Filter chassis with backflush function

Abstract

The present invention relates to a filter chassis with back-blowing function, comprising a base, a filter element and a perforated plate supported below the filter element are arranged at the upper end of the base, and a plurality of purge pipes are fixedly arranged at the base, one end of the purge pipe is used as a purge end and extends to the bottom of the filter element, and the other end is used as an air inlet end and extends downward to the outside of the base. By adopting the above scheme, the present invention provides a filter chassis with back-blowing function that improves drying, filtering effect and efficiency.

Description

Technical Field

[0001] The invention relates to the field of filtering, washing and drying equipment, and in particular to a filtering chassis with a back-blowing function. Background Art

[0002] Filtration, washing and drying equipment is a device that completes the filtering, washing and drying processes of materials in a tank to prevent the materials from being contaminated by foreign matter or microorganisms.

[0003] During the operation of filtering, washing and drying equipment, the material viscosity is often high. In this case, when drying, the material will easily clump due to the high viscosity, resulting in limited drying effect and efficiency. When filtering, the material with high viscosity is prone to bridging and affects the filtering effect and efficiency. Traditional equipment is difficult to overcome the above problems. Summary of the invention

[0004] In view of the shortcomings of the prior art, the object of the present invention is to provide a filter chassis with a back-blowing function that improves drying and filtering effects and efficiency.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: it includes a base, a filter element and a perforated plate supported below the filter element are arranged above the base, and it is characterized in that: the base is fixedly provided with a plurality of purge pipes, one end of the purge pipe serves as a purge end and extends to the bottom of the filter element, and the other end serves as an air inlet end and extends downward to the outside of the base.

[0006] By adopting the above technical solution and adding a purge pipe, the chassis can be purged during filtering or drying, and the bottom of the filter element is selected as the purge position, which is closer to the material and optimizes the purge effect. When filtering or drying, the occurrence of material agglomeration or bridging is reduced, thereby improving the drying and filtering effects and efficiency. Better results can be achieved without large-scale modifications to the interior of the equipment, and multiple purge pipes can be arranged as needed for targeted purge.

[0007] The present invention is further configured as follows: the purge pipes are arranged along a plurality of concentric circles of different diameters, the plurality of purge pipes in each circle are arranged equidistantly, and the number of purge pipes in each circle increases as the diameter increases.

[0008] By adopting the above technical solution, multiple purge pipes can make the purge effect more uniform. At the same time, as the diameter increases, the number of purge pipes increases, making the purge effect more uniform.

[0009] The present invention is further configured as follows: the purge end is provided with a purge nozzle, and the purge nozzle is provided with a protrusion inserted into the filter element and is welded and fixed to the filter element.

[0010] By adopting the above technical solution, the purging nozzle is inserted into the filter element and fixed by welding, thereby enhancing the connection strength and matching tightness between the two, thereby ensuring the purging effect.

[0011] The present invention is further configured as follows: a mounting plate is arranged at the periphery of the purge nozzle, a depression is arranged above the orifice plate, and a limiting cavity of the mounting plate is formed between the depression and the filter element.

[0012] By adopting the above technical solution, the existing orifice plate is reasonably utilized and a recess for accommodating the mounting disk is added to the orifice plate, while the supporting strength of the purge nozzle and the filter element is improved, thereby improving the reliability of the device.

[0013] The present invention is further configured as follows: the orifice plate is provided with a through hole for the purge nozzle to pass through the orifice plate below the depression, and a threaded locking nut is provided on the outer periphery of the part of the purge nozzle below the through hole, and the locking nut is abutted against the bottom of the orifice plate.

[0014] By adopting the above technical solution, the locking nut matched with the outer peripheral thread of the purge nozzle automatically eliminates the gap between the mounting plate and the recess during the rotation toward the orifice plate, thereby further improving the assembly stability and accuracy.

[0015] The present invention is further configured as follows: the base is provided with a mother liquid plate below the orifice plate, a sleeve is sleeved on the outer periphery of the purge pipe, and the mother liquid plate is provided with a welding hole for the sleeve to pass through and be welded and fixed to the sleeve.

[0016] By adopting the above technical solution, the mother liquid plate is used as an existing component of the chassis, and its sleeve for welding and protecting the purge pipe is reasonably utilized to reduce the possibility of impurities entering the purge pipe and the pressure it is subjected to, thereby extending the service life.

[0017] The present invention is further configured as follows: a positioning column is arranged below the purge nozzle, the upper end of the sleeve is sleeved on the positioning column and abuts against the purge nozzle, a first sealing ring is arranged at the abutting position, a limiting sleeve is fixedly arranged on the outer periphery of the air inlet end, and a limiting step is arranged on the outer periphery of the limiting sleeve which is adapted to the inner corner shape of the lower end of the sleeve.

[0018] By adopting the above technical solution, the limiting sleeve cooperates with the positioning column, and the sleeve can be quickly assembled under the premise that the purge pipeline is reliably fixed, thereby simplifying the sleeve fixing structure and improving the convenience of assembly.

[0019] The present invention is further configured as follows: a thread-matched limiting nut is provided on the outer periphery of the air inlet end below the limiting sleeve.

[0020] By adopting the above technical solution, when the limiting nut rotates toward the limiting sleeve, the limiting sleeve gradually approaches the sleeve and adapts the limiting step to the sleeve, thereby achieving stable limiting of the sleeve.

[0021] The present invention is further configured as follows: the positioning column is hollow and the hollow part serves as a plug-in cavity for plugging with the purge end; the purge end is provided with a first section and a second section with a diameter larger than the first section from top to bottom; a second sealing ring is provided between the outer periphery of the first section and the plug-in cavity; and the outer periphery of the second section is threadedly matched with the plug-in cavity.

[0022] By adopting the above technical solution, the positioning column not only positions the sleeve but also serves as a plug-in matching position with the purge pipe, making the structure more streamlined. The two-stage purge end, on the one hand, makes the sealing gap more irregular, reducing the possibility of impurities entering. On the other hand, since the thread and the second sealing ring installation position are located in different planes, it is easier to process quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a specific embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the arrangement of the purge pipeline in a specific embodiment of the present invention;

[0025] Figure 3 It is a structural schematic diagram of a purge pipeline in a specific embodiment of the present invention;

[0026] Figure 4 for Figure 3 A magnified view of middle;

[0027] Figure 5 for Figure 3 Enlarged view of B. DETAILED DESCRIPTION

[0028] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0030] like Figure 1 — Figure 5 As shown, the present invention discloses a filter chassis with back-blowing function, comprising a base 1, a filter element 2 and a perforated plate 3 supported below the filter element 2 are arranged above the base 1, the filter element 2 is generally a filter screen, and a plurality of purge pipes 4 are fixedly arranged on the base 1, one end of the purge pipe 4 serves as a purge end 41 and extends to the bottom of the filter element 2, and the other end serves as an air inlet end 42 and extends downward to the outside of the base 1, and an air pipe joint 423 is provided at the air inlet end 42. The purge pipe 4 is added to enable the chassis to perform a purge function during filtering or drying, and the bottom of the filter element 2 is selected as the purge position, which is closer to the material, and the purge effect is optimized. During filtering or drying, the occurrence of material agglomeration or bridging phenomenon is reduced, thereby improving the drying and filtering effects and efficiency, and a better effect can be achieved without large-scale modification of the interior of the equipment. The plurality of purge pipes 4 can be arranged as needed for targeted purge.

[0031] The purge pipes 4 are arranged along multiple concentric circles of different diameters, and the multiple purge pipes 4 in each circle are arranged equidistantly. The number of purge pipes 4 in each circle increases with increasing diameter. Multiple purge pipes 4 in multiple circles make the purge effect more uniform. At the same time, as the diameter increases, the number of purge pipes 4 increases, making the purge effect further uniform.

[0032] The purge end 41 is provided with a purge nozzle 43, and the purge nozzle 43 is provided with a protrusion 431 inserted into the filter element 2 and welded and fixed to the filter element 2. The purge nozzle 43 is inserted into the filter element 2 and welded and fixed to enhance the connection strength and fit tightness between the two, thereby ensuring the purge effect.

[0033] A mounting disk 432 is provided on the periphery of the purge nozzle 43, and a recess 31 is provided above the orifice plate 3. A limiting cavity 32 for the mounting disk 432 is formed between the recess 31 and the filter element 2. The existing orifice plate 3 is rationally utilized and a recess 31 for accommodating the mounting disk 432 is added to the orifice plate 3. At the same time, the supporting strength of the purge nozzle 43 and the filter element 2 is improved, thereby improving the reliability of the device.

[0034] The orifice plate 3 is provided with a through hole 33 of the orifice plate 3 through which the purge nozzle 43 passes, and the outer periphery of the purge nozzle 43 below the through hole 33 is provided with a threaded locking nut 34. The locking nut 34 is against the bottom of the orifice plate 3 and is threadedly matched with the outer periphery of the purge nozzle 43. When rotating toward the orifice plate 3, the locking nut 34 automatically eliminates the gap between the mounting disk 432 and the recess 31, thereby further improving the assembly stability and accuracy.

[0035] The base 1 is provided with a mother liquid plate 5 below the orifice plate 3, a sleeve 44 is sleeved on the outer periphery of the purge pipe 4, and the mother liquid plate 5 is provided with a welding hole 51 for the sleeve 44 to pass through and is welded and fixed to the sleeve 44. The mother liquid plate 5 is an existing component of the chassis, and its rational use for welding and protecting the sleeve 44 of the purge pipe 4 reduces the possibility of impurities entering the inside of the purge pipe 4 and the pressure it bears, thereby extending the service life.

[0036] A positioning column 433 is arranged below the purge nozzle 43, and the upper end of the sleeve 44 is sleeved on the positioning column 433 and abutted against the purge nozzle 43, and a first sealing ring 434 is arranged at the abutting position, and a limiting sleeve 421 is fixedly arranged on the outer periphery of the air inlet end 42, and a limiting step 4211 adapted to the inner corner shape of the lower end of the sleeve 44 is arranged on the outer periphery of the limiting sleeve 421. The limiting sleeve 421 cooperates with the positioning column 433, so that the sleeve 44 can be quickly assembled under the premise that the purge pipe 4 is reliably fixed, thereby simplifying the fixing structure of the sleeve 44 and improving the convenience of assembly.

[0037] A threaded limiting nut 422 is provided on the outer periphery of the air inlet end 42 below the limiting sleeve 421. When the limiting nut 422 rotates toward the limiting sleeve 421, the limiting sleeve 421 gradually approaches the sleeve 44 and adapts the limiting step 4211 to the sleeve 44, thereby achieving stable limiting of the sleeve 44.

[0038] The positioning column 433 is hollow and the hollow part serves as a plug-in cavity 4331 for plugging with the purge end 41. The purge end 41 is provided with a first section 411 and a second section 412 having a diameter larger than the first section 411 from top to bottom. A second sealing ring 413 is provided between the outer periphery of the first section 411 and the plug-in cavity 4331. The outer periphery of the second section 412 is threadedly matched with the plug-in cavity 4331. The positioning column 433 not only positions the sleeve 44 but also serves as a plug-in matching position with the purge pipe 4, making the structure more streamlined. The two-section purge end 41 makes the sealing gap more irregular on the one hand, reducing the possibility of impurities entering. On the other hand, since the thread and the second sealing ring installation position are located in different planes, it is easier to process quickly.

Claims

1. A filter chassis with back-blowing function, comprising a base, a filter element disposed above the base and a perforated plate supported below the filter element, characterized in that: The base is fixedly provided with a plurality of purge pipes, one end of the purge pipe serves as a purge end and extends to the bottom of the filter element, and the other end serves as an air inlet end and extends downward to the outside of the base; The filter chassis is used for filtering washing and drying equipment, and the filter element is a filter screen; The purge end is provided with a purge nozzle, and the purge nozzle is provided with a protrusion inserted into the filter element and is welded and fixed to the filter element; A mounting plate is arranged on the outer periphery of the purge nozzle, a depression is arranged above the orifice plate, and a limiting cavity of the mounting plate is formed between the depression and the filter element; The base is provided with a mother liquid plate below the orifice plate, a sleeve is sleeved on the outer periphery of the purge pipe, and the mother liquid plate is provided with a welding hole for the sleeve to pass through and be welded and fixed to the sleeve; A positioning column is arranged below the purge nozzle, the upper end of the sleeve is sleeved on the positioning column and abuts against the purge nozzle, a first sealing ring is arranged at the abutting position, a limiting sleeve is fixedly arranged on the outer periphery of the air inlet end, and a limiting step is arranged on the outer periphery of the limiting sleeve to match the inner corner shape of the lower end of the sleeve; The positioning column is hollow and the hollow part serves as a plug-in cavity for plugging into the purge end. The purge end is provided with a first section and a second section with a diameter larger than the first section from top to bottom. A second sealing ring is provided between the outer periphery of the first section and the plug-in cavity, and the outer periphery of the second section is threadedly matched with the plug-in cavity.

2. The filter chassis with back-flushing function according to claim 1, characterized in that: The purge pipes are arranged along a plurality of concentric circles of different diameters, and the plurality of purge pipes in each circle are arranged equidistantly, and the number of the purge pipes in each circle increases as the diameter increases.

3. The filter chassis with back-flushing function according to claim 1, characterized in that: The orifice plate is provided with a through hole for the purge nozzle to pass through the orifice plate below the depression, and a threaded locking nut is provided on the outer periphery of the part of the purge nozzle below the through hole, and the locking nut is against the bottom of the orifice plate.

4. The filter chassis with back-flushing function according to claim 1, characterized in that: The outer periphery of the air inlet end below the limiting sleeve is provided with a limiting nut with threaded fit.

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