Filtering and impurity removing device capable of preventing blockage

Abstract

The utility model relates to the technical field of filtering and impurity removing devices, and discloses an anti-clogging filtering and impurity removing device which comprises a filtering box, a liquid inlet pipe is fixedly installed at the top of the filtering box, a liquid discharge pipe is fixedly installed on the side wall of the filtering box, a collecting box is movably connected to the inner wall of the filtering box, and a liquid outlet pipe is fixedly installed on the side wall of the collecting box. According to the filtering and impurity removing device capable of preventing blockage, a motor is started to drive a lead screw to rotate, meanwhile, a sliding block and a scraping plate are matched to clean impurities on the filtering net, and the impurities are pushed into a collecting box to be stored; meanwhile, a brush is matched to clean the filter screen after being cleaned by the scraper blade again, so that the cleaning effect on the filter screen is further improved, the filter screen can be prevented from being blocked by impurities, the impurities on the filter screen can be discharged, and the filter efficiency of the filter screen is prevented from being influenced by accumulation of the impurities.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering and impurity removing devices, in particular to a filtering and impurity removing device that can prevent blockage. Background Technique

[0002] Chemical production refers to the processing industry that uses petroleum, natural gas, etc. as raw materials to produce products such as petroleum products and petrochemical products. Fine chemical products are one of the important products of petrochemical industry and are often used as solvents and raw materials for chemical synthesis. Therefore, it is necessary to strictly control their purity. Filtering and impurity removal is one of the main methods to improve the purity of fine chemical products.

[0003] According to a disclosed filtering and impurity removing device for fine chemical products (publication number: CN215026639U), in the above application, the reciprocating movement of the filtering barrel will drive the gear to reciprocate. Since the rack is meshed with the gear, the reciprocating movement of the gear will cause the rack to rotate forward and backward, and the forward and backward rotation of the rack will drive the rotating shaft to rotate forward and backward. The forward and backward rotation of the rotating shaft will drive the cleaning brush and the scraper to rotate, so that the cleaning brush and the scraper can effectively clean the impurities filtered on the surface of the filter screen, preventing the impurities from blocking the filter screen and ensuring the filtering effect.

[0004] This device uses the cleaning brush and the scraper to clean the impurities on the surface of the filter screen. Although it can prevent the filter screen from being blocked by impurities, when the cleaning brush and the scraper rotate to clean, the impurities are still on the filter screen and cannot be discharged from the filter screen. Over time, the impurities will cover the entire filter screen, and then the filter screen will be unable to filter chemical products. Content of the Utility Model

[0005] The purpose of the utility model is to provide a filtering and impurity removing device that can prevent blockage, so as to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a filtering and impurity removing device that can prevent blockage, including a filtering box, a liquid inlet pipe is fixedly installed at the top of the filtering box, a liquid discharge pipe is fixedly installed on the side wall of the filtering box, a collection box is movably connected to the inner wall of the filtering box, a filter screen is fixedly installed on the inner wall of the filtering box, a sliding groove is opened on the inner wall of the filtering box, a cleaning mechanism for cleaning the filter screen is arranged inside the filtering box. By setting the cleaning mechanism, not only can the filter screen be prevented from being blocked by impurities, but also the impurities on the filter screen can be discharged. A guiding mechanism is arranged inside the filtering box. By setting the guiding mechanism, the scraper can be separated from the filter screen during the reset process, effectively preventing the scraper and the brush from bringing the impurities back to the filter screen. The cleaning mechanism includes:

[0007] Side plate, the side plate is fixedly installed on the outer wall of the filter box, a motor is fixedly installed on the side wall of the side plate, an output end of the motor is fixedly installed with a lead screw, and one end of the lead screw away from the motor penetrates through the filter box and is rotatably connected to the inner wall of the chute;

[0008] Slider, the slider is slidably connected to the inner wall of the chute, and the inner wall of the slider is threadedly connected to the outer wall of the lead screw;

[0009] Scraper, the scraper is slidably connected to the outer wall of the slider, and a brush is fixedly installed on the side wall of the scraper. By arranging the scraper and the brush, the filter screen can be cleaned.

[0010] Preferably, a spring is fixedly installed at the bottom of the slider, and one end of the spring away from the slider is fixedly installed on the inner wall of the scraper. By arranging the spring, the scraper can be driven to move downward and reset.

[0011] Preferably, the guiding mechanism includes an inclined groove, the inclined groove is opened on the inner wall of the filter box, the inclined groove is parallel to the chute, a limiting plate is fixedly installed on the inner wall of the inclined groove, the limiting plate is parallel to the chute, and an iron plate is hinged to the side wall of the limiting plate. The bottom of the iron plate fits on the inner wall of the inclined groove. By arranging the iron plate, the guiding rod can be guided, and by arranging the limiting plate, the guiding rod can be limited.

[0012] Preferably, a guiding rod is fixedly installed on the side wall of the scraper, one end of the guiding rod away from the scraper fits on the inner wall of the inclined groove, and the outer wall of the guiding rod fits on the outer wall of the limiting plate. By arranging the guiding rod, the scraper can be pulled.

[0013] Preferably, the brush fits on the upper surface of the filter screen, the bottom of the scraper fits on the upper surface of the filter screen, and the penetration part of the lead screw and the filter box is rotatably connected.

[0014] Preferably, the included angle between the filter screen and the filter box is 70°, and the chute is parallel to the filter screen.

[0015] Compared with the prior art, the present utility model provides a filter and impurity removal device that can prevent blockage, and has the following beneficial effects:

[0016] 1. For this filter and impurity removal device that can prevent blockage, by starting the motor to drive the lead screw to rotate, and at the same time cooperating with the slider and the scraper, the impurities on the filter screen can be cleaned, and the impurities can be pushed into the inside of the collection box for storage. At the same time, cooperating with the brush, the filter screen after being cleaned by the scraper can be cleaned again, further improving the cleaning effect on the filter screen. It can not only prevent the filter screen from being blocked by impurities, but also discharge the impurities on the filter screen, avoiding the accumulation of impurities and affecting the filtering efficiency of the filter screen.

[0017] 2. The anti-clogging filtering and impurity removing device can make the scraper and the brush separate from the upper surface of the filter screen during the reset process through the setting of the guiding mechanism, avoiding the impurities being brought back during the reset process of the scraper and the brush, so as to maintain the cleanliness of the filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 is a schematic cross-sectional structure diagram of the present utility model when viewed from the front;

[0020] Figure 3 is a schematic cross-sectional structure diagram of the present utility model when viewed from the side;

[0021] Figure 4 is a schematic plan structure diagram of the side cross-section of the present utility model;

[0022] Figure 5 is a partial structure diagram of the scraper of the present utility model;

[0023] Figure 6 For the present utility model Figure 1 is an enlarged structure diagram of part A;

[0024] Figure 7 For the present utility model Figure 2 is an enlarged structure diagram of part B;

[0025] Figure 8 For the present utility model Figure 3 is an enlarged structure diagram of part C.

[0026] In the figure: 1. Filter box; 2. Liquid inlet pipe; 3. Liquid discharge pipe; 4. Collection box; 5. Filter screen; 6. Slide groove; 7. Cleaning mechanism; 71. Side plate; 72. Slide block; 73. Scraper; 74. Motor; 75. Lead screw; 76. Brush; 77. Spring; 8. Guiding mechanism; 81. Inclined groove; 82. Limiting plate; 83. Iron plate; 84. Guide rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] Such as Figures 1-8As shown in the figure, the utility model provides a technical solution: a filter and impurity removal device that can prevent blockage, including a filter box 1. A liquid inlet pipe 2 is fixedly installed at the top of the filter box 1, and a liquid discharge pipe 3 is fixedly installed on the side wall of the filter box 1. Liquid is injected into the interior of the filter box 1 through the liquid inlet pipe 2, filtered by a filter net 5, and then discharged through the liquid discharge pipe 3. A collection box 4 is movably connected to the inner wall of the filter box 1. The impurities cleaned by the scraping plate 73 and the brush 76 will fall into the interior of the collection box 4 for centralized storage. By pulling the collection box 4 out of the filter box 1, the impurities inside can be poured out. A filter net 5 is fixedly installed on the inner wall of the filter box 1, and the included angle between the filter net 5 and the filter box 1 is 70°. A chute 6 is opened on the inner wall of the filter box 1, and the chute 6 is parallel to the filter net 5. A cleaning mechanism 7 for cleaning the filter net 5 is arranged inside the filter box 1. By setting the cleaning mechanism 7, not only can the blockage of the filter net 5 by impurities be avoided, but also the impurities on the filter net 5 can be discharged. A guiding mechanism 8 is arranged inside the filter box 1. By setting the guiding mechanism 8, the scraping plate 73 can be separated from the filter net 5 during the reset process, effectively preventing the scraping plate 73 and the brush 76 from bringing the impurities back to the filter net 5.

[0028] The above-mentioned cleaning mechanism 7 includes side plates 71, sliders 72, scraping plates 73, motors 74, lead screws 75, brushes 76, and springs 77. The side plates 71 are fixedly installed on the outer wall of the filter box 1. A motor 74 is fixedly installed on the side wall of the side plates 71. The output end of the motor 74 is fixedly installed with a lead screw 75. The end of the lead screw 75 away from the motor 74 penetrates the filter box 1 and is rotatably connected to the inner wall of the chute 6. The penetration part of the lead screw 75 and the filter box 1 is rotatably connected. The slider 72 is slidably connected to the inner wall of the chute 6. The inner wall of the slider 72 is threadedly connected to the outer wall of the lead screw 75. Starting the motor 74 drives the lead screw 75 to rotate. By the rotation of the lead screw 75, the slider 72 can be driven to slide on the inner wall of the chute 6. While the slider 72 slides, it will drive the scraping plate 73 to move synchronously. The scraping plate 73 is slidably connected to the outer wall of the slider 72. The bottom of the scraping plate 73 is attached to the upper surface of the filter net 5. The residual impurities above the filter net 5 can be pushed upward by the scraping plate 73 until the impurities are pushed into the interior of the collection box 4. A brush 76 is fixedly installed on the side wall of the scraping plate 73. The brush 76 is attached to the upper surface of the filter net 5. The filter net 5 cleaned by the scraping plate 73 can be cleaned again by the brush 76, further improving the cleaning effect. A spring 77 is fixedly installed at the bottom of the slider 72. The end of the spring 77 away from the slider 72 is fixedly installed on the inner wall of the scraping plate 73. When the limiting plate 82 disengages from the limit of the guiding rod 84, at this time, the scraping plate 73 can be pushed downward to reset by the elasticity of the spring 77, so that the scraping plate 73 can be attached to the upper surface of the filter net 5 again.

[0029] The above-mentioned guiding mechanism 8 includes an inclined groove 81, a limiting plate 82, an iron plate 83, and a guiding rod 84; the inclined groove 81 is opened on the inner wall of the filter box 1, the inclined groove 81 is parallel to the sliding groove 6, and a limiting plate 82 is fixedly installed on the inner wall of the inclined groove 81. By setting the limiting plate 82, the guiding rod 84 can be limited. The limiting plate 82 is parallel to the sliding groove 6, and an iron plate 83 is hinged to the side wall of the limiting plate 82. When the guiding rod 84 presses against the iron plate 83 during the movement, the iron plate 83 will rotate upward, so that the guiding rod 84 can continue to slide on the inner wall of the inclined groove 81 and pass through the iron plate 83. The bottom of the iron plate 83 fits on the inner wall of the inclined groove 81. When the guiding rod 84 passes through the iron plate 83 and disengages from the iron plate 83, at this time, under the action of its own gravity, the iron plate 83 will rotate downward to reset and fit inside the inclined groove 81. At this time, the inclined iron plate 83 can guide the guiding rod 84 during the reset process, so that the guiding rod 84 can slide on the inclined surface of the iron plate 83 to fit the upper surface of the limiting plate 82. A guiding rod 84 is fixedly installed on the side wall of the scraping plate 73. One end of the guiding rod 84 away from the scraping plate 73 fits on the inner wall of the inclined groove 81, and the outer wall of the guiding rod 84 fits with the outer wall of the limiting plate 82. When the slider 72 drives the scraping plate 73 to move toward the side close to the collection box 4, the scraping plate 73 will drive the guiding rod 84 to move synchronously while fitting on the inner wall of the inclined groove 81.

[0030] Working principle: Start the motor 74 to drive the lead screw 75 to rotate forward. By the rotation of the lead screw 75, the slider 72 can be driven to slide on the inner wall of the sliding groove 6 and gradually approach the motor 74. At the same time, the slider 72 will drive the scraping plate 73 to move synchronously, so that the scraping plate 73 gradually approaches the motor 74. At this time, the scraping plate 73 will move while fitting on the upper surface of the filter screen 5. The scraping plate 73 can push the impurities remaining above the filter screen 5 upward until the impurities are pushed into the interior of the collection box 4. At the same time, the scraping plate 73 will drive the brush 76 to move synchronously. By the movement of the brush 76, the filter screen 5 cleaned by the scraping plate 73 can be cleaned again. Through the cooperation of the scraping plate 73 and the brush 76, not only can the filter screen 5 be prevented from being blocked by impurities, but also the impurities on the filter screen 5 can be discharged to avoid the accumulation of impurities affecting the filtering efficiency of the filter screen 5.

[0031] When the slider 72 drives the scraper 73 to move towards the side close to the collection box 4, the scraper 73 will drive the guide rod 84 to move synchronously along the inner wall of the inclined groove 81. When the guide rod 84 presses against the iron plate 83 during the movement, the iron plate 83 will rotate upward, so that the guide rod 84 can continue to slide on the inner wall of the inclined groove 81 and pass through the iron plate 83. When the guide rod 84 passes through the iron plate 83 and disengages from it, the iron plate 83 will rotate downward to reset under its own gravity and fit inside the inclined groove 81. At this time, start the motor 74 to drive the lead screw 75 to reverse. By the reverse rotation of the lead screw 75, the slider 72 threadedly connected to it can be driven to slide on the inner wall of the chute 6 towards the side away from the motor 74. At the same time, the slider 72 will drive the scraper 73 to gradually move away from the motor 74. At this time, the scraper 73 will drive the guide rod 84 to move downward along the inner wall of the inclined groove 81. When the guide rod 84 moves to the iron plate 83, it will slide upward along the inclined surface of the iron plate 83 and gradually move above the limit plate 82, so that the guide rod 84 fits and moves downward on the upper surface of the limit plate 82. At the same time, the guide rod 84 will drive the scraper 73 to slide upward along the outer wall of the slider 72 and stretch the spring 77. By moving the scraper 73 upward, it can be separated from the filter screen 5 during the reset process, avoiding the scraper 73 bringing back impurities during the reset process. When the guide rod 84 fits and moves downward on the upper surface of the limit plate 82 to the bottom of the inclined groove 81, the limit plate 82 will disengage from the limit of the guide rod 84. At this time, the elastic force of the spring 77 can push the scraper 73 downward to reset, so that the scraper 73 can fit on the upper surface of the filter screen 5 again, so that the scraper 73 and the brush 76 can clean the filter screen 5 again.

[0032] The above has generally described the present utility model in detail. However, based on the present utility model, some modifications or improvements can be made, which are obvious to those of ordinary skill in the art. Therefore, the modifications or improvements made without departing from the spirit and idea of the present utility model are within the protection scope of the present utility model.

Claims

1. A clogging-resistant filtering and impurity removal device, comprising a filter box (1), characterized in that: A liquid inlet pipe (2) is fixedly mounted on the top of the filter box (1), a liquid discharge pipe (3) is fixedly mounted on the side wall of the filter box (1), a collecting box (4) is movably connected to the inner wall of the filter box (1), a filter screen (5) is fixedly mounted on the inner wall of the filter box (1), a slide groove (6) is provided on the inner wall of the filter box (1), a cleaning mechanism (7) for cleaning the filter screen (5) is arranged inside the filter box (1), a guiding mechanism (8) is arranged inside the filter box (1), and the cleaning mechanism (7) comprises: A side plate (71), the side plate (71) being fixedly mounted on the outer wall of the filter box (1), a motor (74) being fixedly mounted on the side wall of the side plate (71), a screw rod (75) being fixedly mounted on the output end of the motor (74), and an end of the screw rod (75) away from the motor (74) passing through the filter box (1) and being rotatably connected to the inner wall of the slide groove (6); A slider (72), wherein the slider (72) is slidably connected to the inner wall of the slide groove (6), and the inner wall of the slider (72) is threadedly connected to the outer wall of the screw rod (75); A scraper (73) is slidably connected to the outer wall of the slider (72), and a brush (76) is fixedly mounted on the side wall of the scraper (73).

2. The anti-clogging filtering and impurity removal device according to claim 1, characterized in that: A spring (77) is fixedly mounted on the bottom of the slider (72), and one end of the spring (77) away from the slider (72) is fixedly mounted on the inner wall of the scraper (73).

3. The anti-clogging filtering and impurity removal device according to claim 1 is characterized in that: The guide mechanism (8) comprises an inclined groove (81), the inclined groove (81) being provided on the inner wall of the filter box (1), the inclined groove (81) being parallel to the slide groove (6), a limit plate (82) being fixedly mounted on the inner wall of the inclined groove (81), the limit plate (82) being parallel to the slide groove (6), the side wall of the limit plate (82) being hinged with an iron plate (83), the bottom of the iron plate (83) being in contact with the inner wall of the inclined groove (81).

4. The anti-clogging filtering and impurity removal device according to claim 1 is characterized in that: A guide rod (84) is fixedly mounted on the side wall of the scraper (73), one end of the guide rod (84) away from the scraper (73) is in contact with the inner wall of the inclined groove (81), and the outer wall of the guide rod (84) is in contact with the outer wall of the limiting plate (82).

5. The anti-clogging filtering and impurity removal device according to claim 1 is characterized in that: The brush (76) is attached to the upper surface of the filter screen (5), the bottom of the scraper (73) is attached to the upper surface of the filter screen (5), and the screw rod (75) is rotatably connected to the penetration point of the filter box (1).

6. The anti-clogging filtering and impurity removal device according to claim 1, characterized in that: The angle between the filter screen (5) and the filter box (1) is 70°, and the slide groove (6) and the filter screen (5) are in a parallel state.

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