Improved film evaporator

Abstract

The utility model relates to the field of film evaporators, in particular to an improved film evaporator which comprises an evaporation assembly, a material scraping and distributing assembly is arranged in the evaporation assembly, the evaporation assembly comprises an evaporation tank, a discharging conical barrel is fixedly installed at the bottom of the evaporation tank, and the material scraping and distributing assembly comprises a distributing scraping cage. The cloth scraping cage is arranged in the evaporation tank, a plurality of scraping plates are fixedly mounted on the outer side of the cloth scraping cage, each scraping plate is provided with an inclined angle of 30 degrees, one end of each scraping plate is attached to the inner wall of the evaporation tank, a positioning shaft is arranged in the middle of the cloth scraping cage in a penetrating mode, a gearbox is arranged at the bottom of the positioning shaft, and a driving motor is arranged on one side of the gearbox. The output end of the gearbox is fixedly connected with the positioning shaft, and the effect of improving the downward material conveying capacity is achieved.

Description

Technical Field

[0001] The present application relates to the field of thin film evaporators, and in particular to an improved thin film evaporator. Background Art

[0002] A thin-film evaporator is a highly efficient evaporation device characterized by heat transfer and evaporation through the flow of liquid material along the heated tube wall. The thin-film evaporator operates by forming a thin film of liquid on the heated surface, significantly increasing heat transfer efficiency and evaporation rate. The material rapidly passes through the heated zone, resulting in a very short residence time during the evaporation process. This makes the thin-film evaporator ideal for processing heat-sensitive materials, which can deteriorate or deteriorate due to prolonged high temperatures.

[0003] For example, Chinese patent publication number CN111773751A discloses a scraper-type thin film evaporator, comprising an evaporator cylinder and a drive structure arranged on the upper side of the evaporator cylinder. A scraper cage structure is arranged in the evaporator cylinder, with its upper side connected to the drive structure and its lower side limited by a bearing on a lower head at the bottom of the evaporator cylinder. A discharge port is provided on the lower side of the lower head. A water cavity is provided on the side wall of the evaporator cylinder, and a water inlet and a water outlet are provided at the bottom and the top of the water cavity. An insulation layer is provided on the outside of the water cavity. A cleaning port and a vacuum interface are provided in sequence on the cylinder wall of the evaporator cylinder on the upper side of the scraper cage structure. A feed structure is provided on the cylinder wall of the evaporator cylinder adjacent to the scraper cage structure.

[0004] The technical solution recorded in this proposal uses the setting of a distributor to achieve uniform feeding of the material to the entire cylinder wall in an overflow manner, and the material is discharged continuously and evenly, which is convenient for subsequent scraper thinning and ensures that the separation effect of the evaporator is stable and efficient. However, this technical solution uses a cylindrical scraper, and the cylindrical scraper is set vertically, which can only play the role of thinning the material. The material can only move downward by gravity, and the efficiency is relatively low, which is inconvenient to use. Summary of the Invention

[0005] In order to solve the problems raised in the above background technology, the present application provides an improved thin film evaporator.

[0006] The above technical objectives of this application are achieved through the following technical solutions:

[0007] An improved thin film evaporator comprises an evaporation assembly, wherein a scraper and distributing assembly is provided inside the evaporation assembly, wherein the evaporation assembly comprises an evaporation tank, wherein a discharge cone barrel is fixedly mounted on the bottom of the evaporation tank, wherein the scraper and distributing assembly comprises a distributing scraper cage, wherein the distributing scraper cage is arranged inside the evaporation tank, and wherein a plurality of scrapers are fixedly mounted on the outside of the distributing scraper cage, wherein the scrapers have an inclination angle of thirty degrees, and one end of the scrapers is in contact with the inner wall of the evaporation tank, wherein a positioning shaft is inserted through the middle of the distributing scraper cage, wherein a gearbox is provided at the bottom of the positioning shaft, and a drive motor is provided on one side of the gearbox, and wherein the output end of the gearbox is fixedly connected to the positioning shaft.

[0008] The scraper is provided with a fixed material discharge cone at the bottom of the evaporator, so that the material can be evaporated and concentrated inside the evaporator, and the concentrated material falls into the inside of the material discharge cone for easy collection. The scraper is arranged inside the evaporator, so that the scraper drives the scraper to evenly cover the material on the inner wall of the evaporator. The scraper is provided with a 30-degree inclination angle, and one end of the scraper is in contact with the inner wall of the evaporator, so that the material is evenly scraped on the inner wall of the evaporator to form a thin liquid film, thereby increasing the contact area between the material and the inner wall of the evaporator and accelerating the heat transfer and evaporation process. The 30-degree inclination is convenient for increasing the ability to transport the material downward and avoiding the material from sticking to the inner wall of the evaporator due to long contact. A drive motor is provided on one side of the gearbox, and the output end of the gearbox is fixedly connected to the positioning shaft, so that the drive motor works to drive the gearbox to drive the positioning shaft to rotate, so that the scraper evenly scrapes the material on the inner wall of the evaporator.

[0009] Furthermore, the gearbox is arranged at the bottom of the blanking cone barrel, and the top of the gearbox is fixedly connected to the bottom of the blanking cone barrel.

[0010] Furthermore, a steam interface is provided on the top of the evaporation tank, and a feeder is fixedly installed on the inner side of the top of the evaporation tank.

[0011] By adopting the above solution and setting the steam interface, it is convenient to connect the vacuum device, conveniently evacuate the inside of the evaporation tank to a vacuum, and conveniently collect the steam generated by the evaporation of the material.

[0012] Furthermore, a feed port is provided on one side of the feeder, and the feed port is arranged outside the evaporation tank.

[0013] By adopting the above solution, a feed port is provided on one side of the feeder, and the feed port is arranged outside the evaporation tank, which is convenient for connecting an external pipeline to feed the material into the device for evaporation and concentration.

[0014] Furthermore, a distribution trough is provided at the bottom of the feeder, the distribution trough is annular in structure, and the distribution trough is in contact with the inner wall of the evaporation tank.

[0015] By adopting the above solution, the material distribution trough is annular in structure and fits against the inner wall of the evaporation tank, so that the feeder can guide the material and the material is evenly distributed on the inner wall of the evaporation tank.

[0016] Furthermore, a heat-insulating cover is provided on the outside of the evaporation tank, and a plurality of heating tubes are fixedly installed between the heat-insulating cover and the evaporation tank.

[0017] By adopting the above solution, a plurality of heating tubes are fixedly installed between the heat-insulating cover and the evaporation tank, so that the heating tubes can heat the side wall of the evaporation tank and increase the evaporation rate of the material.

[0018] Furthermore, a discharger is provided on one side of the bottom end of the discharge cone barrel, and a discharge port is provided at the bottom of one end of the discharger.

[0019] By adopting the above solution, a discharger is provided on one side of the bottom end of the discharge cone barrel, and a discharge port is provided at the bottom of one end of the discharger, so that the discharger can discharge the concentrated material inside the discharge cone barrel, and the discharge port is convenient for collecting the material.

[0020] Furthermore, the discharger is a twin-screw sealed feeder.

[0021] By adopting the above solution, the discharger is a twin-screw sealed feeder, which makes it easy to avoid affecting the internal pressure of the evaporator during the discharge process.

[0022] In summary, this application has the following technical effects:

[0023] A discharge cone barrel is fixedly installed at the bottom of the evaporator to facilitate evaporation and concentration of the material inside the evaporator. The concentrated material falls into the discharge cone barrel for easy collection. A cloth scraper is arranged inside the evaporator to facilitate the cloth scraper to drive the scraper to evenly cover the material on the inner wall of the evaporator. The scraper is provided with a 30-degree inclination angle, and one end of the scraper is in contact with the inner wall of the evaporator, so that the material is evenly scraped on the inner wall of the evaporator to form a thin liquid film, which increases the contact area between the material and the inner wall of the evaporator and accelerates the heat transfer and evaporation process. The 30-degree inclination is convenient for increasing the ability to transport the material downward to avoid the material from sticking to the inner wall of the evaporator due to long contact. A drive motor is provided on one side of the gearbox, and the output end of the gearbox is fixedly connected to the positioning shaft, so that the drive motor works to drive the gearbox to drive the positioning shaft to rotate, so that the scraper evenly scrapes the material on the inner wall of the evaporator. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is the appearance structure diagram of this application;

[0025] Figure 2 It is a schematic diagram of the three-dimensional structure of the scraper and cloth assembly of the present application;

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure of the feeder of the present application;

[0027] Figure 4 It is a cutaway view of the thermal insulation cover of this application.

[0028] In the figure, 101, evaporation component; 10101, evaporation tank; 10102, insulation cover; 10103, discharge cone barrel; 10104, discharger; 10105, discharge port; 10106, steam interface; 10107, feed port; 10108, heating pipe; 10109, feeder; 10110, material distribution trough; 102, scraper and distribution component; 10201, material scraper cage; 10202, scraper; 10203, positioning shaft; 10204, gearbox; 10205, drive motor. DETAILED DESCRIPTION

[0029] The present application is further described in detail below with reference to the accompanying drawings.

[0030] Example

[0031] As attached Figure 1 To the attached Figure 4 As shown:

[0032] The utility model provides an improved thin film evaporator, including an evaporation component 101, a scraper and a material distribution component 102 is provided inside the evaporation component 101, the evaporation component 101 includes an evaporation tank 10101, and a discharge cone barrel 10103 is fixedly installed at the bottom of the evaporation tank 10101. The discharge cone barrel 10103 is fixedly installed at the bottom of the evaporation tank 10101, so that the material can be evaporated and concentrated inside the evaporation tank 10101. The concentrated material falls into the discharge cone barrel 10103 for easy collection. 2 includes a fabric scraper cage 10201, which is arranged inside the evaporation tank 10101. The fabric scraper cage 10201 is arranged inside the evaporation tank 10101, so that the fabric scraper cage 10201 drives the scraper 10202 to evenly cover the material on the inner wall of the evaporation tank 10101. A plurality of scrapers 10202 are fixedly installed on the outside of the fabric scraper cage 10201. The scraper 10202 has an inclination angle of 30 degrees, and one end of the scraper 10202 is in contact with the inner wall of the evaporation tank 10101. 02 is provided with a 30-degree inclination angle, and one end of the scraper 10202 is in contact with the inner wall of the evaporation tank 10101, so that the material can be evenly scraped on the inner wall of the evaporation tank 10101 to form a thin liquid film, thereby increasing the contact area between the material and the inner wall of the evaporation tank 10101 and accelerating the heat transfer and evaporation process. The 30-degree inclination is convenient for increasing the ability to transport the material downward and avoiding the material from sticking to the inner wall of the evaporation tank 10101 due to prolonged contact. A positioning shaft 10203 is inserted in the middle of the scraper cage 10201. The positioning shaft 10203 is inserted in the middle of the scraper cage 10201. A gearbox 10204 is provided at the bottom, a drive motor 10205 is provided on one side of the gearbox 10204, and an output end of the gearbox 10204 is fixedly connected to the positioning shaft 10203. The drive motor 10205 is provided on one side of the gearbox 10204, and the output end of the gearbox 10204 is fixedly connected to the positioning shaft 10203, so that the drive motor 10205 works to make the gearbox 10204 drive the positioning shaft 10203 to rotate, so that the scraper 10202 evenly scrapes the material onto the inner wall of the evaporation tank 10101.

[0033] Among them, the gearbox 10204 is arranged at the bottom of the unloading cone barrel 10103, and the top of the gearbox 10204 is fixedly connected to the bottom of the unloading cone barrel 10103.

[0034] Among them, a steam interface 10106 is opened on the top of the evaporation tank 10101, and a feeder 10109 is fixedly installed on the inner side of the top of the evaporation tank 10101. The setting of the steam interface 10106 is convenient for connecting a vacuum device, convenient for evaporating the inside of the evaporation tank 10101 to a vacuum, and convenient for collecting the steam generated by the evaporation of the material.

[0035] Among them, a feed port 10107 is provided on one side of the feeder 10109, and the feed port 10107 is arranged on the outside of the evaporation tank 10101. A feed port 10107 is provided on one side of the feeder 10109, and the feed port 10107 is arranged on the outside of the evaporation tank 10101, which is convenient for connecting an external pipeline to feed the material into the device for evaporation and concentration.

[0036] Among them, a distribution trough 10110 is opened at the bottom of the feeder 10109. The distribution trough 10110 has an annular structure and is in contact with the inner wall of the evaporation tank 10101. The distribution trough 10110 has an annular structure and is in contact with the inner wall of the evaporation tank 10101, which makes it easy for the feeder 10109 to guide the material so that the material is evenly distributed on the inner wall of the evaporation tank 10101.

[0037] Among them, a heat-insulating cover 10102 is provided on the outside of the evaporation tank 10101, and a plurality of heating tubes 10108 are fixedly installed between the heat-insulating cover 10102 and the evaporation tank 10101. The heat-insulating cover 10102 and the evaporation tank 10101 are fixedly installed between the heat-insulating cover 10102 and the evaporation tank 10101, so that the heating tubes 10108 can heat the side wall of the evaporation tank 10101 and increase the evaporation rate of the material.

[0038] Among them, a discharger 10104 is provided on one side of the bottom end of the discharge cone barrel 10103, and a discharge port 10105 is opened at the bottom of one end of the discharger 10104. The discharger 10104 is provided on one side of the bottom end of the discharge cone barrel 10103, and a discharge port 10105 is opened at the bottom of one end of the discharger 10104, so that the discharger 10104 can discharge the concentrated material inside the discharge cone barrel 10103, and the discharge port 10105 is convenient for collecting the material.

[0039] Among them, the discharger 10104 is a twin-screw sealed feeder. Since the discharger 10104 is a twin-screw sealed feeder, it is convenient to avoid affecting the internal pressure of the evaporation tank 10101 during the discharge process.

[0040] Specifically, a feed port 10107 is provided on one side of the feeder 10109, and the feed port 10107 is provided on the outside of the evaporation tank 10101, so as to facilitate the connection of an external pipeline to feed the material into the device for evaporation and concentration. The distribution trough 10110 is annular in structure, and the distribution trough 10110 is in contact with the inner wall of the evaporation tank 10101, so that the feeder 10109 can guide the material so that the material is evenly distributed on the inner wall of the evaporation tank 10101. The steam interface 10106 is provided to facilitate the connection of the vacuum device, so as to facilitate the evaporation of the inside of the evaporation tank 10101. It is evacuated to a vacuum state, and is convenient for collecting the steam generated by the evaporation of the material. A number of heating pipes 10108 are fixedly installed between the heat preservation cover 10102 and the evaporation tank 10101, so that the heating pipes 10108 can heat the side wall of the evaporation tank 10101 to increase the evaporation rate of the material. A discharger 10104 is provided on one side of the bottom end of the discharge cone barrel 10103, and a discharge port 10105 is provided at the bottom of one end of the discharger 10104, so that the discharger 10104 can discharge the concentrated material inside the discharge cone barrel 10103, and the discharge port is convenient for collecting the material. The discharger 10104 is a twin-screw sealed feeder, which is convenient for avoiding affecting the internal pressure of the evaporation tank 10101 during the discharge process. The scraper cage 10201 is arranged inside the evaporation tank 10101, which is convenient for the scraper cage 10201 to drive the scraper 10202 to evenly cover the material on the inner wall of the evaporation tank 10101. The scraper 10202 is provided with an inclination angle of 30 degrees, and one end of the scraper 10202 is in contact with the inner wall of the evaporation tank 10101, so that the material is evenly scraped on the inner wall of the evaporation tank 10101 to form a thin liquid film, thereby increasing the liquid content. The contact area between the material and the inner wall of the evaporation tank 10101 is increased to accelerate the heat transfer and evaporation process. The 30-degree tilt is convenient for increasing the ability to transport the material downward to prevent the material from sticking to the inner wall of the evaporation tank 10101 due to prolonged contact. A drive motor 10205 is provided on one side of the gearbox 10204. The output end of the gearbox 10204 is fixedly connected to the positioning shaft 10203, so that the drive motor 10205 can work to drive the gearbox 10204 to drive the positioning shaft 10203 to rotate, so that the scraper 10202 can evenly scrape the material onto the inner wall of the evaporation tank 10101.

[0041] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but as long as they are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. An improved thin film evaporator, characterized in that: The invention comprises an evaporation component (101), wherein a scraper and distributing component (102) is provided inside the evaporation component (101), wherein the evaporation component (101) comprises an evaporation tank (10101), wherein a discharge cone barrel (10103) is fixedly installed at the bottom of the evaporation tank (10101), and wherein the scraper and distributing component (102) comprises a distributing scraper cage (10201), wherein the distributing scraper cage (10201) is arranged inside the evaporation tank (10101), and wherein a plurality of scrapers are fixedly installed on the outside of the distributing scraper cage (10201). (10202), the scraper (10202) is provided with an inclination angle of thirty degrees, and one end of the scraper (10202) is in contact with the inner wall of the evaporation tank (10101), a positioning shaft (10203) is inserted into the middle of the fabric scraping cage (10201), a gearbox (10204) is provided at the bottom of the positioning shaft (10203), a drive motor (10205) is provided on one side of the gearbox (10204), and an output end of the gearbox (10204) is fixedly connected to the positioning shaft (10203).

2. The improved thin film evaporator according to claim 1, characterized in that: The gearbox (10204) is arranged at the bottom of the blanking cone barrel (10103), and the top of the gearbox (10204) is fixedly connected to the bottom of the blanking cone barrel (10103).

3. The improved thin film evaporator according to claim 1, characterized in that: A steam interface (10106) is provided on the top of the evaporation tank (10101), and a feeder (10109) is fixedly installed on the inner side of the top of the evaporation tank (10101).

4. The improved thin film evaporator according to claim 3, characterized in that: A feed port (10107) is provided on one side of the feeder (10109), and the feed port (10107) is arranged outside the evaporation tank (10101).

5. The improved thin film evaporator according to claim 4, characterized in that: A distribution trough (10110) is provided at the bottom of the feeder (10109), the distribution trough (10110) is annular in structure, and the distribution trough (10110) is in contact with the inner wall of the evaporation tank (10101).

6. The improved thin film evaporator according to claim 1, characterized in that: A heat-insulating cover (10102) is provided on the outside of the evaporation tank (10101), and a plurality of heating tubes (10108) are fixedly installed between the heat-insulating cover (10102) and the evaporation tank (10101).

7. The improved thin film evaporator according to claim 1, characterized in that: A discharge device (10104) is provided at one side of the bottom end of the discharge cone barrel (10103), and a discharge port (10105) is provided at the bottom of one end of the discharge device (10104).

8. The improved thin film evaporator according to claim 7, characterized in that: The discharger (10104) is a twin-screw sealed feeder.

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