CN2457177Y - Melt filter for chemical fiber melt spinning - Google Patents

Abstract

The utility model relates to a melt filter for chemical fiber melt spinning. Filtration chambers are respectively positioned on both sides of a triple valve body by the utility model, and discharging ports which are arranged on both of the two sides of the triple valve body are connected with an interface of each filtration chamber by an inclined tube and a horizontal connecting tube which is arranged on a heating chamber of a sandwich layer. The utility model has the advantages of convenient washing, installation and operation.

Description

Chemical fibre melt spinning fondant filter

The utility model relates to the structural improvement of a kind of chemical fibre melt spinning with fondant filter.

The production technology that melt spinning is is a kind of efficient, pollution-free, production cost is low is accounting for dominant position in chemical fibre industry is produced.But, and there are high temperature, high pressure, high polymer self to have high viscosity to accompany again owing to melt spinning carries out in supermatic big industrial production.And high polymer wherein easily decomposes under high temperature, high pressure, easy chemically reactive, and high viscosity can make high polymer, and each is unequal the time of staying in pipeline and equipment, and some of high polymer overstands make it to decompose and influence spinning.So this technology requires very high to equipment.Especially high polymer ties up at a high speed and passes very tiny spinneret hole continuously down, so filter is a kind of requisite visual plant in this production procedure.

At present the structures used of the overwhelming majority are made up of two filter chambers, two triple valves and the heating of heating agent interlayer, heat-insulation system, most external be heat-preservation cotton and shell, below be a frame.On arrangement form particularly, possible mode mainly contains as accompanying drawing 2 to four kinds shown in the accompanying drawing 5.Wherein, accompanying drawing 2 be triple valve last, two filter chambers are down, install from bottom to top the filter chamber, and too inconvenience is installed like this, the filter chamber is the object of tens kilogram weights, uses unimaginable.Accompanying drawing 3 described structure of filter are: a filter chamber is last, another filter chamber under structure.Because upper and lower filter chamber temperature is different, spinning technique does not allow, and installs same inconvenient.Accompanying drawing 4 is a kind of reasonable arrangements, and promptly the filter chamber erects placement.After but the filter chamber erected placement, the no dead angle of melt flows and staying discharged water and two difficulties in space of catalytic materials can have concurrently simultaneously.

5 in accompanying drawing is the sketch of accompanying drawing 1, and its more detailed structure is referring to accompanying drawing 1.Filter chamber's 3 main filter core 31, sealing rings excessively that do not waited by the quantity of filter chamber's cylindrical shell and end cap and inside are formed, an import 32 and an outlet are arranged on end cap or cylindrical shell, melt flows into cylindrical shell thus, passed the metal filtration felt (net) of filter core under pressure, flow into the in-core portion of filtering, melt flows to filter chamber's outlet by filtering in-core portion again.And being connected by two filter chambers and two valves of valve and filter chamber formed, and the filter chamber is placed in the same side of valve body, and the passage inclined hole of two valves is a small distance at the valve core place, and the place, filter chamber is big distance.Though it is little that the small distance at valve core place has reduced operational stroke, helps spinning technique; And the big distance at place, filter chamber is in order to accommodate two serious offense filter chambers.Because this connected mode makes the opposite direction of operating mechanism of valve body relatively empty smooth, and the maintenance valve need could take out the interior whole parts of valve body in valve body operating mechanism side and the operation of its two, opposite.So still exist 1, the filter chamber tiltedly advances, tiltedly goes out, and filter chamber's inconvenience is installed, the filter chamber often need take out cleaning; 2, the heating agent chuck of complicated shape makes trouble; 3, the import and export of filter chamber is downward, when taking out the filter chamber, behind the installed surface of inner remaining melt meeting flow valves, drop down onto in the pulp-collecting box 35, especially when being used to make the filter of band cracking or band catalytic pyrolysis function, because of the viscosity of its melt has descended 1/tens, this structure of filter can't be used.

Goal of the invention of the present utility model provides a kind of reasonable structural arrangement, and it is convenient to clean, the filter core long service life, and production cost is lower, and can be made into the chemical fibre melt spinning fondant filter of band catalytic pyrolysis filter chamber.

Goal of the invention of the present utility model mainly is achieved by following technical proposals: described filter chamber splits the both sides at triple-valve body; And the discharging opening of establishing the described triple-valve body of hand both sides by inclined tube and be located on the interlayer heating clamber level to adapter and the interface of filter chamber join.Its main feature is that two filter chambers with the past are placed in the valve body same side, change both sides (being that valve is in middle, pendulum both sides, filter chamber) into, two passage inclined holes of valve body tiltedly change into to medial axis oblique to big distance, two passage inclined holes of original structure tiltedly are in order to put the requirement of two filter chambers to the space to big distance, two filter chambers after the improvement are placed on the both sides of valve, do not have the requirement in this space; Two passage inclined holes are constant in valve core place distance, so to spinning and not influence of operating distance.Also be beneficial to transformation to existing equipment.

Inclined tube on the described triple-valve body is parallel to each other, and its nearly open centre of end of taking over is apart from convergence.Like this, under the situation that can very not change, utilize parallel tilting pipe, can simply, easy be achieved capablely in the structure of triple-valve body.

In order to reach goal of the invention of the present utility model better, described inclined tube can be and is arranged on the through hole of offering on the triple-valve body, and the line at its triple-valve body outer openings center just in time passes the axle center of two lateral recumbent posture cylinder filter chambers.

Therefore, the utlity model has following advantage: 1, reasonable structural arrangement, it is convenient to clean, the remaining melt when taking out the filter chamber, in the filter chamber flow to uncovered being located in the pulp-collecting box on the frame of device external; 2, shell, heating agent chuck are tetragonal simple structure, and fabrication and processing is easy, and production cost is lower, installation, easy to operate; 3, since the utility model can successfully to adopt high-temperature water vapor be exactly extraordinary decomposition agent to terylene, polyamide fibre, both be beneficial to environmental protection, the saturation pressure of water under spinning temperature be than low many of spinning pressure simultaneously, more improve its security.4, can be made into band catalytic pyrolysis filter chamber, and cracking process all is to carry out in the heating agent chuck of standby filter chamber and prepped side,, is beneficial to and improves filter core service life not influence of ordinary production.

Accompanying drawing 1 is the structural representation of existing a kind of chemical fibre melt spinning with fondant filter;

Accompanying drawing 2 is existing a kind of chemical fibre melt spinning sketches with fondant filter;

Accompanying drawing 3 is existing another kind of chemical fibre melt spinning sketches with fondant filter;

Accompanying drawing 4 is existing the third chemical fibre melt spinning sketches with fondant filter;

Accompanying drawing 5 is existing the 4th kind of chemical fibre melt spinning sketches with fondant filter;

Accompanying drawing 6 is a kind of arrangement simplified schematic diagram of the present utility model;

Accompanying drawing 7 is a kind of sectional structure schematic diagrames of the present utility model.

Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is further described.

Embodiment: the end at spool 21 is provided with back adapter sleeve 23, and the other end is provided with preceding adapter sleeve 24, is provided with commutation sealing ring 22 therebetween, and is wholy set in the triple-valve body 2; Be provided with inclined tube 6 in the both sides of triple-valve body 2, one end and described discharging opening 7 join, its other end by be located on the interlayer heating clamber 9 level to the interface of adapter 8 and filter chamber 3 join.Described filter chamber 3 splits the both sides at triple-valve body 2; Inclined tube 6 on the described triple-valve body 2 is parallel to each other, and its nearly open centre of end of taking over is apart from convergence; And the line that described inclined tube 6 is arranged on the open centre in triple-valve body 2 outsides just in time passes the axle center of two lateral recumbent posture cylinder filter chambers 3.

Described spool 21 can in separated, switch operation changes the both sides independent operation into.Described filter chamber 3 and triple-valve body 2 etc. can vertically be placed.

In process of production, when filter chamber 3 is put into interlayer heating clamber 9, do highly location with the installing plate above the filter chamber 4; Horizontal location has rail mechanism, and the interface of filter chamber 3 just is very easy to join by the discharging opening 7 of inclined tube 6 with triple-valve body 2 like this.When tightening the puller bolt 11 at the mouth back side, filter chamber, can push the filter chamber to sealing surface 36 energetically, reach sealing function.After triple valve commutation was switched, not horse back release of the filter chamber that use allowed its maintenance high temperature, high pressure, and high polymer in this case can be along with the automatic cracking of the continuity of time, and is thinning.And under the state that keeps filter chamber's high temperature, bleed off high polymer; After cooling, from the gateway of filter chamber, put article such as water and catalyst again into.After adopting this structure that the filter chamber is installed, can keep the liquid of inside, filter chamber not flow out, and overcome other deficiency of the prior art.The filter chamber is installed, and puller bolt 11, water at high temperature can produce high pressure; And catalyst wherein etc. are more conducive to make high polymer cracking once more, until the cleaning of finishing filter and other production process.

Claims (3)

1. a chemical fibre melt spinning fondant filter comprises the heating clamber of strap clamp layer and is located at its interior column filter chamber, it is characterized in that described filter chamber (3) splits the both sides in triple-valve body (2); And the discharging opening (7) of being located at described triple-valve body (2) both sides by inclined tube (6) and be located on the interlayer heating clamber (9) level to the interface of adapter (8) and filter chamber (3) join.

2. chemical fibre melt spinning fondant filter as claimed in claim 1, the inclined tube (6) on the described triple-valve body of its feature (2) is parallel to each other, and its nearly open centre of end of taking over is apart from convergence.

3. chemical fibre melt spinning fondant filter as claimed in claim 1 or 2, the described inclined tube of its feature is for to be arranged on the through hole of offering on the triple-valve body (2), and the line at its triple-valve body (2) outer openings center just in time passes the axle center of two lateral recumbent posture cylinder filter chambers (3).

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