CN212594288U

CN212594288U - Novel polyester fiber raw material oxidation mother liquor filtration system

Info

Publication number: CN212594288U
Application number: CN202021075000.5U
Authority: CN
Inventors: 彭怀杰; 王再雄
Original assignee: Nanjing Xiong Kai Filter Equipment Co ltd
Current assignee: Nanjing Xiong Kai Filter Equipment Co ltd
Priority date: 2020-06-11
Filing date: 2020-06-11
Publication date: 2021-02-26
Anticipated expiration: 2030-06-11

Abstract

The utility model relates to a polyester fiber raw materials oxidation mother liquor filters technical field, and discloses a novel polyester fiber raw materials oxidation mother liquor filtration system, including first centrifugal pump, second centrifugal pump and cross-flow filter, the export of former feed inlet and concentrate has been seted up respectively to cross-flow filter's top and bottom, and cross-flow filter's lateral wall has still seted up the export of pure liquid, the delivery outlet of first centrifugal pump and the fixed intercommunication of input port of second centrifugal pump, the delivery outlet and the fixed intercommunication setting of raw materials mouth of second centrifugal pump, the fixed intercommunication of concentrate export has the discharging pipe, and the fixed intercommunication of lateral wall of discharging pipe has first pipe, the other end of first pipe and the fixed intercommunication of input port of second centrifugal pump. The utility model discloses can carry out the mother liquor of a lot of and filter, improve its filter effect, can recoil to every filter core uniformly, improve the effect and the filterable speed of filter core clearance, and then guarantee the life and the effect of filter core.

Description

Novel polyester fiber raw material oxidation mother liquor filtration system

Technical Field

The utility model relates to a polyester fiber raw materials oxidation mother liquor filters technical field, especially relates to a novel polyester fiber raw materials oxidation mother liquor filtration system.

Background

The production of the polyester fiber raw material mainly comprises two stages of an oxidation stage and a refining stage. The first stage is an oxidation stage, PX (p-xylene) is used as a raw material, acetic acid is used as a solvent, cobalt manganese acetate is used as a catalyst, hydrogen bromide is used as an accelerator, air is used as an oxidant, the raw materials are fully mixed and oxidized at high temperature to generate TA (terephthalic acid), slurry discharged from an oxidation reactor is cooled by a crystallizer to separate out a large amount of TA particles, and the TA particles are separated from polyester fiber raw material oxidation mother liquor through solid-liquid separation operation.

At present, the process of filtering and separating the polyester fiber raw material oxidation mother liquor is mostly finished by a centrifugal pump and a cross flow filter, while the filtering process in the prior art is mostly single circulation, the filtering and separating effect is poor, and the filter residue accumulated on a filter element of the cross flow filter is poor in cleaning effect, so that the use of people is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the filtration process among the prior art is more that the single circulates, and the filtration separation effect is relatively poor, and is relatively poor to collecting up the filter residue clearance effect on cross-flow filter core, influences people's use, and the novel polyester fiber raw materials oxidation mother liquor filtration system who provides.

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

a novel polyester fiber raw material oxidation mother liquor filtering system comprises a first centrifugal pump, a second centrifugal pump and a cross-flow filter, wherein a raw material port and a concentrated solution outlet are respectively formed in the top and the bottom of the cross-flow filter, a pure solution outlet is further formed in the side wall of the cross-flow filter, an output port of the first centrifugal pump is fixedly communicated with an input port of the second centrifugal pump, an output port of the second centrifugal pump is fixedly communicated with the raw material port, a discharge pipe is fixedly communicated with the concentrated solution outlet, a first guide pipe is fixedly communicated with the side wall of the discharge pipe, the other end of the first guide pipe is fixedly communicated with an input port of the second centrifugal pump, a second guide pipe is fixedly communicated with the pure solution outlet, the second guide pipe is fixedly communicated with the input port of the first centrifugal pump, a plurality of filter elements are symmetrically arranged in the cross-flow filter, and positioning plates are arranged on the upper side and the, the side walls of the two positioning plates are fixedly connected with the inner wall of the cross-flow filter, the upper end and the lower end of the plurality of filter elements are fixedly communicated with the two positioning plates, the plurality of filter elements are internally provided with air injection pipes, the two ends of each air injection pipe penetrate through the two openings of the filter elements and extend outwards, the side walls of the plurality of air injection pipes are provided with a plurality of air outlets, and the upper side and the lower side of the plurality of air injection pipes are respectively provided with an inflating mechanism and a driving mechanism.

Preferably, the inflation mechanism comprises a rectangular pipe and a fan, one end of the rectangular pipe is fixedly connected with the inner wall of the cross-flow filter, the other end of the rectangular pipe penetrates through the inner wall of the cross-flow filter and extends outwards, the open end of the rectangular pipe is located outside the cross-flow filter, the fan is fixedly connected with the outer wall of the cross-flow filter through a first mounting seat, the output end of the fan and one end of the rectangular pipe extending to the outside are fixedly connected and fixedly connected with each other, one end of each of the plurality of air injection pipes penetrates through the side wall of the rectangular pipe and extends into the rectangular pipe, and the plurality of air injection pipes are rotatably connected with the rectangular pipe through sealing bearings.

Preferably, the driving mechanism comprises a driving motor, a rotating rod, a cam block and a movable rod, the side wall of the movable rod is provided with a plurality of round holes matched with the gas ejector pipes, and the side wall of the round hole is fixedly connected with a fixed block, the other ends of the plurality of gas injection pipes respectively penetrate through the plurality of round holes and extend outwards, the outer walls of the plurality of gas injection pipes are provided with annular corrugated grooves matched with the fixed blocks, the cam block is positioned below the movable rod, and the side wall of the circumferential surface of the cam block is symmetrically provided with two arc-shaped ring grooves, the bottom of the movable rod is symmetrically and fixedly connected with two arc-shaped blocks, and the two arc blocks are respectively positioned in the two arc ring grooves, the cam block is fixedly sleeved with the rotating rod, and one end of the rotating rod penetrates through the inner wall of the cross-flow filter and extends outwards, the driving motor is fixedly connected with the outer wall of the cross-flow filter through the second mounting seat, and the output end of the driving motor is fixedly connected with one end of the rotating rod, which extends to the outside, of the rotating rod.

Preferably, the bottom of the inner wall of the cross-flow filter is symmetrically and fixedly connected with two support rods, and the other ends of the two support rods penetrate through the side wall of the movable rod and extend outwards.

Preferably, the outer wall of the discharge pipe is fixedly provided with an electromagnetic valve, and the electromagnetic valve is arranged below the first guide pipe.

Preferably, the cam block and the plurality of gas ejector pipes are arranged in a staggered mode.

Preferably, ten filter elements are arranged in a plurality of the filter elements, and the plurality of the filter elements are all metal membrane filter elements using double openings.

Preferably, the output port of the first centrifugal pump is fixedly communicated with the input port of the second centrifugal pump through a sealing flange.

Preferably, the bottom of the cross-flow filter is conical.

Compared with the prior art, the utility model provides a novel polyester fiber raw materials oxidation mother liquor filtration system possesses following beneficial effect:

1. this novel polyester fiber raw materials oxidation mother liquor filtration system, through first centrifugal pump and the second centrifugal pump that is equipped with, can carry the mother liquor to the cross-flow filter in through the raw material mouth, and through a plurality of filter cores that are equipped with, filter the mother liquor, the mother liquor after the filtration carries out cyclic utilization in purified liquid export and the second pipe reentrant container to first centrifugal pump input port, the discharging pipe that the rethread is equipped with, the concentrate passes through the discharging pipe and the input port of first pipe input to the second centrifugal pump, carry out centrifugation filtration again, improve the filter effect of mother liquor.

2. The novel polyester fiber raw material oxidation mother liquor filtering system is characterized in that a fan is arranged, the fan is started to blow wind into a rectangular pipe, and the wind is sprayed out through a plurality of air spraying pipes, so that a plurality of filter elements are uniformly backflushed, the filter element cleaning effect is improved, then a driving motor is arranged, the output end of the driving motor rotates to drive a rotating rod to rotate, and further a cam block is driven to rotate, and then an arc-shaped ring groove and an arc-shaped block are arranged, so that the movable rod can be driven to move up and down when the cam block rotates, and then a fixed block is arranged in a round hole in the movable rod, an annular corrugated groove can slide along the fixed block in the up and down moving process of the movable rod, so that the air spraying pipes rotate, the air spraying effect is improved, the backflushing effect of the filter elements is further improved, the use by people is facilitated, and mother, increasing the filtering speed.

The part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, the utility model discloses can carry out the mother liquor filtration many times, improve its filter effect, can carry out the recoil to every filter core uniformly, improve the effect and the filterable speed of filter core clearance, and then guarantee the life and the effect of filter core.

Drawings

FIG. 1 is a schematic structural diagram of a novel polyester fiber raw material oxidation mother liquor filtration system provided by the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is an enlarged view of a portion B of FIG. 1;

fig. 4 is a schematic structural view of the middle fixing block and the annular corrugated groove of the present invention.

In the figure: the device comprises a first centrifugal pump 1, a second centrifugal pump 2, a cross-flow filter 3, a discharge pipe 4, a first guide pipe 5, a second guide pipe 6, a filter element 7, a positioning plate 8, an air injection pipe 9, a rectangular pipe 10, a fan 11, a driving motor 12, a rotating rod 13, a cam block 14, a movable rod 15, a fixed block 16, an annular corrugated groove 17, an arc block 18, a supporting rod 19 and an electromagnetic valve 20.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, a novel polyester fiber raw material oxidation mother liquor filtration system comprises a first centrifugal pump 1, a second centrifugal pump 2 and a cross-flow filter 3, wherein the top and the bottom of the cross-flow filter 3 are respectively provided with a raw material port and a concentrated solution outlet, the side wall of the cross-flow filter 3 is also provided with a pure solution outlet, the output port of the first centrifugal pump 1 is fixedly communicated with the input port of the second centrifugal pump 2, the output port of the second centrifugal pump 2 is fixedly communicated with the raw material port, the concentrated solution outlet is fixedly communicated with a discharge pipe 4, the side wall of the discharge pipe 4 is fixedly communicated with a first conduit 5, the other end of the first conduit 5 is fixedly communicated with the input port of the second centrifugal pump 2, the pure solution outlet is fixedly communicated with a second conduit 6, the second conduit 6 is fixedly communicated with the input port of the first centrifugal pump 1, a plurality of filter elements 7 are symmetrically arranged in the, and the upper and lower both sides of a plurality of filter cores 7 are equipped with locating plate 8, the lateral wall of two locating plates 8 all with cross-flow filter 3's inner wall fixed connection, the upper and lower both ends of a plurality of filter cores 7 are equallyd divide do not with the fixed intercommunication setting of two locating plates 8, all be equipped with jet-propelled pipe 9 in a plurality of filter cores 7, and two openings and the outside extension of filter core 7 are all passed at the both ends of jet-propelled pipe 9, a plurality of gas outlets have all been seted up to the lateral wall of a plurality of jet-propelled pipe 9, the upper and lower both sides of a plurality of jet-propelled pipe.

The mechanism of aerifing includes rectangular pipe 10 and fan 11, the one end of rectangular pipe 10 and cross-flow filter 3's inner wall fixed connection, the other end of rectangular pipe 10 runs through cross-flow filter 3's inner wall and outwards extends, and the open end of rectangular pipe 10 is located cross-flow filter 3's outside setting, fan 11 is through the outer wall fixed connection of first mount pad with cross-flow filter 3, and fan 11's output and rectangular pipe 10 extend to the fixed cover of the one end of outside and connect the setting, the one end of a plurality of jet-propelled pipes 9 all runs through the lateral wall of rectangular pipe 10 and extends to in the rectangular pipe 10, and a plurality of jet-propelled pipes 9 all rotate with rectangular pipe 10 through sealed bearing and are connected the setting.

The driving mechanism comprises a driving motor 12, a rotating rod 13, a cam block 14 and a movable rod 15, wherein the side wall of the movable rod 15 is provided with a plurality of round holes matched with the air injection pipes 9, the side wall of each round hole is fixedly connected with a fixed block 16, the other ends of the air injection pipes 9 respectively penetrate through the round holes and extend outwards, the outer walls of the air injection pipes 9 are provided with annular corrugated grooves 17 matched with the fixed blocks 16, the cam block 14 is positioned below the movable rod 15, the side wall of the circumferential surface of the cam block 14 is symmetrically provided with two arc-shaped annular grooves, the bottom of the movable rod 15 is symmetrically and fixedly connected with two arc-shaped blocks 18, the two arc-shaped blocks 18 are respectively positioned in the two arc-shaped annular grooves, the cam block 14 is fixedly sleeved with the rotating rod 13, one end of the rotating rod 13 penetrates through the inner wall of the cross-flow filter 3 and extends outwards, the driving motor 12 is fixedly connected with, and the output end of the driving motor 12 is fixedly connected with one end of the rotating rod 13 extending to the outside.

The bottom of the inner wall of the cross-flow filter 3 is symmetrically and fixedly connected with two support rods 19, and the other ends of the two support rods 19 penetrate through the side wall of the movable rod 15 and extend outwards, so that the use stability of the movable rod 15 can be improved.

The outer wall fixed mounting of discharging pipe 4 has solenoid valve 20, and solenoid valve 20 is located the below setting of first pipe 5, can control opening and closing of discharging pipe 4, is convenient for the discharge of filter residue.

The cam block 14 and the plurality of gas ejector pipes 9 are arranged in a staggered mode, and the influence of the rotation of the cam block 14 on the gas ejector pipes 9 is prevented.

The filter elements 7 are ten, and the filter elements 7 are metal film filter elements with double openings, so that the service life of the filter elements 7 can be ensured.

The output port of the first centrifugal pump 1 is fixedly communicated with the input port of the second centrifugal pump 2 through a sealing flange, so that the stability of the fixed communication is improved.

The bottom of the cross-flow filter 3 is arranged in a conical shape, so that filter residues can flow conveniently.

In the utility model, when in use, mother liquor can be conveyed into the cross flow filter 3 through the raw material port by the first centrifugal pump 1 and the second centrifugal pump 2, and the mother liquor is filtered by the plurality of filter elements 7, the filtered mother liquor is re-input into the container of the input port of the first centrifugal pump 1 through the pure liquor outlet and the second conduit 6 for cyclic utilization, and then is input into the input port of the second centrifugal pump 2 through the discharge pipe 4 and the first conduit 5 for re-centrifugal filtration by the discharge pipe 4 and the first conduit 5, thereby improving the filtration effect of the mother liquor, and then the fan 11 is arranged, the fan 11 is started to blow wind into the rectangular pipe 10 and spray out through the plurality of air spraying pipes 9, thereby evenly back-flushing the plurality of filter elements 7, improving the cleaning effect of the filter elements 7, and then passes through the driving motor 12, the output end of the driving motor 12 rotates to drive the rotating rod 13, and then drive cam block 14 and rotate, arc annular groove and arc piece 18 that the rethread was equipped with, can drive movable rod 15 when cam block 14 rotates and reciprocate, fixed block 16 that sets up in the round hole on rethread movable rod 15, it can make annular ripple groove 17 slide along fixed block 16 to reciprocate the in-process at movable rod 15, thereby make jet-propelled pipe 9 rotate, and then improve jet-propelled effect, further improve the effect to the recoil of filter core 7, be convenient for people's use, can recoil mother liquor in the filtering process simultaneously, improve its filterable speed.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A novel polyester fiber raw material oxidation mother liquor filtering system comprises a first centrifugal pump (1), a second centrifugal pump (2) and a cross-flow filter (3), and is characterized in that a raw material port and a concentrated solution outlet are respectively formed in the top and the bottom of the cross-flow filter (3), a pure solution outlet is further formed in the side wall of the cross-flow filter (3), an output port of the first centrifugal pump (1) is fixedly communicated with an input port of the second centrifugal pump (2), an output port of the second centrifugal pump (2) is fixedly communicated with the raw material port, a concentrated solution outlet is fixedly communicated with a discharge pipe (4), the side wall of the discharge pipe (4) is fixedly communicated with a first guide pipe (5), the other end of the first guide pipe (5) is fixedly communicated with an input port of the second centrifugal pump (2), and a pure solution outlet is fixedly communicated with a second guide pipe (6), the second guide pipe (6) is fixedly communicated with an input port of the first centrifugal pump (1), a plurality of filter elements (7) are symmetrically arranged in the cross-flow filter (3), positioning plates (8) are arranged on the upper side and the lower side of each filter element (7), the side walls of the two positioning plates (8) are fixedly connected with the inner wall of the cross-flow filter (3), the upper ends and the lower ends of the plurality of filter elements (7) are fixedly communicated with the two positioning plates (8), the plurality of filter elements (7) are internally provided with jet pipes (9), the two ends of each jet pipe (9) penetrate through two openings of each filter element (7) and extend outwards, the side walls of the plurality of jet pipes (9) are provided with a plurality of air outlets, and the upper sides and the lower sides of the plurality of jet pipes (9) are provided with an inflating mechanism and a driving mechanism respectively.

2. The novel polyester fiber raw material oxidation mother liquor filtering system as claimed in claim 1, it is characterized in that the air charging mechanism comprises a rectangular pipe (10) and a fan (11), one end of the rectangular pipe (10) is fixedly connected with the inner wall of the cross-flow filter (3), the other end of the rectangular pipe (10) penetrates through the inner wall of the cross-flow filter (3) and extends outwards, and the open end of the rectangular pipe (10) is arranged outside the cross-flow filter (3), the fan (11) is fixedly connected with the outer wall of the cross-flow filter (3) through a first mounting seat, the output end of the fan (11) and one end of the rectangular tube (10) extending to the outside are fixedly sleeved and connected, one end of each of the plurality of air injection tubes (9) penetrates through the side wall of the rectangular tube (10) and extends into the rectangular tube (10), and a plurality of gas injection pipes (9) are rotatably connected with the rectangular pipe (10) through sealing bearings.

3. The novel polyester fiber raw material oxidation mother liquor filtering system is characterized in that the driving mechanism comprises a driving motor (12), a rotating rod (13), a cam block (14) and a movable rod (15), a plurality of round holes matched with the gas injection pipes (9) are formed in the side wall of the movable rod (15), a fixed block (16) is fixedly connected to the side wall of each round hole, the other ends of the gas injection pipes (9) respectively penetrate through the round holes and extend outwards, an annular corrugated groove (17) matched with the fixed block (16) is formed in the outer wall of each gas injection pipe (9), the cam block (14) is located below the movable rod (15), two arc-shaped ring grooves are symmetrically formed in the side wall of the circumferential surface of the cam block (14), two arc-shaped blocks (18) are symmetrically and fixedly connected to the bottom of the movable rod (15), and the two arc-shaped blocks (18) are respectively located in the two arc-shaped ring grooves, the cam block (14) is fixedly sleeved with the rotating rod (13), one end of the rotating rod (13) penetrates through the inner wall of the cross-flow filter (3) and extends outwards, the driving motor (12) is fixedly connected with the outer wall of the cross-flow filter (3) through the second mounting seat, and the output end of the driving motor (12) is fixedly connected with one end, extending to the outside, of the rotating rod (13).

4. The novel polyester fiber raw material oxidation mother liquor filtering system is characterized in that two supporting rods (19) are symmetrically and fixedly connected to the bottom of the inner wall of the cross-flow filter (3), and the other ends of the two supporting rods (19) penetrate through the side wall of the movable rod (15) and extend outwards.

5. The novel polyester fiber raw material oxidation mother liquor filtering system is characterized in that an electromagnetic valve (20) is fixedly mounted on the outer wall of the discharging pipe (4), and the electromagnetic valve (20) is arranged below the first guide pipe (5).

6. The novel polyester fiber raw material oxidation mother liquor filtering system is characterized in that the cam block (14) and the plurality of gas injection pipes (9) are arranged in a staggered mode.

7. The novel polyester fiber raw material oxidation mother liquor filtering system as claimed in claim 1, wherein ten filter elements (7) are provided, and each filter element (7) is a metal membrane filter element with double openings.

8. The novel polyester fiber raw material oxidation mother liquor filtering system is characterized in that an output port of the first centrifugal pump (1) is fixedly communicated with an input port of the second centrifugal pump (2) through a sealing flange.

9. The system for filtering the oxidation mother liquor of the polyester fiber raw material as claimed in claim 1, wherein the bottom of the cross-flow filter (3) is arranged in a conical shape.