CN211611652U

CN211611652U - Wiped film evaporator

Info

Publication number: CN211611652U
Application number: CN201921919459.6U
Authority: CN
Inventors: 陈建章
Original assignee: Ji'an Yongxiang Silicon New Material Co ltd
Current assignee: Ji'an Yongxiang Silicon New Material Co ltd
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2020-10-02
Anticipated expiration: 2029-11-08

Abstract

The utility model relates to an evaporimeter technical field just discloses a wiped film evaporator, the novel nipple rectifier comprises a cylindrical shel, positive reverse motor is installed at the top of barrel, the output shaft fixedly connected with pivot of positive reverse motor, the thread bush has been cup jointed in the pivot, the both ends fixedly connected with bracing piece of thread bush, the tip fixedly connected with backup pad of bracing piece, the side-mounting of backup pad has the scraper blade. The positive and negative rotation through positive and negative motor rotates, in addition the combination of thread bush and pivot external screw thread, make the scraper blade can be in appointed within range, be axial motion along the pivot, make the different positions of scraper blade reciprocating motion, make the feed liquid at the decline in-process, the scraper blade constantly follows the removal of feed liquid and removes, make the feed liquid also can guarantee when descending evenly to revolve to flow down, make the dispersion of feed liquid more even, accelerate the concentration of feed liquid, reduce the phenomenon of feed liquid scale deposit, only need a small amount of scraper blade can strike off the feed liquid evenly simultaneously.

Description

Wiped film evaporator

Technical Field

The utility model relates to an evaporimeter technical field specifically is a wiped film evaporator.

Background

A wiped film evaporator suitable for high-viscosity, heat-sensitive, easily crystallized and scaled materials is composed of heating jacket with heated steam and scraper installed to the rotary axle and with a small gap (usually 0.5-1.5 mm) between scraper and internal wall of heating jacket.

The working principle of the existing scraper film evaporator is that a feed liquid enters a cylinder body through a feed inlet, the feed liquid is uniformly sprayed onto the inner wall of the cylinder body through a material distribution disc in the cylinder body, then a motor drives a rotating shaft to enable a scraper to rotate, the feed liquid on the inner wall of the cylinder body is scraped uniformly to form a film layer, the film layer is continuously evaporated and concentrated in the descending process, a finished liquid is discharged from the bottom, secondary steam escapes from the top, the existing scraper only can scrape the range of the rotation of the scraper when scraping the feed liquid, the scraper cannot scrape the upper part and the lower part of the scraper, the feed liquid is continuously converged together in the descending process, the feed liquid cannot be rapidly concentrated, the scale is gradually condensed on the inner wall of the cylinder body in the flowing process to form scale, the thickness of scale inside the cylinder body is continuously increased, the thickness of the inner wall of the cylinder body is continuously thickened, and the, lead to the scraper blade constantly to scrape the barrel inner wall, the wearing and tearing of serious aggravation barrel and scraper blade, new feeding liquid receives the influence of scale deposit simultaneously, and the flow resistance increase further increases the scale deposit scope of barrel, if increase the scraper blade, then leads to the gravity of pivot to increase, and the wearing and tearing of further aggravation pivot lead to the pivot appear rocking when rotating, further increase the wearing and tearing between scraper blade and the barrel, influence the use of barrel.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a wiped film evaporator possesses anti-scaling, the even advantage of feed liquid, has solved the problem of scraper blade wearing and tearing, feed liquid scale deposit.

The utility model provides a following technical scheme: the utility model provides a wiped film evaporator, includes the barrel, positive reverse motor is installed at the top of barrel, the output shaft fixedly connected with pivot of positive reverse motor, the thread bush has been cup jointed in the pivot, the both ends fixedly connected with bracing piece of thread bush, the tip fixedly connected with backup pad of bracing piece, the side-mounting of backup pad has the scraper blade, the equal fixed mounting in both sides of thread bush has first magnetic path, install the second magnetic path that is located first magnetic path both sides in the pivot, first magnetic path and second magnetic path are homopolar repulsion state mutually.

Preferably, the rotating shaft is provided with an external thread, the threaded sleeve is internally provided with an external thread, and the external thread on the rotating shaft is in threaded connection with the internal thread in the threaded sleeve.

Preferably, the side of the supporting plate is fixedly connected with a bolt, a groove is formed in the scraper, the end of the bolt is inserted into the scraper through the groove, a positioning sleeve is fixedly mounted on the inner wall of the groove, the end of the bolt penetrates through the outer portion of the positioning sleeve and is in sliding connection with the inner wall of the positioning sleeve, an arc-shaped rubber pad is mounted on the top wall of the groove, and the top end of the bolt is in contact with the bottom of the rubber pad.

Preferably, rotate in the pivot and install the branch charging tray, fixedly connected with is located the inside stop collar of branch charging tray in the pivot, the outer lane department fixed mounting of stop collar has four branch material poles, four the bottom of dividing the material pole rotates with the top of dividing the charging tray to be connected, and the tip of dividing the material pole is three horn shapes, fixed mounting has the support frame in the pivot, the top of support frame rotates with the bottom of dividing the charging tray to be connected.

Compared with the prior art, the utility model discloses possess following beneficial effect:

1. this wiped film evaporator, it is rotatory to rotate just reversing through just reversing motor, in addition the combination of thread bush and pivot external screw thread, make the scraper blade can be in appointed within range, axial motion is done along the pivot, make the scraper blade can reciprocating motion different positions, make the feed liquid at the decline in-process, the scraper blade constantly follows the removal of feed liquid and removes, make the feed liquid also can guarantee when descending evenly to revolve to flow down, make the dispersion of feed liquid more even, accelerate the concentration of feed liquid, reduce the phenomenon of feed liquid scale deposit, only need a small amount of scraper blade can strike off the feed liquid evenly simultaneously, thereby slow down the weight of pivot, make the terminal degree of wear of pivot weaken, thereby make the pivot remain vertical rotation throughout, increase the use durability of scraper blade and barrel.

2. This wiped film evaporator, through the batch pan, the cooperation between feed rod and the stop collar, make the scraper blade when striking off the feed liquid, the part adheres to the feed liquid on the scraper blade, receive gravity and centrifugal force's influence, drip to on the batch pan, again by following stop collar pivoted feed rod, strike off the edge of feed liquid to the feed pan entirely, receive feed rod pivoted centrifugal force again, get rid of the feed liquid to the barrel once more, make the probability of structure on the scraper blade reduce on the one hand, make the quality of scraper blade unchangeable, guarantee that the scraper blade keeps the symmetry, on the other hand increases pivot pivoted stability, make the scraper blade of twice symmetry keep the same weight, get rid of the feed liquid on the scraper blade to the barrel again simultaneously and concentrate, increase the concentrated probability of feed liquid.

3. This wiped film evaporator, through the cooperation of bolt and scraper blade for the scraper blade only needs to insert the bolt in the appointed slotted hole of scraper blade when changing, can be fixed with the scraper blade, and the effect of recycling centrifugal force can drive the scraper blade and expand to vertical state, makes the change and the maintenance of scraper blade obtain very big improvement, slows down the change step of scraper blade, thereby reduces the down time of barrel, increases the concentration of feed liquid.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged schematic view of the squeegee;

FIG. 3 is a side view of the squeegee;

fig. 4 is a schematic structural diagram of the distributing tray.

In the figure: 1. a barrel; 2. a positive and negative rotation motor; 3. a rotating shaft; 4. a threaded sleeve; 5. an external thread; 6. a support bar; 7. a support plate; 8. a squeegee; 9. a bolt; 10. a groove; 11. a positioning sleeve; 12. a first magnetic block; 13. a second magnetic block; 14. distributing disks; 15. a limiting sleeve; 16. a material distributing rod; 17. a support frame.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, a wiped film evaporator comprises a barrel 1, a forward and reverse rotation motor 2 is installed on the top of the barrel 1, a forward and reverse rotation circuit of the forward and reverse rotation motor 2 adopts the prior known technology, meanwhile, a control technology of the forward and reverse rotation motor 2 also adopts the known technology, the forward and reverse rotation time of the forward and reverse rotation motor 2 and the distance between a threaded sleeve 4, a first magnetic block 12 and a second magnetic block 13 are controlled to be in a proper state, the model of the forward and reverse rotation motor 2 is 52ZYT89-R, an output shaft of the forward and reverse rotation motor 2 is fixedly connected with a rotating shaft 3, the threaded sleeve 4 is sleeved on the rotating shaft 3, support rods 6 are fixedly connected with two ends of the threaded sleeve 4, a support plate 7 is fixedly connected with the end of the support rod 6, a scraper 8 is installed on the side surface of the support plate 7, a certain distance is provided between the support plate 7 and, when the scraping plate 8 contacts the inner wall of the cylinder body 1, the cylinder body can automatically contract back to a certain position, the contact force between the inner wall of the cylinder body 1 and the scraping plate 8 is reduced, thereby prolonging the service life of the scraper 8 and the cylinder 1, the two sides of the thread bush 4 are both fixedly provided with the first magnetic blocks 12, the rotating shaft 3 is provided with the second magnetic blocks 13 positioned at two sides of the first magnetic block 12, the first magnetic block 12 and the second magnetic block 13 are in a homopolar repulsion state, the principle of magnetic repulsion is utilized, after the threaded sleeve 4 moves to a certain position, the force of the magnetic repulsion is increased continuously, thereby slowing down the moving speed of the threaded sleeve 4, simultaneously utilizing the principle of repulsion to push the threaded sleeve 4 back to the opposite direction, therefore, the rotating force of the rotating shaft 3 is saved, the scraper 8 can automatically rotate in a certain direction, the first magnetic blocks 12 and the second magnetic blocks 13 are arranged in pairs, and every two first magnetic blocks 12 and every two second magnetic blocks 13 are in a repellent state.

Wherein, external screw thread 5 has been seted up on the pivot 3 external screw thread 5 has been seted up in the thread bush 4, the internal thread spiro union in external screw thread 5 on the pivot 3 and the thread bush 4 utilizes the principle of lead screw for thread bush 4 can be according to 3 pivoted directions of pivot, and automatic upwards and downwards for scraper blade 8 can remove different positions, thereby the homogeneity of diffusion feed liquid prevents the feed liquid scale deposit.

Wherein, the side of the supporting plate 7 is fixedly connected with a bolt 9, the scraper 8 is provided with a groove 10, the groove 10 is cross-shaped, the transverse groove 10 is arranged, so that the scraper 8 can rotate along the axis of the bolt 9 by different angles, the scraper 8 is optimized into movable connection by rigid connection, the vertical groove 10 is arranged, the installation of the scraper 8 is convenient, when the scraper 8 is damaged, the scraper 8 can be pulled out of the bolt 9 only by pulling the scraper 8 to move upwards, the scraper 8 can be installed by aligning the groove 10 with the end of the bolt 9 during the installation, the scraper 8 can be installed, the end of the bolt 9 is inserted into the scraper 8 through the groove 10, the inner wall of the groove 10 is fixedly provided with a positioning sleeve 11, the end of the bolt 9 penetrates through the outer part of the positioning sleeve 11 and is connected with the inner wall of the positioning sleeve 11 in a sliding manner, the top wall of the groove 10 is provided with, the top end of the bolt 9 contacts the bottom of the rubber pad.

Wherein, the rotating shaft 3 is rotatably provided with a material distribution disc 14, when the rotating shaft 3 rotates, the material distribution disc 14 does not rotate, the rotating shaft 3 is fixedly connected with a limit sleeve 15 positioned inside the material distribution disc 14, when the rotating shaft 3 rotates, the limit sleeve 15 is driven to rotate, so as to drive the material distribution rod 16 to rotate, and the material liquid on the material distribution disc 14 is scraped, the outer ring of the limit sleeve 15 is fixedly provided with four material distribution rods 16, the bottom of the four material distribution rods 16 is rotatably connected with the top of the material distribution disc 14, the end part of the material distribution rod 16 is triangular, the rotating shaft 3 is fixedly provided with a support frame 17, the top of the support frame 17 is rotatably connected with the bottom of the material distribution disc 14, the material distribution disc 14 is fixed and supported, the scraper 8 scrapes part of the material liquid onto the scraper 8, meanwhile, the material liquid flowing into the upper part of the scraper can be adsorbed on the scraper 8, the liquid drops on the material distribution disc 14, and is thrown onto the cylinder 1 by the centrifugal force generated by the rotation of the material distribution rod 16, so that the material liquid cannot be accumulated, and the concentration of the material liquid is intensified.

The working principle is that the feed liquid enters the inside of the barrel body 1 from the feed inlet, then the forward and reverse rotating motor 2 drives the rotating shaft 3 to rotate, then drives the threaded sleeve 4, the supporting rod 6 and the scraper 8 to rotate, the feed liquid on the inner wall of the barrel body 1 is scraped completely, the rotating shaft 3 is influenced by threads in the rotating process, when the rotating shaft 3 rotates forward, the threaded sleeve 4 and the scraper 8 are driven to move from bottom to top, after the rotating shaft moves to a certain position, the first magnetic block 12 and the second magnetic block 13 are in continuous contact, the rotation of the scraper 8 is gradually blocked by utilizing the principle that magnetic force repels, then the forward and reverse rotating motor 2 rotates reversely, the magnetic force plus the repulsion principle drives the threaded sleeve 4 and the scraper 8 to rotate from top to bottom, when the scraper 8 is continuously accumulated, the feed liquid is influenced by gravity to drip on the distributing plate 14, then the rotating limiting sleeve 15 drives the distributing rod 16 to rotate, and the feed liquid on the distributing, the scraper 8 is scraped again, after the scraper 8 is gradually worn, the damaged scraper 8 is pulled upwards to be taken out, and then the groove 10 on the new scraper 8 is aligned with the end part of the bolt 9 and inserted to replace the new scraper 8.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A wiped film evaporator comprising a barrel (1) and characterized in that: a forward and reverse rotation motor (2) is arranged at the top of the cylinder body (1), an output shaft of the forward and reverse rotation motor (2) is fixedly connected with a rotating shaft (3), a thread sleeve (4) is sleeved on the rotating shaft (3), an external thread (5) is arranged on the rotating shaft (3), an internal thread is arranged in the threaded sleeve (4), an external thread (5) on the rotating shaft (3) is in threaded connection with the internal thread in the threaded sleeve (4), two ends of the threaded sleeve (4) are fixedly connected with supporting rods (6), the end parts of the supporting rods (6) are fixedly connected with supporting plates (7), a scraper (8) is arranged on the side surface of the supporting plate (7), first magnetic blocks (12) are fixedly arranged on both sides of the threaded sleeve (4), second magnetic blocks (13) positioned at two sides of the first magnetic block (12) are arranged on the rotating shaft (3), the first magnetic block (12) and the second magnetic block (13) are in the same-pole repulsion state.

2. The wiped film evaporator of claim 1 wherein: the side fixedly connected with bolt (9) of backup pad (7), set up fluted (10) on scraper blade (8), the tip of bolt (9) passes through recess (10) and pegs graft in the inside of scraper blade (8), the inner wall fixed mounting of recess (10) has position sleeve (11), the tip of bolt (9) run through the outside of position sleeve (11) and with the inner wall sliding connection of position sleeve (11), the arc rubber pad is installed to the roof of recess (10), the top of bolt (9) contacts to the bottom of rubber pad.

3. The wiped film evaporator of claim 1 wherein: rotate in pivot (3) and install branch charging tray (14), fixedly connected with is located branch charging tray (14) inside stop collar (15) in pivot (3), the outer lane department fixed mounting of stop collar (15) has four branch material poles (16), four the bottom of branch material pole (16) rotates with the top of branch charging tray (14) to be connected, and the tip of dividing material pole (16) is three horn shapes, fixed mounting has support frame (17) in pivot (3), the top of support frame (17) rotates with the bottom of branch charging tray (14) to be connected.