Anti-abrasion device for denitration catalyst

Abstract

The utility model relates to the technical field of catalyst abrasion prevention, in particular to a denitration catalyst abrasion prevention device which comprises a device shell, the device shell comprises a filling bin, the overlooking section of the filling bin is square, an air outlet bin and an air inlet bin are assembled at the upper end and the lower end of the filling bin, and the overlooking sections of the air outlet bin and the air inlet bin are round. Butt joint pipes are integrally arranged at the upper end of the air outlet bin and the lower end of the air inlet bin, a filter cover and an air guide cover are arranged on the lower portion in the filling bin, the filter cover and the air guide cover are sequentially assembled on the lower portion in the filling bin in a threaded mode, and a blocking door is assembled on the right side of the filling bin. The device is convenient to disassemble, assemble and guide and collect small particles in gas according to requirements during use, so that the subsequent operation and use are more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of catalyst anti-wear, in particular to a denitration catalyst anti-wear device. Background Technique

[0002] The denitration catalyst is mainly used for denitration treatment of flue gas. After the flue gas rushes into the catalyst, due to the presence of solid small particle impurities in the flue gas, it will impact and wear the inner wall of the honeycomb denitration catalyst, reducing its service life. Therefore, when assembling and using, a denitration catalyst anti-wear device is required;

[0003] In this regard, Chinese Patent Application No.: CN202121312120.7 discloses a honeycomb denitration catalyst anti-wear device, belonging to the technical field of flue gas purification. It includes a honeycomb catalyst main body, the front and back surfaces of the honeycomb catalyst main body are respectively fixedly connected to the opposite surfaces of two first connection plates, and the opposite back surfaces of the two first connection plates are both lapped with second connection plates. For this honeycomb denitration catalyst anti-wear device, by setting an air guide pipe, a flow dividing plate, a rotating diffuser plate, a rotating fan blade assembly and an air inlet hood, controlling the rapid rotation of the rotating fan blade assembly, a certain pressure difference is formed at both ends of the honeycomb catalyst main body, so that the flue gas inside the honeycomb catalyst main body can pass through quickly and stably. And through the deceleration and protection of the rotating diffuser plate and the air guide pipe, the impact of the flue gas on the ends of the honeycomb catalyst main body can be reduced, and the wear of the honeycomb catalyst main body can be reduced to a certain extent, making the device have better protection performance;

[0004] However, the existing device is inconvenient to disassemble, assemble and guide the collection of small particles inside the gas according to needs during use, which affects the subsequent use efficiency;

[0005] Therefore, in order to solve the above problems, a denitration catalyst anti-wear device is proposed. Content of the Utility Model

[0006] The purpose of the utility model is to provide a denitration catalyst anti-wear device to solve the problem that the existing device is inconvenient to disassemble, assemble and guide the collection of small particles inside the gas according to needs during use, which affects the subsequent use efficiency proposed in the above background technique.

[0007] To achieve the above purpose, the utility model provides the following technical solution: A denitration catalyst anti-wear device includes a device housing. The device housing consists of a loading bin, and the top view cross-section of the loading bin is square. The upper and lower ends of the loading bin are equipped with an air outlet bin and an air inlet bin, and the top view cross-sections of the air outlet bin and the air inlet bin are circular. Docking through pipes are integrally provided at the upper end of the air outlet bin and the lower end of the air inlet bin. A filter cover and a gas guide cover are arranged at the lower part inside the loading bin, and the filter cover and the gas guide cover are sequentially threadedly assembled inside the lower part of the loading bin. A sealing door is assembled on the right side of the loading bin.

[0008] Preferably, an assembly internal screw groove corresponding to the filter cover and the air guide cover is provided on the inner wall of the lower part of the loading bin, and docking screw grooves corresponding to the assembly internal screw groove are provided on the outer walls of the filter cover and the air guide cover. An upper net cover and a lower net cover are fixedly arranged at the inner bottom of the filter cover, and the upper net cover is located above the lower net cover. Air guide holes are uniformly formed at the bottom of the air guide cover, and a hollow tube communicating with the air guide holes is integrally arranged inside the air guide cover.

[0009] Preferably, the outer wall of the hollow tube is in a slender conical shape, and a collection cavity is arranged on the inner side of the upper part of the air guide cover.

[0010] Preferably, the upper net cover and the lower net cover are arranged in a convex arc shape. The inner diameter of the mesh holes of the upper net cover is smaller than that of the mesh holes of the lower net cover, and the mesh holes of the upper net cover and the mesh holes of the lower net cover are arranged in a staggered up-and-down manner.

[0011] Preferably, a lower retaining net and an upper retaining net are respectively assembled on the upper and lower parts of the loading bin. The lower retaining net is assembled inside the lower part of the loading bin and is located above the filter cover. An assembly groove corresponding to the lower retaining net is provided on the inner wall of the lower part of the loading bin, and a frosted pad is glued to the inner wall of the assembly groove. The upper retaining net is inserted and assembled on the upper part of the loading bin, and a limiting abutting strip corresponding to the upper retaining net is integrally arranged on the inner wall of the plugging door. An operation window corresponding to the plugging door is provided on the right side wall of the loading bin, and a sealing strip is filled in the inner wall of the operation window. Protective pads are glued to the inner walls of the loading bin and the plugging door.

[0012] Preferably, an air inlet inner tube is arranged inside the air inlet bin. The air inlet inner tube is fixedly arranged on the inner wall of the bottom of the air inlet bin and is communicated with the docking through pipe at the bottom of the air inlet bin. Ventilation holes are uniformly formed on the side wall of the air inlet inner tube, and the ventilation holes are arranged in an inclined shape from the inside to the outside.

[0013] Preferably, assembly grooves corresponding to the air inlet bin and the air outlet bin are formed at both the upper and lower ends of the loading bin, and groove gaskets are glued to the inner walls of the assembly grooves. An assembly ring is formed on the outer side of the outer end of the docking through pipe, and a protruding docking plug is integrally arranged at the outer end of the docking through pipe. Docking threads are formed on the outer wall of the docking plug.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model facilitates disassembling, assembling, guiding and collecting small particles inside the gas according to needs during use, making subsequent operations and use more convenient;

[0015] 1. By arranging a loading bin, the present utility model is convenient for docking flue gas under the assembly of the air inlet bin and the air outlet bin. Through the plugging door, it is convenient to load the denitration catalyst inside the loading bin. At the same time, it is also convenient to disassemble and clean the air inlet bin and the air outlet bin according to the use needs, making the use more convenient. Through this design, the convenience and practicability of the denitration catalyst anti-wear device are improved.

[0016] 2. The utility model is provided with a filter cover and a gas guide cover, which are convenient for guiding the flue gas and filtering and collecting the flue gas, making the operation and use more convenient, facilitating the filtering of small solid particles and sundries in the flue gas, reducing and avoiding the impact on the inner wall of the denitration catalyst, and making the use more convenient. Through this design, the convenience and practicability of the denitration catalyst anti-wear device are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a front sectional view of the structure of the utility model;

[0018] Figure 2 is a bottom view of the partial structure of the gas guide cover of the utility model;

[0019] Figure 3 For the utility model Figure 1 is an enlarged view of the structure at A in the figure;

[0020] Figure 4 For the utility model Figure 1 is an enlarged view of the structure at B in the figure;

[0021] Figure 5 For the utility model Figure 1 is an enlarged view of the structure at C in the figure;

[0022] In the figure: 100, device housing; 110, loading bin; 111, plugging door; 112, protective pad; 113, operation window; 114, sealing strip; 120, air inlet bin; 121, assembly groove; 122, groove gasket; 130, air outlet bin; 140, docking through pipe; 141, assembly ring; 142, docking plug; 143, docking thread; 150, filter cover; 151, assembly inner thread groove; 152, upper mesh cover; 153, lower mesh cover; 160, gas guide cover; 161, docking thread groove; 162, gas guide hole; 163, hollow pipe; 164, collection cavity; 170, lower retaining net; 171, assembly groove; 172, frosted pad; 180, upper retaining net; 181, limiting abutting strip; 190, air inlet inner pipe; 191, ventilation hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1-5 , an embodiment provided by the present utility model:

[0025] A denitration catalyst anti-wear device, comprising a device housing 100. The device housing 100 consists of a loading bin 110, and the top view cross-section of the loading bin 110 is square. An air outlet bin 130 and an air inlet bin 120 are assembled at the upper and lower ends of the loading bin 110 respectively, and the top view cross-sections of the air outlet bin 130 and the air inlet bin 120 are circular. Docking through pipes 140 are integrally provided at the upper end of the air outlet bin 130 and the lower end of the air inlet bin 120. A filter cover 150 and a gas guide cover 160 are arranged at the lower part inside the loading bin 110, and the filter cover 150 and the gas guide cover 160 are sequentially threadedly assembled below the inside of the loading bin 110. A sealing door 111 is assembled on the right side of the loading bin 110;

[0026] Further, assembly internal screw grooves 151 corresponding to the filter cover 150 and the gas guide cover 160 are provided on the inner wall of the lower part of the loading bin 110, and docking screw grooves 161 corresponding to the assembly internal screw grooves 151 are provided on the outer walls of the filter cover 150 and the gas guide cover 160. An upper mesh cover 152 and a lower mesh cover 153 are fixedly provided at the inner bottom of the filter cover 150, and the upper mesh cover 152 is located above the lower mesh cover 153. Gas guide holes 162 are evenly provided at the bottom of the gas guide cover 160, and a hollow pipe 163 communicating with the gas guide holes 162 is integrally provided inside the gas guide cover 160. Through this design, it is convenient to assemble and use the filter cover 150 and the gas guide cover 160, making subsequent operations more convenient;

[0027] Further, the outer wall of the hollow pipe 163 is in the shape of a slender cone, and a collection cavity 164 is provided inside the upper part of the gas guide cover 160. Through this design, it is convenient to guide the flue gas and collect the falling solid small particles and sundries after filtration;

[0028] Further, the upper mesh cover 152 and the lower mesh cover 153 are provided in a convex arc shape. The inner diameter of the mesh holes of the upper mesh cover 152 is smaller than that of the lower mesh cover 153, and the mesh holes of the upper mesh cover 152 and the lower mesh cover 153 are arranged in a staggered up-and-down manner. Through this design, it is convenient to filter and block the flue gas, making the use more convenient, and at the same time, it is also convenient to assist in collecting the falling flue gas;

[0029] Furthermore, a lower retaining net 170 and an upper retaining net 180 are respectively assembled above and below the loading bin 110. The lower retaining net 170 is assembled inside the lower part of the loading bin 110 and is located above the filter cover 150. An assembly groove 171 corresponding to the lower retaining net 170 is provided on the inner wall of the lower part of the loading bin 110. A frosted pad 172 is glued to the inner wall of the assembly groove 171. The upper retaining net 180 is inserted and assembled in the upper part of the loading bin 110, and a limiting abutting strip 181 corresponding to the upper retaining net 180 is integrally provided on the inner wall of the plugging door 111. An operation window 113 corresponding to the plugging door 111 is provided on the right side wall of the loading bin 110, and a sealing strip 114 is filled in the inner wall of the operation window 113. Protective pads 112 are glued to the inner walls of both the loading bin 110 and the plugging door 111. Through this design, it is convenient for the assembly inside the loading bin 110 and the maintenance of the upper and lower ends of the denitration catalyst, making the use more convenient;

[0030] Furthermore, an intake inner pipe 190 is provided inside the intake chamber 120. The intake inner pipe 190 is fixed to the inner wall of the bottom of the intake chamber 120 and is communicated with the docking through pipe 140 at the bottom of the intake chamber 120. Ventilation holes 191 are uniformly provided on the side wall of the intake inner pipe 190, and the ventilation holes 191 are arranged in an inclined shape from the inside to the outside. Through this design, it is convenient for the guidance and dispersion of the flue gas after entering, facilitating subsequent treatment;

[0031] Furthermore, assembly grooves 121 corresponding to the intake chamber 120 and the outlet chamber 130 are provided at both the upper and lower ends of the loading bin 110, and a groove gasket 122 is glued to the inner wall of the assembly groove 121. An assembly ring 141 is provided on the outer side of the outer end of the docking through pipe 140, and a protruding docking plug 142 is integrally provided at the outer end of the docking through pipe 140. A docking thread 143 is provided on the outer wall of the docking plug 142. Through this design, it is convenient for the docking of the docking through pipe 140 and convenient for assembling relevant intake and outlet pipes as needed.

[0032] Working principle: When in assembly and use, through the openings of the docking plug 142 and the docking thread 143, it is convenient to dock the exhaust pipes of relevant flue gases. Subsequently, through the cooperation of the assembly ring 141 with bolts for assembly and fastening to prevent falling off. Then, with the cooperation of the intake inner pipe 190 and the ventilation holes 191, it is convenient to guide the flue gases, making the use more convenient. After the flue gases are dispersed and enter, they are again guided into through the air guide holes 162 and the hollow pipe 163. Subsequently, through the filtration and blocking of the upper net cover 152 and the lower net cover 153, it is convenient to filter solid small particles and sundries. Then, when it falls, through the cooperation of the side wall of the hollow pipe 163 and the collection chamber 164, it is convenient to collect it. And after falling, due to the setting of the hollow pipe 163, it is not easy to blow up solid small particles and sundries again, facilitating their collection. Subsequently, the filtered flue gases enter the filling bin 110, which is convenient for the denitrification catalytic reaction of the flue gases. At the same time, after filtering out solid small particles, the impact on the inner wall of the denitrification catalyst is reduced and avoided, preventing wear. After using for a period of time, it is convenient to replace the catalyst inside by removing the blocking door 111. At the same time, it is also convenient to disassemble the intake bin 120, and to disassemble and clean the filter cover 150 and the air guide cover 160, making the operation and use more convenient. The operation ends here.

[0033] The above is only the preferred embodiment of the present invention, and it does not impose any form of limitation on the present invention; any ordinary technician in this industry can smoothly implement the present invention as shown in the accompanying drawings of the specification and described above; however, any equivalent changes such as slight modifications, refinements, and evolutions made by those skilled in this professional field without departing from the technical solution of the present invention by using the technical content disclosed above are all equivalent embodiments of the present invention; at the same time, any equivalent changes, modifications, and evolutions made to the above embodiments based on the essential technology of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A denitration catalyst anti-wear device, comprising a device housing (100), characterized in that: The device shell (100) comprises a loading bin (110), and the loading bin (110) has a square cross-section when viewed from above. The loading bin (110) is provided with an air outlet bin (130) and an air inlet bin (120) at the upper and lower ends, and the air outlet bin (130) and the air inlet bin (120) have a circular cross-section when viewed from above. A pair of connecting pipes (140) are integrally provided at the upper end of the air outlet bin (130) and the lower end of the air inlet bin (120). A filter cover (150) and an air guide cover (160) are provided at the lower part of the loading bin (110), and the filter cover (150) and the air guide cover (160) are threadedly installed in sequence at the lower part of the interior of the loading bin (110). A blocking door (111) is provided on the right side of the loading bin (110).

2. A denitration catalyst anti-wear device according to claim 1, characterized in that: The lower inner wall of the filling bin (110) is provided with an assembly inner screw groove (151) corresponding to the filter cover (150) and the air guide cover (160), and the outer walls of the filter cover (150) and the air guide cover (160) are both provided with a docking screw groove (161) corresponding to the assembly inner screw groove (151). An upper mesh cover (152) and a lower mesh cover (153) are fixedly provided on the bottom of the filter cover (150), and the upper mesh cover (152) is located above the lower mesh cover (153). The bottom of the air guide cover (160) is evenly provided with air guide holes (162), and a hollow tube (163) that passes through the air guide holes (162) is integrally provided inside the air guide cover (160).

3. A denitration catalyst anti-wear device according to claim 2, characterized in that: The outer wall of the hollow tube (163) is in the shape of an elongated cone, and a collecting chamber (164) is provided on the inner side of the upper portion of the air guide cover (160).

4. A denitration catalyst anti-wear device according to claim 2, characterized in that: The upper net cover (152) and the lower net cover (153) are arranged in a convex arc shape, the inner diameter of the mesh of the upper net cover (152) is smaller than the inner diameter of the mesh of the lower net cover (153), and the mesh of the upper net cover (152) and the mesh of the lower net cover (153) are arranged in an up-and-down staggered manner.

5. The denitration catalyst anti-wear device according to claim 1, characterized in that: The filling bin (110) is respectively equipped with a lower baffle (170) and an upper baffle (180); the lower baffle (170) is installed in the lower part of the filling bin (110), and the lower baffle (170) is located above the filter cover (150); the lower inner wall of the filling bin (110) is provided with an assembly groove (171) corresponding to the lower baffle (170); the inner wall of the assembly groove (171) is glued with a frosting pad (172); the upper baffle (180) is installed in the lower inner wall of the filling bin (110); 0) is inserted and assembled on the upper part of the filling bin (110), and the inner wall of the blocking door (111) is integrally provided with a limit stop strip (181) corresponding to the upper blocking net (180), the right side wall of the filling bin (110) is provided with an operation window (113) corresponding to the blocking door (111), and the inner wall of the operation window (113) is filled with a sealing strip (114), and the inner wall of the filling bin (110) and the inner wall of the blocking door (111) are both glued with a protective pad (112).

6. A denitration catalyst anti-wear device according to claim 1, characterized in that: An air intake inner tube (190) is arranged inside the air intake bin (120), the air intake inner tube (190) is fixed to the inner wall of the bottom of the air intake bin (120), and is connected to the docking tube (140) at the bottom of the air intake bin (120), and the side wall of the air intake inner tube (190) is evenly provided with air vents (191), and the air vents (191) are arranged in an inclined shape from the inside to the outside.

7. A denitration catalyst anti-wear device according to claim 1, characterized in that: Both upper and lower ends of the filling bin (110) are provided with assembly grooves (121) corresponding to the air inlet bin (120) and the air outlet bin (130), and a groove gasket (122) is glued to the inner wall of the assembly groove (121), and an assembly ring (141) is provided on the side of the outer end of the docking tube (140), and a protruding docking plug (142) is integrally provided on the outer end of the docking tube (140), and a docking thread (143) is provided on the outer wall of the docking plug (142).

Images