Methanol filter

Abstract

The utility model relates to the technical field of filters, and discloses a methanol filter which comprises a barrel with a filter cavity inside, a detachable sealing cover is mounted at the top end of the barrel, one side of the barrel is connected with a water adding valve and a methanol adding valve, and a filter part for filtering methanol is arranged in the filter cavity; a cleaning mechanism for performing back-blowing cleaning on the filtering piece is further arranged on the barrel body, and the cleaning mechanism comprises an air distribution assembly arranged in the barrel body and an air blowing assembly fixed on one side of the barrel body; through the arrangement of the cleaning mechanism, the filter element can be reversely washed through the air distribution ring and the first air blowing pipe, meanwhile, cleaning liquid is blown through the second air blowing pipe and the air blowing nozzle so as to wash the outer wall of the filter element, and therefore efficient cleaning of the filter element is achieved, the structure is simple, the possibility of impurity residues is reduced, and the service life of the filter element is prolonged. The cleaning effect of the filter element is improved, and efficient filtration of a methanol solution is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a methanol filter. Background Art

[0002] In the formaldehyde production process, catalytic oxidation is commonly used in industry to produce formaldehyde from methanol. When producing formaldehyde from methanol, the methanol solution is generally required to be filtered through a filter to remove impurities in the methanol solution to improve the quality of the formaldehyde product and facilitate further processing and use of the formaldehyde product.

[0003] In the Chinese patent with the announcement number CN217661865U, a new type of methanol filter is disclosed. When the filter element needs to be cleaned, the cleaning liquid is sent into the interior of the cylinder through the cleaning pipe. When the cleaning liquid overflows the filter element, the external gas transmission equipment introduces gas into the blowing pipe. The gas drives the cleaning liquid to bubble and stir, and the huge turbulence generated flushes the filter element, so that the filter element can be preliminarily cleaned. At the same time, the cleaning motor is started to rotate forward and reverse. Since the worm wheel is meshed with the worm, the rotating tube will rotate. Since the ring gear is meshed with the transmission gear, the rotating tube will drive the left and right side screws to rotate in the same direction. When the screw rotates forward and reverse, it will drive the cleaning ring plate to move up and down, so that the filter element can be further cleaned.

[0004] Although the above-mentioned filter can clean the filter element through the screw rod and the cleaning ring plate, during actual use, impurities may still remain on the screw rod and the cleaning ring plate, causing the impurities remaining when the filter element is cleaned to adhere to the filter element again, resulting in poor cleaning effect of the filter element, which is not conducive to efficient filtration of methanol solution. Utility Model Content

[0005] The utility model provides a methanol filter to solve the problem that the existing filter has a poor cleaning effect on the filter element and is not conducive to efficient filtering of the methanol solution.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a methanol filter, comprising a cylinder with a filter cavity inside, a detachable sealing cover is installed on the top of the cylinder, and a water adding valve and an alcohol adding valve are connected to one side of the cylinder, a filter element for filtering methanol is arranged in the filter cavity, a discharge pipe is connected to the top of the sealing cover, and a waste discharge valve is connected to the bottom of the cylinder;

[0007] The cylinder is also provided with a cleaning mechanism for back-blowing and cleaning the filter element, and the cleaning mechanism includes an air distribution assembly arranged inside the cylinder, and a blowing assembly fixed on one side of the cylinder, the air distribution assembly includes an air distribution ring and a second blowing pipe respectively located at the top and bottom of the filter element, a plurality of first blowing pipes are connected to the bottom of the air distribution ring, and a plurality of blowing nozzles are connected to the bottom end of the second blowing pipe.

[0008] Preferably, the blowing assembly includes a box body, a fan is installed inside the box body, and an air inlet hole is opened on a side of the box body relative to the cylinder body, a first air supply pipe is connected between the top of the box body and the air distribution ring, and a second air supply pipe is connected between one side of the box body and the second blowing pipe, and a one-way valve is installed on the first air supply pipe and the second air supply pipe. Through the setting of the one-way valve, the cleaning liquid can be prevented from being sucked into the first blowing pipe and the second blowing pipe to cause backflow, so as to facilitate normal blowing of the first blowing pipe and the second blowing pipe.

[0009] Preferably, the filter element includes a partition plate installed at the top of the cylinder, and a plurality of filter elements are connected to the bottom of the partition plate. The bottom ends of the plurality of first blowing pipes are respectively inserted into the interiors of the plurality of filter elements. The partition plate can divide the interior of the cylinder into a filter chamber and a liquid storage chamber, and the liquid storage chamber is located above the partition plate.

[0010] Preferably, a dustproof component is also provided on the box body, and the dustproof component includes a slot opened on the top of the box body, a filter plate is inserted in the slot, and a cover plate for sealing the slot is installed on the top of the filter plate. The filter plate is located on the air inlet side of the fan and can filter the air to achieve the purpose of dust prevention and prevent dust from entering the methanol solution.

[0011] Preferably, plug-in plates are installed on both sides of the filter plate, and plug-in grooves connected to the notches are opened on both sides of the inner wall of the box body. The plug-in plates are plugged and fixed to the plug-in grooves, which can realize rapid disassembly and assembly of the filter plate and facilitate cleaning of the filter plate.

[0012] Preferably, the plug board is L-shaped, and a limit strip is installed on the inner wall of the plug board, and a limit slot matching the limit strip is opened on one side of the inner wall of the plug slot, which can slide and limit the plug board to facilitate stable plugging and unplugging of the filter plate.

[0013] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0014] (1) Through the setting of the cleaning mechanism, when cleaning the filter element, the filter element can be reversely flushed by using the air distribution ring and the first blowing pipe, and the cleaning liquid is agitated by the second blowing pipe and the blowing nozzle to flush the outer wall of the filter element, thereby achieving efficient cleaning of the filter element. The structure is simple, and the possibility of impurity residue is reduced. The problem that when the existing filtering device cleans the filter element through the screw rod and the cleaning ring plate, impurities may still remain on the screw rod and the cleaning ring plate, causing the impurities remaining when the filter element is cleaned to adhere to the filter element again is solved, thereby greatly improving the cleaning effect of the filter element, which is conducive to the efficient filtration of the methanol solution;

[0015] (2) Through the setting of the dust-proof component, when the blowing component blows air into the air distribution component, the air can be filtered to remove dust mixed in the air and prevent the dust from being blown into the cylinder along with the air, which is beneficial to ensure the purity of methanol and improve the quality of formaldehyde prepared from methanol; and through the plug-in plate and the plug-in slot, the filter plate can be quickly disassembled and assembled, and the filter plate can be quickly cleaned, which is beneficial to ensure the filtering effect of the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a cross-sectional view of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the air distribution component of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the dustproof component of the utility model;

[0021] Figure 5 It is a partial cross-sectional view of the utility model when the air distribution component and the air blowing component are connected;

[0022] Figure 6 For this utility model Figure 3 A in the enlarged view;

[0023] Figure 7 For this utility model Figure 4 The enlarged view of point B in the figure;

[0024] In the figure: 1. Cylinder; 2. Water adding valve; 3. Alcohol adding valve; 4. Waste discharge valve; 5. Sealing cover; 6. Discharge pipe; 7. Blowing assembly; 71. Box; 72. Fan; 8. Dust-proof assembly; 81. Cover plate; 82. Filter plate; 83. Plug-in plate; 84. Limiting strip; 9. First air supply pipe; 10. Partition plate; 11. Filter element; 12. Air distribution assembly; 121. Air distribution ring; 122. First blowing pipe; 123. Second blowing pipe; 124. Blowing nozzle; 13. Second air supply pipe. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The utility model provides Figure 1-Figure 7 A methanol filter is shown, comprising a cylinder 1 with a filter cavity inside, a detachable sealing cover 5 is installed on the top of the cylinder 1, and a water adding valve 2 and an alcohol adding valve 3 are connected to one side of the cylinder 1, a filter element for filtering methanol is arranged in the filter cavity, a discharge pipe 6 is connected to the top of the sealing cover 5, and a waste discharge valve 4 is connected to the bottom of the cylinder 1;

[0027] The cylinder 1 is also provided with a cleaning mechanism for back-blowing and cleaning the filter element, and the cleaning mechanism includes an air distribution assembly 12 arranged inside the cylinder 1, and a blowing assembly 7 fixed on one side of the cylinder 1. The air distribution assembly 12 includes an air distribution ring 121 and a second blowing pipe 123 respectively located at the top and bottom of the filter element. A plurality of first blowing pipes 122 are connected to the bottom of the air distribution ring 121, and a plurality of blowing nozzles 124 are connected to the bottom end of the second blowing pipe 123. The first blowing pipe 122 has dense air outlet holes.

[0028] Specifically, Figure 1-Figure 5 As shown, the blowing assembly 7 includes a box body 71, a fan 72 is installed inside the box body 71, and an air inlet hole is opened on the side of the box body 71 relative to the cylinder body 1, a first air supply pipe 9 is connected between the top of the box body 71 and the air distribution ring 121, and a second air supply pipe 13 is connected between one side of the box body 71 and the second blowing pipe 123, and both the first air supply pipe 9 and the second air supply pipe 13 are installed with a one-way valve.

[0029] Specifically, Figure 2 As shown, the filter element includes a partition plate 10 installed at the top end of the cylinder 1, and a plurality of filter elements 11 are connected to the bottom of the partition plate 10. The bottom ends of a plurality of first blowing pipes 122 are respectively inserted into the interior of the plurality of filter elements 11. The partition plate 10 can separate the interior of the cylinder 1 into a filter chamber and a liquid storage chamber, and the liquid storage chamber is located above the partition plate 10.

[0030] When in use, the methanol solution can be added into the filter chamber in the cylinder 1 through the alcohol adding valve 3, and then the methanol solution is filtered through multiple filter elements 11 and flows into the liquid storage chamber, and then discharged through the discharge pipe 6, thereby achieving the filtration of the methanol solution;

[0031] When the filter element 11 needs to be cleaned, cleaning liquid can be added to the cylinder 1 through the water adding valve 2, and then the external air is sucked in through the air inlet on one side of the box body 71 through the fan 72, and the air is blown into the air distribution ring 121 and the second blowing pipe 123 respectively through the first air supply pipe 9 and the second air supply pipe 13, and then the air distribution ring 121 diverts the wind into multiple first blowing pipes 122 and discharges it, so as to blow the filter element 11 from the inside out, so that the impurities remaining on the outer wall of the filter element 11 fall down, and the filter element 11 is reversely washed. At the same time, the second blowing pipe 123 blows air to the bottom of the cylinder 1 through the blowing nozzle 124 at its bottom, so that the cleaning liquid at the bottom of the cylinder 1 is bubbled to flush the outer wall of the filter element 11, thereby achieving efficient cleaning of the filter element 11 and preventing the filter element 11 from being blocked, which is conducive to efficient filtration of the methanol solution.

[0032] In addition, in one embodiment, if Figure 1-Figure 5 As shown, a dustproof component 8 is also provided on the box body 71, and the dustproof component 8 includes a slot opened on the top of the box body 71, a filter plate 82 is inserted in the slot, and a cover plate 81 for sealing the slot is installed on the top of the filter plate 82, and the filter plate 82 is located on the air inlet side of the fan 72.

[0033] When the fan 72 draws external air into the box body 71 through the air inlet, the filter plate 82 can filter the air to remove dust mixed in the air. After filtering, the air is respectively input into the air distribution ring 121 and the second air blowing pipe 123 through the first air supply pipe 9 and the second air supply pipe 13 under the action of the fan 72, thereby preventing dust from being blown into the cylinder body 1 along with the air, which is beneficial to ensuring the purity of methanol and improving the quality of methanol in preparing formaldehyde.

[0034] Furthermore, if Figure 3-Figure 5 As shown, plug-in plates 83 are installed on both sides of the filter plate 82, and plug-in slots connected to the notches are opened on both sides of the inner wall of the box body 71. The plug-in plates 83 are plugged and fixed to the plug-in slots, and a handle is also installed on the cover plate 81.

[0035] When the filter plate 82 needs to be cleaned, the cover plate 81 can be pulled upward by the handle so that the cover plate 81 drives the filter plate 82 to move upward from the box body 71. At this time, the plug-in plate 83 is synchronously moved out along the plug-in slot until the filter plate 82 is moved out of the slot on the box body 71, thereby realizing the disassembly of the filter plate 82, and then the filter plate 82 is cleaned. After cleaning, the filter plate 82 can be inserted into the box body 71 through the slot through the cooperation of the plug-in plate 83 and the plug-in slot to realize the installation of the filter plate 82, thereby facilitating the rapid disassembly and assembly of the filter plate 82, realizing the rapid cleaning of the filter plate 82, and being conducive to ensuring the filtering effect of the filter plate 82.

[0036] Furthermore, if Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, the plug board 83 is L-shaped, and a limit strip 84 is installed on the inner wall of the plug board 83, and a limit slot that matches the limit strip 84 is opened on one side of the inner wall of the plug slot.

[0037] When the plug-in board 83 moves along the plug-in slot, the limiting strip 84 can slide along the limiting slot to limit the plug-in board 83 and the plug-in slot, which is beneficial to the stable plug-in and pull-out of the plug-in board 83 and convenient for the quick disassembly and assembly of the filter plate 82.

[0038] 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 methanol filter, comprising a cylinder (1) having a filter cavity therein, characterized in that: A detachable sealing cover (5) is installed at the top end of the cylinder (1), and a water adding valve (2) and an alcohol adding valve (3) are connected to one side of the cylinder (1). A filter element for filtering methanol is arranged in the filter cavity, a discharge pipe (6) is connected to the top end of the sealing cover (5), and a waste discharge valve (4) is connected to the bottom end of the cylinder (1); The cylinder (1) is also provided with a cleaning mechanism for back-blowing and cleaning the filter element, and the cleaning mechanism comprises an air distribution component (12) arranged inside the cylinder (1), and a blowing component (7) fixed to one side of the cylinder (1), the air distribution component (12) comprising an air distribution ring (121) and a second blowing pipe (123) respectively located at the top and bottom of the filter element, the bottom of the air distribution ring (121) is connected to a plurality of first blowing pipes (122), and the bottom end of the second blowing pipe (123) is connected to a plurality of blowing nozzles (124).

2. A methanol filter according to claim 1, characterized in that: The blowing assembly (7) comprises a box body (71), a fan (72) is installed inside the box body (71), and an air inlet hole is opened on a side of the box body (71) relative to the cylinder body (1), a first air supply pipe (9) is connected between the top of the box body (71) and the air distribution ring (121), and a second air supply pipe (13) is connected between one side of the box body (71) and the second blowing pipe (123), and both the first air supply pipe (9) and the second air supply pipe (13) are installed with a one-way valve.

3. A methanol filter according to claim 1, characterized in that: The filter element comprises a partition plate (10) installed at the top end of the cylinder (1), a plurality of filter elements (11) are connected to the bottom of the partition plate (10), and the bottom ends of the plurality of first blowing pipes (122) are respectively inserted into the interior of the plurality of filter elements (11).

4. A methanol filter according to claim 2, characterized in that: The box body (71) is also provided with a dustproof component (8), and the dustproof component (8) comprises a notch opened on the top of the box body (71), a filter plate (82) is inserted into the notch, and a cover plate (81) for sealing the notch is installed at the top of the filter plate (82), and the filter plate (82) is located on the air inlet side of the fan (72).

5. A methanol filter according to claim 4, characterized in that: Plug-in plates (83) are installed on both sides of the filter plate (82), and plug-in slots communicating with the notches are opened on both sides of the inner wall of the box body (71), and the plug-in plates (83) are plugged and fixed to the plug-in slots.

6. A methanol filter according to claim 5, characterized in that: The plug board (83) is L-shaped, and a limit strip (84) is installed on the inner wall of the plug board (83), and a limit slot matching with the limit strip (84) is opened on one side of the inner wall of the plug slot.

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