Inner wall cleaning device of spray dryer

Abstract

The utility model discloses an inner wall cleaning device of a spray dryer, which relates to the technical field of spray dryers and comprises a top frame, a limiting plate is arranged on the outer side of the top frame, a plurality of support frames are arranged in the top frame, and bearings are arranged at the other ends of the support frames; a control box is arranged at one end of the spindle, a plurality of sliding rails are arranged on the side face of the spindle, a plurality of first rotating wheels are concentrically arranged on the outer side of the spindle, second rotating wheels are arranged at the bottoms of the first rotating wheels, and the diameter of the second rotating wheels is smaller than that of the first rotating wheels. According to the inner wall cleaning device of the spray dryer, the first rotating wheel is arranged, the first cleaning block is installed on the first rotating wheel, and the cylindrical inner wall of the spray dryer is cleaned through the first cleaning block; and a second rotating wheel is arranged, a second cleaning block is installed on the second rotating wheel, and the conical inner wall of the spray dryer is cleaned through the second cleaning block.

Description

Technical Field

[0001] The utility model relates to the technical field of spray dryers, in particular to an inner wall cleaning device of a spray dryer. Background Art

[0002] Spray dryer is a commonly used material drying equipment, mainly used to convert particulate matter in liquid or suspension into dry powder or granular form. It achieves drying by spraying the material into fine particles under high temperature and high-speed airflow environment, causing it to evaporate and solidify rapidly.

[0003] However, during the drying process, powder particles tend to stick to the inside. If they are not cleaned for a long time, they will form a compaction inside, causing more material to adhere to the inner wall, thus affecting the production capacity of the device. In addition, the internal structure of the spray dryer is irregular, making it difficult to clean.

[0004] Therefore, a device for cleaning the inner wall of a spray dryer is provided to facilitate comprehensive cleaning of the spray dryer. Utility Model Content

[0005] Therefore, the purpose of the utility model is to provide an inner wall cleaning device of a spray dryer to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a device for cleaning the inner wall of a spray dryer, which includes a top frame, a limit plate is arranged on the outer side of the top frame, a plurality of support frames are arranged inside the top frame, and a bearing is arranged at the other end of each support frame; a main shaft is arranged inside the bearing, a control box is arranged at one end of the main shaft, a plurality of slide rails are arranged on the side of the main shaft, a plurality of first rotating wheels are concentrically arranged on the outer side of the main shaft, a second rotating wheel is arranged at the bottom of the first rotating wheel, and the diameter of the second rotating wheel is smaller than the diameter of the first rotating wheel.

[0007] As a preferred solution of the inner wall cleaning device of a spray dryer described in the utility model, wherein: the top surface of the limit plate is flush with the top surface of the top frame, and the height of the limit plate is less than the height of the top frame; the support frame is evenly distributed inside the top frame, one end of the support frame is fixed on the inner wall of the top frame, and the other end of the support frame is fixed on the side wall of the bearing; the center of the bearing coincides with the center of the top frame, the thickness of the main shaft is the same as the thickness of the top frame, and the height of the support frame is the same as the thickness of the main shaft.

[0008] As a preferred solution of the inner wall cleaning device of the spray dryer described in the utility model, the control box is placed above the bearing, the slide rails are arranged below the bearing, and the slide rails are evenly distributed on the side of the main shaft.

[0009] As a preferred solution of the inner wall cleaning device of a spray dryer described in the utility model, wherein: the first rotor is vertically distributed on the outside of the main shaft, a first slide plate is arranged inside the slide rail, the longitudinal number and position of the first slide plate are the same as the longitudinal number and position of the first rotor, the other end of the first slide plate is connected to the inner wall of the first rotor, and the height of the first slide plate is the same as the height of the first rotor.

[0010] As a preferred solution of the inner wall cleaning device of a spray dryer described in the utility model, a plurality of telescopic seats are evenly arranged on the outer side wall of the first rotating wheel, the bottom end of the telescopic seat is fixed on the side wall of the first rotating wheel, a telescopic rod is arranged inside the telescopic seat, a first cleaning block is arranged at the other end of the telescopic rod, and the plurality of first cleaning blocks can be pieced together into a whole.

[0011] As a preferred solution of the inner wall cleaning device of a spray dryer described in the utility model, wherein: one end of the top and bottom of the inner wall of the telescopic seat is provided with a notch, a magnetic block is provided inside the notch, the shape of the magnetic block corresponds to the shape of the notch, and the height of the magnetic block is the same as the depth of the notch; a return spring is provided at one end of the inner side of the telescopic seat, the other end of the return spring is connected to the telescopic rod, notches are also provided on the top and bottom surfaces of the telescopic rod, a magnetic block is provided inside the notch, the shape of the magnetic block on the telescopic rod corresponds to the shape of the notch, and the height of the magnetic block is the same as the depth of the notch.

[0012] As a preferred solution of the inner wall cleaning device of a spray dryer described in the utility model, a second slide plate is arranged at the lower part of the inner part of the slide rail, the other end of the second slide plate is connected to the inner wall of the second rotating wheel, the height of the second slide plate is the same as the height of the second rotating wheel, and a limiting block is arranged on the outer side wall of the second slide plate, the position and number of the limiting block correspond to the position and number of the second slide plate, and a fixing plate is arranged on the bottom surface of the limiting block.

[0013] As a preferred solution of the inner wall cleaning device of a spray dryer described in the utility model, wherein: the width of the fixed plate is greater than the width of the limit block, a rotating shaft is provided at the connection between the fixed plate and the limit block, the vertical outer side surface of the fixed plate is located on the inner side of the vertical end surface of the limit block, and a second cleaning block is provided on the vertical outer side surface of the fixed plate. The shape of the second cleaning block is the same as the shape of the vertical outer side surface of the fixed plate, and the end surface of the second cleaning block exceeds the vertical end surface of the limit block.

[0014] Beneficial effects of the utility model:

[0015] 1. The utility model provides an inner wall cleaning device for a spray dryer, wherein a first rotating wheel is provided, a first cleaning block is installed on the first rotating wheel, and the cylindrical inner wall of the spray dryer is cleaned by the first cleaning block.

[0016] 2. The utility model provides an inner wall cleaning device for a spray dryer, wherein a second rotating wheel is provided, and a second cleaning block is installed on the second rotating wheel, and the conical inner wall of the spray dryer is cleaned by the second cleaning block. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0018] Figure 1 This is a schematic diagram of the overall structure of an inner wall cleaning device for a spray dryer according to the utility model;

[0019] Figure 2 This is a bottom view of an inner wall cleaning device of a spray dryer according to the utility model;

[0020] Figure 3 The internal structure of the telescopic seat of the inner wall cleaning device of the spray dryer of the utility model is shown in FIG. Figure 1 ;

[0021] Figure 4 The internal structure of the telescopic seat of the inner wall cleaning device of the spray dryer of the utility model is shown in FIG. Figure 2 ;

[0022] Figure 5 The telescopic rod structure of the inner wall cleaning device of the spray dryer of the utility model is shown in FIG. Figure 1 ;

[0023] Figure 6 The telescopic rod structure of the inner wall cleaning device of the spray dryer of the utility model is shown in FIG. Figure 2 .

[0024] Description of reference numerals:

[0025] 1. Top frame; 11. Support frame; 12. Bearing; 13. Limit plate; 2. Main shaft; 21. Control box; 22. Slide rail; 3. First rotating wheel; 31. First slide plate; 32. Telescopic seat; 33. Telescopic rod; 34. First cleaning block; 4. Second rotating wheel; 41. Second slide plate; 42. Limit block; 43. Fixed plate; 44. Rotating shaft; 45. Second cleaning block; 5. Return spring; 6. Notch; 7. Magnetic block. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] Reference Figure 1-6 , is an inner wall cleaning device of a spray dryer provided by the utility model, and this inner wall cleaning device of a spray dryer comprises a top frame 1, a limit plate 13 is arranged on the outer side of the top frame 1, a plurality of support frames 11 are arranged inside the top frame 1, and a bearing 12 is arranged at the other end of each support frame 11; a main shaft 2 is arranged inside the bearing 12, a control box 21 is arranged at one end of the main shaft 2, a plurality of slide rails 22 are arranged on the side of the main shaft 2, a plurality of first runners 3 are arranged concentrically on the outer side of the main shaft 2, a second runner 4 is arranged at the bottom of the first runner 3, and the diameter of the second runner 4 is smaller than the diameter of the first runner 3.

[0028] Specifically, a limit plate 13 is provided on the outer side of the top frame 1, and the top frame 1 is fixed in the top opening of the spray dryer through the limit plate 13; a plurality of support frames 11 are provided inside the top frame 1, and the other ends of the support frames 11 are provided with bearings 12, and the bearings 12 are fixed inside the top frame 1 through the support frames 11; a main shaft 2 is provided inside the bearing 12, and a control box 21 is provided at one end of the main shaft 2, and the main shaft 2 is driven to rotate through the control box 21, and the main shaft 2 can rotate independently with the top frame 1 through the connection between the bearing 12 and the main shaft 2; a plurality of first runners 3 are concentrically provided on the outer side of the main shaft 2, and a second runner 4 is provided at the bottom of the first runner 3, and the diameter of the second runner 4 is smaller than the diameter of the first runner 3, and the first runner 3 is adapted to the cylindrical part of the spray dryer, and the second runner 4 is adapted to the conical part of the spray dryer.

[0029] The top surface of the limit plate 13 is flush with the top surface of the top frame 1, and the height of the limit plate 13 is less than the height of the top frame 1; the support frame 11 is evenly distributed inside the top frame 1, one end of the support frame 11 is fixed on the inner wall of the top frame 1, and the other end of the support frame 11 is fixed on the side wall of the bearing 12; the center of the bearing 12 coincides with the center of the top frame 1, the thickness of the main shaft 2 is the same as the thickness of the top frame 1, and the height of the support frame 11 is the same as the thickness of the main shaft 2.

[0030] Specifically, the top frame 1 is extended into the interior of the spray dryer by contacting the top surface of the spray dryer through the limit plate 13; the bearing 12 is fixed at the center of the top frame 1 through the support frame 11, and the two end surfaces of the top frame 1, the support frame 11 and the bearing 12 are kept horizontal.

[0031] The control box 21 is placed above the bearing 12 , and the slide rails 22 are arranged below the bearing 12 . The slide rails 22 are evenly distributed on the side surfaces of the main shaft 2 .

[0032] Specifically, when in use, the control box 21 is located outside the spray dryer, and the slide rail 22 is located inside the spray dryer.

[0033] The first rotating wheel 3 is vertically distributed on the outside of the main shaft 2, and a first slide plate 31 is arranged inside the slide rail 22. The longitudinal number and position of the first slide plates 31 are the same as the longitudinal number and position of the first rotating wheel 3. The other end of the first slide plate 31 is connected to the inner wall of the first rotating wheel 3, and the height of the first slide plate 31 is the same as the height of the first rotating wheel 3.

[0034] Specifically, multiple first wheels 3 are provided to completely cover the cylindrical inner wall of the spray dryer; the main shaft 2 and the first wheel 3 are fixed by the first slide 31, and the first slide 31 is controlled to move inside the slide rail 22 by the main shaft 2; the height of the first slide 31 is the same as the height of the first wheel 3, so that the two ends of the first wheel 3 remain horizontal.

[0035] A plurality of telescopic seats 32 are evenly arranged on the outer wall of the first rotating wheel 3, the bottom end of the telescopic seat 32 is fixed on the side wall of the first rotating wheel 3, a telescopic rod 33 is arranged inside the telescopic seat 32, a first cleaning block 34 is arranged at the other end of the telescopic rod 33, and a plurality of first cleaning blocks 34 can be pieced together to form a whole circle.

[0036] Specifically, the centrifugal force generated by the rotation of the main shaft 2 throws the telescopic rod 33 out from the inside of the telescopic seat 32, so that the total length of the telescopic seat 32 and the telescopic rod 33 is increased, thereby increasing the cleaning range of the first cleaning block 34. Multiple first cleaning blocks 34 can be pieced together to form a full circle, and the size of the full circle is the same as the size of the top frame 1, which is convenient for placing it inside the spray dryer.

[0037] The top and bottom ends of the inner wall of the telescopic seat 32 are both provided with slots 6, and a magnetic block 7 is provided inside the slot 6. The shape of the magnetic block 7 corresponds to the shape of the slot 6, and the height of the magnetic block 7 is the same as the depth of the slot 6; a return spring 5 is provided at one end of the inner side of the telescopic seat 32, and the other end of the return spring 5 is connected to the telescopic rod 33. The top and bottom surfaces of the telescopic rod 33 are also provided with slots 6, and a magnetic block 7 is provided inside the slot 6. The shape of the magnetic block 7 on the telescopic rod 33 corresponds to the shape of the slot 6, and the height of the magnetic block 7 is the same as the depth of the slot 6.

[0038] Specifically, the telescopic seat 32 and the telescopic rod 33 are fixed by the slot 6 and the magnetic block 7, so that the first cleaning block 34 maintains a full circle when stationary; the telescopic seat 32 and the telescopic rod 33 are connected by the return spring 5, and the return spring 5 adopts a lightweight spring, so that when the centrifugal force generated by the main shaft 2 is less than the elastic force of the return spring 5, the telescopic rod 33 is pulled back to the inside of the telescopic seat 32 and fixed by the slot 6 and the magnetic block 7.

[0039] A second slide plate 41 is arranged at the lower part of the inner part of the slide rail 22, and the other end of the second slide plate 41 is connected to the inner wall of the second rotating wheel 4. The height of the second slide plate 41 is the same as the height of the second rotating wheel 4. A limiting block 42 is arranged on the outer wall of the second slide plate 41. The position and number of the limiting blocks 42 correspond to the position and number of the second slide plate 41, and a fixing plate 43 is arranged on the bottom surface of the limiting block 42.

[0040] Specifically, the first rotor 3 is arranged to completely cover the conical inner wall of the spray dryer; the main shaft 2 and the second rotor 4 are fixed by the second slide plate 41 , and the second slide plate 41 is controlled to move inside the slide rail 22 by the main shaft 2 .

[0041] The width of the fixed plate 43 is greater than the width of the limit block 42. A rotating shaft 44 is provided at the connection between the fixed plate 43 and the limit block 42. The vertical outer side surface of the fixed plate 43 is located on the inner side of the vertical end surface of the limit block 42. A second cleaning block 45 is provided on the vertical outer side surface of the fixed plate 43. The shape of the second cleaning block 45 is the same as the shape of the vertical outer side surface of the fixed plate 43, and the end surface of the second cleaning block 45 exceeds the vertical end surface of the limit block 42.

[0042] Specifically, when the main shaft 2 rotates, the rotating shaft 44 allows the fixed plate 43 to swing at the bottom of the limit block 42 after receiving the centrifugal force, and is limited by one end of the limit block 42. When limited, the fixed plate 43 and the limit block 42 remain vertical; the inner wall of the cone is cleaned by the second cleaning block 45, and the end face of the second cleaning block 45 exceeds the vertical end face of the limit block 42, which is convenient for limiting and avoids damage to the inner wall of the cone by the end face of the limit block 42.

[0043] During use, it is placed inside the spray dryer through the inlet, and is limited and fixed by the limit plate 13. The control box 21 is started to control the rotation of the main shaft 2, so that the main shaft 2 generates centrifugal force, thereby increasing the lateral area of ​​the first cleaning block 34 and contacting the cylindrical side wall of the spray dryer. The control box 21 controls the first runner 3 to move within the range of the slide rail 22, so that the first cleaning block 34 completes the cleaning of the cylindrical side wall of the spray dryer; the main shaft 2 rotates to generate centrifugal force to keep the second cleaning block 45 perpendicular to the limit block 42, so that the second cleaning block 45 generates pressure on the conical side wall of the spray dryer, so that the second cleaning block 45 completes the cleaning of the cylindrical side wall of the spray dryer, and the cleaned impurities are discharged through the outlet of the spray dryer.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A spray dryer inner wall cleaning device, comprising a top frame (1), characterized in that: A limit plate (13) is arranged on the outside of the top frame (1), a plurality of support frames (11) are arranged inside the top frame (1), and a bearing (12) is arranged at the other end of each support frame (11); a main shaft (2) is arranged inside the bearing (12), a control box (21) is arranged at one end of the main shaft (2), a plurality of slide rails (22) are arranged on the side of the main shaft (2), a plurality of first rotating wheels (3) are arranged concentrically on the outside of the main shaft (2), a second rotating wheel (4) is arranged at the bottom of the first rotating wheel (3), and the diameter of the second rotating wheel (4) is smaller than the diameter of the first rotating wheel (3).

2. The inner wall cleaning device of a spray dryer according to claim 1, characterized in that: The top surface of the limit plate (13) is flush with the top surface of the top frame (1), and the height of the limit plate (13) is less than the height of the top frame (1); the support frame (11) is evenly distributed inside the top frame (1), one end of the support frame (11) is fixed to the inner wall of the top frame (1), and the other end of the support frame (11) is fixed to the side wall of the bearing (12); the center of the bearing (12) coincides with the center of the top frame (1), the thickness of the main shaft (2) is the same as the thickness of the top frame (1), and the height of the support frame (11) is the same as the thickness of the main shaft (2).

3. The inner wall cleaning device of a spray dryer according to claim 1, characterized in that: The control box (21) is placed above the bearing (12), the slide rails (22) are arranged below the bearing (12), and the slide rails (22) are evenly distributed on the side of the main shaft (2).

4. The inner wall cleaning device of a spray dryer according to claim 3, characterized in that: The first rotating wheel (3) is vertically distributed on the outside of the main shaft (2), and a first slide plate (31) is arranged inside the slide rail (22). The longitudinal number and position of the first slide plates (31) are the same as the longitudinal number and position of the first rotating wheel (3). The other end of the first slide plate (31) is connected to the inner wall of the first rotating wheel (3), and the height of the first slide plate (31) is the same as the height of the first rotating wheel (3).

5. The inner wall cleaning device of a spray dryer according to claim 4, characterized in that: A plurality of telescopic seats (32) are evenly arranged on the outer wall of the first rotating wheel (3), the bottom end of the telescopic seat (32) is fixed to the side wall of the first rotating wheel (3), a telescopic rod (33) is arranged inside the telescopic seat (32), and a first cleaning block (34) is arranged at the other end of the telescopic rod (33), and the plurality of first cleaning blocks (34) can be assembled into a whole circle.

6. The inner wall cleaning device of a spray dryer according to claim 5, characterized in that: The top and bottom ends of the inner wall of the telescopic seat (32) are both provided with slots (6), a magnetic block (7) is provided inside the slot (6), the shape of the magnetic block (7) corresponds to the shape of the slot (6), and the height of the magnetic block (7) is the same as the depth of the slot (6); a return spring (5) is provided at one end of the inner side of the telescopic seat (32), the other end of the return spring (5) is connected to the telescopic rod (33), the top and bottom surfaces of the telescopic rod (33) are also provided with slots (6), a magnetic block (7) is provided inside the slot (6), the shape of the magnetic block (7) on the telescopic rod (33) corresponds to the shape of the slot (6), and the height of the magnetic block (7) is the same as the depth of the slot (6).

7. The inner wall cleaning device of a spray dryer according to claim 1, characterized in that: A second slide plate (41) is arranged at the lower part of the inner part of the slide rail (22), the other end of the second slide plate (41) is connected to the inner wall of the second rotating wheel (4), the height of the second slide plate (41) is the same as the height of the second rotating wheel (4), a limiting block (42) is arranged on the outer wall of the second slide plate (41), the position and number of the limiting blocks (42) correspond to the position and number of the second slide plate (41), and a fixing plate (43) is arranged on the bottom surface of the limiting block (42).

8. The inner wall cleaning device of a spray dryer according to claim 7, characterized in that: The width of the fixing plate (43) is greater than the width of the limiting block (42); a rotating shaft (44) is provided at the connection between the fixing plate (43) and the limiting block (42); a vertical outer side surface of the fixing plate (43) is located inside a vertical end surface of the limiting block (42); a second cleaning block (45) is provided on the vertical outer side surface of the fixing plate (43); the shape of the second cleaning block (45) is the same as that of the vertical outer side surface of the fixing plate (43); and an end surface of the second cleaning block (45) exceeds the vertical end surface of the limiting block (42).

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