Fixed scraper type film evaporator

Abstract

The utility model discloses a fixed scraper type film evaporator, which relates to the technical field of evaporators and comprises a cavity, the upper side of one end of the cavity is connected with a feed port, the lower side of one end of the cavity is connected with a discharge port, the upper end of the cavity is connected with a scraper component, the outer side of the scraper component is connected with an upper cavity cleaning component, and the upper cavity cleaning component is connected with a lower cavity cleaning component. The lower end of the upper cavity cleaning assembly is connected with a lower cavity cleaning assembly, an electric telescopic rod and a second electric telescopic rod are started, so that a fifth bevel gear is separated from a fourth bevel gear, and a second bevel gear is driven to be engaged with a first bevel gear and a third bevel gear; and then the first driving motor and the second driving motor are started to drive the first cleaning block and the second cleaning block to move towards the middle part of the scraper along the scraper, so that the surface of the scraper is cleaned, impurities are prevented from remaining on the surface of the scraper, and meanwhile, the working efficiency of the evaporator is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of evaporators, and more specifically, to a fixed scraping type thin film evaporator. Background Technique

[0002] The scraping type thin film evaporator is a new type of high-efficiency evaporator that forms a film by the high-speed rotation of a scraper. Due to its high heat conductivity, short residence time of materials in the evaporator, not easy to coke and scale, especially suitable for the evaporation and concentration of heat-sensitive materials and high-viscosity materials, it is widely used in the fields of petroleum, chemical industry, food, medicine, environmental protection, etc.

[0003] Moreover, the scraper in the inner cavity of the evaporator scrapes the inner wall of the cavity for a long time, and impurities will remain on the surface of the scraper during the scraping process. If the surface of the scraper is not cleaned for a long time, the impurities will solidify on the surface of the scraper, which will affect the effect of the scraper scraping the inner wall surface of the cavity, and further affect the working efficiency of the evaporator. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a fixed scraping type thin film evaporator to solve the problems raised in the above background technique.

[0005] A fixed scraping type thin film evaporator includes a cavity. An inlet is connected to the upper side of one end of the cavity, an outlet is connected to the lower side of one end of the cavity, a scraper assembly is connected to the upper end of the cavity, an upper cavity cleaning assembly is connected to the outside of the scraper assembly, and a lower cavity cleaning assembly is connected to the lower end of the upper cavity cleaning assembly.

[0006] Preferably, the upper cavity cleaning assembly includes a first driving motor. A first gear is sleeved on the output end of the first driving motor. A second gear is meshed with one end of the first gear. A first threaded rod is connected to the middle part of the second gear, and the first driving motor is installed on the upper surface of the cavity.

[0007] Preferably, a first circular lifting block is connected to the outer surface of the first threaded rod. First guide rods penetrate through both ends of the first circular lifting block. First cleaning blocks are connected to both ends of the first circular lifting block, and the upper ends of the first guide rods are connected to the inner wall of the upper end of the cavity.

[0008] Preferably, the lower cavity cleaning assembly includes a circular frame body. A first bevel gear is connected to the inner cavity of the circular frame body. A second bevel gear is meshed with one end of the first bevel gear. An electric telescopic rod is connected to the end of the second bevel gear away from the first bevel gear, and the electric telescopic rod is rotatably connected to the inner wall surface of the circular frame body.

[0009] Preferably, a third bevel gear meshes with the lower end of the second bevel gear. A second threaded rod is connected to the lower end of the second bevel gear. A second circular lifting block is connected to the outer surface of the lower end of the second threaded rod. The two ends of the second circular lifting block penetrate through second guide rods, and second cleaning blocks are connected to the two ends of the second circular lifting block. The lower ends of the second guide rods are fixedly connected to the bottom surface of the cavity.

[0010] Preferably, the scraping assembly includes a second driving motor. A rotating rod is connected to the output end of the second driving motor. A fourth bevel gear is connected to the outer surface of the rotating rod. Fifth bevel gears are connected to the two ends of the fourth bevel gear. A second electric telescopic rod is connected to the end of each fifth bevel gear away from the rotating rod. A circular connecting block is connected to the outer side of each second electric telescopic rod. A scraper is connected to the end of the circular connecting block facing the inner wall of the cavity. A first sliding groove is formed at the end of the first cleaning block facing the inner wall of the cavity, and the first sliding groove fits with the scraper. A second sliding groove is formed at the end of the second cleaning block facing the inner wall of the cavity, and the second sliding groove fits with the scraper.

[0011] Preferably, the first threaded rod is rotatably connected to the rotating rod, and the second threaded rod is rotatably connected to the rotating rod. The first bevel gear is fixedly connected to the outer surface of the rotating rod, and the third bevel gear is fixedly connected to the outer surface of the second threaded rod. When the first circular lifting block moves to the lower end of the first threaded rod, the second circular lifting block moves to the upper end of the second threaded rod, and at this time, the first cleaning block and the second cleaning block are in contact.

[0012] Compared with the prior art, the advantages of the present utility model are as follows:

[0013] 1) In the present utility model, by starting the electric telescopic rod and the second electric telescopic rod, the fifth bevel gear is separated from the fourth bevel gear, and the second bevel gear is driven to mesh with the first bevel gear and the third bevel gear. Then, by starting the first driving motor and the second driving motor, the first cleaning block and the second cleaning block are driven to move along the scraper towards the middle part of the scraper, so as to clean the surface of the scraper, thereby avoiding impurities remaining on the surface of the scraper and improving the working efficiency of the evaporator at the same time. Description of the Drawings

[0014] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 is a schematic diagram of the upper cavity cleaning assembly structure of the present utility model;

[0016] Figure 3 is a schematic diagram of the lower cavity cleaning assembly structure of the present utility model;

[0017] Figure 4 Structural schematic diagram of the scraper assembly of the present utility model.

[0018] Description of reference numerals in the figure: 1, cavity; 2, feed port; 3, discharge port; 4, scraper assembly; 401, second drive motor; 402, rotating rod; 403, circular connection block; 404, scraper; 405, fourth bevel gear; 406, fifth bevel gear; 407, second electric telescopic rod; 5, upper cavity cleaning assembly; 501, first drive motor; 502, first gear; 503, second gear; 504, first threaded rod; 505, first circular lifting block; 506, first guide rod; 507, first cleaning block; 6, lower cavity cleaning assembly; 601, circular frame; 602, first bevel gear; 603, second bevel gear; 604, electric telescopic rod; 605, third bevel gear; 606, second threaded rod; 607, second circular lifting block; 608, second guide rod; 609, second cleaning block. Specific embodiments

[0019] Embodiment: Please refer to Figure 1 , a fixed scraper type thin film evaporator, comprising a cavity 1, a feed port 2 is connected to the upper side of one end of the cavity 1, a discharge port 3 is connected to the lower side of one end of the cavity 1, a scraper assembly 4 is connected to the upper end of the cavity 1, an upper cavity cleaning assembly 5 is connected to the outer side of the scraper assembly 4, and a lower cavity cleaning assembly 6 is connected to the lower end of the upper cavity cleaning assembly 5.

[0020] Please refer to Figure 2 , the upper cavity cleaning assembly 5 includes a first drive motor 501, a first gear 502 is sleeved on the output end of the first drive motor 501, a second gear 503 is engaged with one end of the first gear 502, a first threaded rod 504 is connected to the middle part of the second gear 503, and the first drive motor 501 is installed on the upper surface of the cavity 1.

[0021] Please refer to Figure 2 , a first circular lifting block 505 is connected to the outer surface of the first threaded rod 504, first guide rods 506 penetrate through both ends of the first circular lifting block 505, and first cleaning blocks 507 are connected to both ends of the first circular lifting block 505, and the upper ends of the first guide rods 506 are connected to the inner wall of the upper end of the cavity 1.

[0022] Please refer to Figure 3 , the lower cavity cleaning assembly 6 includes a circular frame 601, a first bevel gear 602 is connected to the inner cavity of the circular frame 601, a second bevel gear 603 is engaged with one end of the first bevel gear 602, an electric telescopic rod 604 is connected to the end of the second bevel gear 603 far from the first bevel gear 602, and the electric telescopic rod 604 is rotatably connected to the inner wall surface of the circular frame 601.

[0023] Please refer to Figure 3 , the lower end of the second bevel gear 603 meshes with the third bevel gear 605. The lower end of the third bevel gear 605 is connected to a second threaded rod 606. The outer surface of the lower end of the second threaded rod 606 is connected to a second circular lifting block 607. Both ends of the second circular lifting block 607 penetrate through a second guide rod 608, and both ends of the second circular lifting block 607 are connected to a second cleaning block 609. The lower end of the second guide rod 608 is fixedly connected to the bottom surface of the cavity 1.

[0024] Please refer to Figure 4 , the scraper assembly 4 includes a second drive motor 401. The output end of the second drive motor 401 is connected to a rotating rod 402. The outer surface of the rotating rod 402 is connected to a fourth bevel gear 405. Both ends of the fourth bevel gear 405 are connected to a fifth bevel gear 406. One end of each fifth bevel gear 406 away from the rotating rod 402 is connected to a second electric telescopic rod 407. The outer side of each second electric telescopic rod 407 is connected to a circular connection block 403. One end of the circular connection block 403 facing the inner wall of the cavity 1 is connected to a scraper 404. One end of the first cleaning block 507 facing the inner wall of the cavity 1 is provided with a first chute, and the first chute fits with the scraper 404. One end of the second cleaning block 609 facing the inner wall of the cavity 1 is provided with a second chute, and the second chute fits with the scraper 404.

[0025] The first threaded rod 504 is rotatably connected to the rotating rod 402. The second threaded rod 606 is rotatably connected to the rotating rod 402. The first bevel gear 602 is fixedly connected to the outer surface of the rotating rod 402. The third bevel gear 605 is fixedly connected to the outer surface of the second threaded rod 606. When the first circular lifting block 505 moves to the lower end of the first threaded rod 504, the second circular lifting block 607 moves to the upper end of the second threaded rod 606. At this time, the first cleaning block 507 and the second cleaning block 609 are in contact.

[0026] Working principle: First, start the second drive motor 401 to drive the rotating rod 402 to rotate, thereby driving the fourth bevel gear 405 to rotate, and then driving the fifth bevel gear 406 to rotate. As the fifth bevel gear 406 rotates, it will drive the circular connection block 403 and the scraper 404 to rotate, and then perform a scraping operation on the inner wall of the cavity 1. And during the scraping process of the scraper 404, impurities will remain on the surface of the scraper 404. At this time, start the electric telescopic rod 604 to perform an extension operation, so that the second bevel gear 603 meshes with the first bevel gear 602 and the third bevel gear 605. Then start the second electric telescopic rod 407 to perform a contraction operation, and separate the fifth bevel gear 406 from the fourth bevel gear 405;

[0027] When the fifth bevel gear 406 is separated from the fourth bevel gear 405, the first drive motor 501 and the second drive motor 401 are started, and the first drive motor 501 drives the first gear 502 to rotate, thereby driving the second gear 503 to rotate, and then driving the first threaded rod 504 to rotate. As the first threaded rod 504 rotates, the first circular lifting block 505 is driven to move downward along the first guide rod 506, so that the electric first cleaning block 507 moves downward along the surface of the scraper 404, and cleans the surface of the scraper 404 during the downward movement. The rotation of the second driving motor 401 drives the rotation of the rotating rod 402, thereby driving the first bevel gear 602 to rotate, and then driving the second bevel gear 603 to rotate. As the second bevel gear 603 rotates, the third bevel gear 605 is driven to rotate, thereby driving the second threaded rod 606 to rotate, and then driving the second circular lifting block 607 to move upward along the second guide rod 608, and then driving the second cleaning block 609 to move upward along the scraper 404. During the upward movement of the second cleaning block 609, the surface of the scraper 404 is cleaned;

[0028] When the first circular lifting block 505 moves to the lower end of the first threaded rod 504, the second circular lifting block 607 moves to the upper end of the second threaded rod 606. At this time, the first cleaning block 507 and the second cleaning block 609 are in contact, thereby completing the cleaning operation on the surface of the scraper 404, and all operations are ended.

[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A fixed scraped film evaporator, comprising a chamber (1), characterized in that: The upper side of one end of the cavity (1) is connected to a feed port (2), the lower side of one end of the cavity (1) is connected to a discharge port (3), the upper end of the cavity (1) is connected to a scraper assembly (4), the outer side of the scraper assembly (4) is connected to an upper cavity cleaning assembly (5), and the lower end of the upper cavity cleaning assembly (5) is connected to a lower cavity cleaning assembly (6).

2. A fixed scraped thin film evaporator according to claim 1, characterized in that: The upper cavity cleaning assembly (5) comprises a first driving motor (501), the output end of the first driving motor (501) is sleeved with a first gear (502), one end of the first gear (502) is meshed with a second gear (503), and the middle part of the second gear (503) is connected to a first threaded rod (504).

3. A fixed scraped film evaporator according to claim 2, characterized in that: The outer surface of the first threaded rod (504) is connected to a first circular lifting block (505), both ends of the first circular lifting block (505) are penetrated by first guide rods (506), and both ends of the first circular lifting block (505) are connected to first cleaning blocks (507).

4. A fixed scraped film evaporator according to claim 3, characterized in that: The lower cavity cleaning assembly (6) comprises a circular frame (601), the inner cavity of the circular frame (601) is connected to a first bevel gear (602), one end of the first bevel gear (602) is meshed with a second bevel gear (603), and one end of the second bevel gear (603) away from the first bevel gear (602) is connected to an electric telescopic rod (604).

5. A fixed scraped film evaporator according to claim 4, characterized in that: The lower end of the second bevel gear (603) is meshed with a third bevel gear (605), the lower end of the third bevel gear (605) is connected to a second threaded rod (606), the outer surface of the lower end of the second threaded rod (606) is connected to a second circular lifting block (607), both ends of the second circular lifting block (607) are penetrated by second guide rods (608), and both ends of the second circular lifting block (607) are connected to second cleaning blocks (609).

6. A fixed scraped film evaporator according to claim 5, characterized in that: The scraper assembly (4) comprises a second drive motor (401), the output end of the second drive motor (401) is connected to a rotating rod (402), the outer surface of the rotating rod (402) is connected to a fourth bevel gear (405), both ends of the fourth bevel gear (405) are connected to fifth bevel gears (406), one end of each of the fifth bevel gears (406) away from the rotating rod (402) is connected to a second electric telescopic rod (407), the outer side of each of the second electric telescopic rods (407) is connected to a circular connecting block (403), and one end of the circular connecting block (403) facing the inner wall of the cavity (1) is connected to a scraper (404).

7. A fixed scraped thin film evaporator according to claim 6, characterized in that: The first threaded rod (504) is rotationally connected to the rotating rod (402), the second threaded rod (606) is rotationally connected to the rotating rod (402), the first bevel gear (602) is fixedly connected to the outer surface of the rotating rod (402), and the third bevel gear (605) is fixedly connected to the outer surface of the second threaded rod (606).

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