CN218924078U - Polyester melt filter cartridge cleaning system - Google Patents

Abstract

The utility model relates to the technical field of melt filter cartridge cleaning equipment, and particularly discloses a polyester melt filter cartridge cleaning system which comprises a hydrolysis unit, an alkaline cleaning unit and a high-pressure flushing unit which are sequentially arranged, wherein the hydrolysis unit comprises a hydrolysis furnace, the bottom of the hydrolysis furnace is provided with a slag outlet, and the side wall of the hydrolysis furnace is provided with a steam inlet; a supporting mechanism is arranged in the hydrolysis furnace, and a gap is arranged between the top of the supporting mechanism and the bottom of the hydrolysis furnace. By adopting the technical scheme provided by the utility model, the technical problems that the prior art of the cleaning equipment for the polyester melt filter element is not suitable for cleaning the polyester melt filter element and cannot effectively clean the polyester melt filter element, so that the filtering effect is poor and the product quality is reduced can be solved.

Description

Polyester melt filter cartridge cleaning system

Technical Field

The utility model relates to the technical field of melt filter cartridge cleaning equipment, in particular to a polyester melt filter cartridge cleaning system.

Background

In the polyester industry, polyester melt filters are used to filter impurities in high temperature polyester melt and to provide acceptable raw materials for downstream processes to ensure continued production. The polyester melt filter mainly comprises a filter cylinder which is integrally cylindrical, and a plurality of filter elements which are arranged in the filter cylinder; the top opening of the filter cartridge is used for feeding, and the bottom of the filter cartridge is provided with a discharge hole. The polyester melt filter after long-time use is easy to accumulate a large amount of oxidized melt and other impurities in the filter cylinder and on the filter element, and the filter cylinder and the filter element need to be cleaned regularly so as to avoid influencing the filtering effect of the polyester melt filter and avoid the reduction of the product quality.

The utility model provides a have more belt cleaning device to polyester fuse-element filter core among the prior art, for example authorize belt cleaning device of fuse-element filter core of bulletin number CN217410064U, including wasing the jar, wash jar lower extreme be equipped with wash jar looks insert the fixed steam generation subassembly of formula bolted connection, be equipped with support grid bottom plate between steam generation subassembly and the wash jar, be equipped with the fuse-element filter core in the wash jar, be equipped with support grid bottom plate looks insert formula screwed connection fixed filter core direction unable adjustment base between fuse-element filter core lower extreme and the support grid bottom plate, wash jar upper end be equipped with wash jar looks bolted connection fixed end cover, be equipped with between end cover lower extreme and the fuse-element filter core with fuse-element looks press the pressure disk of inlaying the formula of cup jointing fixed, the end cover upper end is equipped with the pressure release discharge valve that is linked together with the wash jar. The cleaning device solves the problem of cleaning the melt filter element.

However, there are few cleaning devices for polyester melt filter cartridges in the prior art, and because the structure and size of the polyester melt filter cartridges are different from those of the polyester melt filter cartridges, the existing cleaning devices for polyester melt filter cartridges are also difficult to directly use for cleaning the polyester melt filter cartridges. Even if the cleaning device of the melt filter core is amplified according to the equal proportion of the size of the polyester melt filter core, the supporting grid bottom plate and the filter core guiding fixing base of the cleaning device are difficult to effectively support the polyester melt filter core due to the fact that the weight of the filter core is much larger than that of a single filter core, and the expected cleaning effect cannot be achieved.

Therefore, there is a need for a cleaning apparatus for a polyester melt filter cartridge that effectively cleans the polyester melt filter cartridge to remove oxidized melt and other impurities accumulated in the polyester melt filter cartridge, thereby improving the filtering effect and the product quality.

Disclosure of Invention

The utility model aims to provide a cleaning system for a polyester melt filter cartridge, which aims to solve the technical problems that the prior art is not suitable for cleaning the polyester melt filter cartridge and cannot effectively clean the polyester melt filter cartridge, so that the filtering effect is poor and the product quality is reduced.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the polyester melt filter cartridge cleaning system comprises a hydrolysis unit, an alkaline washing unit and a high-pressure flushing unit which are sequentially arranged, wherein the hydrolysis unit comprises a hydrolysis furnace, a slag outlet hole is formed in the bottom of the hydrolysis furnace, and a steam inlet is formed in the side wall of the hydrolysis furnace; a supporting mechanism is arranged in the hydrolysis furnace, and a gap is arranged between the top of the supporting mechanism and the bottom of the hydrolysis furnace.

The principle and the advantages of the scheme are as follows:

after a period of use, the polyester melt filter is usually attached with impurities such as oxidized polyester melt, dialogue, impurities, carbon black, powder generated by mechanical abrasion and the like in a filter cylinder and a filter element, wherein the viscosity and the adhesive force of the oxidized polyester melt are high, and the oxidized polyester melt is difficult to thoroughly clean.

When the polyester melt filter cylinder is cleaned, the polyester melt filter cylinder is lifted into a hydrolysis furnace of a hydrolysis unit by adopting lifting equipment to hydrolyze, specifically, high-temperature steam is introduced into the hydrolysis furnace through a steam inlet, and the oxidized melt is decomposed by utilizing the high-temperature steam, so that the oxidized polyester melt accumulated in the polyester melt filter cylinder is rapidly hydrolyzed under the action of the high-temperature steam to generate small molecules, the oxidized melt loses high viscosity and high adhesive force, is easy to separate from the filter cylinder, and impurities which are partially separated fall to the bottom of the hydrolysis furnace and are discharged from a slag hole to the hydrolysis furnace for centralized collection treatment. After hydrolysis is completed, the polyester melt filter cylinder is lifted to an alkaline washing unit by lifting equipment for alkaline washing, specifically, a discharge hole of the polyester melt filter cylinder is blocked, alkali liquor is injected into the polyester melt filter cylinder through an opening at the top of the polyester melt filter cylinder for soaking, and the adhesive force of small molecules and other types of impurities attached to the polyester melt filter cylinder is further reduced. And finally, hoisting the polyester melt filter cylinder to a high-pressure flushing unit by using hoisting equipment, and flushing the polyester melt filter cylinder at high pressure to thoroughly remove small molecules and other types of impurities attached to the polyester melt filter cylinder, so as to thoroughly clean the polyester melt filter cylinder.

1. According to the scheme, the cleaning system is arranged for the polyester melt filter cylinder, the adhesive force of various impurities can be gradually reduced by the hydrolysis unit and the alkaline washing unit, so that the impurities attached to the polyester melt filter cylinder are easy to clean, the impurities attached to the polyester melt filter cylinder are thoroughly removed by the high-pressure flushing unit, the polyester melt filter cylinder can be effectively cleaned, the integral filtering effect of the polyester melt filter in the subsequent use process is ensured, and the product quality is ensured.

2. According to the scheme, the supporting mechanism is arranged in the hydrolysis furnace, a gap is reserved between the top of the supporting mechanism and the bottom of the hydrolysis furnace, after the polyester melt filter cylinder is hoisted into the hydrolysis furnace, the supporting mechanism supports the polyester melt filter cylinder in the hydrolysis furnace, so that a gap is reserved between the bottom of the polyester melt filter cylinder and the bottom of the hydrolysis furnace, high-temperature steam introduced into the hydrolysis furnace can fully contact with the bottom of the polyester melt filter cylinder, and impurities attached to the bottom of the polyester melt filter cylinder are effectively hydrolyzed; and can make the interval between polyester melt filter cylinder bottom and the slag hole of slagging tap, avoid polyester melt filter cylinder bottom to block up the slag hole, lead to follow the impurity that breaks away from on the polyester melt filter cylinder can't be discharged from the slag hole smoothly and silted up in the hydrolysis furnace, and then reattach in the bottom of polyester melt filter cylinder, be favorable to improving the hydrolysis effect of polyester melt filter cylinder to improve whole cleaning performance.

Preferably, as an improvement, the supporting mechanism comprises a chassis, the bottom of the chassis is fixedly connected with a plurality of connecting ribs, and one end of each connecting rib, which is far away from the chassis, is fixedly connected with the inner wall of the hydrolysis furnace.

By adopting the scheme, the chassis is fixedly connected with the inner wall of the hydrolysis furnace through the connecting ribs, and the polyester melt filter cylinder is placed on the chassis, so that the requirement of clearance between the bottom of the polyester melt filter cylinder and the bottom of the hydrolysis furnace can be met, and the device is simple in structure and convenient to manufacture; and impurity that drops on the polyester melt filter cylinder also can drop to the hydrolysis furnace bottom from between a plurality of connecting rods and between the lateral wall of chassis and the hydrolysis furnace inner wall to discharge the hydrolysis furnace smoothly through going out the slag hole and concentrate collection processing, avoid impurity to pile up on supporting mechanism, be favorable to maintaining the cleanness in the hydrolysis furnace, reduce the frequency of clearing up the hydrolysis furnace.

Preferably, as an improvement, a stand mechanism is further arranged in the hydrolysis furnace and is fixedly connected to the top of the chassis.

By adopting the scheme, after the chassis top is fixedly connected with the erecting mechanism, the polyester melt filter cylinder is lifted onto the chassis, the erecting mechanism can separate the bottom of the polyester melt filter cylinder from the chassis, so that the bottom of the polyester melt filter cylinder is prevented from being directly contacted with the chassis to cause the discharge port of the polyester melt filter cylinder to be plugged, the impurities falling off from the inside of the polyester melt filter cylinder can be smoothly discharged through the discharge port, and the falling impurities are prevented from being accumulated at the bottom of the polyester melt filter cylinder, so that the cleaning effect of the polyester melt filter cylinder is improved.

Preferably, as an improvement, the stand mechanism comprises a plurality of stand bars which are horizontally arranged, and the stand bars are mutually parallel and are arranged at equal intervals.

By adopting the scheme, the erecting mechanism is arranged into a plurality of erecting ribs which are horizontally arranged, and firstly, the structure is simple, and the manufacture is convenient; secondly, the height of the erecting mechanism can be effectively controlled, and the problem that the top of the polyester melt filter cylinder cannot be completely placed into a hydrolysis furnace due to the fact that the height of the erecting mechanism is too high is avoided, so that the hydrolysis effect of the top of the polyester melt filter cylinder is affected. In addition, a plurality of stand ribs are arranged in parallel and at equal intervals, so that the stand ribs can provide uniform supporting force for the bottom of the polyester melt filter cylinder, and the position stability of the polyester melt filter cylinder in the hydrolysis process is ensured.

Preferably, as an improvement, a water outlet is formed in the chassis, and penetrates through the chassis along the vertical direction.

By adopting the scheme, the water outlet penetrating through the chassis along the vertical direction is formed in the chassis, condensed steam on the inner wall of the polyester melt filter cylinder slides along the inner wall of the polyester melt filter cylinder and is discharged from the discharge hole, the steam can flow to the edge of the chassis along the gap between two adjacent stand ribs so as to fall to the bottom of the hydrolysis furnace, the steam can directly fall to the bottom of the hydrolysis furnace from the water outlet, the efficiency of the condensed water falling to the bottom of the hydrolysis furnace from the chassis is improved by the arrangement of the water outlet, excessive accumulation of the condensed water on the chassis is avoided, and mixed falling impurities in the condensed water are contacted with the bottom of the polyester melt filter cylinder again so as to be reattached on the polyester melt filter cylinder.

Preferably, as an improvement, the alkaline washing unit comprises an alkaline washing table and a steam coil, wherein the alkaline washing table is used for placing the polyester melt filter cylinder, and the steam coil is placed into the polyester melt filter cylinder from the top opening of the polyester melt filter cylinder.

After hydrolysis is completed, the polyester melt filter cylinder is lifted to the alkaline washing table by adopting lifting equipment, the discharge hole of the polyester melt filter cylinder is plugged, alkali liquor is injected into the polyester melt filter cylinder, a steam coil pipe is placed into the polyester melt filter cylinder from the top opening of the polyester melt filter cylinder, the alkali liquor in the polyester melt filter cylinder is heated by the steam coil pipe, the alkaline washing effect is improved, the adhesion force of micromolecules and other types of impurities attached to the polyester melt filter cylinder is further reduced, and the impurities on the polyester melt filter cylinder are thoroughly removed in a high-pressure flushing unit, so that the integral cleaning effect of the polyester melt filter cylinder is improved.

Preferably, as an improvement, the alkaline washing unit further comprises an alkaline liquor collecting furnace, and an alkaline liquor furnace cover is detachably connected to the top of the alkaline liquor collecting furnace.

By adopting the scheme, the alkali liquor collecting furnace is arranged, the alkali liquor furnace cover is detachably connected to the top of the alkali liquor collecting furnace, after alkali washing of the polyester melt filter cylinder is completed, the alkali liquor furnace cover is opened, the polyester melt filter cylinder is lifted to the alkali liquor collecting furnace, the discharge port of the polyester melt filter cylinder is aligned to the top of the alkali liquor collecting furnace, the blocking of the discharge port of the polyester melt filter cylinder is opened, alkali liquor in the polyester melt filter cylinder is discharged to the alkali liquor collecting furnace for collection, so that the polyester melt filter cylinder can be continuously used in the next alkali washing until the alkali liquor concentration does not reach the alkali washing requirement, and new alkali liquor is replaced for alkali washing, so that the consumption of the alkali liquor can be greatly reduced, and the washing cost of the polyester melt filter cylinder is reduced.

Preferably, as an improvement, two cushion blocks are arranged on the alkaline washing table, and the distance between the two cushion blocks is smaller than the diameter of the polyester melt filter cylinder.

By adopting the scheme, two cushion blocks are arranged on the alkaline washing table, the distance between the two cushion blocks is smaller than the diameter of the polyester melt filter cylinder, and when the polyester melt filter cylinder is hoisted to the alkaline washing table, the cushion blocks can play a certain buffering role in placing the polyester melt filter cylinder, so that the polyester melt filter cylinder is prevented from being damaged due to collision with the alkaline washing table in the placing process, the service life of the polyester melt filter cylinder is prolonged, and the replacement cost of components of the polyester melt filter is reduced. In the alkaline washing process, the cushion block replaces the alkaline washing table to be directly contacted with the bottom of the polyester melt filter cylinder, so that the polyester melt filter cylinder heated by the steam coil is prevented from damaging the alkaline washing table, the service life of the alkaline washing table is prolonged, and the equipment replacement cost of a cleaning system is reduced.

Preferably, as an improvement, the high-pressure flushing unit comprises a flushing tank and a high-pressure water gun, a sewage drain pipe is communicated with the bottom of the flushing tank, and the size of the flushing tank is matched with the size of the polyester melt filter cylinder.

By adopting the scheme, the high-pressure flushing unit is arranged to comprise the flushing tank and the high-pressure water gun, after alkaline washing is completed, the polyester melt filter cylinder is lifted into the flushing tank through the lifting device, when a worker uses the high-pressure water gun to flush the polyester melt filter cylinder, the flushing tank can collect sewage mixed with impurities in the flushing process and is discharged in a concentrated mode through the sewage discharge pipeline, the sewage is prevented from overflowing around in the operation space, and the cleaning of the operation space is facilitated.

Preferably, as an improvement, the bottom of the hydrolysis furnace is conical, namely the diameter of the hydrolysis furnace gradually decreases from top to bottom, and a slag hole is formed at the bottom end of the hydrolysis furnace; the bottom of the hydrolysis furnace is fixedly connected with a reinforcing frame.

By adopting the scheme, the bottom of the hydrolysis furnace is set to be tapered with the diameter gradually reduced from top to bottom, the slag hole is formed in the bottom end of the hydrolysis furnace, impurities and falling condensed steam falling off from the polyester melt filter cylinder in the hydrolysis process can smoothly move to the slag hole along the inclined bottom of the hydrolysis furnace, so that the slag hole is discharged from the hydrolysis furnace to be concentrated for collection, and the impurities and the condensed steam are prevented from accumulating in the hydrolysis furnace to keep the hydrolysis furnace clean. The bottom fixed connection reinforcing frame at the hydrolysis stove, then reinforcing frame will hydrolysise stove steady stay on plane such as floor, and reinforcing frame's setting on the one hand conveniently holds conical hydrolysis stove bottom, on the other hand can also be for impurity and condensation vapor collection device headspace, makes things convenient for impurity and condensation vapor collection device's installation.

Drawings

Fig. 1 is a schematic front view of the hydrolysis unit in embodiment 1 of the present utility model.

Fig. 2 is a schematic top view of a hydrolysis unit according to embodiment 1 of the present utility model.

FIG. 3 is a schematic view showing the structure of the alkaline washing station in example 1 of the present utility model.

FIG. 4 is a schematic view showing the structure of an alkali liquor collecting furnace in example 1 of the present utility model.

Fig. 5 is a schematic diagram showing the structure of a high-pressure flushing unit in embodiment 1 of the present utility model.

Fig. 6 is a schematic front view of the hydrolysis unit in embodiment 2 of the present utility model.

Detailed Description

The following is a further detailed description of the embodiments:

reference numerals in the drawings of the specification include: the hydrolysis furnace 1, a slag hole 11, a steam inlet 12, a supporting mechanism 2, a chassis 21, a connecting rib 22, a water outlet 23, a erecting mechanism 3, an erecting rib 31, an alkaline washing table 4, a cushion block 41, a steam coil 5, an alkaline liquid collecting furnace 6, an alkaline liquid furnace cover 61, a mounting frame 62, a flushing tank 7, a high-pressure water gun 8, a reinforcing frame 9, a polyester melt filter cartridge 10, a shell 101, a heat preservation layer 102, a sealing cover 103, an air outlet 104 and a hanging ring 105.

Example 1

The polyester melt filter cartridge cleaning system comprises a hydrolysis unit, an alkaline washing unit and a high-pressure washing unit which are sequentially arranged.

As shown in fig. 1 and 2, the hydrolysis unit comprises a hydrolysis furnace 1, the top of the hydrolysis furnace 1 is opened, the bottom of the hydrolysis furnace 1 is conical, the diameter of the hydrolysis furnace 1 is gradually reduced from top to bottom, and a slag outlet 11 is formed in the bottom of the hydrolysis furnace 1. The bottom of the hydrolysis furnace 1 is fixedly welded with a reinforcing frame 9, and the bottom of the reinforcing frame 9 is fixedly connected to the ground through screws so as to realize the position fixation of the hydrolysis furnace 1. The side wall of the hydrolysis furnace 1 is provided with a steam inlet 12, and the steam inlet 12 is communicated with a steam conveying pipeline.

The hydrolysis furnace 1 is internally provided with a supporting mechanism 2, and a gap is arranged between the top of the supporting mechanism 2 and the bottom of the hydrolysis furnace 1. Specifically, the supporting mechanism 2 includes circular chassis 21, and the bottom welded fastening of chassis 21 has a plurality of connecting bars 22, and the one end that chassis 21 was kept away from to connecting bar 22 and the inner wall welded fastening of hydrolysising stove 1, and in this embodiment, the quantity of connecting bar 22 is four, and four connecting bars 22 are the cross and distribute to improve the supporting uniformity of connecting bar 22 to chassis 21, guarantee that the structural strength at each position of whole supporting mechanism 2 is unanimous basically. The chassis 21 is provided with a water outlet 23, and the water outlet 23 penetrates through the chassis 21 along the vertical direction. The hydrolysis furnace 1 is also internally provided with a stand mechanism 3, and the stand mechanism 3 is welded and fixed on the top of the chassis 21. Specifically, the stand mechanism 3 includes a plurality of stand bars 31 that are horizontally arranged, and a plurality of stand bars 31 are parallel to each other and are arranged at equal intervals, and in this embodiment, the number of stand bars 31 is 3, and the stand bars 31 are made of steel.

As shown in fig. 3, the caustic wash unit comprises a caustic wash stage 4 and a steam coil 5, wherein the caustic wash stage 4 is used for placing a polyester melt filter cartridge 10, and the steam coil 5 is placed into the polyester melt filter cartridge 10 from the top opening of the polyester melt filter cartridge 10 so as to heat the alkali liquor in the polyester melt filter cartridge 10. Two cushion blocks 41 are placed on the alkaline washing table 4, the two cushion blocks 41 are arranged in parallel, and the distance between the two cushion blocks 41 is smaller than the diameter of the polyester melt filter cartridge 10 so as to support the polyester melt filter cartridge 10 on the alkaline washing table 4. The alkali washing unit further comprises an alkali liquor collecting furnace 6 shown in fig. 4, an alkali liquor furnace cover 61 is detachably connected to the top of the alkali liquor collecting furnace 6, a flange plate is welded and fixed to the outer wall of the alkali liquor collecting furnace 6, the size of the alkali liquor furnace cover 61 is consistent with that of the flange plate, a plurality of connecting holes are formed in the alkali liquor furnace cover 61, and the alkali liquor furnace cover 61 is connected with the flange plate through bolts at the connecting holes. The bottom bolt fixedly connected with mounting bracket 62 of alkali lye collection stove 6, the bottom of mounting bracket 62 passes through screw fixed connection subaerial to realize the fixed position of alkali lye collection stove 6.

As shown in fig. 5, the high-pressure flushing unit comprises a flushing tank 7 and a high-pressure water gun 8, the size of the flushing tank 7 is matched with that of the polyester melt filter cartridge 10, namely the polyester melt filter cartridge 10 can be placed in the flushing tank 7, and a sewage drain pipe is communicated with the bottom of the flushing tank 7; the high-pressure water gun 8 is communicated with an external high-pressure water source through a flushing pipeline.

The specific implementation process is as follows:

(1) Hydrolysis is carried out in a hydrolysis unit: the polyester melt filter cylinder 10 is hoisted into the hydrolysis furnace 1 by hoisting equipment (such as an electric hoist), the polyester melt filter cylinder 10 and the hydrolysis furnace 1 are basically kept coaxial, at the moment, the top of the stand bar 31 is in contact with the bottom of the hydrolysis furnace 1, and then high-temperature steam is introduced into the hydrolysis furnace 1 from the steam inlet 12 through the steam conveying pipeline, so that the oxidized polyester melt attached to the polyester melt filter cylinder 10 is rapidly hydrolyzed under the action of the high-temperature steam to generate small molecules, thereby losing high viscosity and high adhesive force and being easy to separate from the polyester melt filter cylinder 10.

Impurities falling from the outer wall of the polyester melt filter cylinder 10 and condensed and slipped water vapor in the hydrolysis process fall to the bottom of the hydrolysis furnace 1 from the gap between two adjacent connecting ribs 22 and the gap between the chassis 21 and the inner wall of the hydrolysis furnace 1; the impurities falling off from the inner wall of the polyester melt filter cylinder 10 and condensed and slipped water vapor fall onto the chassis 21 from a discharge hole at the bottom of the polyester melt filter cylinder 10, flow to the edge of the chassis 21 from a gap between two adjacent studs 31, and then fall to the bottom of the hydrolysis furnace 1 or directly fall to the bottom of the hydrolysis furnace 1 from a water outlet 23; impurities and condensed water vapor falling to the bottom of the hydrolysis furnace 1 are discharged from the slag hole 11 and collected intensively.

(2) Alkali washing is carried out in an alkali washing unit: after hydrolysis is completed, lifting the polyester melt filter cylinder 10 from the hydrolysis furnace 1 to the alkaline washing table 4 by adopting lifting equipment (such as an electric hoist), supporting the polyester melt filter cylinder 10 on a cushion block 41, plugging a discharge hole at the bottom of the polyester melt filter cylinder 10, injecting alkali liquor into the polyester melt filter cylinder 10, then placing a steam coil 5 into the polyester melt filter cylinder 10 from an opening at the top of the polyester melt filter cylinder 10, allowing high-temperature steam to flow through the steam coil 5, transferring heat into the polyester melt filter cylinder 10 through the steam coil 5, heating alkali liquor in the polyester melt filter cylinder 10, and continuously steaming for 5 hours after the alkali liquor in the polyester melt filter cylinder 10 is heated to boil so as to further reduce the adhesion force of small molecules and other types of impurities attached to the polyester melt filter cylinder 10.

After the alkali washing is finished, an alkali liquor furnace cover 61 of the alkali liquor collecting furnace 6 is opened, then the polyester melt filter cylinder 10 and alkali liquor contained in the polyester melt filter cylinder 10 are hoisted to the position of the alkali liquor collecting furnace 6 by hoisting equipment (such as an electric hoist), so that a discharge hole of the polyester melt filter cylinder 10 is aligned with a top opening of the alkali liquor collecting furnace 6, then a plug at the discharge hole of the polyester melt filter cylinder 10 is opened, alkali liquor in the polyester melt filter cylinder 10 is discharged into the alkali liquor collecting furnace 6 for subsequent repeated use until the alkali liquor concentration does not reach the alkali washing requirement, and then new alkali liquor is replaced to carry out alkali washing of the polyester melt filter cylinder 10, thereby being beneficial to saving resources and controlling cost.

(3) High-pressure flushing is performed in a high-pressure flushing unit: after the alkali liquor in the polyester melt filter cartridge 10 is completely discharged into the alkali liquor collecting furnace 6, the alkali liquor furnace cover 61 is covered on the alkali liquor collecting furnace 6 again, the polyester melt filter cartridge 10 is lifted into the flushing tank 7 by adopting lifting equipment (such as an electric hoist), then a worker uses the high-pressure water gun 8 to flush the polyester melt filter cartridge 10, so that small molecules and other types of impurities which are attached to the polyester melt filter cartridge 10 and have been reduced in adhesive force in the hydrolysis and alkaline cleaning processes are thoroughly flushed from the polyester melt filter cartridge 10 by water flow sprayed by the high-pressure water gun 8, and the effective cleaning of the polyester melt filter cartridge 10 is realized.

The sewage mixed with impurities generated in the flushing process of the polyester melt filter cylinder 10 flows out from a sewage discharge pipeline communicated with the bottom of the flushing tank 7, so that the sewage cannot be deposited in the flushing tank 7 to cause secondary pollution to the polyester melt filter cylinder 10, cannot overflow into a work space, and is beneficial to maintaining the cleanness and the neatness of the work space.

Example 2

The polyester melt filter cartridge cleaning system, as shown in fig. 6, differs from example 1 in that: a shell 101 is sleeved outside the hydrolysis furnace 1, and an insulating layer 102 is filled between the shell 101 and the hydrolysis furnace 1; the top of the hydrolysis furnace 1 is detachably connected with a sealing cover 103, an air outlet 104 is formed in the sealing cover 103, and the top of the sealing cover 103 is fixedly connected with a hanging ring 105.

In this embodiment, the outer wall of the outer shell 101 and the outer wall of the hydrolysis furnace 1 are welded and fixed, the heat-insulating layer 102 is made of common heat-insulating materials such as a rock wool board, a phenolic resin foaming material, mineral wool or polystyrene foam board, and the like, and the reinforcing frame is welded and fixed at the bottom of the outer shell 101. The sealing cover 103 and the hydrolysis furnace 1 are detachably connected by bolts, specifically, the corresponding positions of the sealing cover 103 and the hydrolysis furnace 1 are welded and fixed with connecting lugs, connecting holes are formed in the connecting lugs, and the bolts penetrate through the connecting holes of the sealing cover 103 and the hydrolysis furnace 1 to realize the fixed connection of the sealing cover 103 and the hydrolysis furnace 1.

By adopting the scheme, in the hydrolysis process, the heat dissipation of high-temperature steam introduced into the hydrolysis furnace 1 can be reduced by the arrangement of the heat preservation layer 102 and the sealing cover 103, so that a better hydrolysis effect can be achieved, and the energy consumption can be reduced. The arrangement of the air outlet 104 can realize the exhaust of the hydrolysis furnace 1, and avoid the danger caused by the excessive pressure in the hydrolysis furnace 1. The lifting ring 105 is arranged at the bottom of the sealing cover 103, so that the lifting is more convenient.

The foregoing is merely exemplary of the present utility model, and specific technical solutions and/or features that are well known in the art have not been described in detail herein. It should be noted that, for those skilled in the art, several variations and modifications can be made without departing from the technical solution of the present utility model, and these should also be regarded as the protection scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the practical applicability of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims (10)

1. The polyester melt filter cartridge cleaning system is characterized in that: the device comprises a hydrolysis unit, an alkaline washing unit and a high-pressure flushing unit which are sequentially arranged, wherein the hydrolysis unit comprises a hydrolysis furnace, a slag outlet hole is formed in the bottom of the hydrolysis furnace, and a steam inlet is formed in the side wall of the hydrolysis furnace; a supporting mechanism is arranged in the hydrolysis furnace, and a gap is arranged between the top of the supporting mechanism and the bottom of the hydrolysis furnace.

2. The polyester melt filter cartridge cleaning system of claim 1, wherein: the supporting mechanism comprises a chassis, a plurality of connecting ribs are fixedly connected to the bottom of the chassis, and one end, away from the chassis, of each connecting rib is fixedly connected with the inner wall of the hydrolysis furnace.

3. The polyester melt filter cartridge cleaning system of claim 2, wherein: and a erecting mechanism is also arranged in the hydrolysis furnace and is fixedly connected to the top of the chassis.

4. The polyester melt filter cartridge cleaning system of claim 3, wherein: the erecting mechanism comprises a plurality of erecting ribs which are horizontally arranged, and the plurality of erecting ribs are mutually parallel and are arranged at equal intervals.

5. The polyester melt filter cartridge cleaning system of claim 4, wherein: and a water outlet is formed in the chassis and penetrates through the chassis along the vertical direction.

6. The polyester melt filter cartridge cleaning system of claim 1, wherein: the alkaline washing unit comprises an alkaline washing table and a steam coil, wherein the alkaline washing table is used for placing a polyester melt filter cylinder, and the steam coil is placed into the polyester melt filter cylinder from the top opening of the polyester melt filter cylinder.

7. The polyester melt filter cartridge cleaning system of claim 6, wherein: the alkaline washing unit further comprises an alkaline liquor collecting furnace, and an alkaline liquor furnace cover is detachably connected to the top of the alkaline liquor collecting furnace.

8. The polyester melt filter cartridge cleaning system of claim 7, wherein: two cushion blocks are arranged on the alkaline washing table, and the distance between the two cushion blocks is smaller than the diameter of the polyester melt filter cylinder.

9. The polyester melt filter cartridge cleaning system of claim 1, wherein: the high-pressure flushing unit comprises a flushing tank and a high-pressure water gun, a sewage drain pipe is communicated with the bottom of the flushing tank, and the size of the flushing tank is matched with the size of the polyester melt filter cylinder.

10. The polyester melt filter cartridge cleaning system of any one of claims 1-9, wherein: the bottom of the hydrolysis furnace is conical, namely the diameter of the hydrolysis furnace is gradually reduced from top to bottom, and a slag hole is formed in the bottom end of the hydrolysis furnace; the bottom of the hydrolysis furnace is fixedly connected with a reinforcing frame.

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