Biological catalase tower applied to field of VOCs treatment

Abstract

The utility model discloses a biological catalase tower applied to the field of VOCs (Volatile Organic Compounds) treatment. The biological catalase tower comprises a tower body as well as a gas inlet pipeline, an efficient coalescence module, a biological catalase bed layer and a spraying pipeline which are sequentially arranged in the tower body from bottom to top, the efficient coalescence module is mounted in the tower body through an inverted device, and the inverted device consists of a top fixed structure and a bottom semi-fixed structure which are respectively positioned on the upper side and the lower side of the efficient coalescence module. The biological catalase bed layer utilizes biological enzyme to strengthen microbial strains and has the advantages of higher decomposition efficiency, more thorough reaction and better treatment effect, and the structural design of the inverted device enables the efficient coalescence module to realize flexible adjustment.

Description

Technical Field

[0001] This utility model relates to the field of VOCs treatment technology, and in particular to a biocatalytic tower used in the field of VOCs treatment. Background Technology

[0002] Because activated carbon can remove harmful gases such as formaldehyde, benzene, and VOCs, as well as disinfect and deodorize, activated carbon adsorption filter towers are suitable for VOCs waste gas treatment.

[0003] To address the shortcomings of conventional activated carbon adsorption filters in treating VOCs waste gas, those skilled in the art have proposed bio-activated carbon technology. This involves loading a certain amount of microorganisms onto the surface of activated carbon, converting the VOCs adsorbed on the activated carbon surface into harmless substances, thus achieving biodegradation. Furthermore, those skilled in the art have proposed using bio-enzymes to enhance the microbial strains, increasing their survival time under normal temperature and humidity conditions, thereby improving the efficiency and effectiveness of the strains in degrading VOCs. For the bio-catalyst bed, a coalescing module needs to be configured on its inlet side, and the coalescing module needs to be adjusted according to treatment requirements and changes in the performance of the bio-catalyst bed. However, currently, the coalescing module is installed in a fixed structure inside the tower, presenting a technical problem of inconvenience in adjustment. Summary of the Invention

[0004] To address the aforementioned technical problems, this utility model provides a biocatalytic tower for VOCs treatment. To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or to define the scope of protection of these embodiments. Its sole purpose is to present some concepts in a simple form as a prelude to the detailed description that follows.

[0005] The present invention adopts the following technical solution:

[0006] A biocatalyst tower for VOCs treatment is provided, comprising: a tower body and, from bottom to top, an air inlet pipe, a high-efficiency coalescing module, a biocatalyst bed, and a spray pipe arranged sequentially within the tower body; the high-efficiency coalescing module is installed within the tower body via an inverted device, the inverted device consisting of a top fixed structure and a bottom semi-fixed structure located on the upper and lower sides of the high-efficiency coalescing module respectively; the bottom semi-fixed structure includes: a detachable ring plate, an L-shaped suspension platform, a top support plate, an adjusting screw, and a transition plate; the L-shaped suspension platform is disposed on the inner wall of the tower body; the transition plate is sleeved on the adjusting screw and the adjusting screw is threadedly connected to the L-shaped suspension platform; the top end of the transition plate is hinged to a connecting plate; the connecting plate is hinged to the top support plate; and the detachable ring plate is connected to the top support plate.

[0007] Furthermore, the bottom semi-fixed structure also includes: a lower clamping beam, a lower clamping beam connector, and an inverted triangular reinforcing rib; there are two lower clamping beams, which are arranged side by side on the detachable ring plate, and the two ends of the lower clamping beams are connected to the detachable ring plate through the lower clamping beam connector, and the inverted triangular reinforcing rib is arranged on the detachable ring plate.

[0008] Furthermore, the top fixing structure includes: a fixing ring plate, an upper clamping beam, an upper clamping beam connector, and a positively mounted triangular reinforcing rib; the fixing ring plate is disposed on the inner wall of the tower body, there are two upper clamping beams, the two upper clamping beams are disposed side by side on the fixing ring plate, the two ends of the upper clamping beams are connected to the fixing ring plate through the upper clamping beam connector, and the positively mounted triangular reinforcing rib is disposed on the fixing ring plate.

[0009] Furthermore, the bio-catalyst bed is installed inside the tower body via a mounting device; the mounting device includes: a support ring plate, a grid-shaped clamping beam, and mounting components, the support ring plate is disposed on the inner wall of the tower body, and the grid-shaped clamping beam is disposed on the support ring plate via the mounting components.

[0010] Furthermore, the air intake pipe includes: an input main pipe, a reducing pipe, and several branch pipes disposed on both sides of the reducing pipe. The input main pipe is disposed on the side wall of the tower body. The reducing pipe is connected to the input main pipe. Several air outlets facing upward are disposed on the reducing pipe and the branch pipes.

[0011] Furthermore, the spray pipeline includes: a main spray pipe, a branch spray pipe, a support suspension pipe, and a sleeve flange. The support suspension pipe is disposed on the inner wall of the tower body, the sleeve flange is disposed on the outer wall of the tower body, the spray liquid delivery pipe extends from the sleeve flange into the interior of the tower body and is connected to the main spray pipe through a connecting flange, and the branch spray pipes are disposed on both sides of the main spray pipe.

[0012] Furthermore, the biocatalytic tower used in VOCs treatment further includes: a first level gauge and a second level gauge, which are disposed below the high-efficiency coalescing module.

[0013] Furthermore, the aforementioned biocatalyst tower for VOCs treatment also includes: a drain outlet, a gas outlet, a spray layer inspection hole, and an inlet pipe inspection hole disposed on the tower body.

[0014] The beneficial effects of this utility model are:

[0015] 1. The bio-catalyst bed utilizes bio-enzymes to enhance microbial strains, thereby improving their activity. Compared to conventional activated carbon adsorption and bio-activated carbon technology, it has the advantages of faster decomposition efficiency, more thorough reaction, and better treatment effect. At the same time, it can greatly reduce the amount of activated carbon used, extend the service life of activated carbon, and significantly reduce costs.

[0016] 2. The structural design of the inverted device allows for flexible adjustment of the high-efficiency coalescing module. The height of the detachable ring plate can be adjusted simply by rotating the adjusting screw. Moreover, the structural design is easy to assemble and disassemble, making it easy to operate and thus providing excellent pretreatment effect for the bio-catalyst bed. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the external structure of a biocatalytic tower applied in the field of VOCs treatment according to this utility model.

[0019] Figure 2 This is a schematic diagram of the internal structure of a biocatalytic enzyme tower applied in the field of VOCs treatment according to this utility model;

[0020] Figure 3 This is a schematic diagram of the top fixing structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the semi-fixed bottom structure of this utility model;

[0022] Figure 5 This is a connection diagram of the detachable ring plate, L-shaped suspension platform, top support plate, adjusting screw, and transition plate;

[0023] Figure 6 This is a schematic diagram of the structure of the mounting device of this utility model;

[0024] Figure 7 This is a schematic diagram of the air intake pipe of this utility model;

[0025] Figure 8 This is a schematic diagram of the structure of the spray pipe of this utility model. Detailed Implementation

[0026] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings. It should be understood that the described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] like Figure 1-8 As shown in some illustrative embodiments, a biocatalyst tower for VOCs treatment is provided, comprising: a tower body 1, an air inlet pipe 2, a high-efficiency coalescence module 3, a biocatalyst bed 4, a spray pipe 5, a first level gauge 6, a second level gauge 7, an inverting device, and an upright device 10.

[0028] The structural strength of tower body 1 needs to meet the requirements of the working conditions, and the tower body material needs to have a certain degree of corrosion resistance. As a preferred option, tower body 1 is made of 8mm thick steel plate, and the interior of tower body 1 is locally reinforced to increase the overall strength of the tower body. The entire tower body 1 is electrostatically sprayed with a coating thickness of not less than 80μm to increase the corrosion resistance of tower body 1.

[0029] The inlet pipe 2, high-efficiency coalescing module 3, bio-catalyst bed 4, and spray pipe 5 are arranged sequentially from bottom to top within the tower body 1. VOCs gas enters the tower body 1 through the inlet pipe 2. The structure of the inlet pipe 2 within the tower ensures that the gas is evenly distributed in the bottom space of the tower. The gas moves upward and passes through the high-efficiency coalescing module 3 for water vapor separation, isolating most of the water vapor and preventing excessive water vapor from affecting the decomposition and adsorption effects of the bio-catalyst. The bio-catalyst bed 4 has adsorption and decomposition effects on VOCs components. The bio-activated carbon has a high iodine value and high adsorption efficiency for VOCs components. Therefore, when the gas passes through the bio-catalyst bed 4, specific bacteria engulf and decompose the VOCs components, while the bio-activated carbon can also adsorb some of the VOCs components. The top part of the tower is the spray pipe 5. The nutrient solution is sprayed evenly onto the biological catalase bed 4 through the nozzles on the spray pipe 5, providing the necessary nutritional basis for the biological catalase, enabling the specific bacteria on the biological catalase bed 4 to survive better, maintain good biological activity, and extend the applicable period of the biological catalase.

[0030] The gas flow rate within tower 1 is ≤0.5m / s, which ensures a longer residence time of the gas in the biological catalyst bed 4, thus guaranteeing the VOCs gas removal rate.

[0031] The first level gauge 6 and the second level gauge 7 are located below the high-efficiency coalescing module 3. When the bottom level of the tower reaches a certain height, they can transmit an alarm signal to the centralized control system.

[0032] The high-efficiency coalescing module 3, made of stainless steel wire, has a high gas-liquid separation efficiency of over 95% and a bulk density of 250 kg / m³. 3 It has a porosity of 90%, a specific surface area of ​​500, a thickness of not less than 150mm, and is made of 304 stainless steel.

[0033] The high-efficiency coalescing module 3 is installed inside the tower body 1 by an inverted device. The inverted device consists of a top fixed structure 8 and a bottom semi-fixed structure 9 located on the upper and lower sides of the high-efficiency coalescing module 3, respectively. The high-efficiency coalescing module 3 is installed in an inverted manner.

[0034] The bottom semi-fixed structure 9 includes: a detachable ring plate 901, an L-shaped suspension platform 902, a top support plate 903, an adjusting screw 904, a transition plate 905, a lower clamping beam 906, a lower clamping beam connector 907, an inverted triangular reinforcing rib 908, a connecting plate 909, and a guide rail 910.

[0035] The L-shaped suspension platform 902 is installed on the inner wall of the tower body 1 and is connected by welding. A through hole is provided on the transition plate 905, and a screw hole is provided on the vertical part of the L-shaped suspension platform 902. The adjusting screw 904 passes through the transition plate 905 and is threadedly connected to the L-shaped suspension platform 902. The transition plate 905 is fitted onto the adjusting screw 904; therefore, as the adjusting screw 904 is gradually screwed into the L-shaped suspension platform 902, it will push the transition plate 905 closer to the L-shaped suspension platform 902. The top of the transition plate 905 is hinged to the connecting plate 909, which is hinged to the top support plate 903. A detachable ring plate 901 is connected to the top support plate 903. The transition plate 905 is connected to the horizontal part of the L-shaped suspension platform 902 via a guide rail 910. As the transition plate 905 gradually approaches the L-shaped suspension platform 902, the connecting plate 909 flips, the top support plate 903 moves upward, and in turn pushes the detachable ring plate 901 upward, narrowing the gap between the top fixed structure 8 and the bottom semi-fixed structure 9. When the adjusting screw 904 is gradually screwed out of the L-shaped suspension platform 902, the transition plate 905 gradually moves away from the L-shaped suspension platform 902 under the pressure from above, at which point the gap between the top fixed structure 8 and the bottom semi-fixed structure 9 widens.

[0036] There are two lower clamping beams 906, which are arranged side by side on the detachable ring plate 901. The two ends of the lower clamping beams 906 are connected to the detachable ring plate 901 through the lower clamping beam connectors 907. The inverted triangular reinforcing ribs 908 are arranged on the detachable ring plate 901. The upper end face of the lower clamping beams 906 is on the same horizontal plane as the detachable ring plate 901. The detachable ring plate 901 can be removed during installation.

[0037] The top fixing structure 8 includes: a fixing ring plate 801, an upper clamping beam 802, an upper clamping beam connector 803, and a positively mounted triangular reinforcing rib 804. The fixing ring plate 801 is installed on the inner wall of the tower body 1 and is connected by welding. There are two upper clamping beams 802, which are arranged side by side on the fixing ring plate 801. The two ends of the upper clamping beams 802 are connected to the fixing ring plate 801 through the upper clamping beam connector 803. The positively mounted triangular reinforcing rib 804 is installed on the fixing ring plate 801 to enhance the strength and rigidity of the fixing ring plate 801. The lower end face of the upper clamping beam 802 is on the same horizontal plane as the fixing ring plate 801.

[0038] The lower clamping beam 906 and the upper clamping beam 802 clamp the high-efficiency coalescing module 3 in the middle. Through the above structural design, the high-efficiency coalescing module 3 can remain stable in the high-temperature and high-pressure exhaust gas environment, is not prone to deformation or damage, and is easy to adjust, replace and maintain. When the coalescing medium is worn or blocked, it can be quickly replaced. At the same time, it improves the separation efficiency of droplets and solid particles in the gas and reduces the burden on downstream treatment equipment.

[0039] The bio-catalyst bed 4 is installed in a forward-mounted configuration within the tower body 1 via a forward-mounting device 10. The forward-mounting device 10 includes a support ring plate 1001, a grid-shaped clamping beam 1002, and mounting components 1003. The support ring plate 1001 is mounted on the inner wall of the tower body 1 and connected by welding. The grid-shaped clamping beam 1002 is mounted on the support ring plate 1001 via the mounting components 1003. The strength of the forward-mounting device 10 meets the load requirements of the bio-catalyst bed 4. The bottom of the forward-mounting device 10 must have a certain load-bearing capacity, with a flat grid at the bottom. The porosity of the grid is smaller than the particle size of the bio-activated carbon to prevent it from falling off. The filling height of the bio-activated carbon is adjusted according to its designed replacement cycle.

[0040] The intake pipe 2 includes: an input main pipe 201, a reducing pipe 202, and several branch pipes 203 located on both sides of the reducing pipe 202. The input main pipe 201 is located on the side wall of the tower body 1. The reducing pipe 202 is connected to the input main pipe 201 via flanges. Several outlet pipes 204 with upward-facing outlets are provided on the reducing pipe 202 and the branch pipes 203. The intake pipe 2 uses a reducing pipe arrangement inside, allowing for quick installation and removal. The intake pipe 2 achieves uniform gas distribution within the tower structure, with a distribution range of 200% of the tower's inner diameter. The gas distribution outlets are all upward-facing.

[0041] The spray pipe 5 includes: a main spray pipe 501, branch spray pipes 502, a support suspension pipe 503, and a sleeve flange 504. The support suspension pipe 503 is installed on the inner wall of the tower body 1, and the sleeve flange 504 is installed on the outer wall of the tower body 1. The spray liquid delivery pipe extends from the sleeve flange 504 into the interior of the tower body 1 and is connected to the main spray pipe 501 via a connecting flange 505. Branch spray pipes 502 are installed on both sides of the main spray pipe 501. The spray pipe 5 uses flange connections inside the tower body, allowing for quick installation and removal. The end of the spray pipe 5 uses a sleeve structure, with the main spray pipe 501 directly inserted into the support suspension pipe 503. A certain number of nozzles are installed on the main spray pipe 501 and the branch spray pipes 502. The coverage area of ​​the spray from the nozzles is 200% of the tower body diameter. The nozzles are rain nozzles, and the sprayed liquid is in the form of water droplets, evenly sprayed onto the biological catalyst bed.

[0042] The drain outlet 101, gas outlet 102, spray layer inspection hole 103, and air inlet pipe inspection hole 104 are provided on the tower body 1. The drain outlet 101 is used to discharge impurities, the gas outlet 102 is used to discharge the treated gas, the spray layer inspection hole 103 is used to facilitate personnel to maintain the spray pipe 5, and the air inlet pipe inspection hole 104 is used to facilitate personnel to maintain the air inlet pipe 2.

[0043] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A biocatalytic tower for VOCs treatment, characterized in that, include: The tower body includes, from bottom to top, an air inlet pipe, a high-efficiency coalescing module, a bio-catalyst bed, and a spray pipe. The high-efficiency coalescing module is installed in the tower body via an inverted device, which consists of a top fixed structure and a bottom semi-fixed structure located on the upper and lower sides of the high-efficiency coalescing module, respectively. The bottom semi-fixed structure includes a detachable ring plate, an L-shaped suspension platform, a top support plate, an adjusting screw, and a transition plate. The L-shaped suspension platform is disposed on the inner wall of the tower body. The transition plate is sleeved on the adjusting screw, and the adjusting screw is threadedly connected to the L-shaped suspension platform. The top of the transition plate is hinged to a connecting plate, the connecting plate is hinged to the top support plate, and the detachable ring plate is connected to the top support plate.

2. The biocatalytic tower for VOCs treatment according to claim 1, characterized in that, The bottom semi-fixed structure further includes: a lower clamping beam, a lower clamping beam connector, and an inverted triangular reinforcing rib; there are two lower clamping beams, which are arranged side by side on the detachable ring plate, and the two ends of the lower clamping beams are connected to the detachable ring plate through the lower clamping beam connector, and the inverted triangular reinforcing rib is arranged on the detachable ring plate.

3. The biocatalytic tower for VOCs treatment according to claim 2, characterized in that, The top fixing structure includes: a fixing ring plate, an upper clamping beam, an upper clamping beam connector, and a positively mounted triangular reinforcing rib; the fixing ring plate is disposed on the inner wall of the tower body, there are two upper clamping beams, the two upper clamping beams are disposed side by side on the fixing ring plate, the two ends of the upper clamping beams are connected to the fixing ring plate through the upper clamping beam connector, and the positively mounted triangular reinforcing rib is disposed on the fixing ring plate.

4. A biocatalytic tower for VOCs treatment according to claim 3, characterized in that, The bio-catalyst bed is installed inside the tower body via a mounting device; the mounting device includes: a support ring plate, a grid-shaped clamping beam, and mounting components. The support ring plate is disposed on the inner wall of the tower body, and the grid-shaped clamping beam is disposed on the support ring plate via the mounting components.

5. A biocatalytic tower for VOCs treatment according to claim 4, characterized in that, The air intake pipe includes: an input main pipe, a reducing pipe, and several branch pipes disposed on both sides of the reducing pipe. The input main pipe is disposed on the side wall of the tower body. The reducing pipe is connected to the input main pipe. Several air outlets facing upward are disposed on the reducing pipe and the branch pipes.

6. A biocatalytic tower for VOCs treatment according to claim 5, characterized in that, The spray pipeline includes: a main spray pipe, a branch spray pipe, a support suspension pipe, and a sleeve flange. The support suspension pipe is installed on the inner wall of the tower body, and the sleeve flange is installed on the outer wall of the tower body. The spray liquid delivery pipe extends from the sleeve flange into the interior of the tower body and is connected to the main spray pipe through a connecting flange. The branch spray pipes are installed on both sides of the main spray pipe.

7. A biocatalytic tower for VOCs treatment according to claim 6, characterized in that, Also includes: A first level gauge and a second level gauge are disposed below the high-efficiency coalescing module.

8. A biocatalytic tower for VOCs treatment according to claim 7, characterized in that, Also includes: The drain outlet, gas outlet, spray layer inspection hole, and air inlet pipe inspection hole are provided on the tower body.

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