Cylinder type melt net-free filtering device with efficient self-cleaning function

Abstract

The utility model relates to the technical field of melt filtering, and particularly discloses a cylindrical melt net-free filtering device with an efficient self-cleaning function, which comprises a main shell, a filtering unit, a deslagging unit, a support frame and a driving unit, the filter unit is composed of a cylindrical filter screen and two end face filter plates, and the filter unit is connected with the inner end face of the main shell through a first driving shaft; the deslagging unit is connected with the inner end surface of the main shell through a second driving shaft, is positioned below the filtering unit and is communicated with the filtering unit; the driving unit is connected with the first driving shaft and the second driving shaft and used for providing power. The supporting frame is fixedly connected with the main shell and the driving unit. According to the barrel-type melt non-net filtering device disclosed by the utility model, the area of a filter is increased and the filtering efficiency is improved by adopting the barrel-shaped filtering assembly combined with the filtering plates at the two ends; and meanwhile, the impurities and the materials are separated more thoroughly under the centrifugal action of rotation of the main shell.

Description

Technical Field

[0001] This utility model relates to the field of melt filtration technology, and specifically discloses a cylindrical melt meshless filtration device with high efficiency self-cleaning function. Background Technology

[0002] In the processes of polymerization, extrusion, and plastic modification, a certain amount of waste is generated. This waste contains certain impurities during recycling. Furthermore, the recycling of some waste products contains even higher levels of impurities, and the composition of these impurities is diverse and uncertain. To recycle these products, it is necessary to filter out the impurities. The most widely used filter for this type of material on the market is melt filter without mesh.

[0003] Existing meshless filters for melts all suffer from the problem of slag purity. The impurities stripped off by existing meshless filters are discharged along with the material. These impurities contain a high proportion of usable materials, resulting in a huge waste of raw materials and causing even greater trouble in the treatment of slag waste. This is a problem that this type of filter has been unable to solve for a long time.

[0004] Therefore, a cylindrical melt meshless filter device with high efficiency and self-cleaning function is needed to solve the problem of low filtration purity of existing melt meshless filters. Utility Model Content

[0005] In view of this, this utility model proposes a cylindrical melt meshless filter device with high efficiency and self-cleaning function to solve the problem of low filtration purity of existing melt meshless filters.

[0006] This utility model provides a cylindrical melt meshless filter device with high efficiency and self-cleaning function, comprising:

[0007] The main shell is a cylindrical structure;

[0008] The filter unit is embedded in the cavity inside the main housing;

[0009] The slag discharge unit is a cylindrical structure, located below the filter unit and extending through the internal cavity of the main housing. The slag discharge unit is connected to the filter unit and is used to discharge the filter slag outside the filter unit.

[0010] A drive unit is connected to the filter unit and the slag discharge unit;

[0011] A support frame is fixedly connected to the drive unit and the main housing, and the support frame is used for support and fixation.

[0012] Furthermore, the main housing includes:

[0013] The cylindrical body is a hollow annular cylinder;

[0014] The end caps are two circular cover plates disposed on the two end faces of the cylinder, and the end caps are used to seal the cylinder.

[0015] A feed inlet is provided on the outer side of the cylinder, and the feed inlet is used to feed materials into the cylinder.

[0016] The first discharge port is located on the outer side of the cylinder and is used to discharge the filtered material.

[0017] Furthermore, the filtering unit includes:

[0018] The drive shaft is a cylindrical shaft with a cylindrical cavity inside. The drive shaft passes through the two end caps and is rotatably connected to the two end caps.

[0019] The filter assembly is a cylindrical structure consisting of a cylindrical filter screen and two end face filter plates. The filter assembly is disposed in the internal cavity of the cylinder and is fixedly connected to the annular side of the drive shaft.

[0020] The second discharge port is an arc-shaped through hole, with multiple holes evenly distributed on the annular side of the drive shaft located in the internal cavity of the filter assembly. The second discharge port is connected to the columnar cavity.

[0021] The third discharge port is an arc-shaped through hole, with multiple holes evenly spaced on the inner annular bottom surface of the columnar cavity, away from the second discharge port.

[0022] Furthermore, the slag discharge unit includes:

[0023] The housing is a cylindrical housing with one open end, located below the filter unit. The housing passes through the two end caps and is fixedly connected to the two end caps. The open end of the housing is the slag discharge port.

[0024] The slag inlet is located on the outer side of the housing below the filter assembly, and is used to feed the slag into the housing;

[0025] The slag discharge screw is located inside the housing.

[0026] Furthermore, the support frame includes:

[0027] The base plate is a square plate;

[0028] Four side plates are provided, and the four side plates are arranged parallel to each other on the top surface of the bottom plate. The two middle side plates are fixedly connected to the cylinder.

[0029] Furthermore, the driving unit includes:

[0030] The main motor and the auxiliary motor are respectively mounted on the two outer side plates;

[0031] The first coupling has one end connected to the output end of the main motor and the other end connected to the drive shaft;

[0032] The second coupling is connected at one end to the output end of the auxiliary motor and at the other end to the slag discharge screw.

[0033] Furthermore, an upwardly protruding diversion cone is provided on the outer surface of the drive shaft located inside the filter assembly, the diversion cone being used to guide the material into the second discharge port.

[0034] Furthermore, the main housing also includes:

[0035] Two end face scrapers are provided, which are long wedge-shaped. One end of each end face scraper is connected to the inner side of the two end caps respectively through an elastic tensioning device, and the other end is in contact with the two end face filter plates respectively.

[0036] The cylindrical scraper is designed as a long wedge. One end of the cylindrical scraper is fitted and connected to the inner side of the cylinder through an elastic tensioning device, and the other end is in contact with the cylindrical filter screen.

[0037] Furthermore, the support frame also includes:

[0038] Four rollers are provided, and each roller is fixedly connected to one of the four corners of the bottom surface of the base plate.

[0039] Furthermore, an annular groove is provided inside the end cap near the third discharge port at a position corresponding to the third discharge port. One side of the annular groove is connected to the third discharge port, and the other side is connected to the first discharge port. The annular groove is used to receive the material discharged from the third discharge port and prevent the material from splashing.

[0040] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0041] 1. The filter components in the filter unit are a combination of cylindrical and end-face filter plates. The cylindrical filter screen and end-face filter plates rotate in a circular motion under the drive of the drive unit, which makes the material movement cycle longer. In addition, the rotation of the cylinder has a centrifugal effect, which makes the separation of impurities and materials more thorough.

[0042] 2. The scraper is designed with a long wedge shape to fit the cylindrical filter screen and the end face filter plate. The fit is elastic and automatically tightened, which not only scrapes impurities more thoroughly, but also avoids the "scratching" phenomenon.

[0043] 3. By designing the slag discharge screw to be partially open for materials containing impurities, the screw can play a certain mixing role while discharging slag, allowing impurities to settle to the bottom of the screw channel, and further separating pure materials from impurities. Attached Figure Description

[0044] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0045] Figure 1 A front view of a cylindrical melt meshless filter device with high-efficiency self-cleaning function provided in an embodiment of the present invention;

[0046] Figure 2 A front cross-sectional view of the main housing, filter unit, and slag discharge unit provided in one embodiment of the present invention;

[0047] Figure 3 A side cross-sectional view of the main housing, filter unit, and slag discharge unit provided in one embodiment of the present invention;

[0048] Figure 4 for Figure 2 A magnified view of a portion of region A in the middle;

[0049] In the diagram: 100-Main shell; 110-Cylinder; 120-End cap; 121-Annular groove; 130-Inlet; 140-First outlet; 150-End face scraper; 160-Cylindrical scraper; 170-Elastic tensioning device; 200-Filter unit; 210-Drive shaft; 211-Columnar cavity; 212-Diverter cone; 220-Filter assembly; 221-Cylindrical filter screen; 222-End Filter plate; 230-Second discharge port; 240-Third discharge port; 300-Slag discharge unit; 310-Shell; 311-Slag discharge port; 320-Slag inlet; 330-Slag discharge screw; 400-Drive unit; 410-Main motor; 420-Auxiliary motor; 430-First coupling; 440-Second coupling; 500-Support frame; 510-Bottom plate; 520-Side plate; 530-Roller. Detailed Implementation

[0050] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0051] In the description of this application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation; or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0052] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0053] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0054] See Figure 1-4 As shown in some embodiments of this utility model, a cylindrical melt meshless filter device with high-efficiency self-cleaning function includes:

[0055] The main shell 100 is a cylindrical structure;

[0056] The filter unit 200 is embedded in the internal cavity of the main housing 100;

[0057] The slag discharge unit 300 is a cylindrical structure, located below the filter unit 200, and is installed through the cavity inside the main housing 100. The slag discharge unit 300 is connected to the filter unit 200 and is used to discharge the filter residue outside the filter unit 200.

[0058] The drive unit 400 is connected to the filter unit 200 and the slag discharge unit 300;

[0059] The support frame 500 is fixedly connected to the drive unit 400 and the main housing 100, and the support frame 500 is used for support and fixation.

[0060] It is understandable that the filter unit 200 and the slag discharge unit 300 are both embedded inside the main housing 100. The drive unit 400 drives the filter unit 200 to rotate, which lengthens the external material movement cycle. Furthermore, the rotation of the cylinder has a centrifugal effect, making the separation of impurities and materials more thorough.

[0061] See Figure 1-4 As shown, in some embodiments provided by this utility model, the main housing 100 includes:

[0062] The cylinder 110 is a hollow annular cylinder;

[0063] End caps 120 are two circular cover plates, which are set on the two end faces of the cylinder 110. End caps 120 are used to seal the cylinder 110.

[0064] The feed inlet 130 is located on the outer side of the cylinder 110 and is used to feed materials into the cylinder 110.

[0065] The first discharge port 140 is located on the outer side of the cylinder 110 and is used to discharge the filtered material.

[0066] It is understandable that external materials enter the cylinder 110 through the feed inlet 130, are filtered by the filter unit 200, and are discharged from the first discharge outlet 140; the end caps 120 are set at the two end openings of the cylinder 110, so that a sealed cavity is formed inside the cylinder 110, which effectively prevents the material from overflowing.

[0067] See Figure 1-4 As shown, in some embodiments provided by this utility model, the filter unit 200 includes:

[0068] The drive shaft 210 is a cylindrical shaft with a cylindrical cavity 211 inside. The drive shaft 210 passes through the end caps 120 and is rotatably connected to the end caps 120.

[0069] The filter assembly 220 is a cylindrical structure, consisting of a cylindrical filter screen 221 and two end face filter plates 222. The filter assembly 220 is disposed in the internal cavity of the cylinder 110 and is fixedly connected to the annular side of the drive shaft 210.

[0070] The second discharge port 230 is an arc-shaped through hole, and multiple holes are evenly provided on the annular side of the drive shaft 210 located in the internal cavity of the filter assembly 220. The second discharge port 230 is connected to the columnar cavity 211.

[0071] The third discharge port 240 is an arc-shaped through hole, with multiple holes evenly distributed on the inner bottom surface of the columnar cavity 211, away from the second discharge port 230.

[0072] Specifically, external materials are filtered into the internal cavity of the filter assembly 220 through the cylindrical filter screen 221 and the two end face filter plates 222, and then enter the cylindrical cavity 211 inside the drive shaft 210 through the second discharge port 230 and are subsequently discharged outside the drive shaft 210 through the third discharge port 240.

[0073] It is understandable that the filter component 220 in the filter unit 200 is a combination of a cylindrical shape and filter plates at both ends. The cylindrical filter screen 221 and the end filter plate 222 rotate in a circular motion under the drive of the drive unit 400, which makes the material movement cycle longer. In addition, the cylindrical rotation has a centrifugal effect, which makes the separation of impurities and materials more thorough.

[0074] See Figure 1-4 As shown, in some embodiments provided by this utility model, the slag discharge unit 300 includes:

[0075] The housing 310 is a cylindrical housing with one end open, which is located below the filter unit 200. The housing 310 passes through the end caps 120 and is fixedly connected to the end caps 120. The open end of the housing 310 is the slag discharge port 311.

[0076] The slag inlet 320 is located on the outer side of the housing 310 below the filter assembly 220, and is used to feed the slag into the housing 310.

[0077] The slag discharge screw 330 is located inside the housing 310.

[0078] Specifically, the slag inlet 320 is located on the outside of the housing 310 directly below the filter assembly 220. The size of the slag inlet 320 is larger than the shaft length of the filter assembly 220, so that the filter residue on the cylindrical filter screen 221 and the end face filter plate 222 of the filter assembly 220 can fall into the housing 310 and be discharged to the outside by the slag discharge screw 330.

[0079] See Figure 1-4 As shown, in some embodiments provided by this utility model, the support frame 500 includes: a base plate 510, which is a square plate; and four side plates 520, which are arranged in parallel on the top surface of the base plate 510, with the two middle side plates 520 being fixedly connected to the cylinder 110.

[0080] The drive unit 400 includes: a main motor 410 and an auxiliary motor 420, which are respectively mounted on the two outer side plates 520; a first coupling 430, one end of which is connected to the output end of the main motor 410 and the other end of which is connected to the drive shaft 210; and a second coupling 440, one end of which is connected to the output end of the auxiliary motor 420 and the other end of which is connected to the slag discharge screw 330.

[0081] Specifically, the main motor 410 and the auxiliary motor 420 transmit power to the drive shaft 210 and the slag discharge screw 330 respectively through the first coupling 430 and the second coupling 440, thereby driving the drive shaft 210 and the slag discharge screw 330 to rotate.

[0082] It is understandable that fixing the main motor 410 and the auxiliary motor 420 to the side plate 520 of the support frame 500 can effectively ensure the stability of the machine.

[0083] See Figure 1-4 As shown, in some embodiments provided by this utility model, an upwardly protruding diversion cone 212 is also provided on the outer surface of the drive shaft 210 located inside the filter assembly 220. The diversion cone 212 is used to guide the material into the second discharge port 230.

[0084] Specifically, the diversion cone 212 is located next to the second discharge port 230. After the material enters the interior of the filter assembly 220, it first comes into contact with the upwardly protruding diversion cone 212. The material then flows downward along the diversion cone 212 into the adjacent second discharge port 230.

[0085] It is understandable that multiple second feed inlets 130 can be evenly arranged around the diversion cone 212, and the material can quickly enter the second feed inlet 130 after being diverted by the diversion cone 212.

[0086] See Figure 1-4 As shown, in some embodiments provided by this utility model, the main housing 100 further includes:

[0087] Two end face scrapers 150 are provided. They are long wedge-shaped. One end of each end face scraper 150 is connected to the inner side of the end caps 120 through an elastic tensioning device 170. The other end is in contact with the end face filter plates 222.

[0088] The cylindrical scraper 160 is provided with a long wedge shape. One end of the cylindrical scraper 160 is fitted and connected to the inner side of the cylinder 110 through the elastic tensioning device 170, and the other end is in contact with the cylindrical filter screen 221.

[0089] Specifically, the scraper has a long wedge-shaped design that fits snugly against the cylindrical filter screen and the end face filter plate 222. The fit is automatically tightened with elasticity, which not only scrapes impurities more thoroughly but also effectively avoids the "scratching" phenomenon.

[0090] Understandably, after the filter residue outside the filter assembly 220 is scraped off by the scraper, it falls into the slag discharge screw 330 through the filter residue inlet. Since the slag discharge screw 330 is designed to be partially open for materials containing impurities, it plays a certain role in mixing while discharging slag, causing impurities to settle to the bottom of the screw channel, and further separating pure materials from impurities.

[0091] See Figure 1-4 As shown, in some embodiments provided by this utility model, the support frame 500 further includes: four rollers 530, which are fixedly connected to the four corners of the bottom surface of the base plate 510 respectively.

[0092] Understandably, the rollers 530 allow the cylindrical melt meshless filter device of the present invention to be moved flexibly, greatly increasing the practicality of the device.

[0093] See Figure 1-4 As shown, in some embodiments of the present invention, an annular groove 121 is provided in the end cap 120 near the third discharge port 240 at a position corresponding to the third discharge port 240. One side of the annular groove 121 is connected to the third discharge port 240, and the other side is connected to the first discharge port 140. The annular groove 121 is used to receive the material discharged from the third discharge port 240 and prevent the material from splashing.

[0094] Specifically, an annular groove 121 is formed inside the end cap 120 around the third discharge port 240, so that the material first enters the annular groove 121 from the third discharge port 240, and then is guided by the annular groove 121 into the first discharge port 140 for discharge.

[0095] It will be understood by those skilled in the art that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cylindrical melt meshless filter device with high-efficiency self-cleaning function, characterized in that, include: The main shell is a cylindrical structure; The filter unit is embedded in the cavity inside the main housing; The slag discharge unit is a cylindrical structure, located below the filter unit and extending through the internal cavity of the main housing. The slag discharge unit is connected to the filter unit and is used to discharge the filter slag outside the filter unit. A drive unit is connected to the filter unit and the slag discharge unit; A support frame is fixedly connected to the drive unit and the main housing, and the support frame is used for support and fixation. The main housing includes: The cylindrical body is a hollow annular cylinder; The end caps are two circular cover plates disposed on the two end faces of the cylinder, and the end caps are used to seal the cylinder. A feed inlet is provided on the outer side of the cylinder, and the feed inlet is used to feed materials into the cylinder. The first discharge port is located on the outer side of the cylinder, and the discharge port is used to discharge the filtered material. The filtering unit includes: The drive shaft is a cylindrical shaft with a cylindrical cavity inside. The drive shaft passes through the two end caps and is rotatably connected to the two end caps. The filter assembly is a cylindrical structure consisting of a cylindrical filter screen and two end face filter plates. The filter assembly is disposed in the internal cavity of the cylinder and is fixedly connected to the annular side of the drive shaft. The second discharge port is an arc-shaped through hole, with multiple holes evenly distributed on the annular side of the drive shaft located in the internal cavity of the filter assembly. The second discharge port is connected to the columnar cavity. The third discharge port is an arc-shaped through hole, with multiple holes evenly spaced on the inner annular bottom surface of the columnar cavity, away from the second discharge port.

2. The cartridge melt screenless filtration device of claim 1, wherein, The slag discharge unit includes: The housing is a cylindrical housing with one open end, located below the filter unit. The housing passes through the two end caps and is fixedly connected to the two end caps. The open end of the housing is the slag discharge port. The slag inlet is located on the outer side of the housing below the filter assembly, and is used to feed the slag into the housing; The slag discharge screw is located inside the housing.

3. The cylindrical melt meshless filter device according to claim 2, characterized in that, The support frame includes: The base plate is a square plate; Four side plates are provided, and the four side plates are arranged parallel to each other on the top surface of the bottom plate. The two middle side plates are fixedly connected to the cylinder.

4. The cartridge melt screenless filtration device of claim 3, wherein, The driving unit includes: The main motor and the auxiliary motor are respectively mounted on the two outer side plates; The first coupling has one end connected to the output end of the main motor and the other end connected to the drive shaft; The second coupling is connected at one end to the output end of the auxiliary motor and at the other end to the slag discharge screw.

5. The cartridge melt screenless filtration device of claim 4, wherein, The drive shaft is also provided with an upwardly protruding diversion cone on the outer surface inside the filter assembly. The diversion cone is used to guide the material into the second discharge port.

6. The cartridge melt screenless filtration device of claim 5, wherein, The main housing also includes: Two end face scrapers are provided, which are long wedge-shaped. One end of each end face scraper is connected to the inner side of the two end caps respectively through an elastic tensioning device, and the other end is in contact with the two end face filter plates respectively. The cylindrical scraper is designed as a long wedge. One end of the cylindrical scraper is fitted and connected to the inner side of the cylinder through an elastic tensioning device, and the other end is in contact with the cylindrical filter screen.

7. The cartridge melt screenless filtration device of claim 6, wherein, The support frame also includes: Four rollers are provided, and each roller is fixedly connected to one of the four corners of the bottom surface of the base plate.

8. The cartridge melt screenless filtration device of claim 7, wherein, An annular groove is provided inside the end cap near the third discharge port at a position corresponding to the third discharge port. One side of the annular groove is connected to the third discharge port, and the other side is connected to the first discharge port. The annular groove is used to receive the material discharged from the third discharge port and prevent the material from splashing.

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