Dissolving device for pyromellitic dianhydride

Abstract

The utility model provides a pyromellitic dianhydride dissolving device which comprises an inner shell, a plurality of connecting columns arranged on the outer side wall of the inner shell, an outer shell arranged at one ends of the connecting columns, a connecting disc arranged on the upper portions of the outer shell and the inner shell, two electric heating pipes symmetrically arranged on the connecting disc, and a top cover arranged on the upper portion of the connecting disc. A connecting frame is arranged on the lower portion of the top cover, the top cover is connected to the inner side wall of the inner shell in a clamped mode through the connecting frame, a feeding port is formed in one side of the upper portion of the top cover, a sealing assembly is arranged at the feeding port, and a stirring mechanism is arranged at the axis of the lower portion of the top cover. The pyromellitic dianhydride can be quickly dissolved by matching the electric heating pipe, the inner shell and the outer shell with the stirring mechanism, so that the dissolution rate is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of pyromellitic dianhydride processing, in particular to a dissolving device for pyromellitic dianhydride. Background Art

[0002] Pyromellitic anhydride is a commonly used chemical raw material, mainly used in the synthesis of polyimide resins, epoxy resin modification and other polymer materials.

[0003] In order to facilitate the processing and further chemical reaction of pyromellitic dianhydride in downstream applications, it is necessary to dissolve it, thereby promoting the reaction, improving uniformity and improving processing safety. Therefore, the utility model provides a dissolving device for pyromellitic dianhydride, so that pyromellitic dianhydride can be quickly dissolved, thereby increasing the dissolution rate. Utility Model Content

[0004] In view of this, the utility model provides a dissolving device for pyromellitic anhydride, which can dissolve pyromellitic anhydride quickly through the arrangement of an electric heating tube, an inner shell and an outer shell with a stirring mechanism, thereby increasing the dissolution rate.

[0005] In order to solve the above technical problems, the utility model provides a dissolving device for pyromellitic dianhydride, comprising an inner shell, a plurality of connecting columns are arranged on the outer wall of the inner shell, the connecting columns are welded to the outer wall of the inner shell, an outer shell is arranged at one end of the plurality of connecting columns, the inner wall of the outer shell is welded to one end of the connecting column, a connecting plate is arranged on the upper part of the outer shell and the inner shell, the connecting plate is connected to the upper part of the outer shell and the inner shell by bolts, an aqueous solution is injected between the outer shell and the inner shell, two electric heating tubes are symmetrically arranged on the connecting plate, and the two electric heating tubes are One end is connected to the upper part of the connecting plate by bolts, and one end of the electric heating tube extends between the outer shell and the inner shell. A top cover is arranged on the upper part of the connecting plate, and a connecting frame is arranged on the lower part of the top cover. The connecting frame is welded to the lower part of the top cover, and the top cover is clamped on the inner wall of the inner shell through the connecting frame. A feed port is opened on one side of the upper part of the top cover, and the feed port can be integrally formed with the top cover by mold casting during production. A sealing assembly is arranged at the feed port, a stirring mechanism is arranged at the axis center of the lower part of the top cover, and a lower hopper is arranged at the lower part of the outer shell, and the lower hopper is welded to the lower part of the outer shell.

[0006] The stirring mechanism includes a transmission rod arranged at the axis center of the upper part of the top cover, the transmission rod is rotatably connected to the upper part of the top cover through a bearing, a plurality of rotating columns are arranged on the outer wall of the transmission rod, a plurality of rotating columns are welded on the outer wall of the transmission rod, a plurality of stirring blades are arranged on the outer walls of the plurality of rotating columns, a plurality of stirring blades are welded on the outer wall of each rotating column, and a driving assembly is arranged on the upper part of the transmission rod.

[0007] The driving assembly includes a driven gear arranged on the upper part of the outer side wall of the transmission rod, the driven gear is connected to the upper part of the top cover through a thrust bearing, a driving gear is arranged on one side of the driven gear and on the upper part of the top cover, the driving gear is also connected to the upper part of the top cover through a thrust bearing, the driven gear is meshed with the driving gear, a motor is arranged on the upper part of the driving gear, the output shaft of the motor is connected to the driving gear through a key, an L-shaped support plate is arranged on the upper part of the motor, the motor is connected to one side surface of the L-shaped support plate through bolts, and one end of the L-shaped support plate is connected to the upper part of the top cover.

[0008] The sealing assembly includes a cover plate arranged on one side of the feed port, the cover plate is connected to the side of the feed port through a hinge plate, a sealing cover is arranged on one side of the upper part of the cover plate, the sealing cover is fixedly connected to the upper part of the cover plate through a sol connection, a handle is arranged on the upper part of the sealing cover, and the handle is connected to the upper part of the sealing cover through bolts.

[0009] A fixing frame is arranged on the outer wall of the outer shell, and the fixing frame is connected to the outer wall of the outer shell by bolts. Support legs are arranged at the four corners of the lower part of the fixing frame, and the support legs are welded to the lower part of the fixing frame. A reinforcing column is arranged between every two supporting legs, and the reinforcing column is welded between the two supporting legs. A blocking component is arranged on the vertical surface of one of the reinforcing columns facing the lower hopper.

[0010] The blocking assembly includes an electric telescopic rod arranged on a vertical surface on one side of one of the reinforcement columns, the electric telescopic rod is connected to the vertical surface of a reinforcement column by bolts, a connecting plate is arranged at one end of the electric telescopic rod, the connecting plate is fixedly connected to the push rod end of the electric telescopic rod, a blocking plate is arranged on one side of the connecting plate, the blocking plate is welded to one side of the connecting plate, a sealing gasket is arranged on the upper part of the blocking plate, and the sealing gasket is fixedly connected to the upper part of the blocking plate by sol connection.

[0011] The beneficial effects of the above technical solution of the utility model are as follows:

[0012] 1. The electric heating tube, the inner shell and the outer shell cooperate with the stirring mechanism so that the pyromellitic anhydride can be quickly dissolved, thereby increasing the dissolution rate.

[0013] 2. The transmission rod and the components thereon can be driven by the provided driving assembly.

[0014] 3. The sealing component is provided so that the feed port can be sealed to avoid the waste of pyromellitic dianhydride due to sublimation during dissolution.

[0015] 4. A blocking component is provided so that the discharge hopper can be opened or closed, thereby allowing the pyromellitic anhydride to be discharged or sealed in the inner shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the overall structure of the other side of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the utility model with the partial parts of the shell removed;

[0019] Figure 4 This is a schematic diagram of the stirring mechanism structure of the utility model;

[0020] Figure 5 It is a schematic diagram of the structure of the top cover of the utility model and its components.

[0021] In the figure: 101, outer shell; 102, inner shell; 103, electric heating tube; 104, connecting column; 105, lower hopper; 106, top cover; 107, connecting frame; 108, feed port; 109, connecting plate;

[0022] 201, transmission rod; 202, rotating column; 203, stirring blade;

[0023] 301, driven gear; 302, driving gear; 303, motor; 304, L-shaped support plate;

[0024] 401, cover plate; 402, sealing cover; 403, handle;

[0025] 501, fixed frame; 502, supporting leg; 503, reinforcing column;

[0026] 601, electric telescopic rod; 602, connecting plate; 603, blocking plate; 604, sealing gasket. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the following will be combined with the appended drawings of the embodiment of the utility model. Figure 1-5 , the technical scheme of the embodiment of the utility model is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0028] like Figure 1 , 23: A dissolving device for isophthalic anhydride, comprising an inner shell 102, the inner shell 102 is arranged so that isophthalic anhydride can be dissolved therein, a plurality of connecting columns 104 are arranged on the outer wall of the inner shell 102, the connecting columns 104 are arranged so that the outer shell 101 can be supported, the connecting columns 104 are welded to the outer wall of the inner shell 102, so that the connection structure is more stable, an outer shell 101 is arranged at one end of the plurality of connecting columns 104, the outer shell 101 is arranged so that a space is formed between the inner shell 102 and the outer shell 101 to inject a water solution and prevent the electric heating tube 103, the inner wall of the outer shell 101 is welded to one end of the connecting column 104, so that the connection structure is more stable For added stability, a connecting plate 109 is provided on the upper part of the outer shell 101 and the inner shell 102. The connecting plate 109 is provided so that the inner shell 102 and the outer shell 101 can be further supported and can be sealed to prevent splashing of the aqueous solution when heated. The connecting plate 109 is connected to the upper part of the outer shell 101 and the inner shell 102 by bolts, so that the connecting plate 109 is easy to disassemble and assemble, and then it is easy to add the aqueous solution thereto. The aqueous solution is injected between the outer shell 101 and the inner shell 102, so that the electric heating tube 103 can heat the aqueous solution, and then the pyromellitic anhydride in the inner shell 102 can be heated and stirred, so that the pyromellitic anhydride can be quickly dissolved, thereby increasing the dissolution rate.

[0029] like Figure 1 , 3 As shown: two electric heating tubes 103 are symmetrically arranged on the connecting disk 109. The electric heating tubes 103 are arranged so as to heat the aqueous solution. Two are arranged so as to make the heating effect more uniform. One end of the two electric heating tubes 103 is connected to the upper part of the connecting disk 109 by bolts, so as to facilitate disassembly and assembly. One end of the electric heating tube 103 extends between the outer shell 101 and the inner shell 102. A top cover 106 is arranged on the upper part of the connecting disk 109. The top cover 106 is arranged so as to have a sealing effect and avoid waste of pyromellitic anhydride due to sublimation during heating and dissolution. A connecting frame 107 is arranged at the lower part of the top cover 106. A connecting block is arranged so as to enhance the fixing effect and avoid movement of the top cover 106 when it is fixed. The connecting frame 107 is welded to the lower part of the top cover 106, so as to make its connection structure more stable.

[0030] like Figure 1 , 34: the top cover 106 is clamped on the inner wall of the inner shell 102 through the connecting frame 107, so that the top cover 106 is easy to disassemble and assemble. A feed port 108 is provided on one side of the upper part of the top cover 106. The feed port 108 is provided so that pyromellitic dianhydride and other solutions can be added to the inner shell 102 for dissolution. The feed port 108 can be integrally formed with the top cover 106 through mold casting during production, so that the connection structure is more stable. A sealing component is provided at the feed port 108. A sealing component is provided to seal the feed port 108 to avoid waste of pyrophthalic anhydride due to sublimation during dissolution. A stirring mechanism is provided at the lower axis of the top cover 106 to accelerate the dissolution rate. A lower hopper 105 is provided at the lower part of the shell 101 to discharge pyrophthalic anhydride through the lower hopper 105 after dissolution. The lower hopper 105 is welded to the lower part of the shell 101 to make its connection structure more stable.

[0031] like Figure 4 As shown: the stirring mechanism includes a transmission rod 201 arranged at the upper axis of the top cover 106. The transmission rod 201 is arranged so that various parts on it can be supported, and the rotation of the transmission rod 201 can drive various parts on it to rotate accordingly. The transmission rod 201 is rotatably connected to the upper part of the top cover 106 through a bearing, so that it will not get stuck when it rotates. A plurality of rotating columns 202 are arranged on the outer wall of the transmission rod 201. The plurality of rotating columns 202 are arranged so that the stirring blade 203 can be supported. A plurality of rotating columns 202 are welded on the outer wall of the transmission rod 201. The plurality of stirring blades 203 are arranged on the outer side walls of the plurality of rotating columns 202. The plurality of stirring blades 203 are arranged so that the plurality of stirring blades 203 can rotate, thereby stirring the isophthalic anhydride and the dissolved solution, thereby accelerating the dissolution rate of isophthalic anhydride. The plurality of stirring blades 203 are welded on the outer side wall of each rotating column 202, thereby making the connection structure more stable. A driving assembly is arranged on the upper part of the transmission rod 201, and the driving assembly is arranged so that the transmission rod 201 can be driven.

[0032] like Figure 5As shown: the driving assembly includes a driven gear 301 arranged on the upper part of the outer wall of the transmission rod 201. The driven gear 301 is arranged so that the transmission rod 201 can be driven to rotate by the rotation of the driven gear 301. The driven gear 301 is connected to the upper part of the top cover 106 through a thrust bearing, so that the gear will not get stuck when it rotates. A driving gear 302 is arranged on one side of the driven gear 301 and on the upper part of the top cover 106. The driving gear 302 is arranged so that its rotation can drive the driven gear 301 to rotate accordingly. The driving gear 302 is also connected to the upper part of the top cover 106 through a thrust bearing, so that the driving gear 302 will not get stuck when it rotates. The driven gear 301 is meshed with the driving gear 302, so that The driving gear 302 can drive the driven gear 301 to rotate. A motor 303 is arranged on the upper part of the driving gear 302. The output shaft of the motor 303 is connected to the driving gear 302 through a key, so that the output shaft of the motor 303 rotates, thereby driving the driving gear 302 to rotate accordingly. An L-shaped support plate 304 is arranged on the upper part of the motor 303. The L-shaped support plate 304 is arranged so that the motor 303 can be supported, thereby preventing the output shaft of the motor 303 from rotating and rotating on its own. The motor 303 is connected to one side surface of the L-shaped support plate 304 by bolts, so that the motor 303 is easy to disassemble and assemble. One end of the L-shaped support plate 304 is connected to the upper part of the top cover 106, so that the L-shaped support plate 304 can be supported.

[0033] like Figure 2 , 5As shown: the sealing component includes a cover plate 401 arranged on one side of the feed port 108, the cover plate 401 is arranged so that the feed port 108 can be opened or closed by opening and closing the cover plate 401, the cover plate 401 is connected to the side of the feed port 108 by a hinge plate, so that the cover plate 401 is easy to open and close, a sealing cover 402 is arranged on one side of the upper part of the cover plate 401, the sealing cover 402 is arranged so that the cover plate 401 can be limited and the sealing effect can be enhanced, the sealing cover 402 is fixedly connected to the upper part of the cover plate 401 by sol connection, so that its connection structure is more stable, a handle 403 is arranged on the upper part of the sealing cover 402, the handle 403 is arranged so that the cover plate 401 is easy to open and close, the handle 403 is connected to the upper part of the sealing cover 402 by bolts, To facilitate disassembly and assembly, a fixed frame 501 is provided on the outer wall of the shell 101, and the fixed frame 501 is provided so that the components thereunder can be supported. The fixed frame 501 is connected to the outer wall of the shell 101 by bolts, so that the fixed frame 501 is easy to disassemble and assemble. Support legs 502 are provided at the four corners of the lower part of the fixed frame 501, and the support legs 502 are provided so that the components thereon can be firmly supported. The support legs 502 are welded to the lower part of the fixed frame 501, so that the connection structure thereof is more stable. A reinforcing column 503 is provided between every two supporting legs 502, and the reinforcing column 503 is provided so that the supporting structure of the supporting legs 502 is more stable. The reinforcing column 503 is welded between the two supporting legs 502, so that the connection structure thereof is more stable.

[0034] like Figure 1 , 2As shown: a blocking component is arranged on the vertical surface of one side of the reinforcing column 503 facing the lower hopper 105, and the blocking component is arranged so that the discharge hopper can be opened or closed, so that the pyromellitic anhydride can be discharged or sealed in the inner shell 102, and the blocking component includes an electric telescopic rod 601 arranged on the vertical surface of one side of the reinforcing column 503, and the electric telescopic rod 601 is arranged so that the push rod thereof moves to drive the various components thereon to move accordingly, and the electric telescopic rod 601 is connected to the vertical surface of a reinforcing column 503 by bolts, so that the electric telescopic rod 601 can be easily disassembled and assembled, and a connecting rod is arranged at one end of the electric telescopic rod 601 Plate 602, a connecting plate 602 is provided so as to support the blocking plate 603, the connecting plate 602 is fixedly connected to the push rod end of the electric telescopic rod 601, so that its connection structure is more stable, a blocking plate 603 is provided on one side of the connecting plate 602, and the blocking plate 603 is provided so as to block the lower hopper 105, the blocking plate 603 is welded to one side of the connecting plate 602, so that its connection structure is more stable, a sealing gasket 604 is provided on the upper part of the blocking plate 603, and the sealing gasket 604 is provided so as to increase the sealing effect, and the sealing gasket 604 is fixedly connected to the upper part of the blocking plate 603 by sol connection, so that its connection structure is more stable.

[0035] The use of the utility model:

[0036] When in use, pyromellitic anhydride and the dissolved solution are added from the feed port 108 (the blocking component is closed at this time). After adding, the cover plate 401 is closed, the motor 303 and the electric heating tube 103 are started, so that the transmission rod 201 drives the multiple stirring blades 203 to rotate, and the electric heating tube heats the aqueous solution, which can heat and stir the pyromellitic anhydride and the dissolved solution, so that the pyromellitic anhydride can be quickly dissolved, thereby increasing the dissolution rate. After the dissolution is completed, the blocking component can be opened to discharge and collect it.

[0037] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0038] The above is a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A dissolving device for pyromellitic dianhydride, characterized in that: The invention comprises an inner shell (102), wherein a plurality of connecting columns (104) are arranged on the outer side wall of the inner shell (102), an outer shell (101) is arranged at one end of the plurality of connecting columns (104), a connecting plate (109) is arranged on the upper part of the outer shell (101) and the inner shell (102), two electric heating tubes (103) are symmetrically arranged on the connecting plate (109), and a top cover (106) is arranged on the upper part of the connecting plate (109) A connecting frame (107) is provided at the lower part of the top cover (106), and the top cover (106) is clamped on the inner wall of the inner shell (102) through the connecting frame (107). A feed port (108) is provided on one side of the upper part of the top cover (106), and a sealing component is provided at the feed port (108). A stirring mechanism is provided at the axis center of the lower part of the top cover (106), and a lower hopper (105) is provided at the lower part of the outer shell (101).

2. The dissolving device for pyromellitic dianhydride according to claim 1, characterized in that: The stirring mechanism comprises a transmission rod (201) arranged at the upper axis of the top cover (106); a plurality of rotating columns (202) are arranged on the outer wall of the transmission rod (201); a plurality of stirring blades (203) are arranged on the outer walls of the plurality of rotating columns (202); and a driving assembly is arranged on the upper part of the transmission rod (201).

3. The dissolving device for pyromellitic dianhydride according to claim 2, characterized in that: The driving assembly comprises a driven gear (301) arranged on the upper part of the outer wall of the transmission rod (201); a driving gear (302) is arranged on one side of the driven gear (301) and on the upper part of the top cover (106); the driven gear (301) is meshed with the driving gear (302); a motor (303) is arranged on the upper part of the driving gear (302); an L-shaped support plate (304) is arranged on the upper part of the motor (303); one end of the L-shaped support plate (304) is connected to the upper part of the top cover (106).

4. The dissolving device for pyromellitic dianhydride according to claim 3, characterized in that: The sealing assembly comprises a cover plate (401) arranged on one side of the feed port (108), a sealing cover (402) is arranged on one side of the upper portion of the cover plate (401), and a handle (403) is arranged on the upper portion of the sealing cover (402).

5. The dissolving device for pyromellitic dianhydride according to claim 4, characterized in that: A fixing frame (501) is arranged on the outer wall of the outer shell (101), and supporting legs (502) are arranged at the four corners of the lower part of the fixing frame (501). A reinforcing column (503) is arranged between every two supporting legs (502), and a blocking component is arranged on the vertical surface of one of the reinforcing columns (503) facing the lower hopper (105).

6. The dissolving device for pyromellitic dianhydride according to claim 5, characterized in that: The blocking assembly comprises an electric telescopic rod (601) arranged on a vertical surface on one side of one of the reinforcing columns (503); a connecting plate (602) is arranged at one end of the electric telescopic rod (601); a blocking plate (603) is arranged on one side of the connecting plate (602); and a sealing gasket (604) is arranged on the upper part of the blocking plate (603).

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