Anti-blocking filter for formaldehyde processing

Abstract

The utility model relates to the technical field of gas treatment, in particular to an anti-blocking filter for formaldehyde processing. Comprising a top cover, a filter element, a first brush, a second brush, a driving mechanism and the like, the second brush is fixedly connected with the top cover, the first brush and the second brush make contact with the inner surface and the outer surface of the filter element respectively, and the driving mechanism is used for driving the first brush to rotate and meanwhile can drive the filter element to rotate reversely. And the first brush can brush and clean the outer surface of the filter element, and the second brush is fixed and can brush and clean the inner surface of the filter element rotating in the reverse direction. According to the utility model, the driving motor is used as driving force to drive the first brush to rotate and drive the filter element to rotate reversely, and the first brush and the second brush can clean the inner and outer surfaces of the filter element at the same time, so that the filter holes of the filter element can be prevented from being blocked by impurities, and the filtering effect of the filter element is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of gas processing, in particular to an anti-blocking filter for formaldehyde processing. Background Art

[0002] Formaldehyde is a common organic compound, a colorless gas with a pungent odor. It is widely used in chemical, pharmaceutical, construction and other fields and is an important chemical raw material.

[0003] In the methanol oxidation production process of formaldehyde, in order to ensure the quality of formaldehyde, the mixed gas composed of methanol, air and water vapor needs to be filtered before entering the reactor. The filtration mainly uses a filter, and the filter element is the core component of the filter. In order to ensure the filtering effect of the filter, the filter element needs to be cleaned after being used for a period of time, otherwise it will be blocked, and the production line needs to be shut down for cleaning, which will affect the production efficiency of the entire formaldehyde production line. Utility Model Content

[0004] In view of this, the utility model provides an anti-blocking filter for formaldehyde processing, which can overcome the disadvantage that the formaldehyde production line needs to be shut down when cleaning the existing filter, thereby affecting the production efficiency of the entire formaldehyde production line.

[0005] Technical solution:

[0006] A blockage-proof filter for formaldehyde processing comprises a bottom frame, an outer shell, an air outlet pipe, a top cover, an air inlet pipe and a filter element, and also comprises a first brush, a second brush and a driving mechanism, wherein the second brush is fixedly connected to the top cover, and the first brush and the second brush are respectively in contact with the inner and outer surfaces of the filter element, and the driving mechanism is used to drive the first brush to rotate and can drive the filter element to rotate in the opposite direction at the same time, so that the first brush can brush and clean the outer surface of the filter element, and the second brush is fixed and can brush and clean the inner surface of the filter element rotating in the opposite direction.

[0007] Preferably, the driving mechanism includes a driving motor, a first gear and an outer gear ring, the driving motor is connected to the top cover, the first gear is connected to the output shaft of the driving motor, the outer gear ring is rotatably connected to the top cover, the first gear is meshed with the outer gear ring, and the first brush is fixedly connected to the outer gear ring, so that the driving motor can drive the first brush to rotate through the meshing of the first gear and the outer gear ring.

[0008] Preferably, the driving mechanism further includes a transmission gear and an inner gear ring, the transmission gear is rotatably connected to the top cover, the inner gear ring is connected to the top of the filter element, and the transmission gear is meshed with the outer gear ring and the inner gear ring at the same time.

[0009] Preferably, it also includes a nozzle, a water inlet valve and a connecting pipe, wherein the nozzle is slidably connected between the bottom frame and the top cover, the water inlet valve is installed on the side of the outer shell, and the connecting pipe connects the nozzle and the water inlet valve, so that the water inlet valve can transport water to the nozzle through the connecting pipe for spraying to flush the inside of the outer shell.

[0010] Preferably, the connecting pipe is a bellows, so that the bellows can be adaptively expanded and contracted as the nozzle moves left and right.

[0011] Preferably, an adjusting screw is further included, wherein the adjusting screw is threadedly connected to the housing, and the end of the adjusting screw is rotatably connected to the nozzle, so that the rotation of the adjusting screw can drive the nozzle to move left and right to adjust the distance between the nozzle and the filter element.

[0012] Preferably, a through hole is provided in the middle of the top of the bottom frame for waste water to enter.

[0013] Preferably, a drain valve is further included, and the drain valve for discharging waste water is installed on the bottom frame.

[0014] Preferably, it also includes a scraper, a guide rod and a lifting assembly, the two guide rods are fixedly connected to the bottom frame, the scraper is slidably connected to the guide rods, and the scraper is in contact with the inner wall of the outer shell, and the lifting assembly is used to drive the scraper to rise and fall along the guide rods to scrape off the wastewater adhering to the inner wall of the outer shell.

[0015] Preferably, the lifting assembly includes a second gear and a reciprocating screw, both of the reciprocating screws are rotatably connected to the bottom frame, and one of the reciprocating screws is fixedly connected to the first gear, the second gear is connected to the other reciprocating screw, the second gear is meshed with the outer gear ring, and the scraper is threadedly connected to the reciprocating screw, so that the rotation of the reciprocating screw can drive the scraper to lift and lower.

[0016] The beneficial effects of the utility model are:

[0017] 1. The utility model uses a driving motor as a driving force to drive the first brush to rotate and drive the filter element to rotate in the opposite direction. At this time, the first brush and the second brush can clean the inner and outer surfaces of the filter element at the same time, thereby preventing the filter holes of the filter element from being clogged by impurities, ensuring the filtering effect of the filter element, and there is no need to shut down the formaldehyde production line, which can improve the production efficiency of formaldehyde.

[0018] 2. The utility model can spray water inside the shell through the nozzle, so that the inside of the shell can be automatically cleaned as a whole without manual operation, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0020] Figure 2 It is a cross-sectional view of the outer shell and the top cover of the utility model.

[0021] Figure 3 It is a schematic diagram of the transmission relationship among the outer gear ring, the transmission gear and the inner gear ring of the utility model.

[0022] Figure 4 This is a schematic diagram of the installation of the first brush and the second brush of the utility model.

[0023] Figure 5 The utility model is a schematic diagram of the installation of the nozzle, water inlet valve and bellows.

[0024] Figure 6 It is a schematic diagram of the installation of the second gear, reciprocating screw and scraper of the utility model.

[0025] Markings in the accompanying drawings: 1: bottom frame, 101: drain valve, 2: outer shell, 201: air outlet pipe, 3: top cover, 301: air inlet pipe, 5: filter element, 6: drive motor, 7: first gear, 8: outer gear ring, 91: first brush, 92: second brush, 10: transmission gear, 11: inner gear ring, 12: nozzle, 13: water inlet valve, 14: bellows, 15: adjusting screw, 16: second gear, 17: reciprocating screw, 18: scraper, 19: guide rod. DETAILED DESCRIPTION

[0026] The embodiments of the present invention will be described below with reference to the accompanying drawings.

[0027] Embodiment: A formaldehyde processing anti-blocking filter, such as Figure 1-Figure 4As shown, it includes a bottom frame 1, a shell 2, an air outlet pipe 201, a top cover 3, an air inlet pipe 301, a filter element 5, a drive motor 6, a first gear 7, an outer gear ring 8, a first brush 91, a second brush 92, a transmission gear 10 and an inner gear ring 11, the bottom frame 1 is connected to the bottom of the shell 2, a through hole is opened in the middle of the top of the bottom frame 1, the air outlet pipe 201 is arranged in the middle of the front side of the shell 2, the top of the shell 2 is connected to the top cover 3, the air inlet pipe 301 is arranged in the middle of the top of the top cover 3, the filter element 5 is rotatably connected to the top of the bottom frame 1, the drive motor 6 is connected to the left front side of the top of the top cover 3, the output shaft of the drive motor 6 is connected to the first gear 7, and the The outer gear ring 8 is rotatably connected to the top cover 3, the first gear 7 is meshed with the outer gear ring 8, the first brush 91 is connected to the bottom of the outer gear ring 8, and the surface of the first brush 91 can contact the surface of the filter element 5; the second brush 92 is connected to the bottom of the top cover 3, the transmission gear 10 is rotatably connected inside the top cover 3, the inner gear ring 11 is connected to the top of the filter element 5, and the transmission gear 10 is meshed with the outer gear ring 8 and the inner gear ring 11 at the same time. The space formed by the bottom frame 1, the inner wall of the filter element 5 and the top cover 3 is called the internal space, and the space formed by the bottom frame 1, the outer wall of the filter element 5, the top cover 3 and the outer shell 2 is called the external space.

[0028] First, the anti-blocking filter is installed at a designated position so that the mixed gas for producing formaldehyde can enter the internal space through the intake pipe 301, and then the mixed gas can flow to the external space through the filter element 5, and the filter element 5 can filter impurities in the mixed gas; when the filter element 5 needs to be cleaned, the first gear 7 can be driven to rotate by the drive motor 6, and the first gear 7 drives the outer gear ring 8 to rotate, and the first brush 91 rotates in the same direction as the outer gear ring 8. At the same time, the first gear 7 drives the inner gear ring 11 to rotate in the opposite direction by meshing with the transmission gear 10 and the inner gear ring 11, and the inner gear ring 11 can drive the filter element 5 to rotate in the opposite direction. At this time, the first brush 91 and the second brush 92 can simultaneously clean the inner and outer surfaces of the filter element 5, thereby preventing the filter holes of the filter element 5 from being clogged with impurities and ensuring the filtering effect of the filter element 5.

[0029] like Figure 5As shown, it also includes a nozzle 12, a water inlet valve 13 and a bellows 14. The nozzle 12 is slidably connected between the upper left side of the bottom frame 1 and the lower left side of the top cover 3. The water inlet valve 13 is connected to the upper left side of the shell 2. One end of the bellows 14 is connected to the water inlet valve 13, and the other end of the bellows 14 is connected to the nozzle 12. When the formaldehyde production line is under maintenance, the water inlet valve 13 can be connected to an external water source, and water can be transported to the nozzle 12 through the water inlet valve 13 and the bellows 14, so that the nozzle 12 can spray water on the inside of the shell 2, thereby being able to clean the inside of the shell 2 as a whole.

[0030] like Figure 5 As shown, an adjusting screw 15 is also included. The adjusting screw 15 is threadedly connected to the middle part of the left side of the shell 2, and the right end of the adjusting screw 15 is rotatably connected to the left side of the nozzle 12. When the nozzle 12 is spraying water, the adjusting screw 15 can be rotated forward and backward so that the adjusting screw 15 can move left and right on the shell 2, thereby driving the nozzle 12 to move left and right to adjust the distance between it and the filter element 5, and then the cleaning effect of the nozzle 12 spraying water on the filter element 5 can be adjusted.

[0031] like Figure 1 and Figure 4 As shown, a drain valve 101 is also included, and the drain valve 101 is connected to the middle of the front side of the bottom frame 1; when the nozzle 12 sprays water to clean the interior of the shell 2 as a whole, the waste water can fall into the bottom frame 1 through the filter element 5 and the through hole, and the waste water in the bottom frame 1 can be discharged uniformly through the drain valve 101 for treatment.

[0032] like Figure 6As shown, it also includes a second gear 16, a reciprocating screw 17, a scraper 18 and a guide rod 19. The reciprocating screw 17 is rotatably connected to the left front side and the right rear side of the top of the bottom frame 1. The upper end of the reciprocating screw 17 located on the left front side is fixedly connected to the first gear 7, and the upper end of the reciprocating screw 17 located on the right rear side is connected to the second gear 16. The second gear 16 is meshed with the outer gear ring 8. The guide rod 19 is connected to the right front side and the left rear side of the top of the bottom frame 1. The scraper 18 is slidably connected between the two guide rods 19, and the scraper 18 is threadedly connected to the reciprocating screw 17; when the When the driving motor 6 drives the first gear 7 to rotate, the first gear 7 can drive the reciprocating screw 17 on the left front side to rotate, and at the same time, the first gear 7 drives the outer ring gear 8 to rotate, and the outer ring gear 8 can drive the second gear 16 to rotate, and the second gear 16 can drive the reciprocating screw 17 on the right rear side to rotate. The rotation of the two reciprocating screws 17 can drive the scraper 18 to reciprocate up and down. After the nozzle 12 sprays water to clean the interior of the outer shell 2 as a whole, the scraper 18 can scrape off the waste water adhering to the inner wall of the outer shell 2, so that the waste water can pass through the filter element 5 and fall into the bottom frame 1.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A formaldehyde processing anti-blocking filter, comprising a bottom frame (1), a housing (2), an air outlet pipe (201), a top cover (3), an air inlet pipe (301) and a filter element (5), characterized in that: The invention also comprises a first brush (91), a second brush (92) and a driving mechanism, wherein the second brush (92) is fixedly connected to the top cover (3), and the first brush (91) and the second brush (92) are respectively in contact with the inner and outer surfaces of the filter element (5), and the driving mechanism is used to drive the first brush (91) to rotate and can drive the filter element (5) to rotate in the opposite direction at the same time, so that the first brush (91) can brush and clean the outer surface of the filter element (5), and the second brush (92) is fixed and can brush and clean the inner surface of the filter element (5) rotating in the opposite direction.

2. The anti-blocking filter for formaldehyde processing according to claim 1, characterized in that: The driving mechanism comprises a driving motor (6), a first gear (7) and an outer gear ring (8); the driving motor (6) is connected to the top cover (3); the first gear (7) is connected to the output shaft of the driving motor (6); the outer gear ring (8) is rotatably connected to the top cover (3); the first gear (7) is meshed with the outer gear ring (8); and the first brush (91) is fixedly connected to the outer gear ring (8), so that the driving motor (6) can drive the first brush (91) to rotate through the meshing of the first gear (7) and the outer gear ring (8).

3. The anti-blocking filter for formaldehyde processing according to claim 2, characterized in that: The driving mechanism further comprises a transmission gear (10) and an inner gear ring (11); the transmission gear (10) is rotatably connected to the top cover (3); the top of the filter element (5) is connected to the inner gear ring (11); and the transmission gear (10) is meshed with the outer gear ring (8) and the inner gear ring (11) at the same time.

4. The anti-blocking filter for formaldehyde processing according to claim 1, characterized in that: It also includes a spray head (12), a water inlet valve (13) and a connecting pipe, wherein the spray head (12) is slidably connected between the bottom frame (1) and the top cover (3), the water inlet valve (13) is installed on the side of the shell (2), and the connecting pipe connects the spray head (12) and the water inlet valve (13), so that the water inlet valve (13) can transport water to the spray head (12) through the connecting pipe for spraying, so as to flush the inside of the shell (2).

5. The anti-blocking filter for formaldehyde processing according to claim 4, characterized in that: The connecting pipe is a bellows (14), so that the bellows (14) can adaptively expand and contract as the spray head (12) moves left and right.

6. The anti-blocking filter for formaldehyde processing according to claim 4, characterized in that: It also includes an adjusting screw (15), the adjusting screw (15) being threadedly connected to the housing (2), and the end of the adjusting screw (15) being rotatably connected to the nozzle (12), so that the rotation of the adjusting screw (15) can drive the nozzle (12) to move left and right to adjust the distance between the nozzle and the filter element (5).

7. The anti-blocking filter for formaldehyde processing according to claim 1, characterized in that: A through hole is provided in the middle of the top of the bottom frame (1) for waste water to enter.

8. The anti-clogging filter for formaldehyde processing according to claim 1, characterized in that: It also includes a drain valve (101), and the drain valve (101) for draining waste water is installed on the bottom frame (1).

9. The anti-blocking filter for formaldehyde processing according to claim 2, characterized in that: It also includes a scraper (18), a guide rod (19) and a lifting assembly, wherein the two guide rods (19) are fixedly connected to the bottom frame (1), the scraper (18) is slidably connected to the guide rods (19), and the scraper (18) is in contact with the inner wall of the outer shell (2), and the lifting assembly is used to drive the scraper (18) to move up and down along the guide rods (19) to scrape off the waste water adhering to the inner wall of the outer shell (2).

10. The anti-blocking filter for formaldehyde processing according to claim 9, characterized in that: The lifting assembly comprises a second gear (16) and a reciprocating screw (17), the two reciprocating screws (17) are both rotatably connected to the bottom frame (1), and one of the reciprocating screws (17) is fixedly connected to the first gear (7), the second gear (16) is connected to the other reciprocating screw (17), the second gear (16) is meshed with the outer gear ring (8), and the scraper (18) is threadedly connected to the reciprocating screw (17), so that the rotation of the reciprocating screw (17) can drive the scraper (18) to be lifted or lowered.

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