Powder discharging pipe structure of polypropylene second reactor

Abstract

The utility model discloses a polypropylene second reactor powder discharging pipe structure which comprises a vertical pipe and a horizontal pipe which are integrally formed, the vertical pipe and the horizontal pipe are directly arranged in a mutually perpendicular mode, the vertical pipe is fixedly connected to the left end of the horizontal pipe, and meanwhile connecting flanges are integrally formed at the left end and the right end of the horizontal pipe and the top end of the vertical pipe. The horizontal pipe is further provided with an auxiliary heat dissipation device, the auxiliary heat dissipation device comprises a lower pipe clamp and an upper pipe clamp, and the lower pipe clamp and the upper pipe clamp are arranged on the horizontal pipe in an embracing mode. The lower pipe clamp and the upper pipe clamp are located on the right side of the vertical pipe, and meanwhile the left end of the lower pipe clamp extends leftwards to be provided with a clinging plate. A plurality of cooling fins are integrally formed under the clinging plate; the square elbow structure and the auxiliary heat dissipation device enhance the heat dissipation capacity of the square elbow structure, and further reduce filaments generated by melting of the powder due to heat generated by friction.

Description

Technical Field

[0001] The utility model relates to the field of a polypropylene powder material discharge pipe, in particular to a polypropylene second reactor powder material discharge pipe structure. Background Art

[0002] The discharge line of the second reactor in the existing polypropylene process is as follows Figure 7 As shown, the discharge line of the second reactor is an arc-shaped elbow. When the powder is discharged from the reactor, the friction between the powder and the arc-shaped elbow generates heat, causing the polypropylene powder to melt and then be pulled into filaments, affecting the product quality.

[0003] Therefore, it is necessary for us to improve such a structure to overcome the above-mentioned defects. Utility Model Content

[0004] The utility model aims to provide a powder material discharge pipe structure for a polypropylene second reactor to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The powder material discharge pipe structure of the second reactor of polypropylene comprises an integrally formed vertical pipe and a horizontal pipe, wherein the vertical pipe and the horizontal pipe are directly arranged perpendicular to each other, and the vertical pipe is fixedly connected to the left end of the horizontal pipe, and the left and right ends of the horizontal pipe and the top end of the vertical pipe are integrally provided with connecting flanges; an auxiliary heat dissipation device is also installed on the horizontal pipe, and the auxiliary heat dissipation device comprises a lower pipe clamp and an upper pipe clamp, wherein the lower pipe clamp and the upper pipe clamp are embraced on the horizontal pipe, and the rear ends of the lower pipe clamp and the upper pipe clamp are rotatably connected through a pin shaft; the front sections of the lower pipe clamp and the upper pipe clamp are movably connected through fisheye bolts; the lower pipe clamp and the upper pipe clamp are located on the right side of the vertical pipe, and the left end of the lower pipe clamp is extended to the left side to be provided with a close contact plate, wherein the top of the close contact plate is in an arc shape, and the close contact plate is close to the bottom side wall of the horizontal pipe located directly below the vertical pipe; and a plurality of heat dissipation fins are integrally provided directly below the close contact plate.

[0007] Furthermore, the lower tube clamp and the upper tube clamp are both made of aluminum alloy.

[0008] Furthermore, the lower tube clamp and the upper tube clamp are both semicircular, the front end of the lower tube clamp is provided with two first connecting parts, the rear end of the lower tube clamp is provided with two second connecting parts, and the rear end of the upper tube clamp is provided with a third connecting part, the third connecting part is located between the two second connecting parts, and the second connecting part and the third connecting part are rotatably connected by a pin; a fisheye bolt is provided between the two first connecting parts, and the head of the fisheye bolt is rotatably connected to the first connecting part by a pin; a fourth connecting part is provided at the front end of the upper tube clamp, and a U-shaped groove is provided at the front end of the fourth connecting part, and the threaded part of the fisheye bolt is clamped in the U-shaped groove, and a fixing nut is also threadedly connected to the threaded part of the fisheye bolt.

[0009] Furthermore, a compression spring and a gasket are sleeved on the fisheye bolt, and the upper and lower ends of the compression spring are respectively in contact with the bottom of the fourth connecting part and the top of the gasket.

[0010] Furthermore, thermal conductive silicone grease is coated between the close contact plate and the horizontal tube, and the thermal conductive silicone grease is used to fill the gap between the close contact plate and the horizontal tube, and is used to conduct the heat emitted from the horizontal tube to the heat dissipation fins on the close contact plate.

[0011] Furthermore, the right end of the heat dissipation fin extends below the lower tube clamp.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] After the transformation into a right-angle elbow, the friction is reduced and the filaments are greatly reduced;

[0014] The auxiliary heat dissipation device enhances the heat dissipation capacity of the area, further reducing the generation of filaments caused by the melting of powder due to frictional heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the powder discharge pipe of the second polypropylene reactor.

[0016] Figure 2 This is a front view of the powder discharge pipe structure of the second polypropylene reactor.

[0017] Figure 3 This is a schematic diagram of the structure of the auxiliary heat dissipation device in the powder discharge pipe structure of the second polypropylene reactor.

[0018] Figure 4 This is a schematic structural diagram from another angle of the auxiliary heat dissipation device in the powder discharge pipe structure of the second polypropylene reactor.

[0019] Figure 5 It is a side view of the auxiliary heat dissipation device in the powder discharge pipe structure of the second polypropylene reactor.

[0020] Figure 6 This is a schematic diagram of the structure of the upper pipe clamp in the powder discharge pipe structure of the second polypropylene reactor.

[0021] Figure 7 It is a schematic diagram of the powder material discharge pipe structure of the second polypropylene reactor in the prior art. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. The components of the embodiment of the utility model generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiment of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0023] See also Figure 1-6 The powder material discharge pipe structure of the polypropylene second reactor includes an integrally formed vertical pipe 1 and a horizontal pipe 2.

[0024] The vertical tube 1 and the horizontal tube 2 are directly arranged perpendicular to each other, and the vertical tube 1 is fixedly connected to the left end of the horizontal tube 2. At the same time, the left and right ends of the horizontal tube 2 and the top of the vertical tube 1 are integrally formed with a connecting flange 3;

[0025] In this solution, the traditional arc elbow is changed into a right-angle elbow, which reduces the friction between the powder and the pipe wall, that is, reduces the heat generated between the powder and the pipe wall, and further reduces the filaments produced by the melting of the powder due to the frictional heat;

[0026] At the same time, in order to further reduce heat accumulation, an auxiliary heat dissipation device 4 is also installed on the horizontal tube 2.

[0027] like Figure 1-6 The auxiliary heat dissipation device 4 includes a lower tube clamp 401 and an upper tube clamp 402, the lower tube clamp 401 and the upper tube clamp 402 are engaged with the horizontal tube 2, and the rear ends of the lower tube clamp 401 and the upper tube clamp 402 are rotatably connected by a pin shaft; the front ends of the lower tube clamp 401 and the upper tube clamp 402 are movably connected by a fisheye bolt 406;

[0028] The lower tube clamp 401 and the upper tube clamp 402 are both made of aluminum alloy, and the aluminum alloy has excellent heat dissipation performance, which is due to its good thermal conductivity;

[0029] The lower pipe clamp 401 and the upper pipe clamp 402 are both semicircular arc-shaped, the front end of the lower pipe clamp 401 is provided with two first connecting parts 403, the rear end of the lower pipe clamp 401 is provided with two second connecting parts 404, and the rear end of the upper pipe clamp 402 is provided with a third connecting part 405, the third connecting part 405 is located between the two second connecting parts 404, and the second connecting part 404 and the third connecting part 405 are rotatably connected by a pin shaft; a fisheye bolt 406 is provided between the two first connecting parts 403, and the head of the fisheye bolt 406 is rotatably connected to the first connecting part 403 by a pin shaft;

[0030] The front end of the upper pipe clamp 402 is provided with a fourth connecting portion 408, and the front end of the fourth connecting portion 408 is provided with a U-shaped slot 409, and the threaded portion of the fisheye bolt 406 is clamped in the U-shaped slot 409, and the threaded portion of the fisheye bolt 406 is also threadedly connected with a fixing nut 410;

[0031] At the same time, the fisheye bolt 406 is also sleeved with a compression spring 411 and a gasket 407, and the upper and lower ends of the compression spring 411 are respectively in contact with the bottom of the fourth connecting portion 408 and the top of the gasket 407;

[0032] The lower pipe clamp 401 and the upper pipe clamp 402 are engaged with the horizontal pipe 2, and the lower pipe clamp 401 and the upper pipe clamp 402 can be closely attached to the horizontal pipe 2 by setting the compression spring 411;

[0033] It is also worth noting that the lower tube clamp 401 and the upper tube clamp 402 are located on the right side of the vertical tube 1, and the left end of the lower tube clamp 401 is extended to the left to be provided with a close-fitting plate 420, wherein the top of the close-fitting plate 420 is arc-shaped, and the close-fitting plate 420 is close to the bottom side wall of the horizontal tube 2 located directly below the vertical tube 1; since the powder material first impacts the bottom side wall of the horizontal tube 2 directly below the vertical tube 1 when it enters the horizontal tube from the vertical tube 1, this position is prone to heat accumulation, and a plurality of heat dissipation fins 421 are integrally formed and provided directly below the close-fitting plate 420 to enhance the heat dissipation capacity at this location;

[0034] In some embodiments of the present solution, thermal conductive silicone grease is coated between the close-fitting plate 420 and the horizontal tube 2, and the thermal conductive silicone grease is used to fill the gap between the close-fitting plate 420 and the horizontal tube 2, and is used to conduct the heat emitted from the horizontal tube 2 to the heat dissipation fins on the close-fitting plate 420;

[0035] In some embodiments of the present solution, the right end of the heat dissipation fin 421 extends below the lower tube clamp 401 .

[0036] When the utility model is used, it is installed at the discharge port of the second reactor. When the polypropylene powder is discharged, a right-angle elbow is used instead of an arc elbow, which reduces the heat generation between the powder and the tube wall; the heat dissipation capacity of the place is also enhanced by the auxiliary heat dissipation device 4, and the filaments produced by the melting of the powder due to frictional heat generation are further reduced.

[0037] In the description of the present utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "left", "right" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use, or the orientation or positional relationship commonly understood by those skilled in the art, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the equipment 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 of the present utility model. In addition, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "connection" and the like should be understood in a broad sense, for example, "connection" 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 an indirect connection through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

Claims

1. The powder discharge pipe structure of the second polypropylene reactor comprises an integrally formed vertical pipe and a horizontal pipe, characterized in that: The vertical tube and the horizontal tube are directly arranged perpendicular to each other, and the vertical tube is fixedly connected to the left end of the horizontal tube, and the left and right ends of the horizontal tube and the top of the vertical tube are integrally provided with connecting flanges; an auxiliary heat dissipation device is also installed on the horizontal tube, and the auxiliary heat dissipation device includes a lower tube clamp and an upper tube clamp, the lower tube clamp and the upper tube clamp are embraced on the horizontal tube, and the rear ends of the lower tube clamp and the upper tube clamp are rotatably connected by a pin shaft; the front sections of the lower tube clamp and the upper tube clamp are movably connected by fisheye bolts; the lower tube clamp and the upper tube clamp are located on the right side of the vertical tube, and the left end of the lower tube clamp is extended to the left side to be provided with a close-fitting plate, wherein the top of the close-fitting plate is arc-shaped, and the close-fitting plate is close to the bottom side wall of the horizontal tube directly below the vertical tube; a plurality of heat dissipation fins are integrally provided directly below the close-fitting plate.

2. The powder discharge pipe structure of the polypropylene second reactor according to claim 1, characterized in that: The lower pipe clamp and the upper pipe clamp are both made of aluminum alloy.

3. The powder material discharge pipe structure of the polypropylene second reactor according to claim 1, characterized in that: The lower tube clamp and the upper tube clamp are both semicircular in shape, the front end of the lower tube clamp is provided with two first connecting parts, the rear end of the lower tube clamp is provided with two second connecting parts, and the rear end of the upper tube clamp is provided with a third connecting part, the third connecting part is located between the two second connecting parts, and the second connecting part and the third connecting part are rotatably connected by a pin; a fisheye bolt is provided between the two first connecting parts, and the head of the fisheye bolt is rotatably connected to the first connecting part by a pin; the front end of the upper tube clamp is provided with a fourth connecting part, and the front end of the fourth connecting part is provided with a U-shaped groove, the threaded part of the fisheye bolt is clamped in the U-shaped groove, and a fixing nut is also threadedly connected to the threaded part of the fisheye bolt.

4. The powder material discharge pipe structure of the polypropylene second reactor according to claim 3, characterized in that: A compression spring and a gasket are also sleeved on the fisheye bolt, and the upper and lower ends of the compression spring are respectively in contact with the bottom of the fourth connecting part and the top of the gasket.

5. The powder material discharge pipe structure of the polypropylene second reactor according to claim 1, characterized in that: Thermal conductive silicone grease is coated between the close-fitting plate and the horizontal tube, and the thermal conductive silicone grease is used to fill the gap between the close-fitting plate and the horizontal tube, and is used to conduct the heat emitted from the horizontal tube to the heat dissipation fins on the close-fitting plate.

6. The powder material discharge pipe structure of the polypropylene second reactor according to claim 1, characterized in that: The right end of the heat dissipation fin extends below the lower tube clamp.

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