Interlaced low-resistance large-flux denitration catalytic device

By designing an interleaved, low-resistance, high-flux denitrification catalytic device, the combination structure of a U-shaped support frame and silica gel blocks was used to achieve self-cleaning and cooling of the catalyst, solving the problems of reduced catalyst activity and difficulty in cleaning flue gas filter components, thereby improving denitrification efficiency and flue gas treatment efficiency.

CN224672352UActive Publication Date: 2026-08-25SHANDONG AIREP ENVIRONMENTAL TECH CO LTD
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Patent Information

Application Number
CN202522028882.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-22
Publication Date
2026-08-25
Estimated Expiration
2035-09-22

AI Technical Summary

Technical Problem

Existing denitrification catalytic devices suffer from excessively high temperatures during the catalytic process, leading to reduced catalyst activity. Furthermore, the flue gas filter components are difficult to clean after catalysis.

Method used

The design incorporates a staggered, low-resistance, high-flow denitrification catalytic device, including a filter mechanism with a U-shaped support frame. The filter screen is movable and uses silicone blocks to scrape away dirt, combined with a cooling water tank for rapid cooling.

Benefits of technology

It achieves efficient maintenance of catalyst activity and self-cleaning function of flue gas filter components, improves denitrification efficiency and flue gas treatment efficiency, and reduces flue gas temperature.

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Abstract

The utility model belongs to the field of gas purification, concretely is staggered type low resistance big flux denitration catalytic device, including main body mechanism, the left side of main body mechanism outer end is installed with drive mechanism, the upper portion in main body mechanism inside is installed with filter mechanism, the inside of main body mechanism is located the upper portion of filter mechanism and is installed with cooling mechanism, filter mechanism includes support frame, the left side fixed mounting of support frame upper end has silica gel block, the middle part fixed mounting of support frame upper end has mounting block, the upper end fixed mounting of mounting block has pivot, the upper end fixed mounting of pivot has support rod, the upper end fixed mounting of support rod has filter screen, through with the inside end of support frame setting is U type structure, and inside end is arc and right end is higher than left end, the structure design that silica gel block and filter screen of support frame upper end one side installation are pasted, has the function that realizes the inside filter mechanism of the device has self -cleaning.
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Description

Technical Field

[0001] This utility model relates to the field of gas purification, specifically an interleaved, low-resistance, high-throughput denitrification catalytic device. Background Technology

[0002] Catalysis refers to the process in a chemical reaction where a catalyst changes the reaction rate but does not change the total standard Gibbs free energy of the reaction. Denitration catalysis refers to the process in which gas passes through a catalyst inside a catalytic reactor to remove nitrate. Catalysis can be divided into many categories, among which biocatalysis is the most prominent.

[0003] In conventional catalytic equipment, excessively high temperatures during the catalytic process can affect catalyst activity, leading to reduced catalytic efficiency. Chinese Patent Publication No. CN118217782B proposes a tail gas denitrification reactor for hydrogenation catalyst production. By incorporating heat-absorbing pipes, the temperature of the catalyst box is reduced, maintaining its activity and achieving effective catalysis. In practical applications, the gas after denitrification catalysis requires filtration before discharge. While the elastic interception net inside the aforementioned device intercepts other molecules in the gas and has a self-cleaning function that doesn't affect the net's interception, the intercepted substances remain inside the device and cannot be discharged after self-cleaning. Therefore, to address these issues, a staggered, low-resistance, high-throughput denitrification catalytic device is proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, such as the difficulty in cleaning flue gas filter components after denitrification catalysis, this invention proposes an interleaved, low-resistance, high-throughput denitrification catalytic device.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an interleaved low-resistance high-flux denitrification catalytic device, including a main body; a drive mechanism is installed on the left side of the outer end of the main body, a filter mechanism is installed on the upper part of the main body, and a cooling mechanism is installed on the upper part of the main body above the filter mechanism. The filtration mechanism includes a support frame, a silicone block is fixedly installed on the left side of the upper end of the support frame, an mounting block is fixedly installed in the middle of the upper end of the support frame, a rotating shaft is fixedly installed on the upper end of the mounting block, a support rod is fixedly installed on the upper end of the rotating shaft, a filter screen is fixedly installed on the upper end of the support rod, and a rack ring is fixedly installed on the outer end of the filter screen. By setting the filter screen, the device filters internal substances during desulfurization catalysis, thereby improving the environmental friendliness of the gas discharged. Furthermore, the rotating shaft installed in the middle of the mounting block and the support rod gives the filter screen a movable structure inside the device.

[0006] Preferably, the main body includes a base, a denitrification catalytic tank is fixedly installed on the right side of the upper end of the base, an air inlet pipe is fixedly connected to the lower outer end of the denitrification catalytic tank, an air outlet pipe is fixedly connected to the upper end of the denitrification catalytic tank, a return pipe is fixedly connected to the middle of the outer end of the air outlet pipe, a denitrification module is fixedly installed in the middle of the inner end of the denitrification catalytic tank, a through hole is opened in the middle of the front end of the denitrification catalytic tank above the denitrification module, a drain port is opened in the middle of the rear end of the denitrification catalytic tank, the upper end of the return pipe is connected to the air outlet pipe, and the lower end is connected to the air inlet pipe, which assists in the discharge of the air outlet pipe and can perform secondary denitrification catalysis on the diverted gas.

[0007] Preferably, the drive mechanism includes a fixed plate, a motor is fixedly mounted on the upper end of the fixed plate, a drive shaft is fixedly mounted on the drive end of the motor, a reinforcing block is movably mounted on the middle of the drive shaft, a gear is fixedly mounted on the upper end of the drive shaft, and the drive shaft passes through the interior of the reinforcing block and is movably connected, so that the drive shaft swings less during use and its stability is improved.

[0008] Preferably, the cooling mechanism includes a circulating pump, with a water supply pipe fixedly connected to the lower end of the circulating pump, a connecting pipe fixedly connected to the inner end of the circulating pump, a cooling water tank fixedly installed at the front end of the connecting pipe, and a drain pipe fixedly connected to the right end of the cooling water tank. The outer shell of the cooling water tank can be made of metal and installed inside the denitrification catalytic tank, which can quickly absorb the heat from the gas pipe to reduce the temperature of the exhaust gas.

[0009] Preferably, the support frame is fixedly installed at the inner end of the denitrification catalytic tank. The left and right ends of the support frame are fixedly connected to the drain port. The support frame has a U-shaped structure, with the right end higher than the left. The filter screen and the denitrification catalytic tank are movably connected, and the rack and pinion ring and gear are meshed. Because the support frame has a U-shaped structure and an arc-shaped inner end, the silicone block installed on the upper right side of the support frame fits against the lower end of the filter screen. When the filter screen rotates through the meshing connection of the rack and pinion ring and gear, the silicone block can scrape away dirt from its lower end without damaging the filter screen. The scraped dirt falls onto the inner end of the support frame, and then, through the arc-shaped structure of its inner end, the dirt automatically slides to both sides, finally being discharged through the drain port. This structure enables the self-cleaning function of the filter mechanism inside the device.

[0010] Preferably, the drain outlets are symmetrically distributed in the middle of the front and rear ends of the denitrification catalytic tank, the lower end of the return pipe is fixedly connected to the air inlet pipe, and the drain outlets on both sides of the denitrification catalytic tank facilitate the discharge of dirt after the denitrification catalysis is completed inside.

[0011] Preferably, the fixing plate and the base are fixedly connected, the outer end of the gear is adapted to the through hole, the reinforcing block and the outer end of the denitrification catalytic tank are fixedly connected, and the through hole is provided so that the gear can pass through the denitrification catalytic tank and mesh with the rack ring, so that the filter screen can rotate inside the device when the gear rotates.

[0012] Preferably, the circulating pump is fixedly installed at the outer end of the denitrification catalytic tank, the cooling water tank is fixedly installed above the inner end of the denitrification catalytic tank, the cooling water tank is fixedly installed at the outer end below the gas outlet pipe, the drain pipe extends out of the outer side of the denitrification catalytic tank, and the cooling water tank is located at the outer end of the gas outlet pipe in a wrapping structure. The circulating pump can quickly replace the water flow inside the cooling water tank, thereby achieving cooling when the flue gas inside the gas outlet pipe is discharged.

[0013] The advantages of this utility model are: 1. This utility model, through the structural design of a U-shaped support frame with an arc-shaped inner end and a right end higher than the left end, and a silicone block installed on one side of the upper end of the support frame that fits into the filter screen, realizes the self-cleaning function of the internal filtration mechanism of the device, solves the problem of the flue gas filtration components being difficult to clean after denitrification catalysis, and improves the flue gas treatment efficiency of the denitrification catalysis equipment. 2. This utility model uses a cooling water tank installed in a wrapping structure at the outer end of the exhaust pipe. The water flow inside the cooling water tank is quickly replaced by a circulating pump, thereby achieving cooling when the flue gas inside the exhaust pipe is discharged. Attached Figure Description

[0014] 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.

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the main structure of the present utility model; Figure 3 This is a schematic diagram of the drive mechanism structure of this utility model; Figure 4 This is a schematic diagram of the filter mechanism structure of this utility model; Figure 5 This is a schematic diagram of the cooling mechanism of this utility model.

[0016] In the diagram: 1. Main structure; 101. Base; 102. Denitrification catalytic tank; 103. Inlet pipe; 104. Outlet pipe; 105. Return pipe; 106. Denitrification module; 107. Through hole; 108. Drain outlet; 2. Drive mechanism; 201. Fixing plate; 202. Motor; 203. Drive shaft; 204. Reinforcing block; 205. Gear; 3. Filter mechanism; 301. Support frame; 302. Silicone block; 303. Mounting block; 304. Rotating shaft; 305. Support rod; 306. Filter screen; 307. Rack ring; 4. Cooling mechanism; 401. Circulating pump; 402. Water supply pipe; 403. Connecting pipe; 404. Cooling water tank; 405. Drain pipe. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0018] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail. This application discloses an interleaved, low-resistance, high-throughput denitrification catalytic converter. (Refer to...) Figure 1 The staggered low-resistance high-flux denitrification catalytic device includes a main body 1; a drive mechanism 2 is installed on the left side of the outer end of the main body 1; a filter mechanism 3 is installed on the upper part of the main body 1; and a cooling mechanism 4 is installed on the inside of the main body 1 above the filter mechanism 3.

[0019] Reference Figure 3 and Figure 4 The filter mechanism 3 includes a support frame 301. A silicone block 302 is fixedly installed on the left side of the upper end of the support frame 301. An installation block 303 is fixedly installed in the middle of the upper end of the support frame 301. A rotating shaft 304 is fixedly installed at the upper end of the installation block 303. A support rod 305 is fixedly installed at the upper end of the rotating shaft 304. A filter screen 306 is fixedly installed at the upper end of the support rod 305. A rack ring 307 is fixedly installed at the outer end of the filter screen 306. The rotating shaft 304 is installed in the middle of the installation block 303 and the support rod 305, so that the filter screen 306 has a movable structure inside the device. The support frame 301 is fixedly installed at the inner end of the denitrification catalytic tank 102. The left and right ends of the support frame 301 are fixedly connected to the drain port 108. The support frame 301 has a U-shaped structure, with the right end higher than the left. The filter screen 306 is movably connected to the denitrification catalytic tank 102, and the rack ring 307 and gear 205 are meshed. Because the support frame 301 has a U-shaped structure and an arc-shaped inner end, with the right end higher than the left, the silicone block 302 installed on the upper right side of the support frame 301 adheres to the filter screen. At the lower end of the filter screen 306, when the filter screen 306 rotates through the meshing connection between the rack ring 307 and the gear 205, the silicone block 302 can scrape off the dirt at its lower end without damaging the filter screen 306. The scraped dirt falls into the inner end of the support frame 301, and then the arc-shaped structure at its inner end causes the dirt to slide automatically to both sides, and finally the dirt is discharged through the drain port 108. This structure enables the filter mechanism 3 inside the device to have a self-cleaning function.

[0020] Reference Figure 1 and Figure 2 The main body 1 includes a base 101. A denitrification catalytic tank 102 is fixedly installed on the right side of the upper end of the base 101. An air inlet pipe 103 is fixedly connected to the lower part of the outer end of the denitrification catalytic tank 102. An air outlet pipe 104 is fixedly connected to the upper end of the denitrification catalytic tank 102. A return pipe 105 is fixedly connected to the middle part of the outer end of the air outlet pipe 104. A denitrification module 106 is fixedly installed in the middle part of the inner end of the denitrification catalytic tank 102. A through hole 107 is opened in the middle part of the front end of the denitrification catalytic tank 102 above the denitrification module 106. A drain port 108 is opened in the middle part of the rear end of the denitrification catalytic tank 102. The upper end of the return pipe 105 is connected to the air outlet pipe 104, and the lower end is connected to the air inlet pipe 103. While assisting the air outlet pipe 104 in discharging, the diverted gas can be subjected to secondary denitrification catalysis. The drain outlets 108 are symmetrically distributed in the middle of the front and rear ends of the denitrification catalytic tank 102. The lower end of the return pipe 105 is fixedly connected to the air inlet pipe 103. The drain outlets 108 on both sides of the denitrification catalytic tank 102 facilitate the discharge of dirt after the denitrification catalysis is completed inside.

[0021] Reference Figure 1 and Figure 3 The drive mechanism 2 includes a fixed plate 201, a motor 202 is fixedly mounted on the upper end of the fixed plate 201, a drive shaft 203 is fixedly mounted on the transmission end of the motor 202, a reinforcing block 204 is movably mounted in the middle of the drive shaft 203, a gear 205 is fixedly mounted on the upper end of the drive shaft 203, and the drive shaft 203 passes through the interior of the reinforcing block 204 and is movably connected, so that the drive shaft 203 swings less during use and improves its stability. The fixing plate 201 and the base 101 are fixedly connected. The outer end of the gear 205 is adapted to the through hole 107. The reinforcing block 204 is fixedly connected to the outer end of the denitrification catalyst tank 102. The through hole 107 allows the gear 205 to pass through the denitrification catalyst tank 102 and mesh with the rack ring 307. Thus, when the gear 205 rotates, the filter screen 306 can rotate inside the device. Reference Figure 1 and Figure 5 The cooling mechanism 4 includes a circulating pump 401, a water supply pipe 402 fixedly connected to the lower end of the circulating pump 401, a connecting pipe 403 fixedly connected to the inner end of the circulating pump 401, a cooling water tank 404 fixedly installed at the front end of the connecting pipe 403, and a drain pipe 405 fixedly connected to the right end of the cooling water tank 404. The outer shell of the cooling water tank 404 can be made of metal and installed inside the denitrification catalytic tank 102. It can quickly draw out the temperature around the gas pipe 104 and improve the cooling efficiency. The circulating pump 401 is fixedly installed at the outer end of the denitrification catalytic tank 102, the cooling water tank 404 is fixedly installed above the inner end of the denitrification catalytic tank 102, the cooling water tank 404 is fixedly installed at the outer end below the gas outlet pipe 104, the drain pipe 405 extends out of the outer side of the denitrification catalytic tank 102, and the cooling water tank 404 is located at the outer end of the gas outlet pipe 104 in a wrapping structure. The circulating pump 401 can quickly replace the water flow inside the cooling water tank 404, thereby achieving the cooling of the flue gas inside the gas outlet pipe 104 when it is discharged.

[0022] Working Principle: This utility model relates to an interleaved, low-resistance, high-throughput denitrification catalytic device. During operation, flue gas enters the denitrification catalytic tank 102 through the inlet pipe 103. The denitrification module 106 rapidly processes the flue gas, and the denitrification catalytically treated flue gas passes through the filter screen 306 for filtration before being discharged through the outlet pipe 104. During filtration, the drive motor 202 drives the transmission shaft 203 to rotate the gear 205. The gear 205 engages with the rack ring 307 installed on the outer end of the denitrification catalytic tank 102 through a through hole 107. Therefore, the filter screen 306, via the lower rotating shaft 304, rotates inside the denitrification catalytic tank 102 following the rotation of the gear 205. The support frame 301 installed at the lower end of the filter screen 306 has a U-shaped structure, and the right end of the support frame 301 is longer than... The left end is higher, allowing the silicone block 302 installed on the upper right side of the support frame 301 to fit against the lower end of the filter screen 306. When the filter screen 306 rotates through the meshing connection of the rack ring 307 and the gear 205, the silicone block 302 can scrape off the dirt at the lower end of the filter screen 306 without damaging it. The scraped dirt falls into the inner end of the support frame 301, and then the arc-shaped structure of its inner end causes the dirt to slide automatically to both sides. Finally, the dirt is discharged through the drain port 108. This structure enables the filter mechanism 3 inside the device to have a self-cleaning function. The various components of the device complement each other. The cooling water tank 404 is installed in a wrapping structure on the outer end of the air outlet pipe 104. The circulating pump 401 quickly replaces the water flow inside the cooling water tank 404, thereby achieving cooling when the flue gas inside the air outlet pipe 104 is discharged.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An interleaved, low-resistance, high-flux denitrification catalytic converter, characterized in that: It includes a main body (1); a drive mechanism (2) is installed on the left side of the outer end of the main body (1); a filter mechanism (3) is installed on the upper part of the main body (1); and a cooling mechanism (4) is installed on the upper part of the main body (1) above the filter mechanism (3). The filtration mechanism (3) includes a support frame (301), a silicone block (302) is fixedly installed on the left side of the upper end of the support frame (301), an installation block (303) is fixedly installed in the middle of the upper end of the support frame (301), a rotating shaft (304) is fixedly installed on the upper end of the installation block (303), a support rod (305) is fixedly installed on the upper end of the rotating shaft (304), a filter screen (306) is fixedly installed on the upper end of the support rod (305), and a rack ring (307) is fixedly installed on the outer end of the filter screen (306).

2. The staggered low-resistance high-flux denitrification catalytic device according to claim 1, characterized in that: The main body (1) includes a base (101), a denitrification catalytic tank (102) is fixedly installed on the right side of the upper end of the base (101), an air inlet pipe (103) is fixedly connected to the lower part of the outer end of the denitrification catalytic tank (102), an air outlet pipe (104) is fixedly connected to the upper end of the denitrification catalytic tank (102), a return pipe (105) is fixedly connected to the middle part of the outer end of the air outlet pipe (104), a denitrification module (106) is fixedly installed in the middle part of the inner end of the denitrification catalytic tank (102), a through hole (107) is opened in the middle part of the front end of the denitrification catalytic tank (102) above the denitrification module (106), and a drain outlet (108) is opened in the middle part of the rear end of the denitrification catalytic tank (102).

3. The staggered low-resistance high-flux denitrification catalytic device according to claim 2, characterized in that: The drive mechanism (2) includes a fixed plate (201), a motor (202) is fixedly installed on the upper end of the fixed plate (201), a transmission shaft (203) is fixedly installed on the transmission end of the motor (202), a reinforcing block (204) is movably installed in the middle of the transmission shaft (203), and a gear (205) is fixedly installed on the upper end of the transmission shaft (203).

4. The staggered low-resistance high-flux denitrification catalytic device according to claim 3, characterized in that: The cooling mechanism (4) includes a circulating pump (401), a water supply pipe (402) is fixedly connected to the lower end of the circulating pump (401), a connecting pipe (403) is fixedly connected to the inner end of the circulating pump (401), a cooling water tank (404) is fixedly installed at the front end of the connecting pipe (403), and a drain pipe (405) is fixedly connected to the right end of the cooling water tank (404).

5. The staggered low-resistance high-flux denitrification catalytic device according to claim 4, characterized in that: The support frame (301) is fixedly installed at the inner end of the denitrification catalytic tank (102). The left and right ends of the support frame (301) are fixedly connected to the drain port (108). The support frame (301) has a U-shaped structure. The inner end of the support frame (301) has an arc-shaped structure. The right end of the support frame (301) is higher than the left end. The filter screen (306) and the denitrification catalytic tank (102) are movably connected. The rack ring (307) and the gear (205) are meshing connected.

6. The staggered low-resistance high-flux denitrification catalytic device according to claim 5, characterized in that: The drain outlet (108) is symmetrically distributed in the middle of the front and rear ends of the denitrification catalytic tank (102), and the lower end of the return pipe (105) is fixedly connected to the air inlet pipe (103).

7. The staggered low-resistance high-flux denitrification catalytic converter according to claim 6, characterized in that: The fixing plate (201) and the base (101) are fixedly connected, the outer end of the gear (205) is adapted to the through hole (107), and the reinforcing block (204) and the outer end of the denitrification catalyst tank (102) are fixedly connected.

8. The staggered low-resistance high-flux denitrification catalytic converter according to claim 7, characterized in that: The circulating pump (401) is fixedly installed at the outer end of the denitrification catalytic tank (102), the cooling water tank (404) is fixedly installed above the inner end of the denitrification catalytic tank (102), the cooling water tank (404) is fixedly installed at the outer end below the gas outlet pipe (104), and the drain pipe (405) extends out of the outer side of the denitrification catalytic tank (102).

Citation Information

Patent Citations

  • Tail gas denitrification reactor for hydrogenation catalyst production

    CN118217782B