Melt filter with vertical structure

Abstract

The invention provides a melt filter with a vertical structure, which comprises a cylinder structure, the cylinder structure comprises a straight cylinder and a lower conical cylinder connected with the straight cylinder, the straight cylinder comprises a straight inner cylinder and a straight outer cylinder, and the lower conical cylinder comprises a lower conical inner cylinder and a lower conical outer cylinder; the filter structure comprises a framework, a screen and an inner rotary drum, the framework is connected through a fastener on the flange end face of a larger opening of the straight inner barrel and the flange end face of a larger opening of the lower conical inner barrel, and the screen is nested between the inner rotary drum and the framework; the melt filter further comprises a stirring structure, and the stirring structure is installed at the bottom of the framework of the melt filter. The inner connecting pipe is welded through the inner wall of the straight inner cylinder body and is mounted between the straight inner cylinder body and the stirring structure. The melt filter is easy to mount and dismount, efficient separation of filter residues and products is achieved, it can be guaranteed that melt is in a molten state all the time in the filtering process, and deep cleaning of a filtering structure can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of petrochemical or new material melt filtration, in particular to a melt filter with a vertical structure. Background Art

[0002] At present, polymers are produced in the fields of petrochemicals and new materials, such as PET, PP, PE, PU, ​​Nylon, etc. The polymers initially produced often contain a lot of impurities and unmelted particles. If they are not filtered, they will cause blockage of the production line and serious decline in product quality. The polymer melt is a viscous flow with a temperature between the flow temperature or melting point and the decomposition temperature.

[0003] The current melt filtration technology has a low output per unit time, and the filtered product and the filter residue cannot be efficiently separated; the filter structure cannot be cleaned during the filtration stage, which can easily cause blockage of the filter structure; the melt participating in the filtration in the equipment adheres to the surface of the filter element and cannot be scraped off well, and the filtered melt cannot be pushed. In the process of melt filtration, due to the temperature change in the equipment, the melt changes from a viscous flow state to a block solid, which seriously damages the equipment. At the same time, the filter element replacement is also more troublesome. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the present invention provides a melt filter with a vertical structure, the melt filter comprising:

[0005] A cylinder structure, wherein the cylinder structure comprises a straight cylinder and a lower cone cylinder connected to the straight cylinder, wherein the straight cylinder comprises a straight inner cylinder and a straight outer cylinder, and the lower cone cylinder comprises a lower cone inner cylinder and a lower cone outer cylinder;

[0006] A filtering structure, the filtering structure comprising a frame, a screen and an inner drum, the frame being connected to the flange end faces of the larger openings of the straight inner cylinder and the lower cone inner cylinder through fasteners, and the screen being nested between the inner drum and the frame;

[0007] A stirring structure, wherein the stirring structure is installed at the bottom of the framework of the melt filter;

[0008] An internal pipe is welded through the inner wall of the straight inner cylinder and installed between the straight inner cylinder and the stirring structure.

[0009] In some of the embodiments, a jacket is coiled around the outer surface of the straight inner cylinder and the outer surface of the lower conical inner cylinder.

[0010] In some embodiments, a plurality of iron blocks are provided on the annular tube of the inner tube, and the iron blocks are welded to the inner wall of the straight inner cylinder to fix the inner tube in the melt filter. The inner tube includes a plurality of vertical tube structures, and circular holes are respectively opened on the vertical tube structures.

[0011] In some embodiments, the filter element structure is drum-shaped, the screen is evenly distributed with round holes of the same aperture, the inner drum is evenly distributed with square holes of the same aperture, and the area of ​​the square holes is larger than the area of ​​the round holes on the screen.

[0012] In some embodiments, a second circle ring is provided in the middle of the upper end surface of the skeleton, the second circle ring is connected to the first circle ring through a rib plate, and the second circle ring is connected to the skeleton base.

[0013] In some of the embodiments, the agitator structure includes an agitator, which is an anchor agitator and has an axial end mounted on the top of the filter, a brush mounted on one blade of the agitator, and a plurality of scrapers mounted on another blade of the agitator.

[0014] In some of the embodiments, the brush is detachable, and is connected to a blade of one of the unwelded brackets of the agitator by a first bolt, a first nut and a first gasket.

[0015] In some of the embodiments, the scraper is detachable and is connected to a blade of one of the welded brackets of the agitator by a second bolt, a bracket, a second gasket and a second nut.

[0016] In some embodiments, a motor is installed above the upper end cover on the top of the straight cylinder, four supports are installed at equal angles on the outer surface of the straight outer cylinder, and a ball valve is installed on the end surface of the smaller opening of the lower conical cylinder.

[0017] In some embodiments, the shell of the melt filter is provided with a spare port, a material inlet, a cleaning inlet, a residue and cleaning outlet, and a product outlet; the cleaning inlet is located on the side of the melt filter cylinder, the residue outlet and the cleaning outlet are the same outlet, and the opening located at the center of the lower end face of the skeleton passes through the lower cone cylinder in a straight direction, the material inlet is located in the area above the straight cylinder, the residue outlet and the cleaning outlet are located at the port of the lower cone cylinder, and the product outlet is arranged on the side of the lower cone cylinder.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] The vertical melt filter provided by the present invention increases the material discharge rate per unit time; realizes the cleaning of the filter screen of the filter structure, avoiding the blockage of the screen in the filter structure; realizes the easy disassembly and installation of the filter structure; realizes the scraping and pushing of the materials involved in the filtration; realizes the constant temperature in the equipment, preventing the melt from changing from a viscous flow state to a block solid and causing serious damage to the equipment; realizes the efficient diversion of the filtered product and the filter residue, i.e., the cleaning liquid; and realizes the reduction of the floor space occupied by the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of a melt filter of a vertical structure shown in an embodiment of the present invention;

[0021] Figure 2 for Figure 1 Schematic diagram of the fastener structure shown in;

[0022] Figure 3 This is a schematic diagram of the outer jacket structure of the inner cylinder shown in an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the internal structure of a vertical melt filter shown in an embodiment of the present invention;

[0024] Figure 5 for Figure 4 Schematic diagram of the skeleton structure in;

[0025] Figure 6 for Figure 4 Schematic diagram of the brush structure in FIG.

[0026] Figure 7 and Figure 8 for Figure 4 Schematic diagram of scraper structure in FIG.

[0027] Fig. 9 It is a partial enlarged schematic diagram of the filtering structure shown in an embodiment of the present invention;

[0028] Fig.10 It is a structural schematic diagram of an internal pipe shown in an embodiment of the present invention;

[0029] Wherein, the reference numerals are:

[0030] 1- Straight body;

[0031] 101-upper end cover;

[0032] 102-motor;

[0033] 103- support;

[0034] 104-ball valve;

[0035] 2-Lower cone;

[0036] 3- Filter structure;

[0037] 301-skeleton;

[0038] 3011-the second circle;

[0039] 3012-rib plate;

[0040] 3013-The first circle;

[0041] 3014-Skeleton base;

[0042] 302-screen;

[0043] 303-inner drum;

[0044] 4- Fasteners;

[0045] 401-nut;

[0046] 402-gasket;

[0047] 403-stud;

[0048] 5-Internal pipe;

[0049] 501-vertical tube structure;

[0050] 6- Jacket;

[0051] 7- Agitator;

[0052] 701-brush;

[0053] 7011-Nylon brush head;

[0054] 702-scraper;

[0055] 703-first bolt;

[0056] 704-first nut;

[0057] 705-first gasket;

[0058] 706- Brackets and fasteners;

[0059] 7061-second bolt;

[0060] 7062-Stand;

[0061] 7063-second gasket;

[0062] 7064-second nut;

[0063] 801-spare port;

[0064] 802-Material entrance;

[0065] 803-cleaning entrance;

[0066] 804-residue and cleaning outlet;

[0067] 805-Product export. DETAILED DESCRIPTION

[0068] The technical solution of the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments to further understand the purpose, solution and effect of the present invention, but it is not intended to limit the scope of protection of the claims attached to the present invention.

[0069] Certain words are used in the specification and subsequent claims to refer to specific components or parts. It should be understood by those of ordinary skill in the art that technical users or manufacturers may refer to the same component or part by different nouns or terms. This specification and subsequent claims do not use differences in names as a way to distinguish components or parts, but use differences in the functions of components or parts as the criteria for distinction. "Including" and "comprising" mentioned throughout the specification and subsequent claims are open-ended terms and should be interpreted as "including but not limited to". In addition, the word "connect" here includes any direct and indirect electrical connection means. Indirect electrical connection means include connection through other devices.

[0070] It should be noted that, in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and "about", or "approximately", "substantially", "left and right" and the like indicating directions or positional relationships or parameters are all based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description content, and do not indicate or imply that the referred device or element must have a specific direction, specific size, or be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0071] See also Figure 1-10According to an embodiment of the present invention, a melt filter with a vertical structure is provided, which is a vertical device. The melt filter comprises: a cylinder structure, wherein the cylinder structure comprises a straight cylinder 1 and a lower cone cylinder 2 connected to the straight cylinder, wherein the straight cylinder 1 comprises a straight inner cylinder and a straight outer cylinder, and the lower cone cylinder 2 comprises a lower cone inner cylinder and a lower cone outer cylinder; a filtering structure 3, wherein the filtering structure 3 comprises a skeleton 301, a screen 302 and an inner drum 303, wherein the skeleton 301 is connected to the flange end faces of the larger openings of the straight inner cylinder and the lower cone inner cylinder through fasteners 4, wherein the fasteners 4 comprise nuts 401, gaskets 402 and studs 403, wherein the screen 302 is nested between the inner drum 303 and the skeleton 301; a stirring structure, wherein the stirring structure is installed at the bottom of the skeleton 301 of the melt filter; an inner pipe 5, wherein the inner pipe 5 is welded to the inner wall of the straight inner cylinder and installed between the straight inner cylinder and the stirring structure.

[0072] The outer surface of the straight inner cylinder and the outer surface of the lower cone inner cylinder are coiled with a jacket 6. A plurality of iron blocks are arranged on the annular tube of the inner tube 5, and the iron blocks are welded to the inner wall of the straight inner cylinder to fix the inner tube in the melt filter. The inner tube 5 includes a plurality of vertical tube structures 501, and circular holes are respectively opened on the vertical tube structures 501.

[0073] The filter element structure is in the shape of a drum, the screen 302 is evenly distributed with round holes of the same aperture, the inner drum 303 is evenly distributed with square holes of the same aperture, and the area of ​​the square holes is larger than the area of ​​the round holes on the screen.

[0074] In this embodiment, a second circle ring 3011 is provided in the middle of the upper end surface of the skeleton 301, and the second circle ring 3011 is connected to the first circle ring 3013 through a rib plate 3012. The diameter of the first circle ring 3013 is larger than the second circle ring 3011. The second circle ring 3011 is connected to the skeleton base 3014, and the maximum outer diameter of the skeleton, the outer diameter of the cylinder flange and the outer diameter of the upper end flange cover are all the same.

[0075] The agitator structure in this embodiment includes an agitator 7, which is an anchor agitator and has its shaft end installed on the top of the filter. A brush 701 is installed on one blade of the agitator 7, and a plurality of scrapers 702 are installed on another blade of the agitator 7.

[0076] In this embodiment, the brush 701 is detachable and connected to a blade of the agitator that is not welded to a bracket by a first bolt 703, a first nut 704 and a first gasket 705. The brush 701 uses a nylon brush head 7011, the material of the brush is artificial fiber, and the distance between the brush surface and the central axis of the filter is equal to the minimum radius of the skeleton part in the cylinder.

[0077] In this embodiment, the scraper 702 is detachable and connected to a blade of a welded bracket of the agitator through a bracket and a fastener 706, specifically a second bolt 7061, a bracket 7062, a second gasket 7063 and a second nut 7064. The angle between the larger surface of the scraper and the larger surface of the blade of the welded bracket is 45°, and the minimum distance between the installed blade of the scraper and the frame is 5 mm.

[0078] The shell of the melt filter in this embodiment is provided with a spare port 801, a material inlet 802, a cleaning inlet 803, a residue and cleaning outlet 804 and a product outlet 805; the cleaning inlet 803 is located on the side of the melt filter cylinder, and is provided with two cleaning ports at the same distance from the flange cover, the residue and cleaning outlet 804 is the same outlet, and the opening at the center of the lower end face of the skeleton 301 passes through the lower cone cylinder 2 in an oblique vertical direction, the material inlet 802 is located in the area above the straight cylinder 1, the residue and cleaning outlet 804 is located at the port of the lower cone cylinder 2, and the product outlet 805 is arranged on the side of the lower cone cylinder 2.

[0079] In this embodiment, a motor 102 is installed above the upper end cover 101 at the top of the straight cylinder 1, four supports 103 are installed at equal angles on the outer surface of the straight outer cylinder, and a ball valve 104 is installed on the end surface of the smaller opening of the lower cone cylinder 2.

[0080] The vertical melt filter provided by the present invention welds the bracket 7062 to one of the blades of the stirrer at equal intervals, and then the larger surface of the scraper 702 and the larger surface of the blade of the welded bracket are fastened at an angle of 45° through the second bolt 7061, the second nut 7064, and the second gasket 7063. The minimum distance between the blade of the installed scraper 702 and the skeleton 301 is 10 mm. The brush 701 is fastened to the other blade without the welded bracket 7062 through the first bolt 703, the first nut 704, and the first gasket 705, wherein the brush 701 is a nylon brush head;

[0081] The skeleton 301 is placed in the melt filter so that the bolt holes on the first circle ring 3013 on the skeleton 301 correspond to the bolt holes on the cylinder one by one; the screen 302 is nested in the gap between the inner drum 303 and the skeleton 301, and inserted one by one from the upper end face of the skeleton 301 until the end face of the assembled filter element structure contacts the skeleton base 3014; after the bolt holes on the upper end cover 101, the bolt holes on the skeleton and the bolt holes on the upper end face of the melt filter correspond one by one, they are fastened and connected by nuts 401, gaskets 402 and studs 403;

[0082] The residue is installed on the same plane as the central axes of the cleaning port 804 , the material inlet 802 , the cleaning inlet 803 , and the product outlet 805 .

[0083] The design of the vertical melt filter structure provided by the present invention can avoid material clogging, the design of the skeleton structure can facilitate the disassembly and installation of the filter element, the setting of the jacket can make the temperature of the filter more constant to prevent the melt from agglomerating, and the design of the internal pipe structure can achieve deep cleaning of the filter structure to prevent clogging of the screen.

[0084] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A vertical melt filter, characterized in that: The melt filter comprises: A cylinder structure, wherein the cylinder structure comprises a straight cylinder and a lower cone cylinder connected to the straight cylinder, wherein the straight cylinder comprises a straight inner cylinder and a straight outer cylinder, and the lower cone cylinder comprises a lower cone inner cylinder and a lower cone outer cylinder; A filtering structure, the filtering structure comprising a frame, a screen and an inner drum, the frame being connected to the flange end faces of the larger openings of the straight inner cylinder and the lower cone inner cylinder through fasteners, and the screen being nested between the inner drum and the frame; A stirring structure, wherein the stirring structure is installed at the bottom of the framework of the melt filter; An internal pipe is welded through the inner wall of the straight inner cylinder and installed between the straight inner cylinder and the stirring structure.

2. The vertical melt filter according to claim 1, characterized in that: The outer surface of the straight inner cylinder and the outer surface of the lower conical inner cylinder are coiled with a jacket.

3. The vertical melt filter according to claim 1, characterized in that: The annular tube of the inner tube is provided with a plurality of iron blocks, which are welded to the inner wall of the straight inner cylinder to fix the inner tube in the melt filter. The inner tube includes a plurality of vertical tube structures, each of which is provided with a circular hole.

4. The vertical melt filter according to claim 1, characterized in that: The filter element structure is in the shape of a drum, the screen is evenly distributed with round holes of the same aperture, the inner drum is evenly distributed with square holes of the same aperture, and the area of ​​the square holes is larger than the area of ​​the round holes of the screen.

5. The vertical melt filter according to claim 1, characterized in that: A second circle ring is provided in the middle of the upper end surface of the frame, the second circle ring is connected to the first circle ring through a rib plate, and the second circle ring is connected to the frame base.

6. The vertical melt filter according to claim 1, characterized in that: The agitator structure comprises an agitator, which is an anchor agitator and has an axial end mounted on the top of the filter. A brush is mounted on one blade of the agitator, and a plurality of scrapers are mounted on another blade of the agitator.

7. The vertical melt filter according to claim 6, characterized in that: The brush is detachable, and is connected to a blade of one of the unwelded brackets of the agitator by a first bolt, a first nut and a first gasket.

8. The vertical melt filter according to claim 6, characterized in that: The scraper is detachable and is connected to a blade of one of the welded brackets of the agitator by a second bolt, a bracket, a second gasket and a second nut.

9. The vertical melt filter according to claim 6, characterized in that: A motor is installed above the upper end cover at the top of the straight cylinder, four supports are installed at equal angles on the outer surface of the straight outer cylinder, and a ball valve is installed on the end surface of the smaller opening of the lower cone cylinder.

10. The vertical melt filter according to claim 1, characterized in that: The shell of the melt filter is provided with a spare port, a material inlet, a cleaning inlet, a residue and cleaning outlet and a product outlet; the cleaning inlet is located on the side of the melt filter cylinder, the residue outlet and the cleaning outlet are the same outlet, and the opening at the center of the lower end face of the skeleton passes through the lower cone cylinder in a straight direction, the material inlet is located in the area above the straight cylinder, the residue outlet and the cleaning outlet are located at the port of the lower cone cylinder, and the product outlet is arranged on the side of the lower cone cylinder.

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