribution pipe 2 intercommunication shower 7, tow flushing plate 6 and shower 7 are located on spraying bottom plate 4, the both ends that spray bottom plate 4 are located respectively on fixing base 5, fixing base 5 is located in wash bowl 8.

When the device is used, under the action of the tow flushing plate 6 and the spray pipe 7, the solvent of the tows 9 is quickly removed, and the tows 9 are not damaged. The whole set of equipment has compact structure, is concise and clear, is economic and efficient, and provides an efficient and economic way for removing the solvent of the tows 9.

Spraying distribution pipe 2 adopts the square frame type, sprays distribution pipe 2 and adopts running joint connection structure with shower 7, sprays and is equipped with between distribution pipe 2 and shower 7 and is used for preventing the liquid leakage PTEF material O type circle. Two ends of the spray bottom plate 4 are provided with long waist-shaped hole lifting lug fixing seats 5, so that the whole device and the rinsing bath 8 can be conveniently installed. The spraying distribution pipe 2 penetrates through the spraying bottom plate 4 to be connected with the spraying pipe 7, the connecting mode adopts a PTFE material O-shaped ring loose joint to be connected, the installation and the disassembly are convenient, and the spraying pipe 7 and the tow flushing plate 6 are welded into a whole.

The thickness of the spraying bottom plate 4 is not less than 5mm, and the spraying bottom plate 4 is welded with the rinsing bath 8 through the fixed seat 5. The spraying bottom plate 4 is arranged on the fixing seat 5, and the two sides of the spraying bottom plate 4 are installed by adopting jackscrews, so that the level of the whole device can be conveniently adjusted, the tow flushing plate 6, the spraying pipe 7 and the tow 9 are ensured to be horizontal all the time, and the residual difference of the solvent of the internal and external tows 9 is reduced.

The distribution pipe support 3 is arranged below the spraying distribution pipe 2, and the distribution pipe support 3 adopts a design of pipe support and sliding jackscrews, so that the level of the whole device can be adjusted. The other end of the spraying distribution pipe 2 is connected with the spraying water inlet pipe 1 through a flange, the flange of the spraying water inlet pipe 1 is a half through hole, the outer edge of the flange is cut off 1/4, the whole spraying water inlet pipe 1 is welded at the bottom of the rinsing bath 8 at the flange, and the spraying water inlet pipe 1 is connected with the outlet of the circulating pump.

The tow flushing plate 6 adopts a high-finish wave horizontal folding type flushing plate, is similar to a washboard, and is used for spreading the tows 9, so that the tows 9 are prevented from being damaged when being unfolded.

In the embodiment, the spray distribution pipe 2 is provided with a ball valve for adjusting the amount of water spray. The water washing water enters the distribution pipe through the circulating pump and is evenly divided into four inlets, the two spraying pipes 7 are evenly sprayed out from the gap, and the spraying pipes 7 are positioned below the tows 9. The spraying distribution pipe 2 of the embodiment adopts water inlet with four ports at two ends of a double pipe, and the spray holes of the spray pipe 7 are provided with grooves at intervals, washing water can be uniformly sprayed out from the spray pipe 7 after passing through a circulating pump, the installation position of the spray pipe 7 is about 2-3mm lower than the tow washing plate 6, the water is sprayed out from bottom to top to form linear water mist, the tows 9 are directly cleaned, and the tows 9 can be uniformly washed off a solvent in the tows 9 after passing through the spray pipe 7.

The spray pipe 7 is formed by a stainless steel square pipe washing tank into a thin seam with the width of 2-3mm, the width of 1mm and the interval of 1-2mm, so that water mist is formed when water is sprayed out. The whole device is characterized in that the tow flushing plate 6 is 1-2mm higher than the horizontal line of the bottom surface of the washing roller, so that the tows 9 are uniformly spread in the washing tank 8, and the effect of yarn spreading is achieved.

The tow flushing plate 6 is arranged on the spraying bottom plate 4, and the two ends of the spraying bottom plate 4 are provided with the fixed seats 5 which can fix the whole spraying device in the rinsing bath 8. As shown in figure 2, the tow flushing plates 6 are positioned at two ends of the spray pipe 7 and play a role of spreading yarns, and washing water is sprayed out from the fine seams of the spray pipe 7 to form linear water mist. As shown in figure 3, the spray distribution pipe 2 penetrates through the bottom of the rinsing bath 8, is welded at the bottom of the bath and is connected with an upper end pipeline through a flange.

As shown in fig. 5, the washing water enters the spray distribution pipe 2 through the spray header pipe and enters the spray pipe 7 through four inlets in two ways. In the installation, for the convenience of installation and sealed wash bowl 8, spray distribution pipe 2 and the flange that wash bowl 8 is connected seal down, should ensure tow flushing plate 6 and shower 7 installation level simultaneously before the installation, and tow flushing plate 6 and shower 7 are connected on spraying bottom plate 4 through jackscrew and interior hexagonal, guarantee levelness and height-adjustable. The bottom end of the tow flushing plate 6 is provided with a jackscrew, the height of the tow flushing plate can be adjusted, and four corners between the tow flushing plate 6 and the spray pipe 7 and the spray bottom plate 4 are adjusted horizontally by the jackscrew.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. The utility model provides a high-efficient washing spray set is spun to carbon fiber precursor wet process which characterized in that: including spraying the inlet tube, spray the distributing pipe, the distributing pipe support, spray the bottom plate, the spray set fixing base, silk bundle flushing plate and shower, it passes the tank bottom portion and is connected with the one end that sprays the inlet tube to spray the distributing pipe, the other end that sprays the inlet tube links to each other with the circulating pump export, it locates on the distributing pipe support to spray the distributing pipe, silk bundle flushing plate and shower are located on the bottom plate that sprays, the both ends that spray the bottom plate are located respectively on the fixing base, in the wash bowl was located to the fixing base, it is not less than 5mm to spray the thickness of bottom plate, it welds with the wash bowl through the spray set fixing base to spray the bottom plate, silk bundle flushing plate adopts the wave structure.

2. The efficient water-washing spraying device for wet spinning of carbon fiber precursors as claimed in claim 1, wherein: the spraying distribution pipe adopts the square frame type, and spraying distribution pipe and shower adopt running joint connection structure, spray and be equipped with between distribution pipe and the shower and be used for preventing the liquid leakage PTEF material O type circle.

3. The high-efficiency water-washing spraying device for wet spinning of carbon fiber precursors according to claim 1, characterized in that: the spray pipe is lower than the tow flushing plate.

4. The high-efficiency water-washing spray device for wet spinning of carbon fiber precursors as claimed in any one of claims 1 to 3, wherein: the spraying pipe is evenly provided with spraying holes.

5. The high-efficiency water-washing spray device for wet spinning of carbon fiber precursors as claimed in any one of claims 1 to 3, wherein: the spraying distribution pipe is provided with a ball valve used for adjusting the water spraying amount.