Filtering assembly and drying machine using same

Abstract

The utility model discloses a filtering assembly and a drying machine using the same. The filtering assembly comprises a sleeve, a cover plate and a filter screen unit, wherein a columnar cavity is formed in the sleeve; the cover plate is detachably matched with an opening in one side end of the columnar cavity of the sleeve in the depth direction; wherein the filter screen unit comprises a first flange, a second flange suitable for being detachably connected with the first flange, and a filter screen plate mounted in an inner hole of the second flange; the depth of the columnar cavity is greater than the axial length of the filter screen unit; the cover plate is further connected with a spray pipe suitable for being communicated with the columnar cavity in a matched mode. The sleeve is further connected with a liquid outlet pipeline communicated with the columnar cavity.

Description

Technical Field

[0001] This utility model relates to the field of drying equipment technology, and in particular to a filter component and a dryer using the same. Background Technology

[0002] A dryer is a mechanical device that uses heat energy to reduce the moisture content of materials. It is used to dry objects. The dryer heats the material to vaporize and release the moisture (generally water or other volatile liquid components) to obtain solid materials with a specified moisture content. The purpose of drying is to meet the needs of material use or further processing.

[0003] Rake dryer is a type of dryer. In the process of using a rake dryer, hot air is generally used to dry the material in the horizontal drying kettle. The heat is conducted to the horizontal drying kettle through the side wall of the horizontal drying kettle. The water vapor generated during the drying process is then sucked out and recovered through a vacuum tube.

[0004] For example, CN 220083459 U discloses a vacuum rake dryer, which includes: a horizontal drying vessel, multiple filter screen assemblies spaced on the outer side wall of the horizontal drying vessel, and multiple heating structures. Each filter screen assembly includes a perforation integrally formed on the side wall of the horizontal drying vessel, a filter screen welded to the side wall of the horizontal drying vessel to cover the perforation, and a bulging filter screen cover welded to the outer side wall of the horizontal drying vessel and adapted to cover the filter screen.

[0005] Based on the aforementioned dryer, the filter screen is directly welded to the side wall of the horizontal drying kettle. Practical experience has shown that this makes disassembly inconvenient during maintenance, thus directly impacting the overall ease of use of the dryer when the filter screen malfunctions. Furthermore, different materials have different particle sizes, requiring different filter screen specifications. Therefore, directly welding the filter screen to the side wall of the drying kettle reveals a lack of adaptability to different materials. Utility Model Content

[0006] The primary objective of this invention is to provide a filter assembly to address the technical problem of improving the ease of disassembly of sintered filter mesh.

[0007] The second objective of this invention is to provide a dryer that solves the technical problem of improving the ease of disassembly of the sintered filter screen used in it.

[0008] The filter assembly of this utility model is implemented as follows:

[0009] A filter assembly includes: a sleeve having a cylindrical cavity, a cover plate detachably fitted with an opening at one depth end of the cylindrical cavity of the sleeve, and a filter screen unit disposed within the cylindrical cavity; wherein...

[0010] The filter unit includes a first flange, a second flange adapted for detachable connection to the first flange, and a filter plate installed in the inner hole of the second flange; the depth of the columnar cavity is greater than the axial length of the filter unit; and

[0011] The cover plate is also equipped with a nozzle suitable for communicating with the columnar cavity;

[0012] The sleeve is also connected to a liquid outlet pipe that communicates with the cylindrical cavity.

[0013] In an optional embodiment of this utility model, the end of the sleeve facing the cover plate is provided with an outwardly flared annular connecting platform;

[0014] The cover plate is a circular plate with the same outer diameter as the annular connecting platform; and

[0015] The annular connecting platform is connected to the circular plate by clamps.

[0016] In an optional embodiment of this utility model, an annular sealing ring is also sandwiched between the circular plate and the annular connecting platform.

[0017] In an optional embodiment of this utility model, the clamp comprises two semi-circular clamp bodies;

[0018] The front ends of the two hoops are hinged together by connecting pins, and the rear ends of the two hoops are each provided with an integral horizontal connecting handle, which is connected together by fastening bolts.

[0019] In an optional embodiment of this utility model, a slot is provided on the inner side of the hoop body.

[0020] In an optional embodiment of this utility model, the width of the slot is greater than or equal to the sum of the thicknesses of the annular connecting platform, the circular plate, and the annular sealing ring.

[0021] In an optional embodiment of this invention, the nozzle has a nozzle that penetrates the cover plate.

[0022] The dryer of this utility model works as follows:

[0023] A dryer includes: a drying vessel; and a plurality of filter assemblies arranged at intervals on the outer wall of the drying vessel; wherein...

[0024] The sleeve of each filter assembly is welded and fixed to the side wall of the drying vessel at the end away from the cover plate; and

[0025] The first flange of each of the filter components is welded and fixed to the outer wall of the drying vessel;

[0026] The side wall of the drying kettle is provided with a hollow opening for one-to-one matching with the filter screens of multiple filter components. When the filter screen attached to the second flange is fastened and assembled with the first flange, each filter screen covers the corresponding hollow opening.

[0027] In an optional embodiment of this invention, the drying vessel is a horizontal vessel; and

[0028] Multiple filter components occupy 1 / 2 to 3 / 5 of the outer circumferential area of ​​the horizontal vessel; and the multiple filter components are arranged to extend from the bottom end of the horizontal vessel to the top end along the semi-circular direction.

[0029] In an optional embodiment of this invention, the drying vessel is further provided with a stirring shaft assembly;

[0030] The stirring shaft assembly includes:

[0031] The main shaft body has a hollow cavity extending along its axial direction;

[0032] The blade assembly includes a plurality of blade units spaced apart along the axial direction of the main shaft body, each blade unit including a disc-shaped blade arranged along the circumferential direction of the main shaft body; each blade has a hollow receiving cavity formed inside.

[0033] By adopting the above technical solution, the present invention has the following beneficial effects: the filter assembly and the dryer using the present invention can remove the filter screen plate of the filter unit from the side wall of the dryer by disassembling the second flange and the first flange, thereby facilitating thorough cleaning or replacement of the filter screen plate. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of the filter assembly of this utility model;

[0035] Figure 2 This is an exploded structural diagram of the filter component of this utility model;

[0036] Figure 3 This is a schematic diagram of the clamp structure of the filter assembly of this utility model;

[0037] Figure 4 This is a schematic diagram of the structure of the dryer of this utility model;

[0038] Figure 5 This is a schematic diagram of the filter assembly of the dryer of this utility model.

[0039] In the figure: 1. Sleeve; 1-1. Columnar cavity; 1-2. Annular connecting platform; 2. Cover plate; 3. Clamp; 4. First flange; 5. Second flange; 6. Filter screen; 7. Spray pipe; 7-1. Nozzle; 8. Liquid outlet pipe; 9. Annular sealing ring; 10. Drying kettle; 11. Main shaft body; 12. Disc-shaped blade. Detailed Implementation

[0040] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0041] Example 1:

[0042] Please see Figures 1 to 5 As shown, this embodiment provides a filter assembly, including: a sleeve 1 having a columnar cavity 1-1, a cover plate 2 that is detachably fitted with an opening on one side of the columnar cavity 1-1 in the depth direction of the sleeve 1, and a filter screen unit disposed in the columnar cavity 1-1.

[0043] The filter unit includes a first flange 4, a second flange 5 adapted to be detachably connected to the first flange 4, and a filter plate 6 installed in the inner hole of the second flange 5; the depth of the cylindrical cavity 1-1 is greater than the axial length of the filter unit; and a nozzle 7 adapted to communicate with the cylindrical cavity 1-1 is also fitted on the cover plate 2; the sleeve 1 is also connected to a liquid outlet pipe 8 connected to the cylindrical cavity 1-1. The nozzle 7 has a nozzle 7-1 that penetrates the cover plate 2. The design of the nozzle 7 allows high-pressure gas to be introduced into the filter plate 6, thereby facilitating the blowing of materials adhering to the filter plate 6. In this embodiment, the second flange 5 and the first flange 4 can be detachably fitted using, for example, but not limited to, bolts. The filter plate 6 can be fixed to the second flange 5 by, for example, but not limited to, welding. The second flange 5 is generally T-shaped, so that when the second flange 5 and the first flange 4 are assembled, the filter plate 6 can be inserted into the inner hole of the first flange 4 along with part of the second flange 5.

[0044] Regarding the detachable fit between the sleeve 1 and the cover plate 2, referring to the attached drawings, one optional configuration is provided: the end of the sleeve 1 facing the cover plate 2 has an outwardly flared annular connecting platform 1-2; the cover plate 2 is a circular plate with the same outer diameter as the annular connecting platform 1-2; and the annular connecting platform 1-2 and the circular plate are connected by a clamp 3. Based on the above structure, to improve the sealing fit between the cover plate 2 and the sleeve 1, an annular sealing ring 9 is also sandwiched between the circular plate and the annular connecting platform 1-2. The clamp 3 here can be any convenient and quick-opening clamp structure from the prior art; this embodiment does not impose an absolute limitation on this.

[0045] Based on the above, and referring to the accompanying drawings, in one optional embodiment, the clamp 3 includes a fastening bolt 3-1, a clamp body 3-2, a connecting pin 3-3, a groove 3-4, and a horizontal connecting handle 3-5. Both clamp bodies 3-2 are semi-circular structures, symmetrically fastened together to form an annular structure matching the outer diameter of the annular connecting platform 1-2 and the circular plate. The front ends of the two clamp bodies 3-2 are insert-type connecting structures, hinged together by the connecting pin 3-3, allowing rotation between them. The width of the groove 3-4 is greater than or equal to the sum of the thicknesses of the annular connecting platform 1-2, the circular plate, and the annular sealing ring 9.

[0046] Furthermore, each hoop 3-2 has an integral horizontal connecting handle 3-5 at its rear end. The free end of the horizontal connecting handle 3-5 has corresponding upper and lower U-shaped grooves. The lower section of the bolt 3-1 has a thin rod with an outer diameter smaller than the width of the U-shaped groove, while the upper section has a thicker rod with an outer diameter slightly larger than the width of the U-shaped groove. The thin rod is inserted into the two U-shaped grooves. The lower U-shaped groove has a locking pin 3-6, which passes through the U-shaped groove and the lower end of the bolt 3-1 to achieve a limiting position, allowing the bolt 3-1 to rotate. The thicker rod of the upper section of the bolt 3-1 is engaged in the upper U-shaped groove. Under the tension of the hoop 3-2, the upper U-shaped groove engages with the lower edge of the thicker rod, achieving upper and lower limiting of the two hoops 3-2. When disassembly is required, the upper section of the bolt 3-1 is pulled outwards, the bolt 3-1 rotates around the locking pin 3-6, and then the upper hoop 3-2 is opened to achieve disassembly.

[0047] In summary, for the filter assembly of this embodiment, the ends of the first flange 4 and the sleeve 1 away from the cover plate 2 can both be fixed to the outer wall of the drying vessel 10 when the filter assembly is used in a dryer, for example. The cover plate 2 is detachable from the sleeve 1. Thus, when the dryer needs to dry different materials, the required specifications of the filter screen 6 are also different. Therefore, when the filter screen 6 needs to be replaced, it is only necessary to separate the cover plate 2 from the sleeve 1, then separate the second flange 5 from the first flange 4, and take out the filter screen 6 from the sleeve 1 through the second flange 5. Then, the newly replaced filter screen 6 is put back into the sleeve 1 through the corresponding second flange 5 and fixed to the first flange 4. The cover plate 2 and the sleeve 1 are then tightened together by the clamp 3, thereby completing the replacement of the filter screen 6.

[0048] Example 2:

[0049] Please see Figures 1 to 5As shown, based on the filter assembly of Embodiment 1, this embodiment provides a dryer, including: a drying vessel 10, and a plurality of filter assemblies arranged at intervals on the outer wall of the drying vessel 10; wherein the end of the sleeve 1 of each filter assembly away from the cover plate 2 is welded and fixed to the outer wall of the drying vessel 10; and the first flange 4 of each filter assembly is welded and fixed to the outer wall of the drying vessel 10. It should be noted that the side wall of the drying vessel 10 is provided with a perforation for one-to-one cooperation with the filter screen plates 6 of the plurality of filter assemblies, and when the second flange 5 with the filter screen plate 6 is fastened and assembled with the first flange 4, the filter screen plate 6 exactly covers the perforation of the outer wall of the drying vessel 10. That is to say, the shape of the filter screen plate 6 is conformally designed to the shape of the perforation of the outer wall of the drying vessel 10 to improve the reliable cooperation between the filter screen plate 6 and the perforation. Of course, it is understood that the dryer of this application also includes a heating structure, which may be selected from, for example, but not limited to, the heating structure of the vacuum drum dryer disclosed in CN220083459U.

[0050] Referring to the accompanying drawings, in one embodiment, the drying vessel 10 used is a horizontal vessel. A horizontal vessel facilitates stirring of the material. Generally, the material does not fill the entire horizontal vessel; it only exists in a portion of the space. Due to gravity, the material mainly concentrates at the bottom, leaving a hollow area at the top. Considering this, the multiple filter components in this embodiment only need to meet the requirements of the areas where the material contacts the horizontal vessel. Therefore, in this embodiment, the multiple filter components occupy 1 / 2 to 3 / 5 of the outer circumference of the horizontal vessel; and the multiple filter components extend from the bottom to the top along a semi-circular direction. In one specific implementation, the multiple filter components occupy 1 / 2 of the outer circumference of the horizontal vessel, meaning that, considering the entire horizontal vessel, the multiple filter components are arranged only on half the circumference of the side wall.

[0051] In this embodiment, at least two filter components are spaced apart along the axial direction on the side wall of the drying vessel 10. Furthermore, the liquid outlet pipes 8 between the sleeves of multiple filter components located in the same semi-circular direction are connected by a pipe body; the pipe body has an external interface. It is worth noting that the pipe body here can be one or multiple pipe bodies, that is, multiple filter components are connected in series through the pipe body, so that multiple filter components form a whole passage.

[0052] Based on the above structure, when the outer interface of the tube is connected to the vacuum pipeline, on the one hand, materials with high moisture content can be filtered by the vacuum pump connected to the vacuum pipeline during the initial drying stage in the drying kettle 10, thereby removing some of the moisture and shortening the overall drying time and improving the drying efficiency. On the other hand, during the drying process, the moisture evaporated from the material can pass through the filter screen 6 and the sleeve 1 in sequence and be finally extracted by the vacuum pump connected to the vacuum pipeline. When the outer interface of the tube is connected to the water pumping pipeline, it can be used to clean materials that need to be cleaned, so that the water from the cleaned materials can pass through the filter screen 6 and the sleeve 1 in sequence and be finally extracted by the water pump connected to the water pumping pipeline. In other words, the dryer in this embodiment can not only filter and dry materials, but also meet the cleaning requirements. For the cleaning operation, only the outer interface of the tube needs to be connected to the water pumping pipeline through a branch pipe, without the need to design a separate complete structure for cleaning materials on the dryer. Therefore, this embodiment can meet multiple material processing needs with a simplified structure, resulting in lower overall equipment production and operating costs.

[0053] Furthermore, it should be noted that a stirring shaft assembly is also provided in the drying vessel 10; the stirring shaft assembly simultaneously performs the functions of stirring the material in the drying vessel 10 and exchanging heat with the material. Referring to the accompanying drawings, in one optional embodiment, the stirring shaft assembly includes: a main shaft body 11 having a hollow cavity extending along its axial direction; a blade assembly including a plurality of blade units spaced apart along the axial direction of the main shaft body 11, each blade unit including a disc-shaped blade 12 arranged along the circumferential direction of the main shaft body 11; each blade has a hollow receiving cavity formed inside. This embodiment, by using disc-shaped blades 12, can greatly increase the heating area, thereby improving the drying efficiency of the material in the drying vessel 10.

[0054] The above specific embodiments further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above are only specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0055] In the description of this utility model, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 utility model.

[0056] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0057] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0058] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be completely horizontal, but can be slightly tilted.

[0059] In this invention, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

Claims

1. A filter assembly characterized by, include: A sleeve having a columnar cavity, a cover plate that is detachably fitted with an opening at one end of the columnar cavity in the depth direction, and a filter unit disposed in the columnar cavity. in The filter unit includes a first flange, a second flange adapted for detachable connection to the first flange, and a filter plate installed in the inner hole of the second flange; the depth of the columnar cavity is greater than the axial length of the filter unit; and The cover plate is also equipped with a nozzle suitable for communicating with the columnar cavity; The sleeve is also connected to a liquid outlet pipe that communicates with the cylindrical cavity.

2. The filter assembly of claim 1, wherein, The end of the sleeve facing the cover plate is provided with an outwardly flared annular connecting platform; The cover plate is a circular plate with the same outer diameter as the annular connecting platform; and The annular connecting platform is connected to the circular plate by clamps.

3. The filter assembly of claim 2, wherein, An annular sealing ring is also sandwiched between the circular plate and the annular connecting platform.

4. The filter assembly of claim 3, wherein, The clamp comprises two semi-circular clamp bodies; The front ends of the two hoops are hinged together by connecting pins, and the rear ends of the two hoops are each provided with an integral horizontal connecting handle, which is connected together by fastening bolts.

5. The filter assembly of claim 4, wherein, The inner side of the hoop is provided with a slot.

6. The filter assembly of claim 5, wherein, The width of the slot is greater than or equal to the sum of the thicknesses of the annular connecting platform, the circular plate, and the annular sealing ring.

7. The filter assembly of any one of claims 1-6, wherein, The nozzle has a nozzle that penetrates the cover plate.

8. A dryer characterized by, include: A drying vessel, and a plurality of filter assemblies as described in any one of claims 1 to 7 arranged at intervals on the outer side wall of the drying vessel; in The sleeve of each filter assembly is welded and fixed to the outer wall of the drying vessel at the end away from the cover plate; and The first flange of each of the filter components is welded and fixed to the outer wall of the drying vessel; The side wall of the drying kettle is provided with a hollow opening for one-to-one matching with the filter screens of multiple filter components. When the filter screen attached to the second flange is fastened and assembled with the first flange, each filter screen covers the corresponding hollow opening.

9. Dryer according to claim 8, characterized in that The drying vessel is a horizontal vessel; and Multiple filter components occupy 1 / 2 to 3 / 5 of the outer circumferential area of ​​the horizontal vessel; and the multiple filter components are arranged to extend from the bottom end of the horizontal vessel to the top end along the semi-circular direction.

10. Dryer according to claim 8 or 9, characterized in that The drying kettle is also equipped with a stirring shaft assembly; The stirring shaft assembly includes: The main shaft body has a hollow cavity extending along its axial direction; The blade assembly includes a plurality of blade units spaced apart along the axial direction of the main shaft body, each blade unit including a disc-shaped blade arranged along the circumferential direction of the main shaft body; each blade has a hollow receiving cavity formed inside.

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