Drying device for polyvinyl alcohol powder production

Abstract

The utility model discloses a drying device for polyvinyl alcohol powder production, which comprises a drying mounting assembly, and the drying mounting assembly comprises a drying outer shell, a first cross frame fixed at the side end of the drying outer shell, a cover plate arranged on the side surface of the first cross frame and a stirring rod arranged on the inner side of the drying outer shell; the air inlet drying assembly comprises a second cross frame fixed to the side end of the drying outer shell, a round hole formed in the surface of the second cross frame, an L-shaped air inlet pipe penetrating through the round hole, external threads formed in the surface of the L-shaped air inlet pipe and an air inlet disc communicating with the L-shaped air inlet pipe. Through mutual cooperation of the drying installation assembly and the air inlet drying assembly, hot air is evenly distributed, drying uniformity is ensured on the premise that rotation of the drying shell is not affected in the using process, raw materials are directly blown away through multi-hole-site result distribution, the raw material dispersion effect is promoted, and the drying effect is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of polyvinyl alcohol powder production, in particular to a drying device for polyvinyl alcohol powder production. Background Technique

[0002] In the production of polyvinyl alcohol powder, the main raw materials are ethylene and ethylene oxide. These raw materials need to be mixed in a certain proportion for subsequent polymerization reactions. During the production of polyvinyl alcohol powder, the raw materials need to be dried. In the prior art, hot air drying is generally used. However, in the process of using such a treatment method, hot air enters from one end of the drying barrel. During the drying process, since the raw materials are piled up in the drying barrel and the drying barrel rotates, the raw materials are scattered, so the raw materials will block the hot air, and the hot air cannot be evenly distributed throughout the drying barrel. It is easy to have a better drying effect on the raw materials near the hot air end, and a worse drying effect on the raw materials in other positions, and the drying effect is not uniform enough. Content of the Utility Model

[0003] Therefore, the purpose of the utility model is to provide a drying device for polyvinyl alcohol powder production. Through the mutual cooperation of the drying installation component and the air inlet drying component, when in use, on the premise of not affecting the rotation of the drying outer shell, the hot air is evenly distributed to ensure the uniformity of drying, and the result of multiple holes is distributed to directly disperse the raw materials, promote the dispersion effect of the raw materials, and further improve the drying effect.

[0004] To solve the above technical problems, according to one aspect of the utility model, the following technical solutions are provided: A drying device for polyvinyl alcohol powder production, including:

[0005] A drying installation component, the drying installation component includes a set drying outer shell, a first cross frame fixed to the side end of the drying outer shell, a cover plate arranged on the side surface of the first cross frame, and a stirring rod arranged inside the drying outer shell;

[0006] An air inlet drying component, the air inlet drying component includes a second cross frame fixed to the side end of the drying outer shell, a round hole opened on the surface of the second cross frame, an L-shaped air inlet pipe penetrating through the round hole, an external thread opened on the surface of the L-shaped air inlet pipe, an air inlet disc communicated with the L-shaped air inlet pipe, a long pipe communicated with the air inlet disc, an air outlet hole opened on the surface of the long pipe, a first thread ring and a second thread ring connected to the external thread and distributed on both sides of the second cross frame.

[0007] As a preferred scheme of a drying device for polyvinyl alcohol powder production according to the utility model, wherein, the drying installation component further includes an external gear disc fixed to the outer side of the drying outer shell;

[0008] Among them, three outer gear discs are provided, and the three outer gear discs are evenly distributed at equal intervals.

[0009] As a preferred solution of a drying device for producing polyvinyl alcohol powder according to the present invention, several long tubes are provided, and corresponding air outlet holes are opened on each long tube.

[0010] As a preferred solution of a drying device for producing polyvinyl alcohol powder according to the present invention, it further includes a connection component, and the connection component includes a threaded long rod fixed on the surface of the cover plate and a threaded hole opened on the surface of the first cross frame;

[0011] The threaded long rod is connected to the threaded hole.

[0012] As a preferred solution of a drying device for producing polyvinyl alcohol powder according to the present invention, the connection component further includes an annular frame fixed on the surface of the cover plate and an arc-shaped notch opened on the surface of the first cross frame;

[0013] The first cross frame includes five rectangular rods, and each rectangular rod has a corresponding arc-shaped notch.

[0014] As a preferred solution of a drying device for producing polyvinyl alcohol powder according to the present invention, the annular frame is engaged with the distributed arc-shaped notches.

[0015] Compared with the prior art, the advantages of the present invention are as follows:

[0016] Through the mutual cooperation of the drying installation component and the air inlet drying component, when in use, without affecting the rotation of the drying outer shell, the hot air is evenly distributed to ensure the uniformity of drying, and the result distribution of multiple holes directly blows the raw materials to promote the dispersion effect of the raw materials and further improve the drying effect.

[0017] Through the provided connection component, the cover plate is locked and installed, and after installation, multi-point limiting is performed in the vertical direction to avoid the problem of the cover plate shaking and loosening.

[0018] In specific use, the user pours the raw material of polyvinyl alcohol powder into the drying outer shell through the position of the first cross frame, and then covers and locks the cover plate. At this time, the user meshes the distributed outer gear disc with the transmission gear in the external cylinder, so that the entire drying outer shell can rotate, and the raw materials are scattered during the rotation of the drying outer shell. At this time, hot air is injected under high pressure through the L-shaped air inlet pipe, and the hot air quickly enters each long pipe through the air inlet disc. In this way, the hot air is quickly blown out through the distributed air outlet holes, so that the hot air is evenly dispersed, and during the blowing process, the stirred and dispersed raw materials are blown again to improve the dispersion effect, enabling the hot air to better dry and ensuring the drying effect. During the rotation of the drying outer shell, the second cross frame is limited between the first thread ring and the second thread ring, and the round hole rotates on the surface of the L-shaped air inlet pipe, so that the L-shaped air inlet pipe does not rotate with the drying outer shell, improving the stability of the connection between the L-shaped air inlet pipe and the external hot air pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in conjunction with the drawings and detailed embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. Among them:

[0020] Figure 1 is the structural diagram of the present invention;

[0021] Figure 2 is the structural diagram of the air intake and drying assembly of the present invention;

[0022] Figure 3 is the position structural diagram of the first cross frame of the present invention;

[0023] Figure 4 is the position structural diagram of the annular frame of the present invention;

[0024] Figure 5 is the structural diagram of the long pipe of the present invention.

[0025] In the figure: 11, drying outer shell; 12, outer gear disc; 13, first cross frame; 14, cover plate; 15, stirring rod; 21, second cross frame; 22, round hole; 23, L-shaped air inlet pipe; 24, external thread; 25, first thread ring; 26, second thread ring; 27, air inlet disc; 28, long pipe; 29, air outlet hole; 31, threaded long rod; 32, threaded hole; 33, arc-shaped notch; 34, annular frame. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In order to make the above-mentioned objects, features and advantages of the present utility model more obvious and understandable, the following will describe in detail the specific implementation manners of the present utility model with reference to the accompanying drawings.

[0027] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Persons skilled in the art can make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific implementation manners disclosed below.

[0028] Secondly, the present utility model will be described in detail in combination with the schematic diagrams. When detailing the implementation manners of the present utility model, for the convenience of description, the cross-sectional views showing the device structure will be enlarged locally in a non-general proportion, and the schematic diagrams are only examples, which should not limit the protection scope of the present utility model here. In addition, in actual production, three-dimensional spatial dimensions including length, width and depth should be included.

[0029] In order to make the purpose, technical solution and advantages of the present utility model clearer, the following will further describe in detail the implementation manners of the present utility model with reference to the accompanying drawings.

[0030] The present utility model provides a drying device for the production of polyvinyl alcohol powder. Through the mutual cooperation of the drying installation component and the air inlet drying component, when in use, on the premise of not affecting the rotation of the drying outer shell, the hot air is evenly distributed to ensure the uniformity of drying, and the result of multiple holes is distributed to directly disperse the raw materials, promote the dispersion effect of the raw materials, and further improve the drying effect.

[0031] Figures 1 - 5 Shown is the overall structural schematic diagram of an embodiment of a drying device for the production of polyvinyl alcohol powder according to the present utility model. Please refer to Figures 1 - 5 , the main structures of this embodiment include: a drying installation component and an air inlet drying component.

[0032] The drying installation component is used in cooperation with the air inlet drying component. Specifically, the drying installation component includes a drying outer shell 11 provided, a first cross frame 13 fixed to the side end of the drying outer shell 11, a cover plate 14 provided on the side of the first cross frame 13, and a stirring rod 15 provided inside the drying outer shell 11;

[0033] The drying installation component further includes an outer gear disk 12 fixed to the outside of the drying outer shell 11;

[0034] Among them, there are three outer gear disks 12, and the three outer gear disks 12 are equally spaced;

[0035] In specific use, the user pours the polyvinyl alcohol powder raw material into the drying outer casing 11 through the position of the first cross frame 13, and then covers and locks the cover plate 14. At this time, the user meshes the distributed outer gear disc 12 with the transmission gear in the external cylinder, so that the entire drying outer casing 11 can rotate.

[0036] The air intake drying assembly is used for efficient drying. Specifically, the air intake drying assembly includes a second cross frame 21 fixed to the side end of the drying outer casing 11, a round hole 22 opened on the surface of the second cross frame 21, an L-shaped air inlet pipe 23 penetrating through the round hole 22, an external thread 24 opened on the surface of the L-shaped air inlet pipe 23, an air intake disc 27 communicated with the L-shaped air inlet pipe 23, a long pipe 28 communicated with the air intake disc 27, an air outlet hole 29 opened on the surface of the long pipe 28, a first thread ring 25 and a second thread ring 26 which are connected to the external thread 24 and distributed on both sides of the second cross frame 21;

[0037] In specific use, the raw materials are scattered during the rotation of the drying outer casing 11. At this time, hot air is injected under high pressure through the L-shaped air inlet pipe 23. The hot air quickly enters each long pipe 28 through the air intake disc 27. In this way, the hot air is quickly blown out through the distributed air outlet holes 29, so that the hot air is evenly dispersed. And during the blowing process, the stirred and dispersed raw materials are blown again to improve the dispersion effect, so that the hot air can better dry and ensure the drying effect. During the rotation of the drying outer casing 11, the second cross frame 21 is limited between the first thread ring 25 and the second thread ring 26, and the round hole 22 rotates on the surface of the L-shaped air inlet pipe 23, so that the L-shaped air inlet pipe 23 does not rotate with the drying outer casing 11, improving the stability of the connection between the L-shaped air inlet pipe 23 and the external hot air pipe.

[0038] Furthermore, through the provided connection assembly, the cover plate 14 is locked and installed, and after installation, multi-point limiting is performed in the vertical direction to avoid the problem that the cover plate 14 shakes and causes the cover plate 14 to loosen;

[0039] Specifically, it further includes a connection assembly. The connection assembly includes a threaded long rod 31 fixed to the surface of the cover plate 14 and a threaded hole 32 opened on the surface of the first cross frame 13;

[0040] The threaded long rod 31 is connected to the threaded hole 32

[0041] The connection assembly further includes an annular frame 34 fixed to the surface of the cover plate 14 and an arc-shaped notch 33 opened on the surface of the first cross frame 13;

[0042] The first cross frame 13 includes five rectangular rods, and each rectangular rod has a corresponding arc-shaped notch 33;

[0043] During specific use, the threaded long rod 31 is connected to the threaded hole 32, thereby locking and covering the cover plate 14. During the covering process, the arc-shaped notch 33 fits with the annular frame 34, thus limiting the cover plate 14 in the vertical direction and preventing it from shaking.

[0044] Although the present utility model has been described with reference to the embodiments above, various improvements can be made to it and its components can be replaced with equivalents without departing from the scope of the present utility model. In particular, as long as there is no structural conflict, the various features in the disclosed embodiments of the present utility model can be combined with each other in any way. The reason for not exhaustively describing the situations of these combinations in this specification is only to save space and resources. Therefore, the present utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A drying device for producing polyvinyl alcohol powder, characterized in that, Comprising: A drying and mounting assembly, the drying and mounting assembly includes a provided drying outer casing (11), a first cross-frame (13) fixed to the side end of the drying outer casing (11), a cover plate (14) provided on the side of the first cross-frame (13), and a stirring rod (15) provided inside the drying outer casing (11); An air intake drying assembly, the air intake drying assembly includes a second cross-frame (21) fixed to the side end of the drying outer casing (11), a round hole (22) opened on the surface of the second cross-frame (21), an L-shaped air intake pipe (23) penetrating through the round hole (22), an external thread (24) opened on the surface of the L-shaped air intake pipe (23), an air intake disc (27) communicated with the L-shaped air intake pipe (23), a long pipe (28) communicated with the air intake disc (27), an air outlet hole (29) opened on the surface of the long pipe (28), a first threaded ring (25) and a second threaded ring (26) connected to the external thread (24) and distributed on both sides of the second cross-frame (21).

2. The drying device for producing polyvinyl alcohol powder according to claim 1, characterized in that, The drying and mounting assembly further includes an external gear disc (12) fixed to the outside of the drying outer casing (11); Wherein, there are three external gear discs (12), and the three external gear discs (12) are equally spaced.

3. The drying device for producing polyvinyl alcohol powder according to claim 2, characterized in that, There are several long pipes (28), and each long pipe (28) is provided with a corresponding air outlet hole (29).

4. A drying device for producing polyvinyl alcohol powder according to claim 3, characterized in that, It further includes a connection assembly, the connection assembly includes a threaded long rod (31) fixed to the surface of the cover plate (14), and a threaded hole (32) opened on the surface of the first cross-frame (13); The threaded long rod (31) is connected to the threaded hole (32).

5. The drying device for producing polyvinyl alcohol powder according to claim 4, characterized in that, The connection assembly further includes an annular frame (34) fixed to the surface of the cover plate (14) and an arc-shaped notch (33) opened on the surface of the first cross-frame (13); The first cross-frame (13) includes five rectangular rods, and each rectangular rod has a corresponding arc-shaped notch (33).

6. A drying device for producing polyvinyl alcohol powder according to claim 5, characterized in that: The annular frame (34) is engaged with the distributed arc-shaped notches (33).

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