Discharging device for disc vacuum filter

Abstract

The utility model relates to the technical field of discharging of disc vacuum filters, and discloses a discharging device for a disc vacuum filter, which comprises a workbench, a rotary vacuum filtering part and a discharging scraping and collecting part, and is characterized in that a support fixing plate is fixedly mounted on the outer wall of the bottom of the workbench. Through the cooperation of the discharged material collecting box, the collecting hopper, the material guide inclined plate, the material guide baffle plate, the threaded rotating block and the spring, the filter cake scraping device can directly act on a filter cake and effectively scrapes the filter cake from a filter disc of the disc filter. Due to the specially designed scraping structure, such as the shape and the angle of a scraper, the filter disc can adapt to the characteristics of a filter cake, so that the filter cake can be removed from the surface of the filter disc at the end of each filtering period, the discharging efficiency is improved, the filter cake can be scraped in a relatively mild manner, and the damage to the structure of the filter cake is reduced; the method is particularly important for materials needing to be kept in specific shapes or particle structures, and it can be ensured that the unloaded materials still have good quality and usability.

Description

Technical Field

[0001] The utility model relates to the technical field of discharging of disc vacuum filters, and specifically relates to a discharging device for a disc vacuum filter. Background Technique

[0002] A disc vacuum filter is a solid-liquid separation device widely used in the industrial field. Its working principle is based on vacuum suction. During the filtration process, the disc part of the disc vacuum filter is immersed in the suspension to be filtered, and the disc surface is covered with a filter medium (such as a filter cloth). When a vacuum is formed inside the disc, under the action of the pressure difference, the liquid in the suspension is sucked into the vacuum chamber inside the disc through the filter medium, while the solid particles are intercepted on the surface of the filter medium, thus realizing solid-liquid separation. The disc vacuum filter has multiple discs, and these discs rotate continuously, passing through working areas such as immersion, filtration, drying, and discharging in sequence, and repeating the above process continuously to achieve continuous solid-liquid separation operation.

[0003] The discharging efficiency of traditional discharging methods is often not high. Taking simple self-weight discharging as an example, when the viscosity of solid materials is relatively large or the adhesion to the filter cloth is relatively strong, it is difficult to discharge the materials quickly and effectively only by relying on the gravity of the materials themselves. In some industrial productions, the filtration cycle of the disc vacuum filter is relatively short. If the discharging process takes too much time, it will reduce the working efficiency of the entire device and cannot meet the needs of large-scale production. Content of the Utility Model

[0004] The purpose of the utility model is to provide a discharging device for a disc vacuum filter to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A discharging device for a disc vacuum filter, including a workbench, a rotating vacuum filtration part, and a discharging scraping and collecting part, characterized in that a support fixing plate is fixedly installed on the outer wall of the bottom of the workbench, and an installation groove is opened on the workbench; the rotating vacuum filtration part is arranged on the top of the workbench; the discharging scraping and collecting part is arranged on the top of the workbench.

[0006] Preferably, the rotating vacuum filtration part specifically includes: a connecting plate fixedly installed between the support fixing plates; a support block fixedly installed on the top of the workbench; a fixing block fixedly installed on the top of the workbench; and a groove body fixedly installed on the inner wall of the installation groove.

[0007] Preferably, a motor fixing frame is fixedly installed on the outer wall of the support block, a rotating motor is arranged inside the motor fixing frame, and an output end of the rotating motor is fixedly connected to a rotating central shaft, and the rotating central shaft is provided.

[0008] Preferably, the other end of the rotation central axis movably penetrates through one outer wall of the support block and extends to the other outer wall of the support block. The other end of the rotation central axis is rotatably connected to the outer wall of the fixed block. The outer wall of the rotation central axis is fixedly sleeved with filter discs at equal intervals in the circumferential direction. The filter discs are arranged inside the tank body. The filter discs are provided, and the filter discs usually have a relatively large surface area, and can provide a relatively large filtering area in a limited space.

[0009] Preferably, the discharging, scraping and collecting part specifically includes: a discharging and collecting box fixedly installed on one outer wall of the connecting plate; a collecting hopper arranged inside the discharging and collecting box; fixedly installed blocks fixedly installed on the outer wall of the workbench at equal intervals; a first discharging scraper arranged on the outer wall of the filter disc; a second discharging scraper arranged on the outer wall of the filter disc. The first discharging scraper and the second discharging scraper are provided. The first discharging scraper and the second discharging scraper can closely fit the surface of the disc and can scrape almost all the filter cakes on the disc clean.

[0010] Preferably, a material guiding inclined plate is fixedly installed on the top of the fixedly installed block. A scraping groove is formed in the material guiding inclined plate. Positioning and guiding holes are formed in the material guiding inclined plate at equal intervals. A material guiding baffle is fixedly installed on the top outer wall of the material guiding inclined plate. A sliding rod is slidably connected inside the positioning and guiding hole.

[0011] Preferably, a limiting plate is fixedly installed at one end of the sliding rod. A fixing hole is formed in the limiting plate. The other end of the sliding rod is fixedly connected to the outer walls of the first discharging scraper and the second discharging scraper respectively. Threaded rods are fixedly connected to the outer walls of the first discharging scraper and the second discharging scraper. The limiting plate is movably sleeved on the outer wall of the threaded rod through the fixing hole.

[0012] Preferably, a threaded rotating block is threadedly connected to the threaded rod. The outer wall of the threaded rotating block is rotatably connected to a rotating connecting block. The rotating connecting block is movably sleeved on the outer wall of the threaded rod. A spring is movably sleeved on the outer wall of the threaded rod. One end of the spring is fixedly connected to the rotating connecting block. The other end of the spring is fixedly connected to the outer walls of the first discharging scraper and the second discharging scraper respectively.

[0013] The utility model provides a discharging device for a disc vacuum filter. It has the following beneficial effects:

[0014] (1) Through the cooperation among the connecting plate, support block, motor fixing frame, rotating motor, fixing block, rotating central shaft, trough body, and filtering disc, the utility model can achieve all-round filtering operation. During the rotation of the disc, the filter fans in different areas successively go through stages such as filtering and drying. This means that the filtering area is fully utilized. Compared with the fixed filtering method, there will be no situation where local filtering areas are idle, thereby increasing the filtering volume per unit time, which can be continuously supplied to the filter. And the rotation of the filtering part ensures the uninterrupted progress of processes such as filtering and discharging. This continuity helps to maintain a stable filtering efficiency in large-scale production and reduce the fluctuations in the production process caused by filtering interruptions.

[0015] (2) Through the cooperation among the discharging collection box, collection hopper, guiding inclined plate, guiding baffle, threaded rotating block, and spring, the utility model can directly act on the filter cake and effectively scrape it off the filter disc of the disc filter. Due to its specially designed scraping structure, such as the shape and angle of the scraper, it can adapt to the characteristics of the filter cake, ensuring that at the end of each filtering cycle, the filter cake can be removed from the surface of the filter disc, improving the discharging efficiency. It can scrape the filter cake in a relatively gentle manner, reducing the damage to the structure of the filter cake, which is particularly important for materials that need to maintain a specific shape or particle structure. It can ensure that the discharged material still has good quality and usability. Description of the Drawings

[0016] Figure 1 is the front three-dimensional view of the overall structure of the utility model;

[0017] Figure 2 is the partial view of the rotating vacuum filtering part of the utility model;

[0018] Figure 3 is the partial view of the discharging collection box of the utility model;

[0019] Figure 4 is the partial view of the guiding inclined plate of the utility model;

[0020] Figure 5 is the partial view of the discharging scraping and collecting part of the utility model.

[0021] In the figure: 1 workbench, 2 support fixing plate, 3 rotating vacuum filtration part, 311 connecting plate, 312 support block, 313 motor fixing bracket, 314 rotating motor, 315 fixing block, 316 rotating central shaft, 317 tank body, 318 filtration disc, 4 discharging scraping and collecting part, 411 discharging collecting box, 412 collecting hopper, 413 fixed mounting block, 414 material guiding inclined plate, 415 material guiding baffle, 416 first discharging scraper, 417 limiting plate, 418 sliding rod, 419 positioning and guiding hole, 4111 second discharging scraper, 4112 threaded rod, 4113 rotating connecting block, 4114 threaded rotating block, 4115 spring. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Examples of the above embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation of the present invention.

[0024] Embodiment 1

[0025] A preferred embodiment of a discharging device for a disc vacuum filter provided by the present invention is as Figures 1-5 shown: A discharging device for a disc vacuum filter includes a workbench 1, a rotating vacuum filtration part 3, and a discharging scraping and collecting part 4. A support fixing plate 2 is fixedly installed on the bottom outer wall of the workbench 1, and an installation groove is provided on the workbench 1; the rotating vacuum filtration part 3 is arranged on the top of the workbench 1; the discharging scraping and collecting part 4 is arranged on the top of the workbench 1.

[0026] The rotating vacuum filtration part 3 specifically includes: a connecting plate 311 fixedly installed between the support fixing plates 2; a support block 312 fixedly installed on the top of the workbench 1; a fixing block 315 fixedly installed on the top of the workbench 1; and a tank body 317 fixedly installed on the inner wall of the installation groove.

[0027] A motor fixing bracket 313 is fixedly installed on the outer wall of the support block 312, a rotating motor 314 is arranged inside the motor fixing bracket 313, and the output end of the rotating motor 314 is fixedly connected to a rotating central shaft 316.

[0028] The other end of the rotation central axis 316 movably penetrates through one outer wall of the support block 312 and extends to the other outer wall of the support block 312. The other end of the rotation central axis 316 is rotatably connected to the outer wall of the fixed block 315. The outer circumference of the rotation central axis 316 is fixedly sleeved with filter discs 318 at equal intervals, and the filter discs 318 are arranged inside the trough body 317.

[0029] The discharging scraping and collecting part 4 specifically includes: a discharging and collecting box 411 fixedly installed on one outer wall of the connecting plate 311; a collecting hopper 412 arranged inside the discharging and collecting box 411; fixedly installed blocks 413 fixedly installed on the outer wall of the workbench 1 at equal intervals; a first discharging scraper 416 arranged on the outer wall of the filter disc 318; a second discharging scraper 4111 arranged on the outer wall of the filter disc 318.

[0030] In the process of this embodiment, the rotation motor 314 is installed on the motor fixing frame 313. When the rotation motor 314 is powered on, the rotation motor 314 drives the rotation central axis 316 to rotate. When the rotation central axis 316 rotates, it drives the filter disc 318 to rotate inside the trough body 317. When the disc vacuum filter works normally, the suspension containing solid particles is transported onto the filter disc 318. Under the action of vacuum, the filtrate penetrates through the filter cloth, and the filtered substances form a filter cake on the surface of the filter disc 318. During discharging, as the filter disc 318 rotates, when the part with the filter cake rotates to the position of the discharging scraping and collecting part 4, the discharging operation starts, and a full - range filtering operation can be realized. During the rotation of the disc, the filter sectors in different areas successively go through stages such as filtration and drying. This means that the filtering area is fully utilized. Compared with the fixed filtering method, there will be no situation where local filtering areas are idle, thereby increasing the filtering volume per unit time and being continuously supplied to the filter. The rotation of the filtering part ensures the uninterrupted progress of processes such as filtration and discharging. This continuity helps to maintain a stable filtering efficiency in large - scale production and reduce the fluctuations in the production process caused by filtration interruption.

[0031] Embodiment 2

[0032] Based on Embodiment 1, a preferred embodiment of a discharging device for a disc vacuum filter provided by the present utility model is as Figures 1-5 shown: A guiding inclined plate 414 is fixedly installed on the top of the fixedly installed block 413. A scraping groove is formed on the guiding inclined plate 414. Positioning and guiding holes 419 are equidistantly formed on the guiding inclined plate 414. A guiding baffle 415 is fixedly installed on the top outer wall of the guiding inclined plate 414. A sliding rod 418 is slidably connected inside the positioning and guiding hole 419.

[0033] One end of the sliding rod 418 is fixedly installed with a limiting plate 417. A fixing hole is formed in the limiting plate 417. The other end of the sliding rod 418 is fixedly connected to the outer walls of one side of the first discharge scraper 416 and the second discharge scraper 4111 respectively. Threaded rods 4112 are fixedly connected to the outer walls of one side of the first discharge scraper 416 and the second discharge scraper 4111. The limiting plate 417 is movably sleeved on the outer wall of the threaded rod 4112 through the fixing hole.

[0034] A threaded rotating block 4114 is threadedly connected to the threaded rod 4112. A rotating connecting block 4113 is rotatably connected to the outer wall of the threaded rotating block 4114. The rotating connecting block 4113 is movably sleeved on the outer wall of the threaded rod 4112. A spring 4115 is movably sleeved on the outer wall of the threaded rod 4112. One end of the spring 4115 is fixedly connected to the rotating connecting block 4113. The other end of the spring 4115 is fixedly connected to the outer walls of the first discharge scraper 416 and the second discharge scraper 4111 respectively.

[0035] In the process of this embodiment, the discharge collection box 411 of the discharge scraping and collection part 4 is used to collect the scraped filter cake. The collection hopper 413 serves to guide the filter cake into the discharge collection box 411. The material guiding inclined plate 414 and the material guiding baffle 415 further standardize the falling path of the filter cake to prevent the filter cake from scattering. The first discharge scraper 416 and the second discharge scraper 4111 are the components that directly contact the filter cake and scrape it. When the filter disk 318 rotates, the first discharge scraper 416 and the second discharge scraper 4111 contact the filter cake. Due to the rotation of the filter disk 318, relative movement is generated between the filter cake and the first discharge scraper 416 and the second discharge scraper 4111. The first discharge scraper 416 and the second discharge scraper 4111 scrape the filter cake off the filter disk 318. The limiting plate 417 is used to limit the movement range of the first discharge scraper 416 and the second discharge scraper 4111, ensuring that the scraper performs scraping operations within the normal working area, can directly act on the filter cake, and effectively scrape it off the filter disk of the disk filter. Due to its specially designed scraping structure, such as the shape and angle of the scraper, it can adapt to the characteristics of the filter cake, ensuring that at the end of each filtration cycle, the filter cake can be removed from the surface of the filter disk, improving the discharge efficiency, and being able to scrape the filter cake in a relatively gentle manner, reducing the damage to the structure of the filter cake. This is particularly important for materials that need to maintain a specific shape or particle structure, as it can ensure that the discharged material still has good quality and usability.

[0036] Working principle: The rotating motor 314 is installed on the motor fixing bracket 313. When the rotating motor 314 is powered on, the rotating motor 314 drives the rotating central shaft 316 to rotate. When the rotating central shaft 316 rotates, it drives the filter disc 318 to rotate inside the tank body 317. When the disc vacuum filter is working normally, the suspension containing solid particles is transported onto the filter disc 318. Under the action of vacuum, the filtrate penetrates the filter cloth, and the filtered substances form a filter cake on the surface of the filter disc 318. During discharging, as the filter disc 318 rotates, when the part with the filter cake rotates to the position of the discharging scraping and collecting part 4, the discharging operation starts. The discharging collecting box 411 of the discharging scraping and collecting part 4 is used to collect the scraped filter cake. The collecting hopper 413 serves to guide the filter cake into the discharging collecting box 411. The material guiding inclined plate 414 and the material guiding baffle 415 further standardize the falling path of the filter cake to prevent the filter cake from scattering. The discharging scraper one 416 and the discharging scraper two 4111 are the components that directly contact the filter cake and scrape it. When the filter disc 318 rotates, the discharging scraper one 416 and the discharging scraper two 4111 contact the filter cake. Due to the rotation of the filter disc 318, relative movement occurs between the filter cake and the discharging scraper one 416 and the discharging scraper two 4111. The discharging scraper one 416 and the discharging scraper two 4111 scrape the filter cake off the filter disc 318. The limiting plate 417 is used to limit the movement range of the discharging scraper one 416 and the discharging scraper two 4111 to ensure that the scraper performs the scraping operation within the normal working area. The sliding rod 418 passes through the positioning and guiding hole 419, providing stable guidance for the discharging scraper one 416 to ensure that it can maintain a stable posture during the scraping process and accurately scrape the filter cake. When adjusting the pressure of the discharging scraper one 416 and the discharging scraper two 4111 on the surface of the filter disc 318, by rotating the threaded turning block 4114, due to the effect of the thread, the threaded rod 4112 will move up and down along the rotating connecting block 4113, thereby changing the compression degree of the spring 4115. The spring 4115 exerts pressure on the discharging scraper one 416 and the discharging scraper two 4111. The filter cake scraped by the discharging scraper one 416 and the discharging scraper two 4111, under the action of gravity, follows the guidance of the material guiding inclined plate 414 and the material guiding baffle 415, falls into the collecting hopper 413, and then enters the discharging collecting box 411 for collection. The discharging collecting box 411 can be cleaned regularly, and the collected filter cake is transported to the subsequent processing procedure.

[0037] It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0038] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used 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 recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A discharging device for a disk vacuum filter, comprising a workbench (1), a rotating vacuum filtering part (3), and a discharging scraping and collecting part (4), characterized in that, A support fixing plate (2) is fixedly installed on the bottom outer wall of the workbench (1), and an installation groove is provided on the workbench (1); the rotating vacuum filtering part (3) is arranged on the top of the workbench (1); the discharging scraping and collecting part (4) is arranged on the top of the workbench (1). The discharging scraping and collecting part (4) specifically includes: A discharging collecting box (411) fixedly installed on one side outer wall of the connecting plate (311); A collecting hopper (412) arranged inside the discharging collecting box (411); Fixed installation blocks (413) fixedly installed on the outer wall of the workbench (1) at equal intervals; A discharging scraper one (416) arranged on the outer wall of the filtering disc (318); A discharging scraper two (4111) arranged on the outer wall of the filtering disc (318); A guide material inclined plate (414) is fixedly installed on the top of the fixed installation block (413), a scraping groove is provided on the guide material inclined plate (414), positioning and guiding holes (419) are provided on the guide material inclined plate (414) at equal intervals, a guide material baffle (415) is fixedly installed on the top outer wall of the guide material inclined plate (414), and a slide bar (418) is slidably connected inside the positioning and guiding hole (419).

2. The discharging device for a disk vacuum filter according to claim 1, wherein, The rotating vacuum filtering part (3) specifically includes: A connecting plate (311) fixedly installed between the support fixing plates (2); A support block (312) fixedly installed on the top of the workbench (1); A fixed block (315) fixedly installed on the top of the workbench (1); A tank body (317) fixedly installed on the inner wall of the installation groove.

3. The discharging device for a disk vacuum filter according to claim 2, wherein, A motor fixing frame (313) is fixedly installed on the outer wall of the support block (312), a rotating motor (314) is arranged inside the motor fixing frame (313), and an output end of the rotating motor (314) is fixedly connected with a rotating central shaft (316).

4. The discharging device for a disc vacuum filter according to claim 3, characterized in that, The other end of the rotating central shaft (316) movably penetrates through one side outer wall of the support block (312) and extends to the other side outer wall of the support block (312), the other end of the rotating central shaft (316) is rotatably connected with the outer wall of the fixed block (315), filtering discs (318) are fixedly sleeved on the outer wall of the rotating central shaft (316) at equal intervals in the circumferential direction, and the filtering discs (318) are arranged inside the tank body (317).

5. The discharging device for a disk vacuum filter according to claim 1, characterized in that, A limiting plate (417) is fixedly installed at one end of the slide bar (418), a fixing hole is provided on the limiting plate (417), the other end of the slide bar (418) is fixedly connected with one side outer walls of the discharging scraper one (416) and the discharging scraper two (4111) respectively, threaded rods (4112) are fixedly connected to one side outer walls of the discharging scraper one (416) and the discharging scraper two (4111), and the limiting plate (417) is movably sleeved on the outer wall of the threaded rod (4112) through the fixing hole.

6. The discharging device for a disc vacuum filter according to claim 5, wherein, A threaded rotating block (4114) is threadedly connected to the threaded rod (4112). A rotating connecting block (4113) is rotatably connected to the outer wall of the threaded rotating block (4114). The rotating connecting block (4113) is movably sleeved on the outer wall of the threaded rod (4112). A spring (4115) is movably sleeved on the outer wall of the threaded rod (4112). One end of the spring (4115) is fixedly connected to the rotating connecting block (4113), and the other end of the spring (4115) is fixedly connected to the outer walls of the first unloading scraper (416) and the second unloading scraper (4111).

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