A cleaning device for flue gas denitration catalyst regeneration

By introducing an isolated porous high-pressure air-blowing cleaning mechanism into the denitrification catalyst cleaning device, the cleaning liquid is rapidly bubbled using the high-pressure air-blowing component, which solves the problem of low cleaning rate in existing devices and achieves efficient catalyst regeneration.

CN224405153UActive Publication Date: 2026-06-26HEBEI XUZENG ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI XUZENG ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
Filing Date
2025-07-28
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing denitrification catalyst cleaning devices have low cleaning rates due to their single-pore or few-pore internal structures, making them unable to effectively clean porous denitrification catalysts.

Method used

An isolated porous high-pressure air-blowing cleaning mechanism is adopted. By evenly arranging ventilated high-pressure air-blowing components and hollow air-blowing pipes in the cleaning tank, high-pressure air-blowing is used to make the cleaning liquid bubble rapidly, thereby achieving efficient cleaning of porous denitrification catalysts.

Benefits of technology

It improves the cleaning efficiency of denitrification catalysts, reduces cleaning costs, and achieves efficient catalyst regeneration.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of cleaning device for flue gas denitration catalyst regeneration, it is related to catalyst cleaning technical field, when using, as shown in Figure Three, multiple ventilation type high pressure gas blowing components are evenly arranged in the inside of cleaning pool main body, and multiple gas blowing ports are evenly arranged on the surface of the hollow blast pipe in the inside, after filling cleaning fluid in the inside of cleaning pool main body, as shown in Figure Two, ventilation type high pressure gas blowing component is blown by high pressure gas blowing pipe at both ends simultaneously, so that the gas blowing amount of the gas blowing port on the surface of each hollow blast pipe is consistent, so that the cleaning fluid in the inside is rapidly bubbled, so that the porous denitration catalyst placed on the upper end of support isolation component is efficiently cleaned, and the cleaning fluid is driven by ventilation type high pressure gas blowing component to rapidly clean the nitration agent in the inside of porous denitration catalyst by rapid bubbling, and the cleaning efficiency is increased.
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Description

Technical Field

[0001] This utility model relates to the field of catalyst cleaning technology, and in particular to a cleaning device for regenerating flue gas denitrification catalysts. Background Technology

[0002] Selective catalytic reduction (SCR) denitrification technology is widely used, but its core component—the denitrification catalyst—is prone to failure due to dust blockage, chemical poisoning (such as arsenic and alkali metals) and surface sintering during long-term operation. Directly replacing the catalyst is costly (accounting for 30% to 50% of the total cost of the denitrification system). Therefore, catalyst regeneration technology has become an economical and environmentally friendly option.

[0003] However, in existing denitrification catalyst cleaning devices, the internal pipes of water-based cleaning devices are usually of a few or single-hole structure. Since the surface of the denitrification catalyst is composed of multiple through-holes, the single-hole or few-hole air-blown water-based cleaning device will affect the cleaning rate of the internal pores of the denitrification catalyst.

[0004] Therefore, we provide a cleaning device for the regeneration of flue gas denitrification catalyst to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a cleaning device for regenerating flue gas denitrification catalysts, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cleaning device for regenerating flue gas denitrification catalyst, comprising a cleaning tank body, a positioning support column, and an isolation porous high-pressure air blowing cleaning mechanism, wherein the isolation porous high-pressure air blowing cleaning mechanism is provided on the inner side of the cleaning tank body.

[0007] The cleaning tank body has a positioning support column on its inner side, a support isolation component on one side of the positioning support column, and a ventilation-type high-pressure air blowing component on its inner side.

[0008] Preferably, the supporting isolation component includes a positioning bracket, an isolation steel frame, and a fixed crossbar. The positioning bracket is fixedly connected to the inner side of the main body of the cleaning pool, the isolation steel frame is welded and fixed to the inner side of the positioning bracket, and the fixed crossbar is welded and fixed to the middle of the isolation steel frame.

[0009] Preferably, the ventilated high-pressure air blowing assembly includes a through main pipe, connecting bolts, a fixed connecting crossbar, a hollow air blowing pipe, and an air blowing port. A through main pipe is connected to a sealed pipe on one side of the main body of the cleaning tank. The through main pipe is connected to the fixed connecting crossbar via connecting bolts. A hollow air blowing pipe is connected to a pipe on one side of the fixed connecting crossbar. An air blowing port is provided on the surface of the hollow air blowing pipe.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] By incorporating an isolated, multi-hole high-pressure air-blowing cleaning mechanism, during use, [the system]... Figure 3 It can be seen that multiple ventilated high-pressure air blowing components are evenly arranged inside the main body of the cleaning tank, and multiple air blowing ports are evenly opened on the surface of the hollow air blowing pipes inside. After the cleaning liquid is filled into the main body of the cleaning tank, it is blown out by the high-pressure air blowing action of the ventilated high-pressure air blowing components at the lower end. Figure 2 It is known that the ventilated high-pressure air blowing assembly blows air simultaneously from both ends of the high-pressure air blowing pipe, ensuring that the air blowing volume of each hollow air blowing pipe surface is consistent. This causes the cleaning fluid inside to bubble rapidly, enabling efficient cleaning of the porous denitration catalyst placed on the upper part of the support and isolation assembly. Driven by the ventilated high-pressure air blowing assembly, the cleaning fluid rapidly cleans the nitrifying agent inside the porous denitration catalyst through rapid bubbling, increasing the cleaning efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the overall appearance and top structure of this utility model;

[0014] Figure 3 For the present utility model Figure 1 A magnified structural diagram at point A;

[0015] The following are the labels in the diagram: 1. Main body of the cleaning tank; 2. Positioning support column; 3. Isolation multi-hole high-pressure air blowing cleaning mechanism; 31. Support isolation component; 311. Positioning bracket; 312. Isolation steel frame; 313. Fixed crossbar; 32. Ventilation high-pressure air blowing component; 321. Through main pipe; 322. Connecting bolt; 323. Fixed connecting crossbar; 324. Hollow air pipe; 325. Air inlet. Detailed Implementation

[0016] 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 protection scope of the present utility model.

[0017] Please see Figure 1-3As shown, this utility model provides a technical solution: a cleaning device for regenerating flue gas denitrification catalyst, including a cleaning tank body 1, a positioning support column 2 and an isolation porous high-pressure air blowing cleaning mechanism 3, wherein the isolation porous high-pressure air blowing cleaning mechanism 3 is provided on the inner side of the cleaning tank body 1.

[0018] A positioning support column 2 is provided on the inner side of the main body 1 of the cleaning tank, and a support isolation component 31 is provided on one side of the positioning support column 2. A ventilation-type high-pressure air blowing component 32 is provided on the inner side of the main body 1 of the cleaning tank.

[0019] Furthermore, the supporting isolation component 31 includes a positioning bracket 311, an isolation steel frame 312, and a fixed crossbar 313. The positioning bracket 311 is fixedly connected to the inner side of the cleaning tank body 1, and the isolation steel frame 312 is welded and fixed to the inner side of the positioning bracket 311. The fixed crossbar 313 is welded and fixed to the middle of the isolation steel frame 312. In use, an isolation net can be laid on the surface of the isolation steel frame 312 and the fixed crossbar 313, and the denitrification catalyst to be cleaned can be placed on the surface of the isolation net. The cleaning operation of the denitrification catalyst can be carried out by pouring liquid into the cleaning tank body 1 to a height above the denitrification catalyst, in conjunction with the ventilation high-pressure blowing component 32 at the lower end.

[0020] Furthermore, the ventilated high-pressure air blowing assembly 32 includes a through main pipe 321, connecting bolts 322, a fixed connecting crossbar 323, a hollow air blowing pipe 324, and air inlets 325. A sealed pipe on one side of the cleaning tank body 1 is connected to the through main pipe 321. The through main pipe 321 is connected to the fixed connecting crossbar 323 via the connecting bolts 322. A pipe on one side of the fixed connecting crossbar 323 is connected to the hollow air blowing pipe 324. Air inlets 325 are formed on the surface of the hollow air blowing pipe 324. Multiple air inlets 325 are evenly distributed on the surface of the internal hollow air blowing pipe 324. After the cleaning liquid is filled into the cleaning tank body 1, it is blown out by the high-pressure air blowing action of the ventilated high-pressure air blowing assembly 32 at the lower end. Figure 2 It is known that the ventilation-type high-pressure air blowing assembly 32 blows air simultaneously from the through pipes 321 at both ends, so that the air blowing volume of each hollow air blowing pipe 324 pipe surface air blowing port 325 is consistent, which will cause the internal cleaning fluid to bubble rapidly, so as to carry out efficient cleaning of the porous denitrification catalyst placed on the upper end of the support isolation assembly 31.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cleaning device for regenerating flue gas denitrification catalyst, comprising a cleaning tank body (1), a positioning support column (2), and an isolation porous high-pressure air blowing cleaning mechanism (3), characterized in that: The inner side of the main body (1) of the cleaning tank is provided with an isolation multi-hole high-pressure air blowing cleaning mechanism (3). The cleaning tank body (1) is provided with a positioning support (2) on the inner side, and a support isolation component (31) is provided on one side of the positioning support (2). The cleaning tank body (1) is provided with a ventilation high-pressure air blowing component (32).

2. The cleaning device for regenerating flue gas denitrification catalyst according to claim 1, characterized in that, The supporting isolation component (31) includes a positioning bracket (311), an isolation steel frame (312), and a fixed crossbar (313). The positioning bracket (311) is fixedly connected to the inner side of the main body (1) of the cleaning pool. The isolation steel frame (312) is welded and fixed to the inner side of the positioning bracket (311). The fixed crossbar (313) is welded and fixed to the middle of the isolation steel frame (312).

3. The cleaning device for regenerating flue gas denitrification catalyst according to claim 1, characterized in that, The ventilation-type high-pressure air blowing assembly (32) includes a through pipe (321), connecting bolts (322), a fixed connecting crossbar (323), a hollow air blowing pipe (324), and an air blowing port (325). The through pipe (321) is connected to a sealed pipe on one side of the main body of the cleaning pool (1). The through pipe (321) is connected to the fixed connecting crossbar (323) via the connecting bolts (322). The hollow air blowing pipe (324) is connected to a pipe on one side of the fixed connecting crossbar (323). An air blowing port (325) is provided on the surface of the hollow air blowing pipe (324).