CN219540067U

CN219540067U - Polyurethane waste silk redissolution stirred tank

Info

Publication number: CN219540067U
Application number: CN202321202059.XU
Authority: CN
Inventors: 韦蕊; 华雪娇; 程璐; 蔡雪峰; 孙柯
Original assignee: Jiangyin LV Chemical Fiber Process Technologies Co ltd
Current assignee: Jiangyin LV Chemical Fiber Process Technologies Co ltd
Priority date: 2023-05-18
Filing date: 2023-05-18
Publication date: 2023-08-18
Anticipated expiration: 2033-05-18

Abstract

The utility model relates to a polyurethane waste silk redissolution stirring kettle which comprises a tank body, a driving assembly, a stirring main shaft, a stirrer and a bottom bearing seat, wherein the tank body is a vertical tank with a clamping sleeve, a shaft sleeve, a first connecting plate, a first stirring blade and a vertical scraping plate form a double-layer multi-blade structure at the upper part of the stirrer, the shaft sleeve, a second connecting plate, a second stirring blade and a special-shaped scraping plate form a special-shaped frame structure at the bottom of the stirrer, the shaft sleeve is provided with 3 special-shaped frame structures, the shaft sleeve is uniformly distributed in the axial direction of the stirring main shaft at equal intervals, the first connecting plates at the upper layer and the lower layer connected with the shaft sleeve are mutually perpendicular, and the first connecting plate at the upper layer is parallel to the second connecting plate. The special-shaped frame type stirring at the bottom and the double layers of multiple blades at the upper part are combined into a incompletely connected stirring whole, so that dead angle-free stirring of solid-liquid mixture is realized, and a simple and rapid dissolving process is achieved; the scraper blade and stirring connecting plate carry out the high-efficient transmission with the heat energy difference of material together.

Description

Polyurethane waste silk redissolution stirred tank

Technical Field

The utility model relates to the technical field of spandex production equipment, in particular to a spandex waste silk redissolution stirring kettle.

Background

In the process of producing spandex by adopting a dry spinning technology, a lot of waste silk can be produced in the processes of switching technology, silk winding and winding, fault maintenance and the like, and the waste silk rate of ton silk is about 1%. The waste spandex filaments are heated, stirred and dissolved in a stirred tank by adding DMAC solvent to obtain crude stock solution, and the crude stock solution is filtered, defoamed, matured, spun and the like to finally obtain the finished spandex filaments, so that the recovery and re-spinning of the waste spandex filaments are realized, and the production cost is reduced for spandex production enterprises.

The stirrer of the traditional polyurethane waste silk redissolution stirring kettle is a frame stirrer, and the frame stirrer can cause peripheral hydraulic movement in the stirring process of a high-viscosity medium, and the central liquid flow is almost motionless. The single stirring blade is difficult in heat transfer and mass transfer, so that the temperature of materials in the tank is difficult to be uniform, the temperature fluctuation of the materials is overlarge, the materials in the stirring kettle are a mixture in a solid-liquid state at first, a stirring dead angle is formed along with the increase of the viscosity of a medium in a gap between the stirrer and the inner wall of the stirring kettle, the materials are adhered and hung to form insoluble blocky materials, and the quality of crude stock solution is finally influenced.

Therefore, in order to solve the above background problems, it is urgent to develop a stirring kettle suitable for re-dissolving the waste spandex filaments.

Disclosure of Invention

The utility model aims to overcome the defects and provide a polyurethane waste silk redissolution stirring kettle, which achieves the purposes of improving the stirring effect and eliminating the temperature fluctuation of crude stock solution.

The purpose of the utility model is realized in the following way:

the utility model provides a spandex waste silk heavy solution stirred tank, includes a jar body, drive assembly, stirring main shaft, agitator and bottom bearing frame, and drive assembly drive stirring main shaft rotates, and the stirring main shaft runs through whole jar body, is fixed in on the central line of jar body through bottom bearing frame, jar body is the vertical jar of taking the jacket, and the agitator includes axle sleeve, first connecting plate, first stirring vane, perpendicular scraper blade, second connecting plate, second stirring vane and dysmorphism scraper blade, axle sleeve, first connecting plate, first stirring vane and perpendicular scraper blade constitute the double-deck multilobe structure on upper portion, and axle sleeve, second connecting plate, second stirring vane and dysmorphism scraper blade constitute the dysmorphism frame structure of bottom, and the axle sleeve is equipped with 3, and the equidistance equipartition is in the axial of stirring main shaft, and the first connecting plate mutually perpendicular of upper and lower floor with the hub connection is located the first connecting plate and the second connecting plate parallel of upper strata.

Preferably, the left and right sides of the two shaft sleeves positioned above are vertically welded with first connecting plates, the first stirring blades are welded on two sides of the first connecting plates at an angle of 45 degrees, and the vertical scraping plates are fixed at the tail ends of the first connecting plates;

a shaft sleeve positioned below is vertically welded with a second connecting plate left and right, second stirring blades are welded on two sides of the second connecting plate at an angle of 45 degrees, and a bottom special-shaped scraping plate is fixed at the tail end of the second connecting plate.

Preferably, the vertical scraping plate and the special-shaped scraping plate are consistent with the outline of the inner wall of the tank body.

Preferably, the shaft sleeve is split, and the two split shaft sleeves are connected and hooped on the stirring main shaft through bolts.

Preferably, the bottom bearing seat is of a detachable structure and comprises a supporting sleeve, a partition plate, a bearing sleeve and a sleeve rod, wherein the supporting sleeve is welded with the tank body, the partition plate is annularly welded with the supporting sleeve and the tank body respectively, the sleeve rod extends into the supporting sleeve from the outside and is fixed with the supporting sleeve through a bolt, the bearing sleeve is sleeved at the inner end of the sleeve rod, and the tail end of the stirring main shaft is inserted out of the bearing sleeve.

Preferably, the outer diameter of the bearing sleeve is smaller than the inner diameter of the supporting sleeve, and the bearing sleeve and the sleeve rod are integrally disassembled when the bearing sleeve is disassembled.

The beneficial effects of the utility model are as follows:

the special-shaped frame type stirring at the bottom and the double layers of multiple blades at the upper part are combined into a stirring whole which is not completely connected, so that dead angle stirring of solid-liquid mixture is realized, and a simple and rapid dissolving process is realized;

the vertical scraping plate and the special-shaped scraping plate are consistent with the outline of the inner wall of the tank body, so that the outer edge of the stirrer can be scraped to the inner wall of the tank body all the time, the wall-hanging condensation of materials is prevented, and the continuous operation of a stirring system is ensured;

the stirring blade which is 45 degrees with the horizontal is arranged on the stirring connection plate, so that the material is fully contacted with the solvent, the scraping plate continuously scrapes the wall to realize the axial flow of the material, and meanwhile, the stirring connection plate and the stirring connection plate are used for efficiently transferring the heat energy difference of the material, so that the temperature fluctuation of the material is eliminated, and the viscosity of the crude stock solution finally generated is stable and controllable.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a special stirring kettle for redissolving waste spandex filaments in the embodiment of the utility model;

FIG. 2 is a schematic view of a tank structure according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of a driving assembly according to an embodiment of the present utility model;

FIG. 4 is a schematic structural view of a stirring main shaft according to an embodiment of the present utility model;

FIG. 5 is a schematic view showing the structure of a stirrer according to an embodiment of the present utility model;

fig. 6 is a schematic structural view of a bottom bearing seat according to an embodiment of the present utility model.

Wherein: a tank 1; 1.1 parts of upper sealing heads; an inner cylinder 1.2; 1.3 parts of an inner cylinder lower seal head; a jacket cylinder 1.4; 1.5 parts of jacket lower end socket; a drive assembly 2; a drive motor 2.1; a speed reducer 2.2; a coupling 2.3; a frame 2.4; mechanical seal 2.5; a stirring main shaft 3; a stirrer 4; a sleeve 4.1; a first connection plate 4.2; a first stirring blade 4.3; a vertical squeegee 4.4; a second connection plate 4.5; a second stirring blade 4.6; 4.7, a special-shaped scraping plate; a bottom bearing seat 5; a supporting sleeve 5.1; a separator 5.2; 5.3 parts of bearing sleeve; and a loop bar 5.4.

Detailed Description

Referring to fig. 1-6, the utility model relates to a polyurethane waste silk redissolution stirring kettle, which comprises a tank body 1, a driving assembly 2, a stirring main shaft 3, a stirrer 4 and a bottom bearing seat 5, wherein the tank body 1 is a vertical tank with a jacket, a stable temperature is provided for redissolution of polyurethane waste silk in the tank, the complete dissolution of the waste silk is ensured, the driving assembly 2 drives the stirring main shaft 3 to rotate, the stirring main shaft 3 penetrates through the whole tank body 1 and is fixed on the central line of the tank body 1 through the bottom bearing seat 5, the stirrer 4 comprises a shaft sleeve 4.1, a first connecting plate 4.2, a first stirring blade 4.3, a vertical scraping plate 4.4, a second connecting plate 4.5, a second stirring blade 4.6 and a special-shaped scraping plate 4.7, the shaft sleeve 4.1, the first connecting plate 4.2, the first stirring blade 4.3 and the vertical scraping plate 4.4 form a double-layer multi-blade structure at the upper part, and the shaft sleeve 4.1, the second connecting plate 4.5, the second stirring blade 4.6 and the special-shaped scraping plate 4.7 form a special-shaped structure at the bottom.

The shaft sleeves 4.1 are split, the two split shaft sleeves are connected and hooped on the stirring main shaft 3 through bolts, the total number of the shaft sleeves 4.1 is 3, the shaft sleeves 4.1 are uniformly distributed in the axial direction of the stirring main shaft 3 at equal intervals, the left and right sides of the two shaft sleeves 4.1 positioned above are vertically welded with the first connecting plates 4.2, the first stirring blades 4.3 are welded on the two sides of the first connecting plates 4.2 at an angle of 45 degrees, and the vertical scraping plates 4.4 are fixed at the tail ends of the first connecting plates 4.2; the left and right sides of a shaft sleeve 4.1 positioned below are vertically welded with a second connecting plate 4.5, second stirring blades 4.6 are welded on two sides of the second connecting plate 4.5 at an angle of 45 degrees, and a bottom special-shaped scraping plate 4.7 is fixed at the tail end of the second connecting plate 4.5.

The first connecting plates 4.2 of the upper layer and the lower layer connected with the shaft sleeve 4.1 are mutually perpendicular, the first connecting plates 4.2 positioned on the upper layer are parallel to the second connecting plates 4.5, the staggering of 3 groups of stirring blades is realized, and the stirring effect is improved.

The vertical scraping plate, the special-shaped scraping plate and the contour of the inner wall of the tank body are consistent, the vertical scraping plate 4.4 and the bottom special-shaped scraping plate 4.7 are made of polytetrafluoroethylene materials, and each scraping plate is in soft contact with the inner wall of the stirring kettle during wall hanging, so that the effect of protecting the inner wall of the stirring kettle is achieved, gaps between the vertical scraping plate 4.4, the bottom special-shaped scraping plate 4.7 and the wall of the tank body are almost zero, the whole tank body is guaranteed to have no stirring dead angle, and the optimal wall scraping effect can be achieved.

The tank body 1 consists of an upper sealing head 1.1, an inner cylinder body 1.2, an inner cylinder lower sealing head 1.3, a jacket cylinder body 1.4 and a jacket lower sealing head 1.5. The upper end enclosure 1.1 is provided with a stirring port for installing the driving assembly 2, the outer part of the inner cylinder body 1.2 is provided with a jacket cylinder body 1.4, and the outer part of the inner cylinder lower end enclosure 1.3 is provided with a jacket lower end enclosure 1.5 for providing a stable reaction environment for the stirring kettle. The external portion of jar body 1 sets up the jacket barrel, and jar body 1 low head sets up the discharge gate, and jar body 1 upper end enclosure sets up charge door and DMAC solvent import, and drive assembly 2 installs on jar body 1 upper end enclosure, provides stable reaction environment through jacket heating, discharges through the discharge gate of low head after the waste silk fully dissolves.

The driving assembly 2 consists of a driving motor 2.1, a speed reducer 2.2, a coupler 2.3, a frame 2.4 and a mechanical seal 2.5, and the whole driving assembly 2 drives the stirring main shaft 3 to rotate through the coupler 2.3.

The bottom bearing seat 5 is of a detachable structure, and is convenient to install and maintain. The bottom bearing seat 5 comprises a supporting sleeve 5.1, a partition plate 5.2, a bearing sleeve 5.3 and a sleeve rod 5.4, wherein the supporting sleeve 5.1 is welded with the tank body 1, the center of an opening is consistent with the center of the tank body 1, the partition plate 5.2 is annularly welded with the supporting sleeve 5.1 and the tank body 1 respectively, the sleeve rod 5.4 extends into the supporting sleeve 5.1 from the outside and is fixed with the supporting sleeve 5.1 through bolts, the bearing sleeve 5.3 is sleeved at the inner end of the sleeve rod 5.1 and is fixed through bolts, and the stirring main shaft 3 penetrates through the tail end of the whole tank body 1 and is inserted out of the bearing sleeve 5.3, and a limiting groove is formed at the tail end of the stirring main shaft 3 corresponding to the bearing sleeve 5.3. The outer diameter of the bearing sleeve 5.3 is smaller than the inner diameter of the supporting sleeve 5.1, and the bearing sleeve 5.3 and the sleeve rod 5.4 are integrally disassembled when the bearing sleeve is disassembled.

In addition to the above embodiments, the present utility model also includes other embodiments, and all technical solutions that are formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of the present utility model.

Claims

1. The utility model provides a spandex waste silk heavy solution stirred tank, includes a jar body, drive assembly, stirring main shaft, agitator and bottom bearing frame, and drive assembly drive stirring main shaft rotates, and the stirring main shaft runs through whole jar body, is fixed in on jar body's the central line through bottom bearing frame, its characterized in that: the tank body is a vertical tank with a clamping sleeve, the stirrer comprises a shaft sleeve, a first connecting plate, first stirring blades, vertical scraping plates, a second connecting plate, second stirring blades and special-shaped scraping plates, the shaft sleeve, the first connecting plate, the first stirring blades and the vertical scraping plates form a double-layer multi-blade structure on the upper portion, the shaft sleeve, the second connecting plate, the second stirring blades and the special-shaped scraping plates form a special-shaped frame structure on the bottom, the shaft sleeve is provided with 3 special-shaped frame structures, the shaft sleeve is uniformly distributed in the axial direction of the stirring main shaft at equal intervals, the first connecting plates on the upper layer and the lower layer connected with the shaft sleeve are mutually perpendicular, and the first connecting plates on the upper layer are parallel to the second connecting plates.

2. The polyurethane waste silk redissolution stirring kettle according to claim 1, wherein: the left and right sides of the two shaft sleeves positioned above are vertically welded with first connecting plates, the first stirring blades are welded on two sides of the first connecting plates at an angle of 45 degrees, and the vertical scraping plates are fixed at the tail ends of the first connecting plates;

3. The polyurethane waste silk redissolution stirring kettle according to claim 1, wherein: the vertical scraping plate and the special-shaped scraping plate are consistent with the outline of the inner wall of the tank body.

4. The polyurethane waste silk redissolution stirring kettle according to claim 1, wherein: the shaft sleeve is split, and the two split shaft sleeves are connected and hooped on the stirring main shaft through bolts.

5. The polyurethane waste silk redissolution stirring kettle according to claim 1, wherein: the bottom bearing seat is of a detachable structure and comprises a supporting sleeve, a partition plate, a bearing sleeve and a sleeve rod, wherein the supporting sleeve is welded with the tank body, the partition plate is annularly welded with the supporting sleeve and the tank body respectively, the sleeve rod extends into the supporting sleeve from the outside and is fixed with the supporting sleeve through a bolt, the bearing sleeve is sleeved at the inner end of the sleeve rod, and the tail end of the stirring main shaft is inserted out of the bearing sleeve.

6. The polyurethane waste silk redissolution stirring kettle according to claim 5, wherein: the external diameter of the bearing sleeve is smaller than the internal diameter of the supporting sleeve, and when the bearing sleeve is disassembled, the bearing sleeve and the loop bar are integrally disassembled.