A biological trickling filter tower with easy replacement of filler

Abstract

The utility model discloses a biological trickling filter tower convenient to change filler relates to biological trickling filter tower technical field, the utility model discloses a biological trickling filter tower body, biological trickling filter tower body inside filler area is provided with horizontal shift mechanism, and horizontal shift mechanism one side is provided with mobile support mechanism, and biological trickling filter tower body inside is provided with compacting mechanism, and horizontal shift mechanism inside is provided with partition mechanism, the utility model discloses through the mobile end drive of horizontal shift mechanism its inside partition mechanism moves to make partition mechanism completely move out biological trickling filter tower body, at this time to the filler in the partition mechanism filler end carries out partition hoisting, and the filler is replaced, the design will the filler replacement process completely shift to the tower outside operation, and the filler in the partition mechanism filler end is modularized replacement through the tower body outside partial block hoisting operation, avoids the damage of traditional tower maintenance to the internal component such as spray system, gas distribution device, and the equipment maintenance cost and maintenance difficulty are reduced.

Description

Technical Field

[0001] This utility model belongs to the field of biological trickling filter technology, and specifically relates to a biological trickling filter that is easy to replace the packing material. Background Technology

[0002] A bio-trickling filter is a biological waste gas treatment device used to treat volatile organic pollutants and odorous gases. Its core is a tower reactor filled with inert packing material. Microorganisms capable of degrading target pollutants grow on the surface of the packing material. Polluted gas enters from the bottom or side of the tower and flows upwards. Simultaneously, nutrient solution is sprayed down from the top of the tower, forming a liquid film on the packing surface. The gas and liquid phases come into countercurrent contact within the packing bed, transferring pollutants from the gas phase to the liquid phase and the biofilm, ultimately being degraded by the microorganisms as a carbon and energy source into carbon dioxide, water, and other harmless or low-harm products. It is widely used in the purification of odorous and organic waste gases generated in sewage treatment plants, waste disposal facilities, chemical plants, food processing plants, and other similar locations.

[0003] In existing bio-trickling filter technology, the working process is as follows: the waste gas to be treated enters from the bottom or side of the tower and passes through the filter layer composed of packing material from bottom to top. The pollutants in the waste gas come into contact with the microbial film attached to the surface of the packing material and are decomposed by the microorganisms into harmless substances such as carbon dioxide and water. At the same time, the nutrient solution in the circulating water tank is evenly sprayed from the top of the tower through the spray system and flows down through the packing layer to provide nutrients for the microorganisms and remove metabolic products. After some water evaporates, it is discharged from the top of the tower. The purified gas is then discharged from the top of the tower in compliance with standards. The entire process achieves waste gas purification through the synergistic effect of microbial degradation and liquid phase absorption.

[0004] However, in existing biotrickling filter packing technology, due to long-term continuous operation, impurities, microbial metabolites, and other pollutants in the exhaust gas gradually accumulate inside the packing. After several years of operation, the accumulation of debris inside the packing becomes severe, leading to a significant increase in resistance when gas passes through, i.e., a significant increase in pressure differential. This not only reduces the exhaust gas treatment efficiency but also increases the energy consumption of the equipment, necessitating the replacement of the packing. However, currently, the packing in biotrickling filters is fixed inside the tower. When replacing it, it is necessary to first remove part of the outer shell structure of the biotrickling filter and then enter the tower to disassemble the packing. Because the packing is tightly fixed, the process of removing and taking out the old packing can easily damage other structures inside the tower, such as the spray system and gas distribution device, increasing equipment maintenance costs and difficulty. Utility Model Content

[0005] In view of the problem that in related technologies, it is necessary to first remove part of the outer shell structure of the biotrickling filter tower and then disassemble the packing material inside the tower, which may easily damage other structures inside the tower, this utility model proposes a biotrickling filter tower that facilitates the replacement of the packing material, so as to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is a bio-trickling filter tower that is easy to replace the packing material. It includes a bio-trickling filter tower body, a transverse movement mechanism is provided in the packing area inside the bio-trickling filter tower body, a movable support mechanism is provided on one side of the transverse movement mechanism, a pressing mechanism is provided inside the bio-trickling filter tower body, and a partitioning mechanism is provided inside the transverse movement mechanism.

[0008] The moving end of the transverse mechanism drives the internal partitioning mechanism to move, so that the partitioning mechanism is completely moved out of the bio-trickling filter body. At this time, the packing in the packing end of the partitioning mechanism is replaced.

[0009] Furthermore, the transverse movement mechanism includes a motor, which is fixedly installed on one side of the biological trickling filter tower body. A lead screw is fixedly connected to the output shaft of the motor, and the lead screw is rotatably connected to the biological trickling filter tower body. A movable frame is threadedly connected to the surface of the lead screw, and the movable frame is slidably connected to the biological trickling filter tower body. A packing frame is fixedly connected inside the movable frame, and the packing frame is slidably connected to the packing area inside the biological trickling filter tower body. A limit rod is fixedly connected inside the biological trickling filter tower body, and the movable frame is slidably connected to the surface of the limit rod.

[0010] Furthermore, the mobile support mechanism includes a support frame, which is fixedly connected to one side of the biological trickling filter tower body. First rollers are rotatably connected to both sides of the support frame, and second rollers are rotatably connected to both sides of the mobile frame. Steel cables are wound around the surfaces of the first rollers and the second rollers.

[0011] Furthermore, the pressing mechanism includes a pressing filter plate, which is slidably connected inside the body of the bio-trickling filter tower. A guide rod is fixedly connected inside the body of the bio-trickling filter tower, and a spring is sleeved on the surface of the guide rod. One end of the spring is fixedly connected to the pressing filter plate, and the other end of the spring is fixedly connected to the inside of the body of the bio-trickling filter tower.

[0012] Furthermore, a lifting inclined plate is fixedly connected to the top of the packing frame, and the lifting inclined plate makes oblique contact with the bottom of the pressing filter plate. Several ball bearings are rotatably connected to the surface of the pressing filter plate, and several ball bearings make contact with the interior of the biological trickling filter tower body.

[0013] Furthermore, the partitioning mechanism includes partition frames, and a plurality of partition frames are provided. Each of the partition frames is slidably connected inside the packing frame, and a positioning frame is slidably connected inside the partition frame.

[0014] Furthermore, the surface of each partition frame is provided with several hoisting holes, and the interior of each partition frame is provided with spiral grooves.

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model uses the moving end of the transverse mechanism to drive the internal partitioning mechanism to move, so that the partitioning mechanism is completely moved out of the biological trickling filter tower body. At this time, the packing in the packing end of the partitioning mechanism is lifted in sections and replaced. This design completely transfers the packing replacement process to the outside of the tower. The packing in the packing end of the partitioning mechanism is replaced in a modular manner through the block lifting operation outside the tower, avoiding the damage to internal components such as the spray system and gas distribution device caused by traditional tower internal maintenance, and reducing equipment maintenance costs and difficulty.

[0017] 2. This utility model achieves pre-stabilization of the packing by hoisting the replaced packing into the packing frame and using the stacked partitioned frames. When the moving frame is reset to the body of the bio-trickling filter tower, the spring drives the pressing filter plate to press down along the guide rod, applying radial constraint force to the packing in the packing frame. This design completely avoids the risks of packing displacement, friction loss and biofilm peeling caused by spraying or airflow impact through the dual protection of mechanical self-locking pressing and partitioned frame positioning.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the utility model embodiments, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a side view of the present invention.

[0022] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0023] Figure 4 This is a schematic diagram of the internal structure of the bio-trickling filter body of this utility model;

[0024] Figure 5 This is a schematic diagram of the internal cross-sectional structure of the bio-trickling filter body of this utility model;

[0025] Figure 6 For the present utility model Figure 5 Enlarged structural diagram at point A in the middle.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Biological trickling filter tower body; 2. Horizontal movement mechanism; 201. Motor; 202. Lead screw; 203. Moving frame; 204. Packing frame; 205. Limiting rod; 3. Moving support mechanism; 301. Support frame; 302. First roller; 303. Steel cable; 304. Second roller; 4. Pressing mechanism; 401. Pressing filter plate; 402. Guide rod; 403. Spring; 404. Lifting inclined plate; 405. Ball bearing; 5. Zoning mechanism; 501. Zoning frame; 502. Positioning frame; 503. Lifting hole; 504. Spiral groove. Detailed Implementation

[0028] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.

[0029] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements 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 the utility model.

[0030] Please see Figures 1-6 As shown, this utility model is a bio-trickling filter tower that is easy to replace the packing material. It includes a bio-trickling filter tower body 1, a transverse movement mechanism 2 is provided in the packing area inside the bio-trickling filter tower body 1, a moving support mechanism 3 is provided on one side of the transverse movement mechanism 2, a pressing mechanism 4 is provided inside the bio-trickling filter tower body 1, and a partitioning mechanism 5 is provided inside the transverse movement mechanism 2.

[0031] The moving end of the transverse mechanism 2 drives the internal partitioning mechanism 5 to move so that the partitioning mechanism 5 is completely moved out of the biological trickling filter body 1. At this time, the packing in the packing end of the partitioning mechanism 5 is replaced.

[0032] The moving end of the transverse mechanism 2 drives the internal partition mechanism 5 to move. The moving support mechanism 3 moves synchronously to support the transverse mechanism 2 as it moves out of the bio-trickling filter body 1. At the same time, the pressing mechanism 4 is squeezed and pressed. At this time, the partition mechanism 5 moves completely out of the bio-trickling filter body 1. Then the packing in the packing end of the partition mechanism 5 is replaced. After the replacement is completed, the moving end of the transverse mechanism 2 drives the internal partition mechanism 5 to reset. After the reset is completed, the pressing mechanism 4 resets and presses the packing in the partition mechanism 5.

[0033] The moving end of the transverse mechanism 2 drives the internal partition mechanism 5 to move so that the partition mechanism 5 is completely moved out of the biological trickling filter tower body 1. At this time, the packing in the packing end of the partition mechanism 5 is lifted in sections and replaced. This design completely transfers the packing replacement process to the outside of the tower. The packing in the packing end of the partition mechanism 5 is replaced in a modular manner through the block lifting operation outside the tower. This avoids the damage to internal components such as the spray system and gas distribution device caused by traditional tower maintenance, and reduces equipment maintenance costs and difficulty.

[0034] In addition, in specific applications, the working principle of the bio-trickling filter body 1 is as follows: polluted gas enters from the bottom of the tower and flows upward through the packing layer; at the same time, nutrient solution is sprayed or dripped from the top of the tower onto the packing, keeping the biofilm on the surface of the packing moist and active. When the pollutants in the gas come into contact with the moist biofilm, the pollutants diffuse from the gas phase into the biofilm, are captured and metabolized by the microorganisms in the membrane as carbon and energy sources, and are eventually converted into harmless or low-harm substances such as carbon dioxide, water and microbial cytoplasm. The purified gas is then discharged from the top of the tower, thereby achieving the purpose of purifying the waste gas.

[0035] In one embodiment, the transverse mechanism 2 includes a motor 201, which is fixedly installed on one side of the biological trickling filter tower body 1. The output shaft of the motor 201 is fixedly connected to a lead screw 202, which is rotatably connected inside the biological trickling filter tower body 1. A movable frame 203 is threadedly connected to the surface of the lead screw 202, which is slidably connected inside the biological trickling filter tower body 1. A packing frame 204 is fixedly connected inside the movable frame 203, which is slidably connected to the packing area inside the biological trickling filter tower body 1. A limiting rod 205 is fixedly connected inside the biological trickling filter tower body 1, and the movable frame 203 is slidably connected to the surface of the limiting rod 205.

[0036] The motor 201 drives the lead screw 202 to rotate, which in turn drives the movable frame 203 to move within the biological trickling filter tower body 1. The movable frame 203 then drives the packing frame 204 to move out of the biological trickling filter tower body 1. While the movable frame 203 is moving, it slides on the surface of the limiting rod 205 to limit the position of the movable frame 203.

[0037] In one embodiment, the mobile support mechanism 3 includes a support frame 301, which is fixedly connected to one side of the biological trickling filter tower body 1. First rollers 302 are rotatably connected to both sides of the support frame 301, and second rollers 304 are rotatably connected to both sides of the mobile frame 203. Steel cables 303 are wound around the surfaces of the first rollers 302 and the second rollers 304.

[0038] When the movable frame 203 moves out of the biological trickling filter tower body 1, the second rollers 304 on both sides of it move synchronously, and the traction cable 303 is driven along the first roller 302. As the movable frame 203 is completely moved out, the cable 303 forms a triangular structure between the pre-set second roller 304 and the first roller 302, and the tension of the cable 303 forms a rigid support, thereby supporting the moved-out movable frame 203.

[0039] In one embodiment, the pressing mechanism 4 includes a pressing filter plate 401, which is slidably connected inside the bio-trickling filter tower body 1. A guide rod 402 is fixedly connected inside the bio-trickling filter tower body 1, and a spring 403 is sleeved on the surface of the guide rod 402. One end of the spring 403 is fixedly connected to the pressing filter plate 401, and the other end of the spring 403 is fixedly connected to the inside of the bio-trickling filter tower body 1. A lifting inclined plate 404 is fixedly connected to the top of the packing frame 204. The lifting inclined plate 404 is in oblique contact with the bottom of the pressing filter plate 401. A plurality of ball bearings 405 are rotatably connected to the surface of the pressing filter plate 401, and the plurality of ball bearings 405 are in contact with the inside of the bio-trickling filter tower body 1.

[0040] When the moving frame 203 is removed from the biological trickling filter tower body 1, the moving frame 203 drives the packing frame 204 to move synchronously, causing the packing frame 204 to move the lifting inclined plate 404. At the same time, the lifting inclined plate 404 squeezes the bottom of the pressing filter plate 401 at an angle, causing the pressing filter plate 401 to compress the spring 403. Simultaneously, the pressing filter plate 401 slides upward on the surface of the guide rod 402, driving several balls 405 to slide along the inside of the biological trickling filter tower body 1, causing the pressing filter plate 401 to loosen. Then, the packing frame 204 is moved out of the biological trickling filter tower body 1. One side of the moving frame 203 will continue to squeeze the bottom of the pressing filter plate 401 to prevent the pressing filter plate 401 from rebounding until the packing in the packing frame 204 is replaced. When the moving frame 203 is reset and moved back into the biological trickling filter tower body 1, the spring 403 drives the pressing filter plate 401 to press the packing in the packing frame 204, preventing the packing from shifting under the flushing of the spray system.

[0041] In one embodiment, the partitioning mechanism 5 includes a partition frame 501, and a plurality of partition frames 501 are provided. The plurality of partition frames 501 are slidably connected inside the filler frame 204. A positioning frame 502 is slidably connected inside the partition frame 501. A plurality of lifting holes 503 are opened on the surface of the partition frame 501. A spiral groove 504 is opened inside the partition frame 501.

[0042] When the biological trickling filter tower body 1 is removed through the packing frame 204, the lifting ring is installed in the lifting hole 503. The partition frame 501 is then lifted out by the crane, and the packing inside the partition frame 501 is replaced. By setting the positioning frame 502 and the spiral groove 504 inside the partition frame 501, the replaced packing can be prevented from shifting inside the partition frame 501. At the same time, the replaced packing is lifted back into the packing frame 204. Through the stacked partition frames 501, the packing can be further stabilized.

[0043] Among them, the bottom of the partition frame 501 and the packing frame 204 are both filter mesh, which can enable the chemical water sprayed by the spraying system to flow through.

[0044] Through the above technical solution, 1. The screw 202 is rotated by the machine 201, causing the screw 202 to move the movable frame 203 within the bio-trickling filter body 1. The movable frame 203 then moves the packing frame 204 out of the bio-trickling filter body 1. Simultaneously, the movable frame 203 slides on the surface of the limiting rod 205, thus limiting its position. When the movable frame 203 moves out of the bio-trickling filter body 1, the second rollers 304 on both sides of it move synchronously, tractioning the steel cable 303 along the first roller 302. As the movable frame 203 completely moves out, the steel cable 303 forms a triangular structure between the pre-set second roller 304 and the first roller 302, utilizing the tension of the steel cable 303 to form a rigid support, thereby supporting the movable frame 203. When the mobile frame 203 is removed from the bio-trickling filter tower body 1 via the packing frame 204, the lifting ring is installed in the lifting hole 503. The partition frame 501 is then lifted out by a crane, and the packing inside the partition frame 501 is replaced. By setting the positioning frame 502 and the spiral groove 504 inside the partition frame 501, the replaced packing can be prevented from shifting inside the partition frame 501. At the same time, the replaced packing is lifted back into the packing frame 204. This design completely transfers the packing replacement process to the outside of the tower. The packing inside the partition frame 501 is replaced modularly by the block lifting operation outside the tower, avoiding the damage to the internal components such as the spray system and gas distribution device caused by traditional in-tower maintenance, and reducing equipment maintenance costs and difficulty.

[0045] 2. By placing the replaced packing material in the hoisted packing return frame 204 and using the stacked partition frames 501, the packing material can be further stabilized. Then, when the moving frame 203 is reset and moved into the bio-trickling filter body 1, the spring 403 drives the pressing filter plate 401 to press the packing material in the packing frame 204, preventing the packing material from shifting under the scouring of the spray system. This design, through the dual protection of mechanical self-locking pressing and partition frame 501 positioning, completely avoids the risk of packing material displacement, friction loss, and biofilm peeling caused by spray scouring or airflow impact.

[0046] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0047] The preferred embodiments of the utility model disclosed above are merely illustrative of the utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the utility model, thereby enabling those skilled in the art to better understand and utilize it. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A trickling biofilter tower which facilitates replacement of filler, comprising a biofilter tower body (1), characterized in that, The biological trickling filter tower body (1) is provided with a transverse movement mechanism (2) in the internal packing area, and a movable support mechanism (3) is provided on one side of the transverse movement mechanism (2). The biological trickling filter tower body (1) is provided with a pressing mechanism (4), and the transverse movement mechanism (2) is provided with a partitioning mechanism (5). The partition mechanism (5) inside the transverse mechanism (2) is driven to move by the moving end of the transverse mechanism (2) so that the partition mechanism (5) is completely moved out of the biological trickling filter body (1). At this time, the packing in the packing end of the partition mechanism (5) is replaced.

2. A bio-trickling filter tower with easily replaceable packing material according to claim 1, characterized in that, The transverse mechanism (2) includes a motor (201), which is fixedly installed on one side of the biological trickling filter body (1). The output shaft of the motor (201) is fixedly connected to a lead screw (202), which is rotatably connected inside the biological trickling filter body (1). A movable frame (203) is threadedly connected to the surface of the lead screw (202), which is slidably connected inside the biological trickling filter body (1). A packing frame (204) is fixedly connected inside the movable frame (203), which is slidably connected to the packing area inside the biological trickling filter body (1). A limiting rod (205) is fixedly connected inside the biological trickling filter body (1), and the movable frame (203) is slidably connected to the surface of the limiting rod (205).

3. A bio-trickling filter tower with easily replaceable packing material according to claim 2, characterized in that, The mobile support mechanism (3) includes a support frame (301), which is fixedly connected to one side of the biological trickling filter body (1). First rollers (302) are rotatably connected to both sides of the support frame (301), and second rollers (304) are rotatably connected to both sides of the mobile frame (203). Steel cables (303) are wound around the surfaces of the first rollers (302) and the second rollers (304).

4. A bio-trickling filter tower with easily replaceable packing material according to claim 3, characterized in that, The pressing mechanism (4) includes a pressing filter plate (401), which is slidably connected inside the body (1) of the bio-trickling filter tower. A guide rod (402) is fixedly connected inside the body (1) of the bio-trickling filter tower. A spring (403) is sleeved on the surface of the guide rod (402). One end of the spring (403) is fixedly connected to the pressing filter plate (401), and the other end of the spring (403) is fixedly connected to the inside of the body (1) of the bio-trickling filter tower.

5. A bio-trickling filter tower with easily replaceable packing material according to claim 4, characterized in that, The top of the packing frame (204) is fixedly connected to a lifting inclined plate (404), which is in oblique contact with the bottom of the pressing filter plate (401). A number of ball bearings (405) are rotatably connected to the surface of the pressing filter plate (401), and the ball bearings (405) are in contact with the interior of the biological trickling filter tower body (1).

6. A bio-trickling filter tower with easily replaceable packing material according to claim 5, characterized in that, The partitioning mechanism (5) includes a partition frame (501), and a plurality of partition frames (501) are provided. The plurality of partition frames (501) are slidably connected inside the filler frame (204), and a positioning frame (502) is slidably connected inside the partition frame (501).

7. A bio-trickling filter tower with easily replaceable packing material according to claim 6, characterized in that, The partition frame (501) has several lifting holes (503) on its surface and a spiral groove (504) inside its interior.

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