Slurry distributor for vertical type wiped film dryer, internal component of vertical type wiped film dryer and vertical type wiped film dryer

Abstract

The utility model relates to a slurry distributor for a vertical type wiped film dryer, an internal component of the vertical type wiped film dryer and the vertical type wiped film dryer. The problem that in the prior art, after entering a dryer from a slurry inlet, slurry which crosses movable scrapers upwards and passes through gaps between the adjacent movable scrapers does not pass through the wall of the wiped film dryer, and directly falls into the bottom of the wiped film dryer without being fully dried is mainly solved. According to the technical scheme, a slurry transverse baffle (3) is arranged on the upper portion of the slurry distributor, a slurry longitudinal baffle (26) is arranged on the lower portion of the slurry distributor, the slurry longitudinal baffle (26) is in the shape of the side face of a rotating body, the slurry transverse baffle (3) is a circular ring, and the circle center of the circular ring is located on the axis of the rotating body.

Description

Technical Field

[0001] The utility model relates to a slurry distributor for a vertical scraping film dryer, an internal component of the vertical scraping film dryer and the vertical scraping film dryer. Background Art

[0002] Sodium lauryl sulfate (K12) is an anionic surfactant with excellent detergency, emulsification, and foaming power. For easy storage, transportation, and application, it is often dried into a solid state for sale. Its drying generally adopts a vertical scraped film drying process. This process is carried out under slightly negative pressure (gauge pressure -5.0Kpa) and the drying temperature is between 100 and 120 ° C. The material is dried in a low-pressure steam jacket. During the drying process, the material does not come into direct contact with the steam, ensuring the cleanliness of the product (compared to spray drying). The precursor of scraped film drying is a 70% sodium lauryl sulfate paste slurry. The slurry is pumped into the scraped film dryer through a delivery pump. Inside the dryer, the movable scraper layer at the top of the internal component spreads the slurry around the inside of the dryer. The spread slurry then flows down the inside of the dryer. Then, under the action of the subsequent layer-by-layer movable scraper-fixed scraper mixed layer (the movable scraper spreads the slurry on the cylinder wall for drying (the cylinder wall is heated by the jacket steam), and then the dried material is scraped off from the cylinder wall by the fixed scraper). In long-term production and R&D practice, we have found that after the slurry enters the dryer from the inlet, there will be slurry that goes over the movable scraper and passes through the gap between adjacent movable scrapers without passing through the scraper dryer wall and falls directly to the bottom of the scraper dryer without being fully dried. These slurries that are not fully dried are relatively viscous and easily adhere to the walls of subsequent conveying pipelines. Over time, they will clog the pipelines and conveying equipment, causing downtime. In addition, the slurry that has been attached for a long time is easily hydrolyzed, and the hydrolysis product is yellow (the product is white), which randomly enters the product and affects the product appearance. Utility Model Content

[0003] The utility model aims to solve the problem in the prior art that after the slurry inlet enters the dryer, the slurry will pass over the movable scraper upwards and pass through the gap between adjacent movable scrapers without passing through the scraper dryer wall and thus directly fall to the bottom of the scraper dryer without being fully dried. A slurry distributor for a vertical scraper dryer is provided, which effectively solves this technical problem.

[0004] In order to solve the above technical problems, the technical solutions of the present utility model are as follows:

[0005] A slurry distributor for a vertical scraped film dryer, wherein the upper portion of the slurry distributor is provided with a slurry transverse baffle (3) and the lower portion is provided with a slurry longitudinal baffle (26), wherein the slurry longitudinal baffle (26) has the shape of a side surface of a rotating body, and the slurry transverse baffle (3) is a circular ring, the center of which is on the axis of the rotating body.

[0006] The method for using the slurry distributor of the utility model is to place the slurry distributor on the top of the movable scraper layer at the upper part of the internal component of the existing vertical scraper dryer and fix it on the main rotating shaft (2). Accordingly, the slurry inlet on the side of the vertical scraper dryer is moved upward, and the slurry inlet originally facing the outer side of the movable scraper layer at the top of the internal component is changed to facing the outer surface of the slurry longitudinal baffle (26), and the slurry inlet (26) is lower than the slurry transverse baffle (3). In the utility model, the slurry longitudinal baffle (26) can prevent the slurry from passing through the gap between adjacent movable scrapers, and the slurry transverse baffle (3) prevents the slurry from splashing upward and passing over the movable scraper, thereby effectively reducing the occurrence of the slurry directly falling out of the scraper dryer without passing through the wall of the scraper dryer and without being fully dried.

[0007] In the above technical solution, it is preferred that the upper edge of the slurry longitudinal baffle (26) is tightly connected to the lower surface of the slurry transverse baffle (3).

[0008] In the above technical solution, it is preferred that the orthographic projection of the slurry longitudinal baffle (26) on the lower surface of the slurry transverse baffle (3) is located within the area surrounded by the outer edge line of the slurry transverse baffle (3) and does not contact the outer edge line.

[0009] In this way, the gap between the lower edge of the slurry longitudinal baffle (26) and the inner wall of the dryer (the gap between the slurry distributor and the dryer wall is defined as the lower gap) can be larger than the gap between the outer edge of the slurry transverse baffle (3) and the inner wall of the dryer (the gap between the slurry distributor and the dryer wall is defined as the upper gap). The lower gap is larger than the upper gap, which is more conducive to the path resistance of the slurry from the lower gap to the dryer wall.

[0010] In the above technical solution, it is preferred that the orthographic projection of the upper edge of the slurry longitudinal baffle (26) on the lower surface of the slurry transverse baffle (3) is located inside the area surrounded by the orthographic projection of the lower edge of the slurry longitudinal baffle (26) on the lower surface of the slurry transverse baffle (3).

[0011] Such a structural form makes the distance between the lower edge of the slurry longitudinal baffle (26) and the dryer wall smaller than the distance between the upper edge of the slurry longitudinal baffle (26) and the dryer wall, which is more conducive to concentrating the slurry contacted by the slurry longitudinal baffle (26) and guiding it to the dryer wall, reducing the degree of divergence of the slurry when passing through the above-mentioned lower gap, thereby being more conducive to the distribution and drying of the slurry on the dryer wall.

[0012] In the above technical solution, the rotating body is preferably a cylinder.

[0013] In the above technical solution, it is preferred that the distance from the upper edge of the slurry longitudinal baffle (26) to the axis of the rotating body is smaller than the distance from the lower edge of the slurry longitudinal baffle (26) to the axis of the rotating body.

[0014] Such a structural form makes the distance between the lower edge of the slurry longitudinal baffle (26) and the dryer wall smaller than the distance between the upper edge of the slurry longitudinal baffle (26) and the dryer wall, which is more conducive to concentrating the slurry contacted by the slurry longitudinal baffle (26) and guiding it to the dryer wall, reducing the degree of divergence of the slurry when passing through the above-mentioned lower gap, thereby being more conducive to the distribution and drying of the slurry on the dryer wall.

[0015] In the above technical solution, the rotating body is preferably a frustum.

[0016] In the above technical solution, the base angle of the truncated cone is preferably 60-80°.

[0017] In the above technical solution, a slurry push-down plate (29) is preferably provided on the side of the rotating body. With respect to the preset rotation direction (28) of the slurry distributor, the upper portion of the slurry push-down plate (29) is tilted forward relative to the lower portion of the slurry push-down plate (29), and the tilt angle is greater than 0° and less than 90°. The provision of the slurry push-down plate (29) reduces the time the slurry stays in the slurry distributor, and reduces the tendency of the slurry to hydrolyze due to not drying in time.

[0018] In the above technical solution, the inclination angle is preferably 10 to 40°.

[0019] In the above technical solution, it is preferred that the outer edge line of the slurry push plate (29) is connected to the outer edge line of the slurry horizontal baffle (3), and the outer edge line of the slurry push plate (29) is connected to the lower edge line of the slurry vertical baffle (26).

[0020] The utility model also provides internal components of a vertical scraping film dryer, and the technical solution is:

[0021] The internal components of a vertical scraping film dryer include a main rotating shaft (2), a movable scraper layer is provided on the main rotating shaft, a movable scraper-fixed scraper mixed layer is provided below the movable scraper layer in the area of ​​the main rotating shaft, and a slurry distributor as described above is provided in the area of ​​the main rotating shaft above the movable scraper layer, wherein the axis of the slurry distributor coincides with the axis of the main rotating shaft.

[0022] In the above technical solution, it is preferred that r1>r2, where r1 is the distance between the lower edge of the longitudinal baffle and the centerline of the main rotating shaft, and r2 is the distance between the point on the fixed scraper farthest from the main rotating shaft and the centerline of the main rotating shaft. This arrangement makes it easier for the slurry to flow down the barrel wall. If r1<r2, the slurry may enter other sides of the contact surface between the scraper and the barrel wall, adhere to the scraper, and be difficult to fall off. Over time, there is a risk of hydrolysis.

[0023] The utility model also provides a vertical scraping film dryer, the technical solution is:

[0024] A vertical scraped film dryer comprises a container, a heating device (18, 23) for supplying heat to the container, and an internal component as described above placed in the container; the container has a vertical cylindrical portion (7); a solvent vapor outlet (27) is provided at the top of the container; a dried material outlet (12) is provided at the bottom of the container; the solvent vapor outlet (27) is connected to a vacuum system; the lowest point of the slurry inlet (25) is higher than the lower edge of the longitudinal baffle (26), and the highest point of the slurry inlet (25) is lower than the upper edge of the longitudinal baffle (26).

[0025] Regarding the direction of the slurry inlet (25), those in the existing technology can be adopted, for example, the slurry inlet (25) is directed tangent to the cross-sectional circumference of the vertical cylindrical part (7) where the slurry inlet (25) is located, and is opposite to the preset rotation direction (28) of the slurry distributor. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of a first embodiment of a slurry distributor;

[0027] Figure 2 To include Figure 1 Schematic diagram of the internal components of a vertical scraped film dryer of the slurry distributor shown;

[0028] Figure 3 To include Figure 2 Schematic diagram of a vertical scraped film dryer showing the internal components of the vertical scraped film dryer;

[0029] Figure 4 It is a schematic diagram of the second embodiment of the slurry distributor;

[0030] Figure 5 To include Figure 4 Schematic diagram of the internal components of a vertical scraped film dryer of the slurry distributor shown;

[0031] Figure 6 To include Figure 5 Schematic diagram of a vertical scraped film dryer showing the internal components of the vertical scraped film dryer;

[0032] Figure 7 It is a schematic diagram of the third embodiment of the slurry distributor;

[0033] Figure 8 To include Figure 7 Schematic diagram of the internal components of a vertical scraped film dryer of the slurry distributor shown;

[0034] Figure 9 To include Figure 8 Schematic diagram of a vertical scraped film dryer showing the internal components of the vertical scraped film dryer;

[0035] Figure 10It is a schematic diagram of a fourth embodiment of a slurry distributor;

[0036] Figure 11 To include Figure 10 Schematic diagram of the internal components of a vertical scraped film dryer of the slurry distributor shown;

[0037] Figure 12 To include Figure 11 Schematic diagram of a vertical scraped film dryer showing the internal components of the vertical scraped film dryer;

[0038] Figure 13 It is a schematic diagram of the internal components of an existing vertical scraped film dryer;

[0039] Figure 14 To include Figure 13 Schematic diagram of a vertical scraped film dryer showing the internal components of a vertical scraped film dryer.

[0040] Figures 1 to 14 middle:

[0041] 1 is a driving device;

[0042] 2 is the main rotation axis;

[0043] 3 is a slurry horizontal baffle;

[0044] 4, 13, 15, 19 and 22 are support rings;

[0045] 5 and 9 are the jacket refrigerant outlets;

[0046] 6, 14, 17, 21 and 24 are movable scrapers;

[0047] 7 is a cylindrical tube part;

[0048] 8, 10 and 11 are fixed scrapers;

[0049] 12 is the outlet for the dried material;

[0050] 16 and 20 are the jacket heat medium inlets;

[0051] 18 and 23 are heating jackets;

[0052] 25 is the slurry inlet;

[0053] 26 is a slurry longitudinal baffle;

[0054] 27 is a solvent vapor discharge port;

[0055] 28 is the preset rotation direction;

[0056] 29 is a slurry push-down plate. DETAILED DESCRIPTION

[0057] [First Implementation Method]

[0058] See also Figure 1 、 Figure 2 and Figure 3 .

[0059] 1. Slurry distributor for vertical scraped film dryer

[0060] The slurry distributor has a slurry transverse baffle (3) at the top and a slurry longitudinal baffle (26) at the bottom. The slurry longitudinal baffle (26) has the shape of a side surface of a rotating body. The slurry transverse baffle (3) is a circular ring, and the center of the circular ring is on the axis of the rotating body.

[0061] The upper edge of the slurry longitudinal baffle (26) is tightly connected to the lower surface of the slurry transverse baffle (3).

[0062] The orthographic projection of the slurry longitudinal baffle (26) on the lower surface of the slurry transverse baffle (3) is located in the area surrounded by the outer edge line of the slurry transverse baffle (3) and does not contact the outer edge line.

[0063] The orthographic projection of the upper edge of the slurry longitudinal baffle (26) on the lower surface of the slurry transverse baffle (3) coincides with the orthographic projection of the lower edge of the slurry longitudinal baffle (26) on the lower surface of the slurry transverse baffle (3).

[0064] In the above technical solution, the rotating body is a cylinder.

[0065] 2. Internal components of vertical scraped film dryer

[0066] The invention comprises a main rotating shaft (2), wherein a movable scraper layer is provided on the main rotating shaft, a movable scraper-fixed scraper mixed layer is provided in the region of the main rotating shaft below the movable scraper layer, and a slurry distributor as described in the above section 1 is provided in the region of the main rotating shaft above the movable scraper layer, wherein the axis center line of the slurry distributor coincides with the axis center line of the main rotating shaft.

[0067] In the above technical solution, r1>r2, where r1 is the distance between the lower edge of the longitudinal baffle and the axis of the main rotating shaft, and r2 is the distance between the point on the fixed scraper farthest from the main rotating shaft and the axis of the main rotating shaft.

[0068] 3. Vertical scraped film dryer

[0069] It comprises a container, a heating device (18, 23) for providing heat to the container, and the internal component described in the above two sections placed in the container; the container has a vertical cylindrical barrel portion (7); a solvent vapor outlet (27) is provided at the upper portion of the container; a dried material outlet (12) is provided at the bottom of the container; the solvent vapor outlet (27) is connected to a vacuum system; the lowest point of the slurry inlet (25) is higher than the lower edge of the longitudinal baffle (26), and the highest point of the slurry inlet (25) is lower than the upper edge of the longitudinal baffle (26).

[0070] The slurry inlet (25) is directed tangentially to the cross-sectional circumference of the vertical cylindrical barrel portion (7) where the slurry inlet (25) is located, and is opposite to the preset rotation direction (28) of the slurry distributor.

[0071] The height of the distributor longitudinal baffle is three times the longitudinal dimension of the slurry inlet (25), and the center line of the slurry inlet (25) and 1 / 2 of the height of the distributor longitudinal baffle are located in the same horizontal plane.

[0072] [Second implementation method]

[0073] See also Figure 4 、 Figure 5 and Figure 6 .

[0074] 1. Slurry distributor for vertical scraped film dryer

[0075] The slurry distributor has a slurry transverse baffle (3) at the top and a slurry longitudinal baffle (26) at the bottom. The slurry longitudinal baffle (26) has the shape of a side surface of a rotating body. The slurry transverse baffle (3) is a circular ring, and the center of the circular ring is on the axis of the rotating body.

[0076] The upper edge of the slurry longitudinal baffle (26) is tightly connected to the lower surface of the slurry transverse baffle (3).

[0077] The orthographic projection of the slurry longitudinal baffle (26) on the lower surface of the slurry transverse baffle (3) is located in the area surrounded by the outer edge line of the slurry transverse baffle (3) and does not contact the outer edge line.

[0078] The orthographic projection of the upper edge of the slurry longitudinal baffle (26) on the lower surface of the slurry transverse baffle (3) is located inside the area surrounded by the orthographic projection of the lower edge of the slurry longitudinal baffle (26) on the lower surface of the slurry transverse baffle (3).

[0079] The distance from the upper edge of the slurry longitudinal baffle (26) to the axis center line of the rotating body is smaller than the distance from the lower edge of the slurry longitudinal baffle (26) to the axis center line of the rotating body.

[0080] The rotating body is a frustum.

[0081] The base angle of the frustum is 70°.

[0082] 2. Internal components of vertical scraped film dryer

[0083] The invention comprises a main rotating shaft (2), wherein a movable scraper layer is provided on the main rotating shaft, a movable scraper-fixed scraper mixed layer is provided in the region of the main rotating shaft below the movable scraper layer, and a slurry distributor as described in the above section 1 is provided in the region of the main rotating shaft above the movable scraper layer, wherein the axis center line of the slurry distributor coincides with the axis center line of the main rotating shaft.

[0084] In the above technical solution, r1>r2, where r1 is the distance between the lower edge of the longitudinal baffle and the axis of the main rotating shaft, and r2 is the distance between the point on the fixed scraper farthest from the main rotating shaft and the axis of the main rotating shaft.

[0085] 3. Vertical scraped film dryer

[0086] It comprises a container, a heating device (18, 23) for providing heat to the container, and the internal component described in the above two sections placed in the container; the container has a vertical cylindrical barrel portion (7); a solvent vapor outlet (27) is provided at the upper portion of the container; a dried material outlet (12) is provided at the bottom of the container; the solvent vapor outlet (27) is connected to a vacuum system; the lowest point of the slurry inlet (25) is higher than the lower edge of the longitudinal baffle (26), and the highest point of the slurry inlet (25) is lower than the upper edge of the longitudinal baffle (26).

[0087] The slurry inlet (25) is directed tangentially to the cross-sectional circumference of the vertical cylindrical barrel portion (7) where the slurry inlet (25) is located, and is opposite to the preset rotation direction (28) of the slurry distributor.

[0088] The height of the distributor longitudinal baffle is three times the longitudinal dimension of the slurry inlet (25), and the center line of the slurry inlet (25) and 1 / 2 of the height of the distributor longitudinal baffle are located in the same horizontal plane.

[0089] [Third Implementation Method]

[0090] See also Figure 7 、 Figure 8 and Figure 9 .

[0091] 1. Slurry distributor for vertical scraped film dryer

[0092] The slurry distributor has a slurry transverse baffle (3) at the top and a slurry longitudinal baffle (26) at the bottom. The slurry longitudinal baffle (26) has the shape of a side surface of a rotating body. The slurry transverse baffle (3) is a circular ring, and the center of the circular ring is on the axis of the rotating body.

[0093] The upper edge of the slurry longitudinal baffle (26) is tightly connected to the lower surface of the slurry transverse baffle (3).

[0094] The orthographic projection of the slurry longitudinal baffle (26) on the lower surface of the slurry transverse baffle (3) is located in the area surrounded by the outer edge line of the slurry transverse baffle (3) and does not contact the outer edge line.

[0095] The orthographic projection of the upper edge of the slurry longitudinal baffle (26) on the lower surface of the slurry transverse baffle (3) coincides with the orthographic projection of the lower edge of the slurry longitudinal baffle (26) on the lower surface of the slurry transverse baffle (3).

[0096] In the above technical solution, the rotating body is a cylinder.

[0097] A slurry push-down plate (29) is provided on the side of the rotating body. Relative to the preset rotation direction (28) of the slurry distributor, the upper part of the slurry push-down plate (29) is tilted forward relative to the lower part of the slurry push-down plate (29), and the tilt angle is 30°.

[0098] The outer edge line of the slurry push plate (29) is connected to the outer edge line of the slurry transverse baffle (3) on the upper side, and the positive projection of the outer edge line of the slurry push plate (29) on the slurry transverse baffle (3) coincides with the outer edge line of the slurry transverse baffle (3) on the circumference.

[0099] 2. Internal components of vertical scraped film dryer

[0100] The invention comprises a main rotating shaft (2), wherein a movable scraper layer is provided on the main rotating shaft, a movable scraper-fixed scraper mixed layer is provided in the region of the main rotating shaft below the movable scraper layer, and a slurry distributor as described in the above section 1 is provided in the region of the main rotating shaft above the movable scraper layer, wherein the axis center line of the slurry distributor coincides with the axis center line of the main rotating shaft.

[0101] In the above technical solution, r1>r2, where r1 is the distance between the lower edge of the longitudinal baffle and the axis of the main rotating shaft, and r2 is the distance between the point on the fixed scraper farthest from the main rotating shaft and the axis of the main rotating shaft.

[0102] 3. Vertical scraped film dryer

[0103] It comprises a container, a heating device (18, 23) for providing heat to the container, and the internal component described in the above two sections placed in the container; the container has a vertical cylindrical barrel portion (7); a solvent vapor outlet (27) is provided at the upper portion of the container; a dried material outlet (12) is provided at the bottom of the container; the solvent vapor outlet (27) is connected to a vacuum system; the lowest point of the slurry inlet (25) is higher than the lower edge of the longitudinal baffle (26), and the highest point of the slurry inlet (25) is lower than the upper edge of the longitudinal baffle (26).

[0104] The slurry inlet (25) is directed tangentially to the cross-sectional circumference of the vertical cylindrical barrel portion (7) where the slurry inlet (25) is located, and is opposite to the preset rotation direction (28) of the slurry distributor.

[0105] The height of the distributor longitudinal baffle is three times the longitudinal dimension of the slurry inlet (25), and the center line of the slurry inlet (25) and 1 / 2 of the height of the distributor longitudinal baffle are located in the same horizontal plane.

[0106] [Fourth Implementation Method]

[0107] See also Figure 10 、 Figure 11 and Figure 12 .

[0108] 1. Slurry distributor for vertical scraped film dryer

[0109] The slurry distributor has a slurry transverse baffle (3) at the top and a slurry longitudinal baffle (26) at the bottom. The slurry longitudinal baffle (26) has the shape of a side surface of a rotating body. The slurry transverse baffle (3) is a circular ring, and the center of the circular ring is on the axis of the rotating body.

[0110] The upper edge of the slurry longitudinal baffle (26) is tightly connected to the lower surface of the slurry transverse baffle (3).

[0111] The orthographic projection of the slurry longitudinal baffle (26) on the lower surface of the slurry transverse baffle (3) is located in the area surrounded by the outer edge line of the slurry transverse baffle (3) and does not contact the outer edge line.

[0112] The orthographic projection of the upper edge of the slurry longitudinal baffle (26) on the lower surface of the slurry transverse baffle (3) is located inside the area surrounded by the orthographic projection of the lower edge of the slurry longitudinal baffle (26) on the lower surface of the slurry transverse baffle (3).

[0113] The distance from the upper edge of the slurry longitudinal baffle (26) to the axis center line of the rotating body is smaller than the distance from the lower edge of the slurry longitudinal baffle (26) to the axis center line of the rotating body.

[0114] The rotating body is a frustum.

[0115] The base angle of the frustum is 70°.

[0116] A slurry push-down plate (29) is provided on the side of the rotating body. Relative to the preset rotation direction (28) of the slurry distributor, the upper part of the slurry push-down plate (29) is tilted forward relative to the lower part of the slurry push-down plate (29), and the tilt angle is 30°.

[0117] The outer edge line of the slurry push-down plate (29) is connected to the outer edge line of the slurry horizontal baffle (3), and the outer edge line of the slurry push-down plate (29) is connected to the lower edge line of the slurry vertical baffle (26).

[0118] 2. Internal components of vertical scraped film dryer

[0119] The invention comprises a main rotating shaft (2), wherein a movable scraper layer is provided on the main rotating shaft, a movable scraper-fixed scraper mixed layer is provided in the region of the main rotating shaft below the movable scraper layer, and a slurry distributor as described in the above section 1 is provided in the region of the main rotating shaft above the movable scraper layer, wherein the axis center line of the slurry distributor coincides with the axis center line of the main rotating shaft.

[0120] In the above technical solution, r1>r2, where r1 is the distance between the lower edge of the longitudinal baffle and the axis of the main rotating shaft, and r2 is the distance between the point on the fixed scraper farthest from the main rotating shaft and the axis of the main rotating shaft.

[0121] 3. Vertical scraped film dryer

[0122] It comprises a container, a heating device (18, 23) for providing heat to the container, and the internal component described in the above two sections placed in the container; the container has a vertical cylindrical barrel portion (7); a solvent vapor outlet (27) is provided at the upper portion of the container; a dried material outlet (12) is provided at the bottom of the container; the solvent vapor outlet (27) is connected to a vacuum system; the lowest point of the slurry inlet (25) is higher than the lower edge of the longitudinal baffle (26), and the highest point of the slurry inlet (25) is lower than the upper edge of the longitudinal baffle (26).

[0123] The slurry inlet (25) is directed tangentially to the cross-sectional circumference of the vertical cylindrical barrel portion (7) where the slurry inlet (25) is located, and is opposite to the preset rotation direction (28) of the slurry distributor.

[0124] The height of the distributor longitudinal baffle is three times the longitudinal dimension of the slurry inlet (25), and the center line of the slurry inlet (25) and 1 / 2 of the height of the distributor longitudinal baffle are located in the same horizontal plane.

[0125] [Existing Technology]

[0126] See also Figure 13 and Figure 14 .

[0127] 1. The slurry distributor of the utility model is not used

[0128] 2. Internal components of vertical scraped film dryer

[0129] The invention comprises a main rotating shaft (2), wherein a movable scraper layer is provided on the main rotating shaft, and a movable scraper-fixed scraper mixed layer is provided below the movable scraper layer in the region of the main rotating shaft.

[0130] 3. Vertical scraped film dryer

[0131] The invention comprises a container, a heating device (18, 23) for supplying heat to the container, and an internal component as described in any one of the above items placed in the container; the container has a vertical cylindrical barrel portion (7); a solvent vapor outlet (27) is provided at the top of the container; a dried material outlet (12) is provided at the bottom of the container; and the solvent vapor outlet (27) is connected to a vacuum system.

[0132] The slurry inlet (25) is directed tangentially to the cross-sectional circumference of the vertical cylindrical barrel portion (7) where the slurry inlet (25) is located, and is opposite to the preset rotation direction (28) of the slurry distributor.

[0133] The height of the movable scraper layer is 5 times the longitudinal dimension of the slurry inlet (25), and the center line of the slurry inlet (25) and 1 / 2 of the height of the movable scraper layer are located in the same horizontal plane.

Claims

1. A slurry distributor for a vertical scraped film dryer, characterized in that: The slurry distributor has a slurry transverse baffle (3) at the top and a slurry longitudinal baffle (26) at the bottom. The slurry longitudinal baffle (26) has the shape of the side surface of the rotating body. The slurry transverse baffle (3) is a circular ring, and the center of the circular ring is on the axis of the rotating body.

2. The slurry distributor according to claim 1, characterized in that: The upper edge of the slurry longitudinal baffle (26) is tightly connected to the lower surface of the slurry transverse baffle (3); and / or, the orthographic projection of the slurry longitudinal baffle (26) on the lower surface of the slurry transverse baffle (3) is located within the area surrounded by the outer edge line of the slurry transverse baffle (3) and does not contact the outer edge line.

3. The slurry distributor according to claim 2, characterized in that: The orthographic projection of the upper edge of the slurry longitudinal baffle (26) on the lower surface of the slurry transverse baffle (3) is located inside the area surrounded by the orthographic projection of the lower edge of the slurry longitudinal baffle (26) on the lower surface of the slurry transverse baffle (3).

4. The slurry distributor according to claim 1, characterized in that: The rotating body is a cylinder or a frustum.

5. The slurry distributor according to claim 4, characterized in that: The base angle of the truncated cone is 60-80°.

6. The slurry distributor according to any one of claims 1 to 5, characterized in that: A slurry push-down plate (29) is provided on the side of the rotating body. Relative to the preset rotation direction (28) of the slurry distributor, the upper portion of the slurry push-down plate (29) is tilted forward relative to the lower portion of the slurry push-down plate (29), and the tilt angle is greater than 0° and less than 90°.

7. The slurry distributor according to claim 6, characterized in that: The inclination angle is 10-40°.

8. An internal component of a vertical scraping film dryer, comprising a main rotating shaft (2), wherein a movable scraper layer is provided on the main rotating shaft, and a movable scraper-fixed scraper mixed layer is provided below the movable scraper layer in the region of the main rotating shaft, wherein the movable scraper layer is provided at a lower portion of the movable scraper layer. The main rotating shaft region above the movable scraper layer is provided with a slurry distributor according to any one of claims 1 to 7, and the axis of the slurry distributor coincides with the axis of the main rotating shaft.

9. The inner member according to claim 8, characterized in that: r1>r2, where r1 is the distance between the lower edge line of the longitudinal baffle and the axis center line of the main rotating shaft, and r2 is the distance between the point on the fixed scraper farthest from the main rotating shaft and the axis center of the main rotating shaft.

10. Vertical scraped film dryer, characterized by: The invention comprises a container, a heating device (18, 23) for supplying heat to the container, and an internal component according to claim 8 or 9 placed in the container; the container has a vertical cylindrical portion (7); a solvent vapor outlet (27) is provided at the top of the container; a dried material outlet (12) is provided at the bottom of the container; the solvent vapor outlet (27) is connected to a vacuum system; the lowest point of the slurry inlet (25) is higher than the lower edge of the longitudinal baffle (26), and the highest point of the slurry inlet (25) is lower than the upper edge of the longitudinal baffle (26).

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