Centrifugal spray drying tower for redispersible latex powder

Abstract

The utility model discloses a centrifugal spray drying tower for redispersible latex powder, which belongs to the technical field of drying equipment and comprises a heat insulation box and a drying tower main body rotatably connected in the heat insulation box and used for drying the latex powder, a sealing cover is fixed in a top plate of the heat insulation box, a rotating motor is mounted on the surface of the sealing cover, and the rotating motor is connected with the drying tower main body. A rotating shaft is fixed to the output end of the rotating motor, a plurality of stirring rods are fixed to the outer walls of the two sides of the rotating shaft, a scraping plate is fixed to the outer wall of one side of each stirring rod, a gear ring is fixed to the outer wall of the drying tower body, and a driving motor is installed at the bottom of the heat insulation box; and a driving gear meshed with the gear ring is fixed on the outer wall of an output shaft of the driving motor. According to the centrifugal spray drying tower for the redispersible latex powder, the latex powder can be comprehensively dried, the quality of the dried latex powder is guaranteed, and the inner wall of the drying tower main body can be automatically cleaned.

Description

Technical Field

[0001] The utility model belongs to the technical field of drying equipment, and specifically relates to a redispersible latex powder centrifugal spray drying tower. Background Art

[0002] Redispersible latex powder products are water-soluble redispersible powders, which are copolymers of ethylene and vinyl acetate, with polyvinyl alcohol as the protective colloid. Since redispersible latex powders have high bonding ability and unique properties, such as water resistance, construction performance and thermal insulation, their application range is extremely wide. When using redispersible latex powders, they need to be dried and dehydrated, and the most commonly used equipment at present is the centrifugal spray drying tower.

[0003] However, when using the centrifugal spray drying tower currently on the market, it is easy for the material to stick to the inner wall of the drying barrel, especially when drying redispersible latex powder. The material stuck on the inner wall is difficult to clean and remove, which not only consumes a lot of time and manpower, but also makes the drying effect poor and wastes a lot of materials.

[0004] Reference authorization announcement number: CN212006564U Chinese authorized patent: A modified latex powder anti-caking spray drying device. The utility model performs a temperature drying treatment after the raw materials enter, and then passes through a drying net for dehydration again, and then removes impurities under the action of a filter net, and then fixes it to the connecting shaft, and inserts the connecting shaft into the interior of the fixing seat through a block, and then the telescopic piece is extended and locked with the buckle to improve its filtering and disassembly effect.

[0005] However, the above problems also exist during its use. After the material is dried, the material is easy to stick to the inner wall of the drying barrel, and the material stuck to the inner wall is difficult to clean and remove, which not only consumes a lot of time and manpower, but also makes the drying effect poor and wastes a lot of material. Utility Model Content

[0006] The utility model aims to provide a redispersible latex powder centrifugal spray drying tower to solve the problem in the above background technology that after the material is dried, the material is easy to stick to the inner wall of the drying barrel, and the material stuck to the inner wall is difficult to clean and remove.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a redispersible latex powder centrifugal spray drying tower, comprising a heat insulation box and a drying tower body rotatably connected to the heat insulation box for drying the latex powder, a mounting hole is provided on the top of the heat insulation box, and a sealing cover rotatably connected to the drying tower body is fixed in the mounting hole on the top of the heat insulation box, a rotating motor is installed on the surface of the sealing cover, a rotating shaft is fixed to the output end of the rotating motor, a plurality of stirring rods are fixed to the outer walls on both sides of the rotating shaft, and a scraper for cleaning the inner wall of the drying tower body is fixed to the outer wall on one side of the stirring rod;

[0008] A gear ring is fixed on the outer wall of the drying tower body, a driving motor is installed on the bottom of the heat insulation box, and a driving gear meshing with the gear ring is fixed on the outer wall of the output shaft of the driving motor.

[0009] In a further embodiment, a material pump is installed on one side outer wall of the heat insulation box, and a delivery pipe extending into the sealing cover is installed at the discharge end of the material pump.

[0010] In a further embodiment, a plurality of electric heating rings are installed on the inner wall of the heat insulation box, an exhaust hole is opened on the top of the sealing cover, and an exhaust pipe is fixed in the exhaust hole on the top of the sealing cover.

[0011] In a further embodiment, a limiting ring is fixed to the outer wall of the upper half of the drying tower body, and a supporting ring for supporting the limiting ring is fixed to the outer wall of the lower half of the sealing cover.

[0012] In a further embodiment, a plurality of rotation grooves are provided on the surface of the support ring, sliding balls are rotatably connected in the rotation grooves on the surface of the support ring, and a sliding groove matching the sliding balls is provided at the bottom of the limit ring.

[0013] In a further embodiment, a fixed cover is provided at the bottom of the drying tower body, and an atomizer fixedly connected to the top plate of the sealing cover is installed at one end of the delivery pipe.

[0014] Technical effects and advantages of the utility model:

[0015] The redispersible latex powder centrifugal spray drying tower drives the rotating shaft to rotate through a rotating motor, thereby driving the stirring rod and the scraper to rotate. During the material drying process, the scraper can continuously clean the inner wall of the drying tower body to ensure the cleanliness of the inner wall of the drying tower body, and avoid the material from sticking to the inner wall of the drying tower body after drying, thereby avoiding manual cleaning and reducing material waste.

[0016] The driving motor drives the driving gear to rotate, and the driving gear drives the drying tower body to rotate through the gear ring, so that the drying tower body performs centrifugal motion, so that the latex powder material is closely attached to the inner wall of the drying tower body, and the drying tower body is heated with multiple electric heating rings, so that the latex powder material in the drying tower body is fully and quickly dried, thereby improving the drying efficiency of the latex powder material;

[0017] By rotating the stirring rod in the opposite direction to the drying tower body, not only can the agglomeration of the dried material be avoided, but also during the material drying process, the material can be evenly dispersed in the drying tower body, further ensuring the drying effect of the material. The redispersible latex powder centrifugal spray drying tower can not only fully dry the latex powder to ensure the quality of the dried latex powder, but also automatically clean the inner wall of the drying tower body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the utility model in a cut-away state;

[0021] Figure 3 It is a structural schematic diagram of the main body of the drying tower of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the rotating motor and the rotating shaft of the utility model;

[0023] Figure 5 It is an exploded view of the sealing cover of the utility model.

[0024] In the figure: 1. heat insulation box; 2. drying tower body; 3. sealing cover; 4. rotating motor; 5. rotating shaft; 6. stirring rod; 7. scraper; 8. limit ring; 9. gear ring; 10. fixed cover; 11. support ring; 12. sliding ball; 13. material pump; 14. conveying pipe; 15. atomizer; 16. driving motor; 17. driving gear; 18. electric heating ring; 19. exhaust pipe. DETAILED DESCRIPTION

[0025] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0026] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside in the figures shown in the present utility model, and are explained here together.

[0027] See also Figure 1-5 The utility model provides a redispersible latex powder centrifugal spray drying tower, comprising a heat insulation box 1 and a drying tower body 2 rotatably connected to the heat insulation box 1 for drying the latex powder, a mounting hole is provided on the top of the heat insulation box 1, and a sealing cover 3 rotatably connected to the drying tower body 2 is welded in the mounting hole on the top of the heat insulation box 1, a rotating motor 4 is installed on the surface of the sealing cover 3 by bolts, a rotating shaft 5 is fixed to the output end of the rotating motor 4 by a coupling, a plurality of stirring rods 6 are welded to the outer walls of both sides of the rotating shaft 5, and a scraper 7 for cleaning the inner wall of the drying tower body 2 is fixed to the outer wall of one side of the stirring rod 6, a fixed cover 10 is provided at the bottom of the drying tower body 2, the rotating shaft 5 is driven to rotate by the rotating motor 4, thereby driving the stirring rod 6 and the scraper 7 to rotate, and in the process of material drying, the scraper 7 can continuously clean the inner wall of the drying tower body 2 to ensure the cleanliness of the inner wall of the drying tower body 2, and avoid the material from adhering to the inner wall of the drying tower body 2 after the material is dried;

[0028] A gear ring 9 is welded to the outer wall of the drying tower body 2, and a driving motor 16 is installed at the bottom of the heat insulation box 1 by bolts. A driving gear 17 meshing with the gear ring 9 is welded to the outer wall of the output shaft of the driving motor 16. The rotation direction of the driving motor 16 and the rotating motor 4 can be set according to actual use requirements, so that the rotation direction of the drying tower body 2 is opposite to that of the rotating shaft 5. A limiting ring 8 is welded to the outer wall of the upper half of the drying tower body 2, and a support ring 11 for supporting the limiting ring 8 is welded to the outer wall of the lower half of the sealing cover 3. The support ring 11 supports the limiting ring 8 to ensure the stability of the drying tower body 2. A plurality of rotating grooves are provided on the surface of the support ring 11, and a sliding ball 12 is rotatably connected in the rotating groove on the surface of the support ring 11. A sliding groove matching the sliding ball 12 is provided at the bottom of the limiting ring 8, which can make the drying tower body 2 rotate more smoothly in the sealing cover 3;

[0029] A plurality of electric heating rings 18 are installed on the inner wall of the heat insulation box 1, and the driving gear 17 is driven to rotate by the driving motor 16, and the driving gear 17 drives the drying tower body 2 to rotate through the gear ring 9, so that the drying tower body 2 performs centrifugal motion, so that the latex powder material is closely attached to the inner wall of the drying tower body 2, and the plurality of electric heating rings 18 are used to heat the drying tower body 2, so that the latex powder material in the drying tower body 2 is fully and quickly dried, and the drying efficiency of the latex powder material is improved. By rotating the stirring rod 6 in the opposite direction to the drying tower body 2, not only can the agglomeration of the dried material be avoided, but also during the material drying process, the material is evenly dispersed in the drying tower body 2, and the drying effect of the material is further ensured;

[0030] A material pump 13 is installed on the outer wall of one side of the heat insulation box 1 by bolts, and a delivery pipe 14 extending into the sealing cover 3 is installed at the discharge end of the material pump 13, and an atomizer 15 fixedly connected to the top plate of the sealing cover 3 is installed at one end of the delivery pipe 14. An exhaust hole is opened on the top of the sealing cover 3, and an exhaust pipe 19 is fixed in the exhaust hole on the top of the sealing cover 3. A control valve is installed on the exhaust pipe 19. Through the setting of the exhaust pipe 19, the hot air generated during the material drying process can be discharged.

[0031] The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The control method of the utility model is controlled by a controller, and the control circuit of the controller can be realized by simple programming by technicians in this field. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0032] In the description of the present invention, it is necessary to understand that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] Working principle:

[0034] When the redispersible latex powder centrifugal spray drying tower is used, the latex powder raw materials to be dried are sucked into the conveying pipe 14 through the material pump 13, and the latex powder raw materials are injected into the drying tower body 2 through the atomizer 15, and the rotating motor 4, the driving motor 16 and the electric heating ring 18 are started, and the driving gear 17 is driven to rotate by the driving motor 16, and the driving gear 17 drives the drying tower body 2 to rotate through the gear ring 9, so that the drying tower body 2 performs centrifugal motion, so that the latex powder material is closely attached to the inner wall of the drying tower body 2, and the drying tower body 2 is heated in conjunction with a plurality of electric heating rings 18, so that the latex powder material in the drying tower body 2 is fully and quickly dried, thereby improving the drying efficiency of the latex powder material;

[0035] The rotating motor 4 drives the rotating shaft 5 and the stirring rod 6 to rotate. The stirring rod 6 rotates in the opposite direction to the drying tower body 2, which can not only prevent the material from agglomerating after drying, but also make the material evenly dispersed in the drying tower body 2 during the material drying process, further ensuring the drying effect of the material. The stirring rod 6 drives the scraper 7 to rotate. During the material drying process, the scraper 7 continuously cleans the inner wall of the drying tower body 2 to ensure the cleanliness of the inner wall of the drying tower body 2 and prevent the material from sticking to the inner wall of the drying tower body 2 after drying. During the material drying process, the control valve on the exhaust pipe 19 is opened to discharge the hot air generated during the material drying process. Finally, the fixed cover 10 is opened to discharge the dried material out of the drying tower body 2.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A redispersible latex powder centrifugal spray drying tower, comprising a heat-insulating box (1) and a drying tower body (2) rotatably connected to the heat-insulating box (1) for drying the latex powder, characterized in that: The heat insulation box (1) is provided with a mounting hole at the top, and a sealing cover (3) rotatably connected to the drying tower body (2) is fixed in the mounting hole at the top of the heat insulation box (1), a rotating motor (4) is installed on the surface of the sealing cover (3), a rotating shaft (5) is fixed at the output end of the rotating motor (4), a plurality of stirring rods (6) are fixed to the outer walls on both sides of the rotating shaft (5), and a scraper (7) for cleaning the inner wall of the drying tower body (2) is fixed to the outer wall on one side of the stirring rod (6); A gear ring (9) is fixed on the outer wall of the drying tower body (2), a driving motor (16) is installed at the bottom of the heat insulation box (1), and a driving gear (17) meshing with the gear ring (9) is fixed on the outer wall of the output shaft of the driving motor (16).

2. A redispersible latex powder centrifugal spray drying tower according to claim 1, characterized in that: A material pump (13) is installed on one side outer wall of the heat insulation box (1), and a delivery pipe (14) extending into the sealing cover (3) is installed at the discharge end of the material pump (13).

3. A redispersible latex powder centrifugal spray drying tower according to claim 2, characterized in that: A plurality of electric heating rings (18) are installed on the inner wall of the heat insulation box (1), an exhaust hole is opened on the top of the sealing cover (3), and an exhaust pipe (19) is fixed in the exhaust hole on the top of the sealing cover (3).

4. The redispersible latex powder centrifugal spray drying tower according to claim 1, characterized in that: A limit ring (8) is fixed to the upper outer wall of the drying tower body (2), and a support ring (11) for supporting the limit ring (8) is fixed to the lower outer wall of the sealing cover (3).

5. A redispersible latex powder centrifugal spray drying tower according to claim 4, characterized in that: The surface of the support ring (11) is provided with a plurality of rotation grooves, and sliding balls (12) are rotatably connected in the rotation grooves on the surface of the support ring (11), and the bottom of the limit ring (8) is provided with a sliding groove matching the sliding balls (12).

6. A redispersible latex powder centrifugal spray drying tower according to claim 2, characterized in that: A fixed cover (10) is provided at the bottom of the drying tower body (2), and an atomizer (15) fixedly connected to the top plate of the sealing cover (3) is installed at one end of the delivery pipe (14).

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