Scraper type film evaporator

By introducing an adjustable rotating shaft and gear system into the scraped thin film evaporator, the problem of non-adjustable film thickness caused by fixed scraper position is solved, and flexible adjustment of film thickness and improved uniformity are achieved.

CN223570032UActive Publication Date: 2025-11-21WUXI FEIERNUO ENVIRONMENTAL ENG CO LTD
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Patent Information

Application Number
CN202423100993.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-16
Publication Date
2025-11-21
Estimated Expiration
2034-12-16

AI Technical Summary

Technical Problem

Existing scraped-film evaporators have fixed scraper positions, which makes it impossible to adjust the film thickness and limits the applicability of the equipment.

Method used

By introducing an adjustable rotating shaft and gear system into the scraped thin film evaporator, the scraper can be moved to different positions to adjust the film thickness, and the scraper can be stably locked by fixing bolts and quick-release buckles.

Benefits of technology

It enables flexible adjustment of film thickness according to production needs, improving the applicability of the equipment and the uniformity of the film.

✦ Generated by Eureka AI based on patent content.

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Abstract

The scraper type film evaporator comprises an evaporator main body, the top of the evaporator main body is fixedly connected with a stirring motor, the output end of the stirring motor penetrates through the top of the evaporator main body, extends into the evaporator main body and is fixedly connected with a stirring shaft, and the outer wall of the stirring shaft is fixedly connected with a fixing block; a plurality of supporting plates distributed at equal intervals are fixedly connected to the periphery of the outer wall of the fixing block, a connecting groove is formed in the end of each supporting plate, a scraping plate is arranged in each connecting groove, and a plurality of toothed bars distributed at equal intervals are vertically and fixedly connected to the inner wall of each scraping plate; a plurality of connecting holes distributed at equal intervals are formed in the top of the fixing block, rotating shafts are rotationally connected into the connecting holes, and a plurality of gears distributed at equal intervals are fixedly connected to the outer walls of the rotating shafts. And when films with different thicknesses are needed, a worker can rotate a rotating block to enable a gear to drive a toothed bar to move, so that a scraping plate moves to a proper position, and the applicability of the equipment is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to evaporator technical field, especially relate to a kind of scraper type thin film evaporator. BACKGROUND

[0002] The scraper thin film evaporator is equipped with heating steam jacket outside shell, rotatable scraper is equipped inside, and scraper is driven by rotating shaft in cylinder center. Raw material liquid is added from upper part of evaporator along tangent direction, and under the driving of gravity and rotating scraper, thin film is formed along the inner wall of shell by rotating downward, and liquid is discharged from bottom discharge device, and secondary steam is discharged from upper part after defoaming device. The outstanding advantages of this evaporator are strong adaptability to materials, suitable for evaporation of high viscosity, easy crystallization, easy scaling, containing suspended matter or having heat-sensitive liquid, at present, the existing scraper type thin film evaporator, due to the relatively fixed position of scraper, the thickness of film is fixed, and there is no way to adjust according to different needs of production evaporation, which has certain limitations in use. SUMMARY

[0003] The utility model provides a kind of scraper type thin film evaporator, to solve the problems presented in the above background technology.

[0004] A kind of scraper type thin film evaporator, including evaporator main body, the top of the evaporator main body is fixedly connected with stirring motor, the output of the stirring motor extends to the inside of the top of the evaporator main body and is fixedly connected with stirring shaft, the outer wall of the stirring shaft is fixedly connected with fixed block, the outer wall of the fixed block is fixedly connected with the support plate of several equidistant distribution, the end of the support plate is equipped with connecting slot, the inside of the connecting slot is provided with scraper, the inner wall of the scraper is vertically fixedly connected with the tooth rod of several equidistant distribution, the top of the fixed block is equipped with the connecting hole of several equidistant distribution, the inside of the connecting hole is rotatably connected with rotating shaft, the top of the rotating shaft is fixedly connected with rotating block, the outer wall of the rotating shaft is fixedly connected with the gear of several equidistant distribution, and the gear is connected with tooth rod.

[0005] As a preferred scheme of the scraper type thin film evaporator of the utility model, the top of the support plate is equipped with waist hole, the waist hole extends to the inside of connecting slot through the top of support plate, the inside of the waist hole is provided with fixed bolt, and the fixed bolt is connected with scraper.

[0006] As a preferred scheme of the scraper type thin film evaporator, the outer wall of the evaporator body is provided with an adjusting opening, the adjusting opening extends to the inside through the outer wall of the evaporator body, the outer wall of the evaporator body is fixedly connected with a hinge, the hinge is rotatably connected with a door, the outer wall of the door is fixedly connected with a fixed head, the outer wall of the evaporator body is fixedly connected with a quick buckle, the outer wall of the quick buckle is rotatably connected with a fixed ring, and the fixed ring is connected with the fixed head in a matched mode.

[0007] As a preferred scheme of the scraper type thin film evaporator, the left outer wall of the evaporator body is fixedly connected with a feeding pipe, the right outer wall of the evaporator body is fixedly connected with an exhaust pipe, and the bottom of the evaporator body is fixedly connected with a discharging pipe.

[0008] As a preferred scheme of the scraper type thin film evaporator, the outer wall of the evaporator body is fixedly connected with a plurality of equidistantly distributed ear seats.

[0009] The scraper type thin film evaporator has the following beneficial effects:

[0010] When thin films with different thicknesses are needed, the staff can rotate the rotating block to drive the gear to move the toothed rod, so that the scraper is moved to the appropriate position, and the thin film with the required thickness is produced, thereby improving the applicability of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is an overall structure schematic view of the scraper type thin film evaporator of the utility model;

[0012] Figure 2 It is an internal structure schematic view of the scraper type thin film evaporator of the utility model;

[0013] Figure 3 It is an internal structure schematic view of the fixing block of the scraper type thin film evaporator of the utility model;

[0014] Figure 4 It is an internal structure schematic view of the fixing block of the scraper type thin film evaporator of the utility model; Figure 1 It is an enlarged structure schematic view of A part of the scraper type thin film evaporator of the utility model;

[0015] Figure 5 It is an enlarged structure schematic view of B part of the scraper type thin film evaporator of the utility model. Figure 3 It is an enlarged structure schematic view of B part of the scraper type thin film evaporator of the utility model.

[0016] In the figure: 1, evaporator main body; 2, exhaust pipe; 3, stirring motor; 4, feed pipe; 5, lug seat; 6, stirring shaft; 7, fixed block; 8, discharge pipe; 9, fixing bolt; 10, connecting groove; 11, rotating block; 12, waist hole; 13, scraper; 14, support plate; 15, tooth rod; 16, bin door; 17, adjust bin mouth; 18, hinge; 19, fixed head; 20, quick buckle; 21, fixed ring; 22, gear; 23, connecting hole; 24, rotating shaft. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0018] To make the purpose, technical scheme and advantages of the utility model clearer, the embodiments of the utility model will be further described in detail below with reference to the drawings.

[0019] Please refer to Figures 1-5 A scraper type thin film evaporator, including evaporator main body 1, the top of evaporator main body 1 is fixedly connected with stirring motor 3, the output end of stirring motor 3 extends to the inside through the top of evaporator main body 1 and is fixedly connected with stirring shaft 6, the outer wall of stirring shaft 6 is fixedly connected with fixed block 7, a plurality of support plates 14 that are equally distributed are fixedly connected around the outer wall of fixed block 7, the end of support plate 14 is provided with connecting groove 10, scraper 13 is arranged in connecting groove 10, a plurality of tooth rods 15 that are equally distributed are fixedly connected to the inner wall of scraper 13 vertically, a plurality of connecting holes 23 that are equally distributed are set up in the top of fixed block 7, rotating shaft 24 is rotatably connected in connecting hole 23, rotating block 11 is fixedly connected to the top of rotating shaft 24, a plurality of gears 22 that are equally distributed are fixedly connected to the outer wall of rotating shaft 24, gear 22 is connected with tooth rod 15. When the thin film of different thicknesses is needed, the staff can rotate rotating block 11 to make gear 22 drive tooth rod 15 to move, make scraper 13 move to the appropriate position, produce the thin film of the thickness needed, improve the applicability of the equipment.

[0020] Please refer to Figures 1-3The top of the support plate 14 is provided with a waist hole 12 extending through the top of the support plate 14 to the inside of the connecting groove 10, and the inside of the waist hole 12 is provided with a fixing bolt 9 connected with the scraper 13. When the position of the scraper 13 is adjusted by the staff, the scraper 13 is locked by rotating the fixing bolt 9, so as to avoid shaking of the scraper 13 during rotation, thereby causing uneven thickness of the scraped film and unable to use.

[0021] Please refer to Figures 1-4 The outer wall of the evaporator body 1 is provided with an adjusting bin opening 17 extending through the outer wall of the evaporator body 1 to the inside, the outer wall of the evaporator body 1 is fixedly connected with a hinge 18, the hinge 18 is rotatably connected with a bin door 16, the outer wall of the bin door 16 is fixedly connected with a fixing head 19, the outer wall of the evaporator body 1 is fixedly connected with a quick buckle 20, the outer wall of the quick buckle 20 is rotatably connected with a fixing ring 21, and the fixing ring 21 is connected with the fixing head 19. By setting the adjusting bin opening 17, the staff can rotate the rotating block 11 to adjust the position of the scraper.

[0022] Please refer to Figures 1-2 The left outer wall of the evaporator body 1 is fixedly connected with a feeding pipe 4, the right outer wall of the evaporator body 1 is fixedly connected with an exhaust pipe 2, and the bottom of the evaporator body 1 is fixedly connected with a discharge pipe 8. The steam in the device is discharged through the exhaust pipe 2 to maintain the balance of the internal pressure.

[0023] Please refer to Figure 1 The outer wall of the evaporator body 1 is fixedly connected with a plurality of equally distributed ear seats 5. The ear seats 5 are provided to facilitate the fixation of the device.

[0024] Although the utility model has been described in the foregoing with reference to the embodiments, various improvements can be made and equivalent parts can be replaced without departing from the scope of the utility model. In particular, as long as there is no structural conflict, the features in the embodiments disclosed by the utility model can be combined in any way, and the combinations are not described in this specification due to the consideration of omitting the length and saving resources. Therefore, the utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A wiped thin-film evaporator comprising an evaporator body (1), characterized in that: The top of the evaporator body (1) is fixedly connected with a stirring motor (3), the output end of the stirring motor (3) extends to the inside through the top of the evaporator body (1) and is fixedly connected with a stirring shaft (6), the outer wall of the stirring shaft (6) is fixedly connected with a fixed block (7), a plurality of support plates (14) are fixedly connected around the outer wall of the fixed block (7), a connecting groove (10) is formed in the end of the support plate (14), a scraper (13) is arranged in the connecting groove (10), a plurality of tooth rods (15) are fixedly connected vertically on the inner wall of the scraper (13), a plurality of connecting holes (23) are formed in the top of the fixed block (7), a rotating shaft (24) is rotatably connected in the connecting hole (23), a rotating block (11) is fixedly connected to the top of the rotating shaft (24), a plurality of gear wheels (22) are fixedly connected to the outer wall of the rotating shaft (24), and the gear wheels (22) are connected with the tooth rods (15).

2. A wiped thin-film evaporator according to claim 1, characterized in that: The top of the support plate (14) is provided with a waist hole (12), the waist hole (12) extends through the top of the support plate (14) to the inside of the connecting groove (10), and the inside of the waist hole (12) is provided with a fixing bolt (9), which is connected with the scraper (13).

3. A wiped thin film evaporator according to claim 2, wherein: The outer wall of the evaporator body (1) is provided with an adjusting bin opening (17), the adjusting bin opening (17) extends through the outer wall of the evaporator body (1) to the inside, the outer wall of the evaporator body (1) is fixedly connected with a hinge (18), the hinge (18) is rotatably connected with a bin door (16), the outer wall of the bin door (16) is fixedly connected with a fixed head (19), the outer wall of the evaporator body (1) is fixedly connected with a quick buckle (20), the outer wall of the quick buckle (20) is rotatably connected with a fixed ring (21), and the fixed ring (21) is connected with the fixed head (19).

4. A wiped film evaporator according to claim 3 wherein: The left outer wall of the evaporator body (1) is fixedly connected with a feeding pipe (4), the right outer wall of the evaporator body (1) is fixedly connected with an exhaust pipe (2), and the bottom of the evaporator body (1) is fixedly connected with a discharge pipe (8).

5. A wiped film evaporator according to claim 4 wherein: The outer wall of the evaporator body (1) is fixedly connected with a plurality of equally distributed ear seats (5).