A denitration and dust removal integrated testing device

Abstract

The utility model discloses a kind of denitration dust removal integration test device, it is related to test device technical field, including equipment support frame, the filter processing tank being set to the inside of equipment support frame, the bottom of the filter processing tank is equipped with mounting hole in both ends, the inside movable joint of the filter processing tank has double pass detection assembly, the bottom of the double pass detection assembly is movably connected with ventilation pressure-bearing cover and ventilation pressure cover in both ends respectively, the filter processing tank is composed of half arc tank body one and half arc tank body two, the one end of half arc tank body one is rotatably connected with the one end of half arc tank body two.The utility model is by using the filter processing tank structure of openable and closable, simplifies the replacement and maintenance process of double pass detection assembly, improves the operation convenience;Setting classification gas supply component and gas mixing tank, can flexibly adjust simulated flue gas composition, enhance the flexibility of device;Equipped with analysis test component real-time detection gas composition and pressure drop, ensure the accuracy of test result.

Description

Technical Field

[0001] This utility model relates to the field of testing device technology, specifically to an integrated testing device for denitrification and dust removal. Background Technology

[0002] In industrial production, especially during the power generation of thermal power units, coal, as the primary fuel, produces large amounts of flue gas containing nitrogen oxides. Nitrogen oxides react with water vapor in the air to form nitric acid, which, through atmospheric circulation, forms acid rain, causing serious harm to the water cycle, forest ecosystems, and human health. Simultaneously, nitrogen dioxide, a component of nitrogen oxides, reacts with organic matter in the atmosphere under ultraviolet radiation to generate new pollutants, damaging the ozone layer, exacerbating the greenhouse effect, and producing photochemical smog, directly harming human health. Furthermore, nitrogen oxides are a significant source of PM2.5 in the atmosphere; in densely populated developed areas, PM2.5 pollution severely impacts people's lives, work, and studies. To control nitrogen oxide emissions, denitrification technology has been widely applied, with catalysts playing a crucial role in the process. Currently, the widely used V2O5-WO3 / TiO2-based SCR catalysts are increasingly unable to adapt to new denitrification environments and meet new performance requirements, making the exploration of novel flue gas denitrification catalysts an urgent priority. However, existing equipment for testing the performance of denitrification catalysts has many problems: the system is complex, the connections between components are cumbersome, and the operation is inconvenient; it lacks flexibility, making it difficult to quickly adjust test conditions according to different experimental needs, such as simulating flue gas composition and temperature; the test results have large deviations, and the evaluation of catalyst performance is inaccurate due to uneven gas mixing and untimely detection; and it lacks safety, with some equipment posing a risk of leakage during gas transportation and processing, affecting the safety of experimental personnel and the experimental environment. Utility Model Content

[0003] To address the problems mentioned in the background art, the purpose of this utility model is to provide an integrated testing device for denitrification and dust removal. By adopting an openable and closable filter tank structure, the replacement and maintenance process of the dual-channel detection components is simplified, improving operational convenience. The inclusion of a categorized gas supply component and a gas mixing tank allows for flexible adjustment of the simulated flue gas composition, enhancing the device's flexibility. Equipped with analytical testing components to monitor gas composition and pressure drop in real time ensures the accuracy of test results. Reliable connections between components, such as bolted fixing lugs and sealed gas pipeline connections, reduce the risk of gas leakage and improve the device's safety.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an integrated testing device for denitrification and dust removal, comprising an equipment support frame; The filter treatment tank is located inside the equipment support frame. The bottom of the filter treatment tank has mounting holes at both ends. A dual-channel detection assembly is movably connected inside the filter treatment tank. The bottom of the dual-channel detection assembly is movably connected to a ventilated pressure hood and a ventilated pressure application hood through sealing docks at both ends. The dual-channel detection assembly includes a filter media passage pipe and a filter bag passage pipe. The filter media passage pipe contains filter media, and the filter bag passage pipe contains a filter bag. The filtration tank consists of a semi-arc tank body one and a semi-arc tank body two. One end of the semi-arc tank body one is rotatably connected to one end of the semi-arc tank body two. The other ends of the semi-arc tank body one and the semi-arc tank body two are fixedly connected to a fixing lug. An air inlet pipe is fixedly connected to the outer wall of the semi-arc tank body one. An air outlet pipe is fixedly connected to the bottom end of the ventilated pressure hood. The air inlet pipe is connected to the ventilated pressure hood. A pressure-fixing assembly is installed above the filter treatment tank. The pressure-fixing assembly is used to pressurize the vent pressure hood to fix the dual-channel detection assembly. An analysis and testing component and a classification gas supply component are installed on one side of the filtration tank. The classification gas supply component is used to supply gas to the inside of the filtration tank.

[0005] As a preferred embodiment of this utility model, the first semi-circular tank is fixedly connected to the inner wall of the equipment support frame via a tank bracket, the two sets of fixing ears are detachably fixedly connected by bolts, and a handle is fixedly connected to the outer wall of the second semi-circular tank.

[0006] As a preferred embodiment of this utility model, a gas mixing tank is fixedly connected to one end of the air inlet pipe away from the semi-arc tank body, and a classified gas delivery pipe is fixedly connected to the air inlet end of the gas mixing tank through a pipe. The classified gas delivery pipe is fixedly connected to the outer wall of the classified gas supply component.

[0007] As a preferred embodiment of this invention, an air intake detection tube is fixedly connected to the outer wall of the air intake pipe, and an air outlet detection tube is fixedly connected to the outer wall of the air outlet pipe. Both the air intake detection tube and the air outlet detection tube are fixedly connected to the air intake end of the analysis and testing component.

[0008] As a preferred embodiment of this utility model, the pressure fixing assembly includes a buffer spring rod, which consists of a spring and a vertical rod. The bottom end of the vertical rod is fixedly connected to the top of the ventilated pressure cover via a horizontal plate. The spring is sleeved on the outer wall of the vertical rod. A lower pressure plate movably passes through the top of the vertical rod. An electric push rod is fixedly connected to the center of the upper surface of the lower pressure plate.

[0009] In a preferred embodiment of this invention, vertical sliding rods are fixedly connected to the top of both ends of the lower pressure plate, and a fixed horizontal plate frame is movably sleeved on the outer wall of the vertical sliding rod near the top end. The housing of the electric push rod is fixedly connected to the inner wall of the fixed horizontal plate frame.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The filter treatment tank of this utility model adopts an openable structure of a semi-arc tank body one and a semi-arc tank body two, which is connected by bolts with fixing ears, making it easy to open and close quickly, facilitating the installation, replacement and maintenance of the dual-channel detection components, and improving the ease of operation of the device.

[0011] 2. The pressure fixing component of this utility model uses an electric push rod to push the lower pressure plate, and uses the spring force of the buffer spring rod to apply pressure to the ventilated pressure cover, thereby achieving a stable fixation of the dual-channel detection component. Moreover, the fixing force can be adjusted by the electric push rod, which can adapt to the fixing requirements of dual-channel detection components of different specifications, thus enhancing the versatility of the device.

[0012] 3. The gas supply component of this utility model can provide a variety of gases, which are mixed in a gas mixing tank to form simulated flue gas with different compositions. It can simulate a variety of actual flue gas environments, meet the testing requirements of the denitrification and dust removal performance of the dual-channel detection component under different experimental conditions, and improve the comprehensiveness and accuracy of the test.

[0013] 4. The analytical testing component of this utility model can detect the gas composition and filtration pressure drop before and after the reaction in real time through the inlet and outlet gas detection tubes. It can quickly and accurately obtain the performance parameters of the dual-channel detection component, provide reliable data support for evaluating the performance of the dual-channel detection component, and improve testing efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the left-side structure of this utility model; Figure 3 This is a schematic diagram of the pressure-fixing component structure of this utility model; Figure 4 This is a schematic diagram of the filter treatment tank structure of this utility model.

[0015] In the diagram: 1. Equipment support frame; 2. Filtration tank; 3. Pressure fixing assembly; 4. Analysis and testing assembly; 5. Classified gas supply assembly; 6. Gas mixing tank; 7. Inlet pipe; 8. Classified gas supply pipe; 9. Inlet detection pipe; 10. Outlet detection pipe; 11. Outlet pipe; 12. Buffer spring rod; 13. Vertical slide bar; 14. Electric push rod; 15. Fixed horizontal plate frame; 16. Semi-arc tank body one; 17. Semi-arc tank body two; 18. Fixing lug; 19. Dual-channel detection assembly; 20. Ventilation and pressure hood; 21. Ventilation and pressure bearing hood; 22. Lower pressure plate; 23. Filter media pipe; 24. Filter bag pipe; 25. Sealing docking seat. Detailed Implementation

[0016] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0018] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0019] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth. Example

[0020] Reference Figure 1-4 This is the first embodiment of the present invention, which provides an integrated testing device for denitrification and dust removal, including a device support frame 1; The filter treatment tank 2 is located inside the equipment support frame 1. The bottom of the filter treatment tank 2 has mounting holes at both ends. The filter treatment tank 2 is movably connected to a dual-channel detection assembly 19. The bottom of the dual-channel detection assembly 19 is movably connected to a ventilated pressure hood 21 and a ventilated pressure application hood 20 at both ends through a sealing docking seat 25. The dual-channel detection assembly 19 includes a filter media passage pipe 23 and a filter bag passage pipe 24. The filter media passage pipe 23 is filled with filter media, and the filter bag passage pipe 24 is filled with a filter bag. The filter treatment tank 2 is composed of a semi-arc tank body 16 and a semi-arc tank body 27. One end of the semi-arc tank body 16 is rotatably connected to one end of the semi-arc tank body 27. The other ends of the semi-arc tank body 16 and the semi-arc tank body 27 are fixedly connected to a fixing lug 18. An air inlet pipe 7 is fixedly connected to the outer wall of the semi-arc tank body 16. An air outlet pipe 11 is fixedly connected to the bottom end of the ventilation pressure hood 21. The air inlet pipe 7 is connected to the ventilation pressure hood 20. The pressure fixing assembly 3 is installed above the filter treatment tank 2. The pressure fixing assembly 3 is used to apply pressure to the vent pressure hood 20 so as to fix the dual-channel detection assembly 19. The analysis and testing component 4 and the classification gas supply component 5 are located on one side of the filter treatment tank 2. The classification gas supply component 5 is used to supply gas to the inside of the filter treatment tank 2.

[0021] Specifically, by mixing different components of simulated flue gas in the gas mixing tank 6, various real flue gas environments can be simulated, meeting the testing requirements of the dual-channel detection component 19 for denitrification and dust removal performance under different experimental conditions, thus improving the comprehensiveness and accuracy of the test. Example

[0022] The second embodiment of this utility model provides a technical solution: a semi-circular tank 16 is fixedly connected to the inner wall of the equipment support frame 1 by a tank bracket, two sets of fixing ears 18 are detachably fixedly connected by bolts, and a handle is fixedly connected to the outer wall of the semi-circular tank 17.

[0023] The end of the air inlet pipe 7 away from the semi-arc tank body 16 is fixedly connected to a gas mixing tank 6. The air inlet end of the gas mixing tank 6 is fixedly connected to a classified air supply pipe 8 through a pipe. The classified air supply pipe 8 is fixedly connected to the outer wall of the classified air supply component 5.

[0024] Specifically, the filter treatment tank 2 adopts an openable structure with a semi-arc tank body 16 and a semi-arc tank body 17, which is connected by bolts with fixing ears 18, making it easy to open and close quickly, facilitating the installation, replacement and maintenance of the dual-channel detection component 19, and improving the ease of operation of the device. Example

[0025] The third embodiment of this utility model provides a technical solution: an air intake detection tube 9 is fixedly connected to the outer wall of the air intake pipe 7, and an air outlet detection tube 10 is fixedly connected to the outer wall of the air outlet pipe 11. Both the air intake detection tube 9 and the air outlet detection tube 10 are fixedly connected to the air intake end of the analysis and testing component 4.

[0026] The pressure fixing assembly 3 includes a buffer spring rod 12, which consists of a spring and a vertical rod. The bottom end of the vertical rod is fixedly connected to the top of the ventilated pressure cover 20 via a horizontal plate. The spring is sleeved on the outer wall of the vertical rod. A lower pressure plate 22 is movably passed through the top of the vertical rod. An electric push rod 14 is fixedly connected to the center of the upper surface of the lower pressure plate 22. Vertical slide rods 13 are fixedly connected to the top of both ends of the lower pressure plate 22. A fixed horizontal plate frame 15 is movably sleeved on the outer wall of the vertical slide rod 13 near the top end. The housing of the electric push rod 14 is fixedly connected to the inner wall of the fixed horizontal plate frame 15.

[0027] Specifically, boiler flue gas is used as the test gas in the testing device, ensuring that the test flue gas contains substances that influence the actual physicochemical and process characteristics of flue gas. This ensures that the catalyst in the integrated denitrification and dust removal filter bag reacts with the test flue gas, providing accurate and reliable experimental data for the study of the operation of existing catalysts under different temperatures and flue gas compositions. The denitrification process characteristics of the integrated denitrification and dust removal filter bag can be evaluated under actual flue gas operating conditions. Furthermore, the resistance of the denitrification catalyst to toxic substances such as SO2, H2O, alkali metals, and heavy metals, as well as its mechanical strength and thermal stability, can also be studied. Example

[0028] The fourth embodiment of this utility model provides a technical solution: the connections between the inlet pipe 7 and the gas mixing tank 6, the gas mixing tank 6 and the classified gas delivery pipe 8, the inlet detection pipe 9 and the inlet pipe 7, the outlet detection pipe 10 and the outlet pipe 11, and the inlet detection pipe 9 and the outlet detection pipe 10 and the analysis and testing component 4 do not specify specific connecting components, but use flange connections equipped with sealing gaskets (such as PTFE gaskets) to ensure the sealing of the connections and prevent gas leakage. The exhaust gas treatment component includes an absorption tower, which is filled with an absorbent liquid (such as ammonia) to treat harmful components in the exhaust gas and prevent environmental pollution.

[0029] The differential pressure gauge is connected to the inlet detection tube 9 and the outlet detection tube 10 at its two ends to accurately measure the pressure difference before and after filtration.

[0030] A heating jacket is installed inside the filtration tank 2. The heating jacket is connected to a temperature controller to adjust and control the temperature inside the filtration tank 2 to meet the testing requirements of different evaluation temperatures.

[0031] The dual-channel detection component 19 can be replaced with sheet-like nonwoven filter media or filter bags as needed, and the installation structure of both can also be replaced as needed to adapt to the ventilation pressure hood 20.

[0032] The equipment support frame 1 provides support for the entire device. The filtration tank 2 consists of a semi-circular tank body 16 and a semi-circular tank body 17. The semi-circular tank body 16 is fixed to the inner wall of the equipment support frame 1 by a tank bracket. One end of the two is rotatably connected, and the other end is detachably connected by a fixing lug 18 and bolts. When installing the dual-channel detection assembly 19, loosen the bolts on the fixing lug 18, open the semi-circular tank body 17, place the dual-channel detection assembly 19 on the ventilated pressure hood 21, and insert the filter media pipe 23 and the filter bag pipe 24 into the ventilated pressure hood 21 through the sealing dock 25. Then, connect the ventilated pressure hood 20 to the filter media pipe 23 and the filter bag pipe 24 through the sealing dock 25 to seal them. Finally, close the semi-circular tank body 17 and lock the fixing lug 18 with bolts. The pressure fixing assembly 3 is used to fix the dual-channel detection assembly 19. Its fixing crossbeam 15 is fixed, and the housing of the electric push rod 14 is connected to the inner wall of the fixing crossbeam 15. Activating the electric push rod 14 can push the lower pressure plate 22 downward. The vertical slide rods 13 at both ends of the lower pressure plate 22 slide along the fixing crossbeam 15 to ensure stable downward movement. The downward movement of the lower pressure plate 22 compresses the spring of the buffer spring rod 12. The spring force is transmitted to the ventilated pressure cover 20 through the vertical rod and the crossbeam, which, together with the ventilated pressure bearing cover 21, fixes the dual-channel detection assembly 19. The gas separation supply assembly 5 delivers gas to the gas mixing tank 6 via the gas separation supply pipe 8. The gas separation supply pipe 8 includes pipes for delivering NO, O2, NH3, SO2, and N2, simulating flue gas composed of a specific volume fraction, with a total gas volume of 10.6 L·min⁻¹ and containing 670 × 10⁻ 6 %NO、670×10⁻ 6 %NH3, 5%O2, N2 balance, 300×10⁻ 6 % SO2, 15% (φ) water vapor (SO2 and water vapor can be adjusted according to experimental requirements). After the gas is mixed in the gas mixing tank 6, it enters the filtration tank 2 through the gas inlet pipe 7. The filter media passage 23 is filled with filter media, which can be clamped in the flue gas channel using two clamps. The flue gas passes through the filter media, allowing the denitrification efficiency of the integrated filter media to be calculated, facilitating testing of small samples. The filter bag passage 24 contains a filter bag for testing the comprehensive denitrification and dust removal performance of a single dust collector filter. In this channel, the entire filter bag is installed, and a dust removal device is located above the channel to simulate the actual working conditions of the filter bag in practical applications, completing pilot-scale testing. The direction of the flue gas is controlled by valves at the flue gas inlet in both test channels.

[0033] In summary, the filter treatment tank 2 adopts an openable structure with a semi-arc tank body 16 and a semi-arc tank body 17, which is connected by bolts with fixing ears 18, making it easy to open and close quickly, facilitating the installation, replacement and maintenance of the dual-channel detection component 19, and improving the ease of operation of the device.

[0034] The lower pressure plate 22 is pushed by the electric push rod 14, and the spring force of the buffer spring rod 12 is used to apply pressure to the ventilated pressure cover 20, so as to achieve a stable fixation of the dual-channel detection component 19. The fixing force can be adjusted by the electric push rod 14, which can adapt to the fixing requirements of different specifications of dual-channel detection components 19, thus enhancing the versatility of the device.

[0035] The analytical testing components, classification gas supply components, and electric actuators used in this application can be additionally equipped with protective measures of common knowledge in this technical field under different usage environments, including but not limited to the following methods, such as protective covers for equipment protection, dustproof nets for equipment dust prevention, and sealing components or waterproof coatings for equipment waterproofing, which are commonly used by those skilled in the art.

[0036] It should be noted that the analysis and testing components, the classification and air supply components, and the electric actuators are existing devices or equipment, or devices or equipment that can be implemented with existing technology. The power supply, connection method, usage method, power source, fixing method, installation method, control method, etc. of the devices, as well as the materials of each accessory and the selection of various parameters, are all common knowledge to those skilled in the art, and therefore will not be described in detail in this application document.

[0037] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​such as temperature, pressure, etc., installation arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of this utility model. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0038] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0039] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An integrated testing device for denitrification and dust removal, characterized in that: Including equipment support frame (1); The filter treatment tank (2) is located inside the equipment support frame (1). The filter treatment tank (2) has mounting holes at both ends of its bottom. The filter treatment tank (2) is movably connected to a dual-channel detection assembly (19). The bottom ends of the dual-channel detection assembly (19) are movably connected to a ventilated pressure hood (21) and a ventilated pressure hood (20) respectively via a sealing docking seat (25). The dual-channel detection assembly (19) includes a filter media pipe (23) and a filter bag pipe (24). The filter media pipe (23) is filled with filter media, and the filter bag pipe (24) is filled with a filter bag. The filter treatment tank (2) is composed of a semi-arc tank body one (16) and a semi-arc tank body two (17). One end of the semi-arc tank body one (16) is rotatably connected to one end of the semi-arc tank body two (17). The other ends of the semi-arc tank body one (16) and the semi-arc tank body two (17) are fixedly connected to a fixing ear (18). An air inlet pipe (7) is fixedly connected to the outer wall of the semi-arc tank body one (16). An air outlet pipe (11) is fixedly connected to the bottom end of the ventilation pressure hood (21). The air inlet pipe (7) is connected to the ventilation pressure hood (20). A pressure fixing assembly (3) is provided above the filter treatment tank (2), the pressure fixing assembly (3) is used to pressurize the vent pressure hood (20) to fix the dual-channel detection assembly (19); An analysis and testing component (4) and a classification gas supply component (5) are installed on one side of the filter treatment tank (2), the classification gas supply component (5) being used to supply gas to the inside of the filter treatment tank (2).

2. The integrated testing device for denitrification and dust removal according to claim 1, characterized in that: The first semi-circular tank (16) is fixedly connected to the inner wall of the equipment support frame (1) by a tank bracket, and the two sets of fixing ears (18) are fixedly connected by bolts. The outer wall of the second semi-circular tank (17) is fixedly connected with a handle.

3. The integrated testing device for denitrification and dust removal according to claim 1, characterized in that: The end of the air inlet pipe (7) away from the semi-arc tank body (16) is fixedly connected to a gas mixing tank (6), and the air inlet end of the gas mixing tank (6) is fixedly connected to a classified air supply pipe (8) through a pipe. The classified air supply pipe (8) is fixedly connected to the outer wall of the classified air supply component (5).

4. The integrated testing device for denitrification and dust removal according to claim 1, characterized in that: An air intake detection tube (9) is fixedly connected to the outer wall of the air intake pipe (7), and an air outlet detection tube (10) is fixedly connected to the outer wall of the air outlet pipe (11). Both the air intake detection tube (9) and the air outlet detection tube (10) are fixedly connected to the air intake end of the analysis and testing component (4).

5. The integrated testing device for denitrification and dust removal according to claim 1, characterized in that: The pressure fixing assembly (3) includes a buffer spring rod (12), which is composed of a spring and a vertical rod. The bottom end of the vertical rod is fixedly connected to the top of the ventilated pressure cover (20) through a horizontal plate. The spring is sleeved on the outer wall of the vertical rod. The top of the vertical rod is movably connected through a lower pressure plate (22). An electric push rod (14) is fixedly connected at the center of the upper surface of the lower pressure plate (22).

6. The integrated testing device for denitrification and dust removal according to claim 5, characterized in that: The lower pressure plate (22) is fixedly connected to the top of both ends with vertical slide rods (13), and the outer wall of the vertical slide rod (13) near the top is movably sleeved with a fixed horizontal plate frame (15). The housing of the electric push rod (14) is fixedly connected to the inner wall of the fixed horizontal plate frame (15).

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