CN118084116A - Wall scraping type thin film evaporator for treating waste stripping liquid - Google Patents
Wall scraping type thin film evaporator for treating waste stripping liquid Download PDFInfo
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- CN118084116A CN118084116A CN202410519608.9A CN202410519608A CN118084116A CN 118084116 A CN118084116 A CN 118084116A CN 202410519608 A CN202410519608 A CN 202410519608A CN 118084116 A CN118084116 A CN 118084116A
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- Prior art keywords
- main shaft
- stripping liquid
- scraping
- waste stripping
- arc
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- 239000002699 waste material Substances 0.000 title claims abstract description 64
- 238000007790 scraping Methods 0.000 title claims abstract description 60
- 239000007788 liquid Substances 0.000 title claims abstract description 58
- 239000010409 thin film Substances 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 claims description 9
- 238000013016 damping Methods 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 38
- 238000001704 evaporation Methods 0.000 abstract description 14
- 230000008020 evaporation Effects 0.000 abstract description 13
- 239000010408 film Substances 0.000 abstract description 11
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 8
- 238000013461 design Methods 0.000 description 5
- 238000004064 recycling Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 235000015110 jellies Nutrition 0.000 description 2
- 239000008274 jelly Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002894 chemical waste Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/048—Purification of waste water by evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/08—Thin film evaporation
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention discloses a wall scraping type thin film evaporator for treating waste stripping liquid, which relates to the technical field of evaporators and comprises a shell, a main shaft, a scraping plate assembly and a driving motor, wherein the driving motor is arranged outside the shell and drives the main shaft to rotate in the shell, and the scraping plate assembly is fixed on the main shaft; the scraping plate assembly comprises scraping strips uniformly distributed on the outer side of the main shaft along the circumferential direction, and a connecting supporting rod arranged between the scraping strips and the main shaft, wherein the scraping strips are axially arranged along the main shaft. According to the invention, the rotation direction of the main shaft can be adjusted according to the viscosity degree of the waste stripping liquid, and the downward moving speed of the waste stripping liquid on the heating surface is improved through the scraper component, so that the film forming speed of the waste stripping liquid on the heating surface is improved, and the evaporation efficiency of the waste stripping liquid is improved; or the downward moving speed of the waste stripping liquid on the heating surface is slowed down, so that the contact time of the waste stripping liquid and the heating surface is prolonged, and the waste stripping liquid is ensured to reach the evaporation and concentration requirements after passing through the heating surface.
Description
Technical Field
The invention relates to the technical field of evaporators, in particular to a wall scraping type thin film evaporator for treating waste stripping liquid.
Background
The stripping solution is chemical waste liquid, and in order to realize the purpose of recycling resources, various waste stripping solution recycling technologies have been developed for recycling the effective components of the waste stripping solution, and the existing recycling technologies generally use a process combining evaporation and multi-tower rectification to treat the waste stripping solution.
The existing evaporation process mainly uses a scraped wall thin film evaporator to treat waste stripping liquid. The scraping film evaporator is one kind of film forming device with scraping plate assembly to force the material to form film continuously and homogeneously on the heating surface, so that the material may be spread to form film with relatively large area and the liquid in the material is evaporated to form vapor and then exhausted.
However, the scraper type thin film evaporator has the following defects in the use process: in general, the scrapped film evaporators with different types of evaporation intensity and evaporation area are required to be selected for evaporating the waste stripping liquid with different viscosities, so that the scrapped film evaporators with different types are required to be processed when the waste stripping liquid with different viscosities is processed, and the processing cost is greatly increased; meanwhile, the waste stripping liquid evaporators for processing different viscosities have different occupied areas, and the scraper type thin film evaporators with longer length and larger occupied area are required for processing materials with high viscosity and high water content.
Disclosure of Invention
The invention aims to provide a wall-scraping type thin film evaporator for treating waste stripping liquid, which solves the problems in the prior art.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
the invention provides a wall scraping type thin film evaporator for waste stripping liquid treatment, which comprises a shell, a main shaft, a scraping plate assembly and a driving motor, wherein the driving motor is arranged outside the shell and drives the main shaft to rotate in the shell;
The scraping plate assembly comprises scraping strips uniformly distributed on the outer side of the main shaft along the circumferential direction and a connecting supporting rod arranged between the scraping strips and the main shaft, the scraping strips are axially arranged along the main shaft, two ends of the connecting supporting rod are respectively connected with the scraping strips and the main shaft, one side, far away from the connecting supporting rod, of the scraping strips is provided with a tip end formed by two first inclined planes, and the scraping strips on two sides of the tip end are further provided with a first guide piece and a second guide piece;
The first guide piece comprises a first guide inclined plane connected with the first inclined plane on the same side of the first guide piece, the included angle between the first guide inclined plane and the corresponding first inclined plane from top to bottom is continuously decreased, the second guide piece comprises a second guide inclined plane connected with the first inclined plane on the same side of the second guide piece, and the included angle between the second guide inclined plane and the corresponding first inclined plane from top to bottom is continuously increased.
Further, the first guide piece further comprises a first arc-shaped surface which is connected with one side, far away from the tip, of the first guide inclined surface, the second guide piece further comprises a second arc-shaped surface which is connected with one side, far away from the tip, of the second guide inclined surface, the first arc-shaped surface and the second arc-shaped surface are tangent to the first guide inclined surface and the second guide inclined surface respectively, and the inner arc surfaces of the first arc-shaped surface and the second arc-shaped surface face one side, far towards the tip, of the second guide inclined surface.
Further, the cross sections of the first guide piece and the second guide piece comprise a first straight line side, a second straight line side and an arc side which are sequentially connected, the first straight line side in the axial direction of the main shaft forms a first strip section, the second straight line side in the axial direction of the main shaft forms a second strip section, and the arc side in the axial direction of the main shaft forms an arc section.
Further, one end of the connecting support rod is fixedly connected with the main shaft, the other end of the connecting support rod is rotationally connected with the scraping strip through a rotating shaft, the rotating shaft is arranged along the direction of the main shaft, and an angle limiting structure and a preloaded elastic structure are further arranged on the connecting support rod;
The angle limiting structure is used for limiting the relative deflection angle between the scraping strip and the connecting support rod, the preloaded elastic structure is used for providing elastic damping in the rotation process of the scraping strip and the connecting support rod, and when the included angle between the scraping strip and the connecting support rod is 180 degrees, the elastic damping provided by the preloaded elastic structure is minimum.
Further, one side of the scraping strip, which is close to the connecting support rod, is provided with an installation groove, the rotating shaft is vertically arranged in the installation groove, two ends of the rotating shaft are provided with clamping blocks, the clamping blocks are fixedly connected with the scraping strip on the upper side and the lower side of the installation groove, and one end, which is far away from the main shaft, of the connecting support rod is provided with a limiting hole which is matched with the rotating shaft;
The angle limiting structure comprises a positioning plate fixed on the clamping block and a limiting shaft fixed between the pair of positioning plates and penetrating through the circular arc-shaped through groove, the circle center of the circular arc-shaped through groove is positioned at one side of the rotating shaft, which is close to the main shaft, the central axis of the rotating shaft is intersected with the extension line of the radius of the main shaft, and the circle center of the circular arc-shaped through groove is positioned on the extension line of the radius of the main shaft;
the preloaded elastic structure comprises a first spring rod, the first spring rod is arranged on one side, close to the main shaft, of the circular arc-shaped through groove along the radial direction of the main shaft, the telescopic end of the first spring rod is rotationally connected with one end, far away from the clamping block, of the positioning plate, and the fixed end of the first spring rod is rotationally connected with the connecting support rod.
Further, the connecting struts are multiple, the connecting struts are uniformly arranged along the axial direction of the main shaft, and the number of the mounting grooves on the scraping strip is equal to that of the connecting struts.
Further, a locking structure is further arranged at the top of the connecting support rod between the limiting hole and the circular arc-shaped through groove, and the locking structure comprises a base plate, a U-shaped sliding strip and a second spring rod;
The base plate is fixed on connecting branch, and U type draw runner and connecting branch sliding fit and can only follow main shaft radial direction and slide, be provided with the limiting plate on the base plate at U type draw runner slip direction both ends respectively, be provided with the second spring beam between limiting plate and the U type draw runner that is close to circular-arc logical groove one side, U type draw runner both ends are opposite to each other one side and are provided with the guide surface, when spacing axle is in the middle part of circular-arc logical groove, the spacing axle is in the inboard at U type draw runner both ends, and the opposite side in both ends of U type draw runner touches with the outer peripheral face of spacing axle, the guide surface is located circular-arc logical groove top, and the stiffness coefficient of first spring beam is greater than the stiffness coefficient of second spring beam.
Compared with the prior art, the above technical scheme has the following beneficial effects:
According to the invention, the rotation direction of the main shaft can be adjusted according to the viscosity degree of the waste stripping liquid, and the downward moving speed of the waste stripping liquid on the heating surface is improved through the scraper component, so that the film forming speed of the waste stripping liquid on the heating surface is improved, and the evaporation efficiency of the waste stripping liquid is improved; or the downward moving speed of the waste stripping liquid on the heating surface is slowed down, so that the contact time of the waste stripping liquid and the heating surface is prolonged, and the requirement of evaporation concentration of the waste stripping liquid after passing through the heating surface is ensured.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the partial structure at A of FIG. 1;
FIG. 3 is a schematic view of a first view of a portion of the squeegee assembly of the present invention;
FIG. 4 is a schematic view of the partial structure at B of FIG. 3;
FIG. 5 is a schematic view of a second view of a portion of the squeegee assembly of the present invention;
FIG. 6 is a schematic view of the partial structure at C of FIG. 5;
FIG. 7 is a schematic view of a scraper bar and connecting strut in a split configuration according to the present invention;
FIG. 8 is a schematic view of the partial structure at D of FIG. 7;
FIG. 9 is a schematic view of the locking structure of the present invention;
FIG. 10 is a schematic top view of a wiper strip of the present invention;
FIG. 11 is a schematic view of the bottom construction of the wiper strip of the present invention;
FIG. 12 is a schematic view of a first state locking mechanism of the wiper strip of the present invention in operation;
FIG. 13 is a schematic view of a second state locking mechanism of the wiper strip of the present invention in operation;
fig. 14 is a schematic view of the first guide structure of the present invention.
In the figure:
100. A housing; 200. a main shaft; 300. a squeegee assembly; 310. scraping the strip; 311. a mounting groove; 320. a connecting strut; 330. a tip; 331. a first inclined surface; 340. a first guide; 341. a first guide slope; 342. a first arcuate surface; 350. a second guide; 351. a second guide slope; 352. a second arcuate surface; 361. a first strip section; 362. a second strip section; 363. an arc segment; 370. a rotating shaft; 371. a clamping block; 372. a limiting hole; 380. an angle limiting structure; 381. circular arc through groove; 382. a positioning plate; 383. a limiting shaft; 390. a preloaded elastic structure; 391. a first spring lever; 3910. a locking structure; 3911. a substrate; 3912. a U-shaped sliding bar; 3913. a second spring rod; 3914. a limiting plate; 3915. a guide surface; 400. and driving the motor.
Detailed Description
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
Referring to fig. 1 to 14, the invention provides a scraped wall thin film evaporator for treating waste stripping liquid, comprising a housing 100, a main shaft 200, a scraper assembly 300 and a driving motor 400, wherein the driving motor 400 is arranged outside the housing 100 and drives the main shaft 200 to rotate in the housing 100, and the scraper assembly 300 is fixed on the main shaft 200; of course, the scraped wall thin film evaporator also includes a heating jacket, a distributor, a vacuum device, etc. (all not shown), and the scraped wall thin film evaporator is a prior art, and the specific structure and working principle thereof are not described herein too much.
The technical scheme mainly improves the structure of the scraping plate component 300 of the scraping type thin film evaporator, thereby improving the evaporation efficiency of the scraping type thin film evaporator.
As shown in fig. 3 to 6, in the embodiment of the present invention, the scraper assembly 300 includes scraper bars 310 uniformly distributed on the outer side of the spindle 200 along the circumferential direction, and a connection strut 320 disposed between the scraper bars 310 and the spindle 200, wherein the scraper bars 310 are disposed along the axial direction of the spindle 200, two ends of the connection strut 320 are respectively connected with the scraper bars 310 and the spindle 200, one side of the scraper bars 310 away from the connection strut 320 is provided with a tip 330 composed of two first inclined planes 331, and the scraper bars 310 on two sides of the tip 330 are further provided with a first guide 340 and a second guide 350;
As shown in fig. 10-11, the first guiding element 340 includes a first guiding inclined plane 341 engaged with the first inclined plane 331 on the same side, the included angle between the first guiding inclined plane 341 and the corresponding first inclined plane 331 from top to bottom continuously decreases, the second guiding element 350 includes a second guiding inclined plane 351 engaged with the first inclined plane 331 on the same side, and the included angle between the second guiding inclined plane 351 and the corresponding first inclined plane 331 from top to bottom continuously increases.
Based on the design, the device can adjust the rotation direction of the main shaft 200 according to the viscosity degree of the waste stripping liquid and improve the evaporation efficiency of the waste stripping liquid through the scraper assembly 300; for example, when the waste stripping liquid is thick, considering that the movement speed of the waste stripping liquid in the axial direction of the heating surface is slow, the spindle 200 can be driven to rotate towards the first guide 340 by the driving motor, so that the movement speed of the waste stripping liquid in the downward direction of the heating surface is improved, and the film forming speed of the waste stripping liquid in the heating surface is further improved, and the evaporation efficiency of the waste stripping liquid is improved;
when the waste stripping liquid is less viscous, considering that the movement speed of the waste stripping liquid in the heating surface is higher, the spindle 200 can be driven to rotate towards the first guide 340 by the driving motor to slow down the movement speed of the waste stripping liquid in the heating surface, so that the contact time of the waste stripping liquid and the heating surface is prolonged, and the requirement of evaporation concentration of the waste stripping liquid after passing through the heating surface is ensured.
How to increase or slow down the movement of the spent stripper solution down the heating surface is described in detail below:
When the driving motor 400 drives the spindle 200 to rotate toward the first guiding element 340, the tip 330 of the scraping strip 310 approaches the first inclined plane 331 of the first guiding element 340 and the first guiding inclined plane 341 of the first guiding element 340, which can form a pushing surface for pushing the waste stripping liquid to move along the circumferential direction, wherein the waste stripping liquid moves along the first inclined plane 331 toward the first guiding inclined plane 341 when being pushed, and when the waste stripping liquid moves to the first inclined plane 331, the first guiding inclined plane 341 generates a downward pushing force to increase the downward moving speed of the waste stripping liquid on the heating surface due to the continuous decrease of the included angle between the first guiding inclined plane 341 and the corresponding first inclined plane.
When the driving motor 400 drives the spindle 200 to rotate toward the second guide member 350, the tip 330 of the scraper 310 approaches the first inclined plane 331 of the second guide member 350 and the second inclined plane 351 of the second guide member 350, which form a pushing surface for pushing the material to move along the circumferential direction, wherein the material moves along the first inclined plane 331 toward the second inclined plane 351 when being pushed, and when the material moves to the second inclined plane, the first inclined plane 341 generates an upward pushing force due to the increasing angle between the first inclined plane 341 and the corresponding first inclined plane from top to bottom, so as to slow down the downward moving speed of the material on the heating surface.
It should be noted that the tip 330 of the scraper assembly 300 is linear, and the length of the connecting rod 320 is only increased for different sizes of thin film evaporators, i.e. the distance between the scraper 310 and the spindle 200 is adjusted.
To avoid the waste stripper solution from sliding out of the side of the first guide slope 341 or the second guide slope 351 away from the first slope 331 during pushing, as shown in fig. 3 to 6, in the embodiment of the present invention, the first guide 340 further includes a first curved surface 342 engaged with the side of the first guide slope 341 away from the tip 330, the second guide 350 further includes a second curved surface 352 engaged with the side of the second guide slope 351 away from the tip 330, the first curved surface 342 and the second curved surface 352 are tangent to the corresponding first guide slope 341 and the second guide slope 351, respectively, and the intrados of the first curved surface 342 and the second curved surface 352 are facing the side of the tip 330.
Based on the above design, the first curved surface 342 of the first guide 340 and the second curved surface 352 of the second guide 350 can block the waste stripping liquid and guide the waste stripping liquid to flow toward the heating surface, avoiding the waste stripping liquid from sliding out from the side of the first inclined guide 341 or the second inclined guide 351 away from the first inclined guide 331 and away from the heating surface, resulting in reduced evaporation efficiency of the waste stripping liquid.
Specifically, as shown in fig. 14, the cross sections of the first guide 340 and the second guide 350 include a first straight edge, a second straight edge and an arc edge that are sequentially connected, the first straight edge forms a first strip-shaped section 361 in the axial direction of the spindle 200, the second straight edge forms a second strip-shaped section 362 in the axial direction of the spindle 200, the arc edge forms an arc-shaped section 363 in the axial direction of the spindle 200, and the first strip-shaped sections 361 of the first guide 340 and the second guide 350 may be fixed on the wiper 310 by a bolt connection manner or may be fixed on the wiper 310 by a welding manner.
Further, in order to enable the waste stripping solution to quickly move to the first guiding inclined plane 341 or the second guiding inclined plane 351, thereby improving the downward moving speed of the waste stripping solution on the heating surface, or delaying the downward moving speed of the waste stripping solution on the heating surface, as shown in fig. 10, in the embodiment of the present invention, one end of the connection strut 320 is fixedly connected to the main shaft 200, and the other end of the connection strut 320 is rotatably connected to the scraper 310 through a rotation shaft 370; wherein the rotation shaft 370 is disposed along the direction of the main shaft 200;
The connecting strut 320 is further provided with an angle limiting structure 380 and a preloaded elastic structure 390, the angle limiting structure 380 is used for limiting a deflection angle between the scraping strip 310 and the connecting strut 320, the preloaded elastic structure 390 is used for providing elastic damping in a rotation process of the scraping strip 310 and the connecting strut 320, and when an included angle between the scraping strip 310 and the connecting strut 320 is 180 degrees, the preloaded elastic structure 390 provides the minimum elastic damping.
Based on the above design, when the spindle 200 rotates, the connection strut 320 rotates together therewith, and the connection strut 320 is rotationally connected with the scraping strip 310 through the rotation shaft 370, the scraping strip 310 swings around the rotation shaft 370 towards a side deviating from the rotation direction of the spindle 200, so as to reduce the included angle between the corresponding first inclined plane 331 and the heating surface, so that the waste stripping liquid rapidly moves to the first guiding inclined plane 341 or the second guiding inclined plane 351, and the generated thrust force rapidly acts on the waste stripping liquid, so that the waste stripping liquid rapidly moves downwards or upwards, the film forming speed of the waste stripping liquid on the heating surface is improved, or the contact time between the waste stripping liquid and the heating surface is prolonged. The angle limiting structure 380 is used for limiting the deflection angle of the scraping strip 310, and the preloaded elastic structure 390 is used for driving the scraping strip 310 to reset after the spindle 200 stops rotating.
As shown in fig. 3 and 8, in this embodiment, a mounting groove 311 is formed on a side of the scraping strip 310, which is close to the connection strut 320, the rotation shaft 370 is vertically disposed in the mounting groove 311, clamping blocks 371 are disposed at two ends of the rotation shaft 370, the clamping blocks 371 are fixedly connected with the scraping strip 310 on the upper and lower sides of the mounting groove 311, and a limiting hole 372 adapted to the rotation shaft 370 is formed at one end of the connection strut 320, which is far away from the main shaft 200.
In this embodiment, the limiting hole 372 is strip-shaped and is disposed along the radial direction of the spindle 200, two sides of the limiting hole 372 are tangent to the outer peripheral surface of the rotating shaft 370, an arc-shaped through groove 381 is formed on the connecting strut 320 on one side of the rotating shaft 370, which is close to the spindle 200, the angle limiting structure 380 includes a positioning plate 382 fixed on the clamping block 371, and a limiting shaft 383 fixed between the pair of positioning plates 382 and penetrating the arc-shaped through groove 381, the center of the arc-shaped through groove 381 is located on one side of the rotating shaft 370, which is close to the spindle 200, the central axis of the rotating shaft 370 intersects with the extension line of the radius of the spindle 200, and the center of the arc-shaped through groove 381 is located on the extension line of the radius of the spindle 200.
As shown in fig. 10-13, based on the above design, when the spindle 200 is not rotated, the tip 330 of the scraper 310 contacts with the heating surface, the limiting shaft 383 is in the middle of the circular arc through groove 381, the rotating shaft 370 is at one end of the limiting hole 372 near the spindle 200, and at this time, the central axis of the rotating shaft 370, the central axis of the limiting shaft 383 and the central axis of the spindle 200 are all in the same plane, when the spindle 200 rotates, the scraper 310 deflects towards the side away from the spindle 200, in this process, the limiting shaft 383 deflects towards the rotating direction of the spindle 200 in the circular arc through groove 381, and because the center of the circular arc through groove 381 is located at the side of the rotating shaft 370 near the spindle 200, the limiting shaft 383 moves towards the heating surface relative to the spindle 200 in the moving process, and further the scraper 310 moves towards the heating surface in the deflecting process of the scraper 310, so as to avoid the too large distance between the scraper 310 and the heating surface after the deflecting, and increase of the film forming thickness of the stripping liquid on the heating surface.
In particular, during the actual production process, the size of the circular arc through groove 381 can be adjusted, so that the scraper bar 310 can keep a proper distance from the heating surface after deflection.
As shown in fig. 8, in this embodiment, the preloaded elastic structure 390 includes a first spring rod 391, wherein an arc-shaped through slot 381 is disposed along a radial direction of the first spring rod 391 near the main shaft 200, and a telescopic end of the first spring rod 391 is rotatably connected to an end of the positioning plate 382 away from the clamping block 371, and a fixed end of the first spring rod 391 is rotatably connected to the connecting rod 320.
In a specific embodiment, the number of the connecting struts 320 is plural, the connecting struts 320 are uniformly arranged along the axial direction of the spindle 200, and the number of the mounting grooves 311 on the scraping strip 310 is equal to the number of the connecting struts 320.
As shown in fig. 8 and 9, in this embodiment, a locking structure 3910 is further disposed at the top of the connection strut 320 between the limiting hole 372 and the circular-arc-shaped through groove 381, the locking structure 3910 includes a base plate 3911, a U-shaped slide 3912, and a second spring rod 3913, the base plate 3911 is fixed on the connection strut 320, the U-shaped slide 3912 is slidably engaged with the connection strut 320 and is only slidable along the radial direction of the spindle 200, limiting plates 3914 are disposed on the base plate 3911 at two ends of the sliding direction of the U-shaped slide 3912, a second spring rod 3913 is disposed between the limiting plates 3914 and the U-shaped slide 3912 near one side of the circular-arc-shaped through groove 381, guide surfaces 3915 are disposed on opposite sides of two ends of the U-shaped slide 3912, when the limiting shaft 383 is located in the middle of the circular-arc-shaped through groove 381, opposite sides of the two ends of the U-shaped slide 3912 are in contact with the outer peripheral surface of the limiting shaft 383, and the guide surfaces 3915 are located above the circular-arc-shaped through groove 381, and the stiffness coefficient of the second spring rod 3913 is larger than that of the first spring rod 391.
Based on the above design, when the spindle 200 does not rotate or rotates at a low speed, the centrifugal force generated is small, and under the action of the second spring rod 3913, the two ends of the U-shaped sliding bar 3912 can limit the limiting shaft 383, at this time, because the tip 330 of the scraping bar 310 contacts with the heating surface, the tip 330 of the scraping bar 310 can clean the jelly adhered on the heating surface, that is, the tip 330 of the scraping bar 310 cleans the jelly adhered on the heating surface through the low-speed rotation of the spindle 200.
When the spindle 200 works, that is, after the spindle 200 rotates rapidly, the generated centrifugal force is larger, the U-shaped sliding bar 3912 stretches the second spring rod 3913 to move towards the side far away from the spindle 200 on the connecting strut 320 under the action of the centrifugal force, so that both ends of the second spring rod move out of the upper portion of the circular arc through groove 381, at this time, the limitation of the limiting shaft 383 by the U-shaped sliding bar 3912 is removed, and the limiting shaft 383 can move in the circular arc through groove 381, so that the scraping bar 310 can deflect.
The guiding surfaces 3915 at two ends of the U-shaped sliding bar 3912 are arranged such that when the main shaft 200 is stopped and the limiting shaft 383 is reset under the action of the tension of the first spring rod 391, the two ends of the U-shaped sliding bar 3912 can be moved out of the upper portion of the circular arc through groove 381 by abutting against the guiding surfaces 3915, so that the limiting shaft 383 can be reset normally.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (7)
1. The utility model provides a waste stripping solution handles and scrapes wall type thin film evaporator, includes casing (100), main shaft (200), scraper blade subassembly (300) and driving motor (400), driving motor (400) set up in the outside of casing (100) and drive main shaft (200) rotation in casing (100), scraper blade subassembly (300) are fixed in on main shaft (200);
The scraper assembly (300) is characterized by comprising scraper bars (310) uniformly distributed on the outer side of the main shaft (200) along the circumferential direction and connecting support rods (320) arranged between the scraper bars (310) and the main shaft (200), wherein the scraper bars (310) are axially arranged along the main shaft (200), two ends of the connecting support rods (320) are respectively connected with the scraper bars (310) and the main shaft (200), one side, far away from the connecting support rods (320), of each scraper bar (310) is provided with a tip (330) formed by two first inclined planes (331), and the scraper bars (310) on two sides of each tip (330) are also provided with a first guide piece (340) and a second guide piece (350);
The first guiding piece (340) comprises a first guiding inclined plane (341) connected with the first inclined plane (331) on the same side, an included angle between the first guiding inclined plane (341) and the corresponding first inclined plane (331) is continuously decreased from top to bottom, the second guiding piece (350) comprises a second guiding inclined plane (351) connected with the first inclined plane (331) on the same side, and an included angle between the second guiding inclined plane (351) and the corresponding first inclined plane (331) is continuously increased from top to bottom.
2. The scraped wall thin film evaporator for waste stripper solution treatment according to claim 1, wherein the first guide member (340) further comprises a first arcuate surface (342) engaging a side of the first guide inclined surface (341) remote from the tip (330), the second guide member (350) further comprises a second arcuate surface (352) engaging a side of the second guide inclined surface (351) remote from the tip (330), the first arcuate surface (342) and the second arcuate surface (352) are tangent to the first guide inclined surface (341) and the second guide inclined surface (351), respectively, and the intrados of the first arcuate surface (342) and the second arcuate surface (352) are both directed toward a side of the tip (330).
3. The wall-scraping type thin film evaporator for waste stripping liquid treatment as claimed in claim 2, wherein the cross section of the first guide (340) and the second guide (350) each comprises a first straight line side, a second straight line side and an arc side which are connected in sequence, the first straight line side in the axial direction of the main shaft (200) constitutes a first strip section (361), the second straight line side in the axial direction of the main shaft (200) constitutes a second strip section (362), and the arc side in the axial direction of the main shaft (200) constitutes an arc section (363).
4. A wall-scraping type thin film evaporator for waste stripping liquid treatment according to claim 3, wherein one end of the connecting strut (320) is fixedly connected with the main shaft (200), the other end of the connecting strut (320) is rotatably connected with the scraping bar (310) through a rotating shaft (370), wherein the rotating shaft (370) is arranged along the direction of the main shaft (200), and the connecting strut (320) is further provided with an angle limiting structure (380) and a preloaded elastic structure (390);
The angle limiting structure (380) is used for limiting the relative deflection angle between the scraping strip (310) and the connecting support rod (320), the preloaded elastic structure (390) is used for providing elastic damping in the rotation process of the scraping strip (310) and the connecting support rod (320), and when the included angle between the scraping strip (310) and the connecting support rod (320) is 180 degrees, the elastic damping provided by the preloaded elastic structure (390) is minimum.
5. The wall-scraping type thin film evaporator for waste stripping liquid treatment according to claim 4, wherein a mounting groove (311) is formed in one side of the scraping strip (310) close to the connecting support rod (320), the rotating shaft (370) is vertically arranged in the mounting groove (311), clamping blocks (371) are arranged at two ends of the rotating shaft (370), the clamping blocks (371) are fixedly connected with the scraping strip (310) on the upper side and the lower side of the mounting groove (311), and a limiting hole (372) matched with the rotating shaft (370) is formed in one end of the connecting support rod (320) away from the main shaft (200);
The limiting hole (372) is strip-shaped and is arranged along the radial direction of the main shaft (200), two sides of the limiting hole (372) are tangent to the outer circumferential surface of the rotating shaft (370), an arc-shaped through groove (381) is formed in a connecting support rod (320) on one side, close to the main shaft (200), of the rotating shaft (370), the angle limiting structure (380) comprises a positioning plate (382) fixed on the clamping block (371), and a limiting shaft (383) fixed between the pair of positioning plates (382) and penetrating through the arc-shaped through groove (381), the circle center of the arc-shaped through groove (381) is located on one side, close to the main shaft (200), of the rotating shaft (370), the central axis of the rotating shaft (370) is intersected with the extension line of the radius of the main shaft (200), and the circle center of the arc-shaped through groove (381) is located on the extension line of the radius of the main shaft (200);
The preloaded elastic structure (390) comprises a first spring rod (391), wherein the first spring rod (391) is arranged on one side, close to the main shaft (200), of the circular arc-shaped through groove (381) along the radial direction of the main shaft (200), the telescopic end of the first spring rod (391) is rotationally connected with one end, far away from the clamping block (371), of the positioning plate (382), and the fixed end of the first spring rod (391) is rotationally connected with the connecting support rod (320).
6. The wall-scraping type thin film evaporator for waste stripping liquid treatment as claimed in claim 5, wherein the plurality of connecting struts (320) are provided, the connecting struts (320) are uniformly distributed along the axial direction of the main shaft (200), and the number of the mounting grooves (311) on the scraping bar (310) is equal to the number of the connecting struts (320).
7. The wall-scraping type thin film evaporator for waste stripping liquid treatment as claimed in claim 5, wherein a locking structure (3910) is further arranged at the top of the connecting strut (320) between the limiting hole (372) and the circular arc-shaped through groove (381), and the locking structure (3910) comprises a base plate (3911), a U-shaped sliding bar (3912) and a second spring bar (3913);
The base plate (3911) is fixed on connecting strut (320), U type draw runner (3912) and connecting strut (320) sliding fit and can only follow main shaft (200) radial direction and slide, be provided with limiting plate (3914) on base plate (3911) at U type draw runner (3912) slip direction both ends respectively, be provided with second spring bar (3913) between limiting plate (3914) and U type draw runner (3912) near circular-arc logical groove (381) one side, U type draw runner (3912) both ends are provided with guide surface (3915) on opposite sides, when spacing axle (383) are in the middle part of circular-arc logical groove (381), spacing axle (383) are in the inboard at U type draw runner (3912) both ends, and the opposite sides in both ends of U type draw runner (3912) and the outer peripheral face contact of spacing axle (383), guide surface (3915) are located circular-arc logical groove (381) top, and stiffness coefficient of first spring bar (391) is greater than stiffness coefficient of second spring bar (3913).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410519608.9A CN118084116B (en) | 2024-04-28 | 2024-04-28 | Wall scraping type thin film evaporator for treating waste stripping liquid |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410519608.9A CN118084116B (en) | 2024-04-28 | 2024-04-28 | Wall scraping type thin film evaporator for treating waste stripping liquid |
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| CN118084116B CN118084116B (en) | 2024-07-12 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104801055A (en) * | 2015-04-07 | 2015-07-29 | 于胜宾 | Flexible scraper-type evaporation device |
| CN104826349A (en) * | 2015-04-30 | 2015-08-12 | 中国纺织科学研究院 | Film evaporator for cellulose dissolving |
| KR102122051B1 (en) * | 2019-06-20 | 2020-06-11 | 이철호 | A circle thin film vaporization equipment |
| CN114618185A (en) * | 2022-03-01 | 2022-06-14 | 浙江长城搅拌设备股份有限公司 | Benzyl ester suspension crystallization kettle stirrer |
| CN219701108U (en) * | 2023-05-09 | 2023-09-19 | 四川久远化工技术有限公司 | Thin film evaporator scraper frame |
| CN117858745A (en) * | 2023-10-08 | 2024-04-09 | 恒天重工股份有限公司 | High-capacity thin film evaporator for dissolving cellulose |
-
2024
- 2024-04-28 CN CN202410519608.9A patent/CN118084116B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104801055A (en) * | 2015-04-07 | 2015-07-29 | 于胜宾 | Flexible scraper-type evaporation device |
| CN104826349A (en) * | 2015-04-30 | 2015-08-12 | 中国纺织科学研究院 | Film evaporator for cellulose dissolving |
| KR102122051B1 (en) * | 2019-06-20 | 2020-06-11 | 이철호 | A circle thin film vaporization equipment |
| CN114618185A (en) * | 2022-03-01 | 2022-06-14 | 浙江长城搅拌设备股份有限公司 | Benzyl ester suspension crystallization kettle stirrer |
| CN219701108U (en) * | 2023-05-09 | 2023-09-19 | 四川久远化工技术有限公司 | Thin film evaporator scraper frame |
| CN117858745A (en) * | 2023-10-08 | 2024-04-09 | 恒天重工股份有限公司 | High-capacity thin film evaporator for dissolving cellulose |
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