A high-temperature dust removal and denitrification integrated device

Abstract

The invention discloses a high-temperature dust removal and denitrification integrated device, which relates to the technical field of environmental protection equipment, including a smoke treatment component, a denitrification component is provided at one end of the smoke treatment component, a conveying pipeline is provided at the other end of the denitrification component, and an ammonia injection grid is provided on one side of the conveying pipeline; wherein, a plurality of transmission components are provided on the surface wall of the denitrification component, and corresponding maintenance doors are provided on the vertical side of the denitrification component and the plurality of transmission components, and a plurality of transmission components are provided inside the denitrification component with a protective component, a storage component is provided at the bottom end of the protective component, and a limit component is provided on one side of the storage component of the protective component, which relates to the technical field of environmental protection equipment, and through the coordinated work of the unique transmission component, the protective component, the storage component and the limit component, the process of replacing the catalyst becomes simple and quick, without complicated shutdown and restart operations, which greatly shortens the replacement time, reduces the impact on production, and greatly improves the efficiency of catalyst replacement.

Description

Technical Field

[0001] The present invention relates to the technical field of environmental protection equipment, and in particular to a high-temperature dust removal and denitrification integrated device. Background Art

[0002] In industrial production, especially in many industries involving combustion processes, such as electricity, steel, chemicals, etc., a large amount of flue gas containing harmful substances will be generated. In order to reduce pollution to the environment, these flue gases need to be effectively treated, among which the denitrification link is crucial.

[0003] Current flue gas denitrification technologies usually rely on the action of catalysts to convert nitrogen oxides in flue gas into harmless substances through chemical reactions. However, in actual operation, over time, the catalyst will gradually age, become inactivated or contaminated due to long-term contact with flue gas. When the performance of the catalyst drops to a certain level, it will be impossible to thoroughly denitrify the nitrogen oxides in the flue gas, thus affecting the efficiency and effectiveness of the entire denitrification system.

[0004] In order to ensure the denitration effect, the catalyst needs to be replaced regularly, but there are many problems in the existing denitration device when replacing the catalyst. Since the catalyst is usually distributed throughout the entire processing equipment, the entire equipment has to be completely shut down when replacing it. This operation not only involves a complex shutdown process, including adjusting process parameters, stopping the operation of related equipment, etc., but also requires a series of inspections, debugging and preheating when the equipment is restarted.

[0005] This method of shutting down and restarting equipment consumes a lot of manpower and material resources. It not only requires professional technicians to operate and monitor, but may also affect the continuity of the entire production process due to long-term equipment downtime, resulting in reduced production efficiency and increased production costs. In addition, frequent equipment shutdown and restart may also have an adverse effect on the stability and service life of the equipment, increasing the difficulty and cost of equipment maintenance and repair.

[0006] The existing high-temperature dust removal and denitrification devices have many drawbacks in the catalyst replacement link, which seriously restricts the efficiency and economy of denitrification treatment. It is necessary to provide a high-temperature dust removal and denitrification integrated device to solve the above technical problems. Summary of the invention

[0007] The purpose of the present invention is to provide an integrated high-temperature dust removal and denitrification device to solve the problems in the above-mentioned background technology. Through the coordinated work of a unique transmission component, a protection component, a storage component and a limit component, when the catalyst layer inside the storage component needs to be replaced, it is only necessary to turn on the transmission component switch at the corresponding position, and the transmission component will then accurately drive the protection component to move. During the movement of the protection component, the block at one end thereof is cleverly in contact with the limit component and smoothly drives the limit component to move together. When the transmission component runs to the maximum stroke distance, the protection component can completely and effectively protect the catalyst layer to be replaced inside the storage component. At the same time, the through groove on one side of the storage component is accurately exposed, so that the flue gas can smoothly enter the catalyst layer of the lower layer from the through groove to continue catalytic treatment, thereby ensuring the continuity of the denitrification work and not being interrupted due to the replacement of the catalyst, making the process of replacing the catalyst simple and quick, without the need for complicated shutdown and restart operations, greatly shortening the replacement time, reducing the impact on production, and greatly improving the efficiency of catalyst replacement.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A high-temperature dust removal and denitration integrated device, comprising a smoke dust treatment component, a denitration component is provided at one end of the smoke dust treatment component, a delivery pipeline is provided at the other end of the denitration component, an ammonia spraying grid is provided on one side of the delivery pipeline, and the ammonia spraying grid is installed on one side of the delivery pipeline, and the pore size and distribution of the grid are accurately calculated to achieve uniform injection of ammonia and full mixing with the smoke;

[0010] Among them, the surface wall of the denitration component is provided with a plurality of transmission components, the corresponding positions of the denitration component and the transmission component are provided with sealing rings, the denitration component and the plurality of transmission components are provided with corresponding maintenance doors on one side thereof, the maintenance door is tightly connected with the denitration component, and the maintenance door has good sealing performance, a plurality of transmission components are provided with protective components inside the denitration component, a storage component is provided at the bottom end of the protective component, a limiter component is provided on one side of the storage component, and a through groove is provided at one end of the storage component corresponding to the limiter component;

[0011] Start the corresponding transmission component to drive the protection component inside the denitrification component to move, and drive the limit component to move during the movement of the protection component. When the transmission component is at the maximum travel distance, the protection component covers the storage component, and the through groove on one side of the storage component is exposed. The flue gas flows through the through groove to catalyze, and the corresponding maintenance door is opened to take out and replace the catalyst inside the storage component.

[0012] As a further solution of the present invention, a catalyst module is provided inside the storage assembly, and the storage assembly includes a storage box for accommodating the catalyst module. In particular, a hole is provided on the side of the storage box located at the maintenance door, so that the catalyst module can be taken out from the hole. A storage groove is provided at a position corresponding to the catalyst module in the storage box. The catalyst module is placed inside the storage assembly, and a support is wrapped above the catalyst module. When the protective assembly covers the storage assembly, the protective plate inside the protective assembly contacts the support, and the catalyst module inside the support can be completely wrapped, thereby preventing smoke from flowing from the inside of the storage assembly when the catalyst module is replaced;

[0013] Wherein, the storage box is provided with a receiving platform on one side of the limiting component, the length of the through groove is smaller than the length of the receiving platform, and a baffle is provided at one end of the receiving platform.

[0014] As a further solution of the present invention, the protection component includes a connection seat connected to the transmission component, a protection plate is provided above the connection seat, a stopper is provided at one end of the protection plate, and there is an appropriate magnetic adsorption effect between the limit assembly and the stopper of the protection assembly. The connection method between the limit assembly and the protection assembly is simple and stable, and can be quickly moved and accurately reset when needed;

[0015] Among them, the block is located at the center position of one end of the protective plate, and a magnet is embedded in the inside of the block. The protective component is made of high-strength, high-temperature resistant plate, and the surface is specially treated to have good wear resistance and corrosion resistance. The size of the internal protective plate is the same as the size of the storage component, and a connecting seat is provided at the connection with the transmission component to ensure reliability during the transmission process. At the same time, a magnet is embedded in the block on one side of the protective component, so that when the block contacts the limit component, it is adsorbed by the internal magnet and the limit component. When the transmission component is running, the limit component is driven to move by the magnet.

[0016] As a further solution of the present invention, the transmission assembly includes a fixing seat connected to the denitration assembly, one end of the fixing seat is provided with a cylinder body, and a transmission shaft is provided inside the cylinder body;

[0017] Among them, the fixed seat is located on one side of the denitrification component and is also provided with a connecting cross plate for accommodating the protective component. Several transmission components are arranged on the surface wall of the denitrification component, and each transmission component is composed of a cylinder body, a fixed seat and a transmission shaft. The cylinder body can provide stable and powerful power, and the position of the protective component inside the denitrification component is changed by the in-and-out movement of the transmission shaft. The fixed seat is tightly connected to the denitrification component, so that the transmission component and the denitrification component are tightly connected when fixed, and a sealing ring is provided at the intersection of the denitrification component and the transmission component. In this way, when the transmission component is in operation, the sealing ring can prevent the internal smoke from overflowing from the intersection.

[0018] As a further solution of the present invention, the limit assembly includes a limit plate, the length of the limit plate is smaller than the size of the supporting platform, a limit hole is opened at one end of the limit plate, the size of the limit hole is the same as the size of the baffle plate, the transmission assembly makes a return motion, drives the protection assembly to return, and during the return process, due to the magnetic adsorption of the block and the limit assembly, the limit assembly can be driven to move until the limit assembly completely covers the through groove, and at this time the limit plate and the baffle plate inside the limit assembly are engaged with each other.

[0019] As a further scheme of the present invention, a guide box is provided above the denitrification component, and the guide box is connected to the conveying pipeline. An outlet pipe is provided at the bottom end of the denitrification component, and a sealing structure is provided at the connection between the outlet pipe and the denitrification component. A rectifier grid is provided at the corresponding position of the connection between the denitrification component and the guide box, and a sonic soot blower is provided at the bottom end of the rectifier grid. The denitrification component and the smoke treatment component are tightly connected through the conveying pipeline to ensure that the flue gas can be smoothly transmitted between the two. The conveying pipeline adopts a material with good insulation performance to reduce heat loss and ensure smooth flow of internal flue gas. In addition, a guide plate is provided inside the conveying pipeline. Through the setting of the guide plate, the flue gas inside the conveying pipeline is guided to make the flow faster and will not generate a large impact force on the conveying pipeline.

[0020] As a further solution of the present invention, a gas outlet pipe is provided at one end of the smoke treatment component, an air inlet pipe is provided at the other end of the smoke treatment component, and a sealing structure is provided at the connection between the air inlet pipe and the smoke treatment component;

[0021] Among them, an ash hopper is provided at the bottom of the smoke treatment component, and a dust cleaning component is provided at the bottom of the ash hopper. The smoke treatment component is made of high temperature resistant and corrosion resistant materials, such as stainless steel or special alloys. Its internal structure is carefully designed, and multiple filter bags are provided inside to filter impurities in the smoke. It can effectively perform preliminary treatment on the dust-containing flue gas and remove larger particles of dust. The removed larger particles enter the ash hopper, and finally the dust is processed by the dust cleaning component at the bottom.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The present invention realizes the coordinated work of a unique transmission assembly, a protection assembly, a storage assembly and a limit assembly. When the catalyst layer inside the storage assembly needs to be replaced, it is only necessary to turn on the transmission assembly switch at the corresponding position, and the transmission assembly will then accurately drive the protection assembly to move. During the movement of the protection assembly, the block at one end thereof cleverly contacts the limit assembly and smoothly drives the limit assembly to move together. When the transmission assembly runs to the maximum stroke distance, the protection assembly can completely and effectively protect the catalyst layer to be replaced inside the storage assembly. At the same time, the through groove on one side of the storage assembly is accurately exposed, so that the flue gas can smoothly enter the catalyst layer below from the through groove to continue catalytic treatment, thereby ensuring the continuity of the denitrification work and not being interrupted due to catalyst replacement. The process of replacing the catalyst becomes simple and quick, without the need for complicated shutdown and restart operations, which greatly shortens the replacement time, reduces the impact on production, and greatly improves the efficiency of catalyst replacement.

[0024] The present invention starts the transmission component to perform a return movement. During the return process, due to the magnetic adsorption effect between the block and the limit assembly, the limit assembly can be reliably driven to move synchronously until the limit assembly completely covers the through groove and the limit assembly is tightly engaged with the baffle. At this time, the transmission component continues to return, so that the protection component and the newly replaced catalyst layer inside the storage component maintain an appropriate distance, avoiding unnecessary contact and interference, effectively ensuring the continuity of the denitrification work, and allowing the flue gas to smoothly enter the lower catalyst layer to continue catalysis, ensuring that the denitrification process is uninterrupted and maintaining a stable denitrification effect. The simplified replacement process reduces the operating difficulty and workload of professional and technical personnel, and at the same time avoids energy consumption and equipment loss caused by frequent shutdown and restart of equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0026] Figure 1 It is a schematic diagram of the front view structure of the high-temperature dust removal and denitrification integrated device of the present invention;

[0027] Figure 2 It is a schematic diagram of the front view structure of the denitration component of the high-temperature dust removal and denitration integrated device of the present invention;

[0028] Figure 3 It is a schematic diagram of the internal structure of the denitration component in the high-temperature dust removal and denitration integrated device of the present invention;

[0029] Figure 4 It is a schematic diagram of the overall structure of the limiting assembly in the high-temperature dust removal and denitrification integrated device of the present invention;

[0030] Figure 5It is a schematic diagram of the overall structure of the storage component, the limit component and the protection component in the high-temperature dust removal and denitrification integrated device of the present invention;

[0031] Figure 6 It is a schematic diagram of the structure of the protective component in the high-temperature dust removal and denitrification integrated device of the present invention in a moving state, a storage component and a limit component;

[0032] Figure 7 It is a schematic diagram of the structure of the protective component in the high-temperature dust removal and denitrification integrated device of the present invention, the protective component in the moving process, the storage component and the limiting component;

[0033] Figure 8 It is a schematic diagram of the overall structure of the storage component in the high-temperature dust removal and denitrification integrated device of the present invention;

[0034] Fig. 9 It is a schematic diagram of the overall structure of the connection between the storage component and the limit component in the high-temperature dust removal and denitrification integrated device of the present invention;

[0035] Fig.10 It is a schematic diagram of the overall structure of the protection component in the high-temperature dust removal and denitrification integrated device of the present invention;

[0036] Fig.11 It is a schematic diagram of the overall structure of the transmission component in the high-temperature dust removal and denitrification integrated device of the present invention.

[0037] In the figure: 1. Smoke treatment component; 2. Denitrification component; 3. Inlet pipe; 4. Exit pipe; 5. Limit plate; 6. Storage component; 61. Storage box; 62. Storage slot; 63. Baffle; 64. Through slot; 65. Receiving platform; 7. Limit component; 8. Protection component; 81. Protection plate; 82. Connecting seat; 83. Block; 9. Transmission component; 91. Cylinder body; 92. Fixed seat; 93. Transmission shaft; 10. Maintenance door; 11. Guide box; 12. Conveying pipeline; 13. Ammonia injection grid; 14. Sonic soot blower; 15. Rectifier grid; 16. Limit hole; 17. Ash hopper; 18. Dust cleaning component; 19. Catalyst module; 20. Sealing ring. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. In addition, for the convenience of description below, the referenced "upper", "lower", "left", and "right" are the same as the upper, lower, left, and right directions of the drawings themselves. The "first", "second", etc. below are distinguished for the description and have no other special meanings.

[0039] The embodiment of the present application solves the problems in the prior art by providing an integrated high-temperature dust removal and denitrification device. Through the coordinated work of a unique transmission component, a protective component, a storage component and a limit component, when the catalyst layer inside the storage component needs to be replaced, it is only necessary to turn on the transmission component switch at the corresponding position, and the transmission component will then accurately drive the protection component to move. During the movement of the protection component, the block at one end thereof cleverly contacts the limit component and smoothly drives the limit component to move together. When the transmission component runs to the maximum stroke distance, the protective component can completely and effectively protect the catalyst layer to be replaced inside the storage component. At the same time, the through groove on one side of the storage component is accurately exposed, so that the flue gas can smoothly enter the catalyst layer below from the through groove to continue catalytic treatment, thereby ensuring the continuity of the denitrification work and not being interrupted due to catalyst replacement, making the process of catalyst replacement easier. It is simple and fast, without complicated shutdown and restart operations, which greatly shortens the replacement time, reduces the impact on production, and greatly improves the efficiency of catalyst replacement; start the transmission component to perform the return movement. During the return process, due to the magnetic adsorption between the block and the limit component, it can reliably drive the limit component to move synchronously until the limit component completely covers the through groove and the limit component is tightly engaged with the baffle. At this time, the transmission component continues to return, so that the protective component and the newly replaced catalyst layer inside the storage component maintain an appropriate distance to avoid unnecessary contact and interference, effectively ensuring the continuity of the denitrification work, so that the flue gas can smoothly enter the lower catalyst layer to continue catalysis, ensuring that the denitrification process is uninterrupted and maintaining a stable denitrification effect. The simplified replacement process reduces the operating difficulty and workload of professional and technical personnel, and at the same time avoids the energy consumption and equipment loss caused by frequent shutdown and restart of equipment. Example

[0040] This embodiment provides a specific structure of a high-temperature dust removal and denitrification integrated device, such as Figure 1-11As shown, it includes a smoke treatment component 1, a denitration component 2 is provided at one end of the smoke treatment component 1, a delivery pipeline 12 is provided at the other end of the denitration component 2, an ammonia spraying grid 13 is provided on one side of the delivery pipeline 12, and the ammonia spraying grid 13 is installed on one side of the delivery pipeline 12, and the pore size and distribution of the grid are accurately calculated to achieve uniform injection of ammonia and full mixing with the smoke;

[0041] Among them, a plurality of transmission components 9 are provided on the surface wall of the denitration component 2, and a sealing ring 20 is provided at the corresponding position of the denitration component 2 and the transmission component 9. A corresponding maintenance door 10 is provided on the vertical side of the denitration component 2 and the plurality of transmission components 9. The maintenance door 10 is tightly connected to the denitration component 2, and the maintenance door 10 has good sealing performance. A plurality of transmission components 9 are provided with a protective component 8 inside the denitration component 2, and a storage component 6 is provided at the bottom end of the protective component 8. A limit component 7 is provided on one side of the storage component 6 of the protective component 8, and a through groove 64 is provided at one end of the storage component 6 corresponding to the limit component 7;

[0042] Start the corresponding transmission component 9 to drive the protection component 8 inside the denitrification component 2 to move. During the movement of the protection component 8, the limit component 7 is driven to move. When the transmission component 9 is at the maximum travel distance, the protection component 8 covers the storage component 6, and the through groove 64 on one side of the storage component 6 is exposed. The flue gas flows through the through groove 64 to catalyze. Open the corresponding maintenance door 10 and take out and replace the catalyst inside the storage component 6.

[0043] A catalyst module 19 is provided inside the storage assembly 6. The storage assembly 6 includes a storage box 61 for accommodating the catalyst module 19. A storage groove 62 is provided at the storage box 61 and the catalyst module 19 at a position corresponding to the storage box 61. The catalyst module 19 is placed inside the storage assembly 6, and a support is wrapped above the catalyst module 19. When the protection assembly 8 covers the storage assembly 6, the protection plate 81 inside the protection assembly 8 contacts the support, and the catalyst module 19 inside the support can be completely wrapped, so as to prevent the flue gas from flowing from the inside of the storage assembly 6 when the catalyst module 19 is replaced;

[0044] A receiving platform 65 is provided on one side of the storage box 61 located at the limiting component 7 . The length of the through groove 64 is smaller than that of the receiving platform 65 . A baffle 63 is provided at one end of the receiving platform 65 .

[0045] The protection component 8 includes a connection seat 82 connected to the transmission component 9, a protection plate 81 is provided above the connection seat 82, a stopper 83 is provided at one end of the protection plate 81, and there is an appropriate magnetic adsorption effect between the limit component 7 and the stopper 83 of the protection component 8. The connection method between the limit component 7 and the protection component 8 is simple and stable, and can be quickly moved and accurately reset when needed;

[0046] Among them, the stopper 83 is located at the center position of one end of the protective plate 81, and a magnet is embedded in the inside of the stopper 83. The protective component 8 is made of high-strength, high-temperature resistant plate, and the surface is specially treated to have good wear resistance and corrosion resistance. The size of the internal protective plate 81 is the same as the size of the storage component 6, and a connecting seat 82 is provided at the connection with the transmission component 9 to ensure reliability during the transmission process. At the same time, a magnet is embedded in the stopper 83 on one side of the protective component 8, so that when the stopper 83 contacts the limit component 7, it is adsorbed by the internal magnet and the limit component 7. When the transmission component 9 is running, the limit component 7 is driven to move by the magnet.

[0047] The transmission assembly 9 includes a fixed seat 92 connected to the denitration assembly 2, a cylinder body 91 is provided at one end of the fixed seat 92, and a transmission shaft 93 is provided inside the cylinder body 91;

[0048] Among them, the fixed seat 92 is located on one side of the denitrification component 2 and is also provided with a connecting horizontal plate for accommodating the protective component 8. Several transmission components 9 are arranged on the surface wall of the denitrification component 2, and each transmission component 9 is composed of a cylinder body 91, a fixed seat 92 and a transmission shaft 93. The cylinder body 91 can provide stable and powerful power, and the position of the protective component 8 inside the denitrification component 2 is changed by the in-and-out movement of the transmission shaft 93. The fixed seat 92 is tightly connected to the denitrification component 2, so that the transmission component 9 is tightly connected to the denitrification component 2 when fixed, and a sealing ring 20 is provided at the intersection of the denitrification component 2 and the transmission component 9. In this way, when the transmission component 9 is in operation, the sealing ring 20 can prevent the internal smoke from overflowing from the intersection.

[0049] The limit assembly 7 includes a limit plate 5, the length of which is smaller than the size of the receiving platform 65, and a limit hole 16 is provided at one end of the limit plate 5. The size of the limit hole 16 is the same as the size of the baffle 63. The transmission assembly 9 makes a return motion to drive the protection assembly 8 to return. During the return process, due to the magnetic adsorption of the block 83 and the limit assembly 7, the limit assembly 7 can be driven to move until the limit assembly 7 completely covers the through groove 64. At this time, the limit plate 5 and the baffle 63 inside the limit assembly 7 are mutually engaged.

[0050] A guide box 11 is provided above the denitrification component 2, and the guide box 11 is connected to the conveying pipe 12. An outlet pipe 4 is provided at the bottom of the denitrification component 2, and a sealing structure is provided at the connection between the outlet pipe 4 and the denitrification component 2. A rectifying grid 15 is provided at the corresponding position of the connection between the denitrification component 2 and the guide box 11, and a sonic soot blower 14 is provided at the bottom of the rectifying grid 15. The denitrification component 2 and the smoke treatment component 1 are tightly connected through the outlet pipe 4 to ensure that the flue gas can be smoothly transmitted between the two. The conveying pipe 12 adopts a material with good insulation performance to reduce heat loss and ensure smooth flow of the internal flue gas. In addition, a guide plate is provided inside the conveying pipe 12. Through the setting of the guide plate, the flue gas inside the conveying pipe 12 is guided to make the flow faster and will not generate a large impact force on the conveying pipe 12.

[0051] A gas outlet pipe is provided at one end of the smoke treatment component 1, and an air inlet pipe 3 is provided at the other end of the smoke treatment component 1. A sealing structure is provided at the connection between the air inlet pipe 3 and the smoke treatment component 1;

[0052] Among them, a dust collecting hopper 17 is provided at the bottom of the smoke dust treatment component 1, and a dust cleaning component 18 is provided at the bottom of the ash collecting hopper 17. The smoke dust treatment component 1 is made of high temperature resistant and corrosion resistant materials, such as stainless steel or special alloys. Its internal structure is carefully designed, and multiple filter bags are provided inside to filter impurities in the smoke. It can effectively perform preliminary treatment on the dust-containing flue gas and remove larger particles of dust. The removed larger particles enter the ash collecting hopper 17, and finally the dust is processed by the dust cleaning component 18 at the bottom.

[0053] By adopting the above technical solution:

[0054] In a large cement plant, this high-temperature dust removal and denitrification integrated device is widely used.

[0055] In long-term operation, when the catalyst of the first layer needs to be replaced, the operator starts the corresponding transmission component 9 switch, and the transmission component 9 drives the protection component 8 to move. When the block 83 at one end of the protection component 8 contacts the limit component 7, the limit component 7 is driven to move during the movement of the protection component 8. When the transmission component 9 is at the maximum travel distance, the transmission component 9 stops running, the protection component 8 completely protects the catalyst module 19 inside the storage component 6, and the through groove 64 on one side of the storage component 6 is exposed. At this time, the flue gas enters the catalyst module 19 of the lower layer from the through groove 64 for catalysis, and the corresponding maintenance door 10 is opened to remove the catalyst inside the storage component 6. The chemical module 19 is taken out and replaced. After the replacement is completed, the maintenance door 10 is closed, and the transmission component 9 makes a return movement, driving the protection component 8 to return. During the return process, due to the magnetic adsorption of the block 83 and the limit component 7, the limit component 7 can be driven to move until the limit component 7 completely covers the through groove 64. At this time, the limit plate 5 and the baffle 63 inside the limit component 7 are engaged with each other. At this time, the transmission component 9 continues to return, so that the protection component 8 is not in contact with the catalyst module inside the storage component 6. Thereafter, each catalyst module 19 can be replaced in sequence according to this step, without causing a significant impact on the normal production of the cement plant, and the denitrification efficiency is always maintained at a high level. Example

[0056] This embodiment provides a specific structure of a high-temperature dust removal and denitrification integrated device, such as Figure 1-11 As shown, it includes a smoke treatment component 1, a denitration component 2 is provided at one end of the smoke treatment component 1, a delivery pipeline 12 is provided at the other end of the denitration component 2, an ammonia spraying grid 13 is provided on one side of the delivery pipeline 12, and the ammonia spraying grid 13 is installed on one side of the delivery pipeline 12, and the pore size and distribution of the grid are accurately calculated to achieve uniform injection of ammonia and full mixing with the smoke;

[0057] Among them, a plurality of transmission components 9 are provided on the surface wall of the denitration component 2, and a sealing ring 20 is provided at the corresponding position of the denitration component 2 and the transmission component 9. A corresponding maintenance door 10 is provided on the vertical side of the denitration component 2 and the plurality of transmission components 9. The maintenance door 10 is tightly connected to the denitration component 2, and the maintenance door 10 has good sealing performance. A plurality of transmission components 9 are provided with a protective component 8 inside the denitration component 2, and a storage component 6 is provided at the bottom end of the protective component 8. A limit component 7 is provided on one side of the storage component 6 of the protective component 8, and a through groove 64 is provided at one end of the storage component 6 corresponding to the limit component 7;

[0058] Start the corresponding transmission component 9 to drive the protection component 8 inside the denitrification component 2 to move. During the movement of the protection component 8, the limit component 7 is driven to move. When the transmission component 9 is at the maximum travel distance, the protection component 8 covers the storage component 6, and the through groove 64 on one side of the storage component 6 is exposed. The flue gas flows through the through groove 64 to catalyze. Open the corresponding maintenance door 10 and take out and replace the catalyst inside the storage component 6.

[0059] A catalyst module 19 is provided inside the storage assembly 6. The storage assembly 6 includes a storage box 61 for accommodating the catalyst module 19. A storage groove 62 is provided at the storage box 61 and the catalyst module 19 at a position corresponding to the storage box 61. The catalyst module 19 is placed inside the storage assembly 6, and a support is wrapped above the catalyst module 19. When the protection assembly 8 covers the storage assembly 6, the protection plate 81 inside the protection assembly 8 contacts the support, and the catalyst module 19 inside the support can be completely wrapped, so as to prevent the flue gas from flowing from the inside of the storage assembly 6 when the catalyst module 19 is replaced;

[0060] A receiving platform 65 is provided on one side of the storage box 61 located at the limiting component 7 . The length of the through groove 64 is smaller than that of the receiving platform 65 . A baffle 63 is provided at one end of the receiving platform 65 .

[0061] The protection component 8 includes a connection seat 82 connected to the transmission component 9, a protection plate 81 is provided above the connection seat 82, a stopper 83 is provided at one end of the protection plate 81, and there is an appropriate magnetic adsorption effect between the limit component 7 and the stopper 83 of the protection component 8. The connection method between the limit component 7 and the protection component 8 is simple and stable, and can be quickly moved and accurately reset when needed;

[0062] Among them, the stopper 83 is located at the center position of one end of the protective plate 81, and a magnet is embedded in the inside of the stopper 83. The protective component 8 is made of high-strength, high-temperature resistant plate, and the surface is specially treated to have good wear resistance and corrosion resistance. The size of the internal protective plate 81 is the same as the size of the storage component 6, and a connecting seat 82 is provided at the connection with the transmission component 9 to ensure reliability during the transmission process. At the same time, a magnet is embedded in the stopper 83 on one side of the protective component 8, so that when the stopper 83 contacts the limit component 7, it is adsorbed by the internal magnet and the limit component 7. When the transmission component 9 is running, the limit component 7 is driven to move by the magnet.

[0063] The transmission assembly 9 includes a fixed seat 92 connected to the denitration assembly 2, a cylinder body 91 is provided at one end of the fixed seat 92, and a transmission shaft 93 is provided inside the cylinder body 91;

[0064] Among them, the fixed seat 92 is located on one side of the denitrification component 2 and is also provided with a connecting horizontal plate for accommodating the protective component 8. Several transmission components 9 are arranged on the surface wall of the denitrification component 2, and each transmission component 9 is composed of a cylinder body 91, a fixed seat 92 and a transmission shaft 93. The cylinder body 91 can provide stable and powerful power, and the position of the protective component 8 inside the denitrification component 2 is changed by the in-and-out movement of the transmission shaft 93. The fixed seat 92 is tightly connected to the denitrification component 2, so that the transmission component 9 is tightly connected to the denitrification component 2 when fixed, and a sealing ring 20 is provided at the intersection of the denitrification component 2 and the transmission component 9. In this way, when the transmission component 9 is in operation, the sealing ring 20 can prevent the internal smoke from overflowing from the intersection.

[0065] The limit assembly 7 includes a limit plate 5, the length of which is smaller than the size of the receiving platform 65, and a limit hole 16 is provided at one end of the limit plate 5. The size of the limit hole 16 is the same as the size of the baffle 63. The transmission assembly 9 makes a return motion to drive the protection assembly 8 to return. During the return process, due to the magnetic adsorption of the block 83 and the limit assembly 7, the limit assembly 7 can be driven to move until the limit assembly 7 completely covers the through groove 64. At this time, the limit plate 5 and the baffle 63 inside the limit assembly 7 are mutually engaged.

[0066] A guide box 11 is provided above the denitrification component 2, and the guide box 11 is connected to the conveying pipe 12. An outlet pipe 4 is provided at the bottom of the denitrification component 2, and a sealing structure is provided at the connection between the outlet pipe 4 and the denitrification component 2. A rectifying grid 15 is provided at the corresponding position of the connection between the denitrification component 2 and the guide box 11, and a sonic soot blower 14 is provided at the bottom of the rectifying grid 15. The denitrification component 2 and the smoke treatment component 1 are tightly connected through the outlet pipe 4 to ensure that the flue gas can be smoothly transmitted between the two. The conveying pipe 12 adopts a material with good insulation performance to reduce heat loss and ensure smooth flow of the internal flue gas. In addition, a guide plate is provided inside the conveying pipe 12. Through the setting of the guide plate, the flue gas inside the conveying pipe 12 is guided to make the flow faster and will not generate a large impact force on the conveying pipe 12.

[0067] A gas outlet pipe is provided at one end of the smoke treatment component 1, and an air inlet pipe 3 is provided at the other end of the smoke treatment component 1. A sealing structure is provided at the connection between the air inlet pipe 3 and the smoke treatment component 1;

[0068] Among them, a dust collecting hopper 17 is provided at the bottom of the smoke dust treatment component 1, and a dust cleaning component 18 is provided at the bottom of the ash collecting hopper 17. The smoke dust treatment component 1 is made of high temperature resistant and corrosion resistant materials, such as stainless steel or special alloys. Its internal structure is carefully designed, and multiple filter bags are provided inside to filter impurities in the smoke. It can effectively perform preliminary treatment on the dust-containing flue gas and remove larger particles of dust. The removed larger particles enter the ash collecting hopper 17, and finally the dust is processed by the dust cleaning component 18 at the bottom.

[0069] By adopting the above technical solution:

[0070] In a medium-sized thermal power plant, this device operates stably.

[0071] During a replacement operation of the second layer of catalyst, the staff starts the transmission component 9 according to the standard process, and the transmission component 9 drives the protection component 8 to move. When the block 83 at one end of the protection component 8 contacts the limit component 7, the limit component 7 is driven to move during the movement of the protection component 8. When the transmission component 9 is at the maximum travel distance, the transmission component 9 stops running, the protection component 8 completely protects the catalyst module 19 inside the storage component 6, and the through groove 64 on one side of the storage component 6 is exposed. At this time, the flue gas enters the catalyst module 19 of the lower layer from the through groove 64 for catalysis. The corresponding maintenance door 10 is opened, and the catalyst module 19 inside the storage component 6 is taken out and replaced. After the replacement is completed, Close the maintenance door 10, and the transmission component 9 performs a return movement, driving the protection component 8 to return. During the return process, due to the magnetic attraction between the block 83 and the limit component 7, the limit component 7 can be driven to move until the limit component 7 completely covers the through groove 64. At this time, the limit plate 5 and the baffle 63 inside the limit component 7 are mutually engaged. At this time, the transmission component 9 continues to return, so that the protection component 8 is not in contact with the catalyst module inside the storage component 6. Thereafter, each catalyst module 19 can be replaced in sequence according to this step. The replacement process is smooth, and there is no fluctuation in the operation of the equipment. The replaced device continues to denitrify efficiently, which not only reduces the emission of nitrogen oxides, but also reduces the maintenance cost and manpower investment of the equipment. Example

[0072] This embodiment provides a specific structure of a high-temperature dust removal and denitrification integrated device, such as Figure 1-11 As shown, it includes a smoke treatment component 1, a denitration component 2 is provided at one end of the smoke treatment component 1, a delivery pipeline 12 is provided at the other end of the denitration component 2, an ammonia spraying grid 13 is provided on one side of the delivery pipeline 12, and the ammonia spraying grid 13 is installed on one side of the delivery pipeline 12, and the pore size and distribution of the grid are accurately calculated to achieve uniform injection of ammonia and full mixing with the smoke;

[0073] Among them, a plurality of transmission components 9 are provided on the surface wall of the denitration component 2, and a sealing ring 20 is provided at the corresponding position of the denitration component 2 and the transmission component 9. A corresponding maintenance door 10 is provided on the vertical side of the denitration component 2 and the plurality of transmission components 9. The maintenance door 10 is tightly connected to the denitration component 2, and the maintenance door 10 has good sealing performance. A plurality of transmission components 9 are provided with a protective component 8 inside the denitration component 2, and a storage component 6 is provided at the bottom end of the protective component 8. A limit component 7 is provided on one side of the storage component 6 of the protective component 8, and a through groove 64 is provided at one end of the storage component 6 corresponding to the limit component 7;

[0074] Start the corresponding transmission component 9 to drive the protection component 8 inside the denitrification component 2 to move. During the movement of the protection component 8, the limit component 7 is driven to move. When the transmission component 9 is at the maximum travel distance, the protection component 8 covers the storage component 6, and the through groove 64 on one side of the storage component 6 is exposed. The flue gas flows through the through groove 64 to catalyze. Open the corresponding maintenance door 10 and take out and replace the catalyst inside the storage component 6.

[0075] A catalyst module 19 is provided inside the storage assembly 6. The storage assembly 6 includes a storage box 61 for accommodating the catalyst module 19. A storage groove 62 is provided at the storage box 61 and the catalyst module 19 at a position corresponding to the storage box 61. The catalyst module 19 is placed inside the storage assembly 6, and a support is wrapped above the catalyst module 19. When the protection assembly 8 covers the storage assembly 6, the protection plate 81 inside the protection assembly 8 contacts the support, and the catalyst module 19 inside the support can be completely wrapped, so as to prevent the flue gas from flowing from the inside of the storage assembly 6 when the catalyst module 19 is replaced;

[0076] A receiving platform 65 is provided on one side of the storage box 61 located at the limiting component 7 . The length of the through groove 64 is smaller than that of the receiving platform 65 . A baffle 63 is provided at one end of the receiving platform 65 .

[0077] The protection component 8 includes a connection seat 82 connected to the transmission component 9, a protection plate 81 is provided above the connection seat 82, a stopper 83 is provided at one end of the protection plate 81, and there is an appropriate magnetic adsorption effect between the limit component 7 and the stopper 83 of the protection component 8. The connection method between the limit component 7 and the protection component 8 is simple and stable, and can be quickly moved and accurately reset when needed;

[0078] Among them, the stopper 83 is located at the center position of one end of the protective plate 81, and a magnet is embedded in the inside of the stopper 83. The protective component 8 is made of high-strength, high-temperature resistant plate, and the surface is specially treated to have good wear resistance and corrosion resistance. The size of the internal protective plate 81 is the same as the size of the storage component 6, and a connecting seat 82 is provided at the connection with the transmission component 9 to ensure reliability during the transmission process. At the same time, a magnet is embedded in the stopper 83 on one side of the protective component 8, so that when the stopper 83 contacts the limit component 7, it is adsorbed by the internal magnet and the limit component 7. When the transmission component 9 is running, the limit component 7 is driven to move by the magnet.

[0079] The transmission assembly 9 includes a fixed seat 92 connected to the denitration assembly 2, a cylinder body 91 is provided at one end of the fixed seat 92, and a transmission shaft 93 is provided inside the cylinder body 91;

[0080] Among them, the fixed seat 92 is located on one side of the denitrification component 2 and is also provided with a connecting horizontal plate for accommodating the protective component 8. Several transmission components 9 are arranged on the surface wall of the denitrification component 2, and each transmission component 9 is composed of a cylinder body 91, a fixed seat 92 and a transmission shaft 93. The cylinder body 91 can provide stable and powerful power, and the position of the protective component 8 inside the denitrification component 2 is changed by the in-and-out movement of the transmission shaft 93. The fixed seat 92 is tightly connected to the denitrification component 2, so that the transmission component 9 is tightly connected to the denitrification component 2 when fixed, and a sealing ring 20 is provided at the intersection of the denitrification component 2 and the transmission component 9. In this way, when the transmission component 9 is in operation, the sealing ring 20 can prevent the internal smoke from overflowing from the intersection.

[0081] The limit assembly 7 includes a limit plate 5, the length of which is smaller than the size of the receiving platform 65, and a limit hole 16 is provided at one end of the limit plate 5. The size of the limit hole 16 is the same as the size of the baffle 63. The transmission assembly 9 makes a return motion to drive the protection assembly 8 to return. During the return process, due to the magnetic adsorption of the block 83 and the limit assembly 7, the limit assembly 7 can be driven to move until the limit assembly 7 completely covers the through groove 64. At this time, the limit plate 5 and the baffle 63 inside the limit assembly 7 are mutually engaged.

[0082] A guide box 11 is provided above the denitrification component 2, and the guide box 11 is connected to the conveying pipe 12. An outlet pipe 4 is provided at the bottom of the denitrification component 2, and a sealing structure is provided at the connection between the outlet pipe 4 and the denitrification component 2. A rectifying grid 15 is provided at the corresponding position of the connection between the denitrification component 2 and the guide box 11, and a sonic soot blower 14 is provided at the bottom of the rectifying grid 15. The denitrification component 2 and the smoke treatment component 1 are tightly connected through the outlet pipe 4 to ensure that the flue gas can be smoothly transmitted between the two. The conveying pipe 12 adopts a material with good insulation performance to reduce heat loss and ensure smooth flow of the internal flue gas. In addition, a guide plate is provided inside the conveying pipe 12. Through the setting of the guide plate, the flue gas inside the conveying pipe 12 is guided to make the flow faster and will not generate a large impact force on the conveying pipe 12.

[0083] A gas outlet pipe is provided at one end of the smoke treatment component 1, and an air inlet pipe 3 is provided at the other end of the smoke treatment component 1. A sealing structure is provided at the connection between the air inlet pipe 3 and the smoke treatment component 1;

[0084] Among them, a dust collecting hopper 17 is provided at the bottom of the smoke dust treatment component 1, and a dust cleaning component 18 is provided at the bottom of the ash collecting hopper 17. The smoke dust treatment component 1 is made of high temperature resistant and corrosion resistant materials, such as stainless steel or special alloys. Its internal structure is carefully designed, and multiple filter bags are provided inside to filter impurities in the smoke. It can effectively perform preliminary treatment on the dust-containing flue gas and remove larger particles of dust. The removed larger particles enter the ash collecting hopper 17, and finally the dust is processed by the dust cleaning component 18 at the bottom.

[0085] By adopting the above technical solution:

[0086] In a steel smelting enterprise, this integrated high-temperature dust removal and denitrification device plays an important role.

[0087] During the periodic catalyst replacement, for the replacement of the third layer of catalyst, the transmission component 9 drives the protection component 8 to move. When the block 83 at one end of the protection component 8 contacts the limit component 7, the limit component 7 is driven to move during the movement of the protection component 8. When the transmission component 9 is at the maximum travel distance, the transmission component 9 stops running, the protection component 8 completely protects the catalyst module 19 inside the storage component 6, and the through groove 64 on one side of the storage component 6 is exposed. At this time, the flue gas enters the catalyst module 19 of the lower layer from the through groove 64 for catalysis. The corresponding maintenance door 10 is opened, and the catalyst module 19 inside the storage component 6 is taken out and replaced. After the replacement is completed, Close the maintenance door 10, and the transmission component 9 performs a return movement, driving the protection component 8 to return. During the return process, due to the magnetic attraction between the block 83 and the limit component 7, the limit component 7 can be driven to move until the limit component 7 completely covers the through groove 64. At this time, the limit plate 5 and the baffle 63 inside the limit component 7 are mutually engaged. At this time, the transmission component 9 continues to return, so that the protection component 8 is not in contact with the catalyst module inside the storage component 6. Thereafter, each catalyst module 19 can be replaced in sequence according to this step. The replaced device continues to operate stably, effectively controls pollutant emissions, improves the company's environmental protection level, and also ensures the continuity and stability of production.

[0088] Working principle:

[0089] The high-temperature flue gas first enters the denitrification component 2 through the conveying pipe 12. In the denitrification component 2, the ammonia spray grid 13 evenly sprays ammonia into the flue gas inside the conveying pipe 12 to fully mix the ammonia and the flue gas. When the mixed flue gas flows through the catalyst module 19 in the storage component 6, under the action of the catalyst module 19, the nitrogen oxides and ammonia react chemically to achieve denitrification treatment.

[0090] When the catalyst module 19 in a certain layer of the storage assembly 6 needs to be replaced, the corresponding transmission assembly 9 is started, and the transmission assembly 9 drives the protection assembly 8 inside the denitration assembly 2 to move. When the block 83 at one end of the protection assembly 8 contacts the limit assembly 7, the limit assembly 7 is driven to move during the movement of the protection assembly 8. When the transmission assembly 9 is at the maximum travel distance, the transmission assembly 9 stops running, the protection assembly 8 completely protects the catalyst module 19 inside the storage assembly 6, and the through groove 64 on one side of the storage assembly 6 is exposed. At this time, the flue gas enters the catalyst module 19 of the lower layer from the through groove 64 for catalysis, and then the uppermost Open the maintenance door 10 corresponding to the layer, take out the catalyst module 19 inside the storage component 6 and replace it. After the replacement is completed, close the maintenance door 10, and the transmission component 9 makes a return motion to drive the protection component 8 to return. During the return process, due to the magnetic adsorption of the block 83 and the limit component 7, the limit component 7 can be driven to move until the limit component 7 completely covers the through groove 64. At this time, the limit plate 5 and the baffle 63 inside the limit component 7 are mutually engaged. At this time, the transmission component 9 continues to return, so that the protection component 8 is not in contact with the catalyst module inside the storage component 6, and then each catalyst module 19 can be replaced in sequence according to this step.

[0091] The dust-containing and nitrogen oxide-containing flue gas after denitrification enters the smoke treatment component 1 through the air intake pipe 3, and undergoes preliminary filtration and dust removal treatment by the smoke treatment component 1 to remove larger particles of dust and impurities. The removed larger particles of dust and impurities enter the ash hopper 17 to be collected, and are then cleaned by the dust cleaning component 18.

[0092] During the entire process, all components cooperate with each other and operate precisely, ensuring continuous and stable denitrification work while achieving efficient and convenient replacement of catalysts.

[0093] Those skilled in the art will appreciate that the accompanying drawings are merely schematic diagrams of a preferred implementation scenario, and the modules or processes in the accompanying drawings are not necessarily required for implementing the present invention.

[0094] Those skilled in the art will appreciate that the modules in the device in the implementation scenario can be distributed in the device in the implementation scenario according to the implementation scenario description, or can be changed accordingly and located in one or more devices different from the implementation scenario. The modules in the above implementation scenario can be combined into one module, or can be further split into multiple sub-modules.

[0095] The above disclosure is only a specific implementation scenario of the present invention, but the present invention is not limited thereto, and any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A high-temperature dust removal and denitrification integrated device, characterized in that: It comprises a smoke treatment component (1), wherein a denitration component (2) is provided at one end of the smoke treatment component (1), a delivery pipeline (12) is provided at the other end of the denitration component (2), and an ammonia injection grid (13) is provided at one side of the delivery pipeline (12); The surface wall of the denitration component (2) is provided with a plurality of transmission components (9); a corresponding maintenance door (10) is provided on one side of the denitration component (2) and the plurality of transmission components (9); the maintenance door (10) is tightly connected to the denitration component (2); the maintenance door (10) has good sealing performance; a plurality of transmission components (9) are provided with a protective component (8) inside the denitration component (2); a storage component (6) is provided at the bottom end of the protective component (8); a limiter component (7) is provided on one side of the storage component (6); a through groove (64) is provided at one end of the storage component (6) corresponding to the limiter component (7); The protection assembly (8) comprises a connection seat (82) connected to the transmission assembly (9), a protection plate (81) is provided above the connection seat (82), and a stopper (83) is provided at one end of the protection plate (81); The stopper (83) is located at the center of one end of the protective plate (81), and a magnet is embedded in the stopper (83). When the stopper (83) contacts the limit assembly (7), the limit assembly (7) is adsorbed by the magnet inside. When the transmission assembly (9) is running, the limit assembly (7) is driven to move by the magnet. The corresponding transmission component (9) is started to drive the protection component (8) inside the denitration component (2) to move, and the limit component (7) is driven to move during the movement of the protection component (8). When the transmission component (9) is at the maximum travel distance, the protection component (8) covers the storage component (6), and the through groove (64) on one side of the storage component (6) is exposed. The flue gas flows through the through groove (64) to catalyze, and the corresponding maintenance door (10) is opened to remove and replace the catalyst inside the storage component (6).

2. A high-temperature dust removal and denitrification integrated device according to claim 1, characterized in that: A catalyst module (19) is arranged inside the storage assembly (6), the storage assembly (6) comprises a storage box (61) for accommodating the catalyst module (19), and a storage groove (62) is arranged at a position corresponding to the catalyst module (19) in the storage box (61); Wherein, the storage box (61) is provided with a receiving platform (65) on one side of the limiting assembly (7), the length of the through groove (64) is smaller than the length of the receiving platform (65), and a baffle (63) is provided at one end of the receiving platform (65).

3. A high-temperature dust removal and denitrification integrated device according to claim 2, characterized in that: The transmission assembly (9) comprises a fixing seat (92) connected to the denitration assembly (2), a cylinder body (91) is provided at one end of the fixing seat (92), and a transmission shaft (93) is provided inside the cylinder body (91); The fixing seat (92) is located on one side of the denitration component (2) and is also provided with a connecting transverse plate for accommodating the protection component (8).

4. A high-temperature dust removal and denitrification integrated device according to claim 2, characterized in that: The limiting assembly (7) comprises a limiting plate (5), the length of the limiting plate (5) being smaller than the size of the receiving platform (65), a limiting hole (16) being provided at one end of the limiting plate (5), and the size of the limiting hole (16) being the same as the size of the baffle (63).

5. The high-temperature dust removal and denitrification integrated device according to claim 1, characterized in that: A flow guide box (11) is provided above the denitration component (2), the flow guide box (11) is connected to the delivery pipeline (12), and an air outlet pipe (4) is provided at the bottom end of the denitration component (2).

6. A high-temperature dust removal and denitrification integrated device according to claim 5, characterized in that: A rectifying grid (15) is provided at a position corresponding to the connection between the denitration component (2) and the guide box (11), and a sonic soot blower (14) is provided at the bottom end of the rectifying grid (15).

7. The high-temperature dust removal and denitrification integrated device according to claim 1, characterized in that: Sealing rings (20) are provided at corresponding positions of the denitration component (2) and the transmission component (9).

8. The high-temperature dust removal and denitrification integrated device according to claim 1, characterized in that: A gas outlet pipe is provided at one end of the smoke and dust treatment component (1), and an air inlet pipe (3) is provided at the other end of the smoke and dust treatment component (1); Wherein, a dust collecting hopper (17) is provided at the bottom end of the smoke dust treatment component (1), and a dust cleaning component (18) is provided at the bottom end of the dust collecting hopper (17).

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