Filtering device for carbon monoxide gas purification

Abstract

The utility model relates to the technical field of filtering devices, and provides a filtering device for purifying carbon monoxide gas, which is characterized in that a shell is provided with a gas inlet and a gas outlet, a supporting mesh basket is detachably arranged in the shell, and a filtering cloth bag is sleeved outside the supporting mesh basket; the cleaning assembly comprises a mounting frame, a lifting block, an air nozzle and a knocking head, a mounting opening is formed in the top of the shell, the mounting frame is detachably arranged in the mounting opening, the lifting block is slidably arranged on the mounting frame in the vertical direction and located in the supporting net basket, the air nozzle is arranged on the lifting block, annular air spraying holes are formed in the periphery of the air nozzle, and the air nozzle is used for being communicated with an external air supply element; the lifting block is arranged on the support net basket to blow a wet film layer on the surface of the filter cloth bag outwards in the radial direction and dry and cake the wet film layer, and the knocking head is arranged on the lifting block in a sliding mode in the radial direction and used for knocking the inner wall of the support net basket to shake off dry cakes on the surface of the filter cloth bag. By means of the technical scheme, the technical problem that in the prior art, after filtering equipment works for a long time, accumulated wet film layers are not easy to clean is solved.

Description

Technical Field

[0001] The embodiments of this utility model relate to the field of filtration device technology, specifically to a filtration device for purifying carbon monoxide gas. Background Technology

[0002] In today's rapidly developing technological landscape, numerous high-tech industries, such as semiconductors, integrated circuit manufacturing, and organometallic sources, have achieved remarkable success. Carbon monoxide, as an indispensable basic gas in many high-tech industries, directly affects the performance and quality of the products it produces.

[0003] Formic acid pyrolysis for the production of ultra-high-purity carbon monoxide is a purification method that utilizes a photothermal coupling system to achieve highly efficient catalytic pyrolysis of formic acid, producing high-purity carbon monoxide. This method is characterized by low cost and high environmental friendliness. However, at the end of the formic acid pyrolysis process, some moisture remains in the carbon monoxide gas. Before the final product is completed, the carbon monoxide gas needs to be filtered to remove this residual moisture, thereby improving the purity of the final product. Traditional carbon monoxide filtration equipment, after prolonged operation, accumulates a wet film layer on its internal filter components, affecting filtration efficiency and equipment lifespan. Therefore, disassembly and maintenance are necessary, but cleaning is tedious, difficult, and time-consuming.

[0004] Therefore, developing a clean, simple filtration device for purifying carbon monoxide gas that can maintain stable filtration performance over a long period of time is of great practical significance. Utility Model Content

[0005] To overcome the above-mentioned defects, embodiments of this utility model provide a filtration device for purifying carbon monoxide gas, which solves the technical problem in related technologies that the filtration equipment accumulates a wet membrane layer after long-term operation and is difficult to clean.

[0006] According to one aspect, at least one embodiment of the present invention provides a filtration device for purifying carbon monoxide gas, comprising a housing, a support basket, a filter bag, and a cleaning assembly. The housing has an air inlet and an air outlet. The support basket is detachably disposed inside the housing, and the filter bag is sleeved outside the support basket.

[0007] The cleaning assembly includes a mounting bracket, a lifting block, an air nozzle, and a striking head. The top of the housing has a mounting opening, and the mounting bracket is detachably disposed within the mounting opening. The lifting block is vertically slidably disposed on the mounting bracket and located within the support basket. The air nozzle is disposed on the lifting block and has annular air holes on its outer periphery. The air nozzle is used to communicate with an external air supply element to spray the wet film layer on the surface of the filter bag radially outward and dry and agglomerate it. The striking head is radially slidably disposed on the lifting block and is used to strike the inner wall of the support basket to shake off the dried agglomerates on the surface of the filter bag.

[0008] For example, in at least one embodiment of the present invention, a filtration device for purifying carbon monoxide gas further includes:

[0009] The cleaning assembly also includes a drive motor and a lead screw. The drive motor is located at the top of the mounting frame, and the lead screw is rotatably located at the bottom of the mounting frame and is driven to rotate by the drive motor. The lead screw is arranged along the axial direction of the support basket, and the lifting block is threaded onto the lead screw.

[0010] For example, in at least one embodiment of the present invention, a filtration device for purifying carbon monoxide gas further includes:

[0011] The mounting frame is provided with a guide rod along its vertical direction, and the lifting block is provided with a guide buckle. The guide buckle engages with the guide rod and slides along the guide rod to guide the sliding of the lifting block.

[0012] For example, in at least one embodiment of the present invention, a filtration device for purifying carbon monoxide gas further includes:

[0013] A spring is provided between the striking head and the lifting block. The two ends of the spring act on the striking head and the lifting block respectively to provide force for the striking head to approach the inner wall of the supporting basket. The striking head has an actuating part, and multiple actuating protrusions are provided vertically on the guide rod. The actuating part of the striking head can contact the multiple actuating protrusions in sequence under the drive of the lifting block, so that the striking head continuously strikes the inner wall of the supporting basket.

[0014] For example, in at least one embodiment of the present invention, a filtration device for purifying carbon monoxide gas further includes:

[0015] The striking head is rotatably equipped with a rubber roller, which is used to contact the inner wall of the support basket.

[0016] For example, in at least one embodiment of the present invention, a filtration device for purifying carbon monoxide gas further includes:

[0017] The cleaning assembly also includes an air supply hose, one end of which is connected to the air nozzle, and the other end is used to connect to an external air supply element.

[0018] For example, in at least one embodiment of the present invention, a filtration device for purifying carbon monoxide gas further includes:

[0019] The bottom of the lifting block is provided with an expansion plate, which can squeeze the inner wall of the support basket under the action of the lifting block, so that the support basket, which deforms inward, expands outward and returns to its original shape.

[0020] For example, in at least one embodiment of the present invention, a filtration device for purifying carbon monoxide gas further includes:

[0021] The outer expansion plate is arc-shaped.

[0022] For example, in at least one embodiment of the present invention, a filtration device for purifying carbon monoxide gas further includes:

[0023] The bottom of the housing has a drain port, and a detachable sludge collection box is installed inside the drain port. The sludge collection box is used to collect the clumps that fall off the filter bag.

[0024] For example, in at least one embodiment of the present invention, a filtration device for purifying carbon monoxide gas further includes:

[0025] A cover plate is hinged to the top of the housing, and the cover plate is used to block the mounting opening when the mounting bracket is not installed in the mounting opening.

[0026] The beneficial effects of the embodiments of this utility model are as follows:

[0027] In this invention, carbon monoxide gas enters the housing through the inlet and contacts the filter bag fitted outside the support basket. Moisture is trapped on the surface of the filter bag, while the filtered gas passes through the filter bag into its internal space and is then discharged from the outlet, completing the filtration process. The support basket provides support for the filter bag during the filtration process, preventing the filter bag from collapsing and deforming due to the negative pressure generated by the suction of gas.

[0028] After prolonged operation of the filtration device, a certain amount of wet film layer accumulates on the surface of the filter bags, causing "bag clogging." Cleaning is required. First, open the component that originally sealed the installation opening and install the mounting bracket into the opening. Then, move the lifting block vertically up and down within the support basket on the mounting bracket. During this lifting process, the air nozzle connected to the external air supply element activates, and high-pressure gas is ejected radially outward from the air nozzle, directly acting on the surface of the filter bags to accelerate the drying and clumping of the accumulated wet film layer. Simultaneously, as the lifting block moves up and down, the striking head continuously strikes the inner wall of the support basket radially. Because the filter bags are tightly fitted inside the support basket, the vibration of the support basket is transmitted to the filter bags, causing them to vibrate synchronously, further dislodging the clumps adhering to their surface. Through the combined action of air jetting and striking vibration, the wet film layer on the surface of the filter bags can be removed more comprehensively and thoroughly, restoring the filter bags to their optimal filtration performance.

[0029] By installing a cleaning component, filter bags can be cleaned without the need for complex disassembly of the filtration equipment. Simply open the installation port to install the cleaning component, and the wet film layer on the surface of the filter bag can be removed by simultaneous air jetting and tapping vibration, saving cleaning time and labor costs and improving cleaning efficiency. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0031] Figure 1 This is a schematic diagram of the external appearance of a filter device for purifying carbon monoxide gas in one embodiment of the present invention;

[0032] Figure 2 for Figure 1 A schematic diagram of the internal structure of a filter device for purifying carbon monoxide gas is shown in the embodiment.

[0033] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0034] Figure 4 for Figure 1 A schematic diagram of the structure supporting the basket in the embodiment;

[0035] Figure 5 for Figure 1 The embodiment is shown in the schematic diagram of the filter bag being fitted onto the support basket.

[0036] In the diagram: 1. Shell, 2. Support basket, 3. Filter bag, 4. Cleaning assembly, 101. Air inlet, 102. Air outlet, 401. Mounting bracket, 402. Lifting block, 403. Air nozzle, 404. Knob, 103. Mounting port, 405. Drive motor, 406. Lead screw, 407. Guide rod, 408. Guide buckle, 409. Spring, 410. Actuating part, 411. Actuating protrusion, 412. Rubber roller, 413. Air supply hose, 414. Outer expansion plate, 104. Drain outlet, 5. Sludge collection box, 6. Cover plate. Detailed Implementation

[0037] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0038] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0039] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0042] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0043] like Figures 1-5 As shown, this invention illustrates a carbon monoxide gas purification filtration device according to one embodiment of the present invention, comprising a housing 1, a supporting basket 2, a filter bag 3, and a cleaning assembly 4. The housing 1 forms the main structure of the entire filtration device, with an air inlet 101 and an air outlet 102 on its side wall. The mounting opening 103 of the housing 1 is located at the top, facilitating the detachable installation of the mounting bracket 401. The supporting basket 2 is detachably installed inside the housing 1, allowing for easy removal for maintenance or replacement when needed. The supporting basket 2 has a cylindrical basket-like structure, providing support for the filter bag 3 without excessively obstructing gas flow. The filter bag 3 is fitted over the supporting basket 2, fitting snugly against it.

[0044] The mounting bracket 401 can be installed in the mounting port 103 of the housing 1 by bolts or other detachable connection methods. The lifting block 402 is slidably mounted on the mounting bracket 401 along the vertical direction. The air nozzle 403 is mounted on the lifting block 402 and has annular air holes evenly distributed on its outer periphery, which can spray the wet membrane layer accumulated on the filter bag 3 radially outward to accelerate its drying and agglomeration. The air nozzle 403 is connected to the external air supply element. The tapping head 404 is slidably mounted on the lifting block 402 along the radial direction and can tap the inner wall of the supporting basket 2.

[0045] Working principle: Carbon monoxide gas enters the housing 1 through the inlet 101 and comes into contact with the filter bag 3, which is fitted over the support basket 2. Moisture is trapped on the surface of the filter bag 3, while the filtered gas passes through the filter bag 3 into its internal space and is then discharged from the outlet 102, completing the filtration process. The support basket 2 provides support for the filter bag 3 during the filtration process, preventing the filter bag 3 from collapsing and deforming due to the negative pressure generated by the suction of gas.

[0046] After the filtration device has been working for a long time, a certain amount of wet film layer accumulates on the surface of the filter bag 3, causing a "bag clogging" phenomenon. When cleaning is required, first open the part that originally blocked the installation port 103, install the mounting bracket 401 into the installation port 103, and then move the lifting block 402 vertically up and down in the support basket 2 on the mounting bracket 401. During the lifting process, the air nozzle 403, which is connected to the external air supply element, starts to work, and high-pressure gas is sprayed out radially from the air nozzle, directly acting on the surface of the filter bag 3 to accelerate the drying and clumping of the wet film layer accumulated on the surface of the filter bag 3. At the same time, as the lifting block 402 rises and falls, the striking head 404 continuously strikes the inner wall of the support basket 2 radially. Since the filter bag 3 is tightly fitted on the outside of the support basket 2, the vibration of the support basket 2 will be transmitted to the filter bag 3, causing the filter bag 3 to vibrate synchronously, further shaking off the clumps attached to its surface. By combining air jetting and tapping vibration, the wet film layer on the surface of the filter bag 3 can be removed more comprehensively and thoroughly, restoring the filter bag 3 to its good filtration performance.

[0047] By installing the cleaning component 4, the filter bag 3 can be cleaned without complicated disassembly of the filtration equipment. Simply open the installation port 103 to install the cleaning component 4, and the wet film layer on the surface of the filter bag 3 can be removed by simultaneous air jetting and tapping vibration, saving cleaning time and labor costs and improving cleaning efficiency.

[0048] In some examples, such as Figure 1 , 2 As shown in Figure 3, the drive motor 405 is mounted on the top of the mounting bracket 401, and the lead screw 406 is rotatably mounted on the bottom of the mounting bracket 401 and is driven by the drive motor 405. The lifting block 402 is threaded onto the lead screw 406. A guide rod 407 is vertically arranged on the mounting bracket 401, and a guide buckle 408 is provided on the lifting block 402. The guide buckle 408 engages with the guide rod 407 to prevent the lifting block 402 from rotating with the lead screw 406. A spring 409 is provided between the striking head 404 and the lifting block 402 to provide the striking head 404 with a continuous force close to the inner wall of the supporting basket 2. An actuating part 410 is provided on the striking head 404, and multiple actuating protrusions 411 are vertically arranged on the guide rod 407. A rubber roller 412 is rotatably mounted at the end of the striking head 404 to prevent hard impact from damaging the inner wall of the supporting basket 2. One end of the air supply hose 413 is tightly connected to the jet nozzle 403, and the other end is used to connect to an external air supply element. When the jet nozzle 403 descends, the air supply hose 413 can extend accordingly.

[0049] Working principle: When the filter bag 3 needs to be cleaned, the drive motor 405 drives the lead screw 406 to rotate, thereby realizing the lifting block 402's lifting and lowering within the support basket 2. During the process, the guide buckle 408 is always locked on the guide rod 407, restricting the lifting block 402's freedom in the horizontal direction and preventing the lifting block 402 from rotating with the lead screw 406.

[0050] During the lifting and lowering process of the lifting block 402, the actuating part 410 of the striking head 404 can sequentially contact multiple actuating protrusions 411. When the actuating part 410 contacts the actuating protrusion 411, it overcomes the elastic force of the spring 409, causing the striking head 404 to move away from the inner wall of the support basket 2, compressing the spring 409. When the actuating part 410 disengages from the actuating protrusion 411, the elastic force of the spring 409 causes the striking head 404 to rebound, thereby causing the striking head 404 to continuously strike the inner wall of the support basket 2. The vibration of the support basket 2 shakes off the dry clumps attached to the filter bag 3. The rubber roller 412 plays a role in buffering and enhancing the striking effect during the striking process, avoiding damage to the inner wall of the support basket 2.

[0051] An external air supply element provides high-pressure gas to the nozzle 403 via an air supply hose 413. The air supply hose 413 can extend or retract accordingly as the nozzle 403 rises and falls, ensuring that gas is supplied to the nozzle 403 during its movement. The blowing airflow and the striking action of the tapping head 404 work together, with the annular air jet holes on the outer periphery of the nozzle 403 ejecting gas radially outward, acting on the surface of the filter bag 3, thereby accelerating the drying and agglomeration of the wet membrane layer. Vibration is used to shake off the dried agglomerates, thereby improving cleaning efficiency.

[0052] In some examples, such as Figure 2 , 3 As shown, the outward expansion plate 414 is located at the bottom of the lifting block 402 and is designed to be arc-shaped. During the operation of the filtration device, due to the suction of gas, a negative pressure will be formed inside the filter bag 3, which may cause the support basket 2 to collapse and deform after long-term operation. When the cleaning component 4 is started, the lifting block 402 descends under the drive of the drive motor 405 and the lead screw 406. As the lifting block 402 descends, the arc-shaped outward expansion plate 414 at the bottom contacts the inner wall of the support basket 2. The outward expansion plate 414 will exert a downward squeezing force on the inner wall of the support basket 2 from the top, causing the support basket 2, which has already deformed inward, to gradually expand outward. As the lifting block 402 continues to descend, the outward expansion plate 414 squeezes downward along the inner wall of the support basket 2, so that the support basket 2 gradually returns to its original shape in the height direction. If the support basket 2 is not deformed, although the outward expansion plate 414 contacts the inner wall of the support basket 2 during the descent, it will not exert an additional squeezing force on it, but will only move with the lifting block 402.

[0053] In some examples, such as Figure 1 , 2 As shown, a drain port 104 is provided at the bottom of the housing 1. The drain port 104 is detachably connected to the sludge collection box 5, for example, by a threaded connection. The sludge collection box 5 is used to collect dried clumps that fall from the surface of the filter bag 3. When cleaning the filter bag 3, the dried clumps attached to the surface of the filter bag 3 are dislodged by blowing air through the nozzle 403 and tapping with the tapping head 404. Due to gravity, these clumps will sink downwards and eventually fall into the sludge collection box 5. The detachable connection between the sludge collection box 5 and the drain port 104 makes it convenient to remove the sludge collection box 5 from the drain port 104 for cleaning or replacement after it is full of clumps, and then reinstall it to the drain port 104 to continue collecting.

[0054] A hinged cover plate 6 is provided on the top of the housing 1, with its hinge point located on one side of the mounting port 103. It is connected to the top of the housing 1 via a pin. When the cover plate 6 is closed, it prevents gas leakage and ensures the internal sealing of the filter device. When the filter device is operating normally and the mounting bracket 401 is not installed in the mounting port 103, the cover plate 6 can be rotated downwards to seal the mounting port 103, preventing external impurities from entering the filter device and ensuring normal filtration performance. When the cleaning component 4 needs to be installed, the cover plate 6 can be rotated upwards to open the mounting port 103, facilitating the installation of the mounting bracket 401.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A filtration device for purifying carbon monoxide gas, characterized in that, The device includes a housing (1), a support basket (2), a filter bag (3), and a cleaning assembly (4). The housing (1) has an air inlet (101) and an air outlet (102). The support basket (2) is detachably disposed inside the housing (1), and the filter bag (3) is sleeved outside the support basket (2). The cleaning assembly (4) includes a mounting bracket (401), a lifting block (402), a jet nozzle (403), and a striking head (404). The housing (1) has a mounting opening (103) at the top. The mounting bracket (401) is detachably disposed in the mounting opening (103). The lifting block (402) is slidably disposed on the mounting bracket (401) and located in the support basket (2). The jet nozzle (403) is disposed on the lifting block (402) and has an annular jet hole on its outer periphery. The jet nozzle (403) is used to communicate with an external air supply element to spray the wet film layer on the surface of the filter bag (3) radially outward and dry and clump it. The striking head (404) is slidably disposed on the lifting block (402) radially and is used to strike the inner wall of the support basket (2) to shake off the dry clumps on the surface of the filter bag (3).

2. The filtration device for purifying carbon monoxide gas according to claim 1, characterized in that, The cleaning assembly (4) further includes a drive motor (405) and a lead screw (406). The drive motor (405) is located on the top of the mounting frame (401), and the lead screw (406) is rotatably located at the bottom of the mounting frame (401) and driven to rotate by the drive motor (405). The lead screw (406) is axially arranged along the support basket (2), and the lifting block (402) is threaded onto the lead screw (406).

3. The filtration device for purifying carbon monoxide gas according to claim 2, characterized in that, The mounting bracket (401) is provided with a guide rod (407) along the vertical direction, and the lifting block (402) is provided with a guide buckle (408). The guide buckle (408) is engaged with the guide rod (407) and slides along the guide rod (407) to guide the sliding of the lifting block (402).

4. The filtration device for purifying carbon monoxide gas according to claim 3, characterized in that, A spring (409) is provided between the striking head (404) and the lifting block (402). The two ends of the spring (409) act on the striking head (404) and the lifting block (402) respectively, to provide the striking head (404) with force close to the inner wall of the support basket (2). The striking head (404) has an actuating part (410). The guide rod (407) is provided with a plurality of actuating protrusions (411) in the vertical direction. The actuating part (410) of the striking head (404) can contact the plurality of actuating protrusions (411) in sequence under the drive of the lifting block (402), so that the striking head (404) continuously strikes the inner wall of the support basket (2).

5. The filtration device for purifying carbon monoxide gas according to claim 4, characterized in that, The striking head (404) is rotatably equipped with a rubber roller (412) at its end, and the rubber roller (412) is used to contact the inner wall of the support basket (2).

6. The filtration device for purifying carbon monoxide gas according to claim 1, characterized in that, The cleaning assembly (4) also includes an air supply hose (413), one end of which is connected to the air nozzle (403), and the other end is used to connect to an external air supply element.

7. The filtration device for purifying carbon monoxide gas according to claim 1, characterized in that, The bottom of the lifting block (402) is provided with an expansion plate (414). The expansion plate (414) can squeeze the inner wall of the support basket (2) under the action of the lifting block (402), so that the support basket (2) which deforms inward expands outward and returns to its original state.

8. The filtration device for purifying carbon monoxide gas according to claim 7, characterized in that, The outer expansion plate (414) is arc-shaped.

9. A filtration device for purifying carbon monoxide gas according to claim 1, characterized in that, The bottom of the housing (1) has a drain port (104), and a sludge collection box (5) is detachably installed inside the drain port (104). The sludge collection box (5) is used to collect the clumps that fall off the filter bag (3).

10. A filtration device for purifying carbon monoxide gas according to claim 1, characterized in that, The top of the housing (1) is hinged with a cover plate (6), which is used to block the mounting port (103) when the mounting bracket (401) is not installed in the mounting port (103).

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