Plate-type denitrification catalyst preparation device with low SO2 oxidation rate and high activity

Abstract

The application discloses a preparation process and system of a plate denitration catalyst with low SO2 oxidation rate and high activity, which comprises a U-shaped frame. Symmetrical driving assemblies are arranged at the two ends of the U-shaped frame, and a forming assembly and a groove forming assembly are driven to open and close through the driving assemblies. The groove forming assembly is sleeved in the forming assembly, and a material blocking frame is arranged between the groove forming assembly and the forming assembly. In the application, the nested groove forming assembly is driven to move by the driving assembly, so that a notch is formed in the formed raw pulp. During the movement of the nested groove forming assembly to the two ends, the groove forming assembly moves from the inside to the outside of the formed raw pulp in sequence, so that the stability of the formed raw pulp is maintained. Meanwhile, the forming assembly moves with the driving assembly fixedly connected to the forming assembly, so that the forming assembly separates the outside of the formed raw pulp, avoids adhesion between the forming assembly and the formed raw pulp, and prevents the formed raw pulp from being cut and damaged or being unable to be separated, thereby affecting the processing efficiency of the formed raw pulp.

Description

Technical Field

[0001] This invention relates to the field of environmental protection equipment technology, and in particular to a plate-type denitrification catalyst preparation device with low SO2 oxidation rate and high activity. Background Technology

[0002] Denitrification technology is currently the most widely used technology in China. Its working principle is that, under the action of a denitrification catalyst, the reducing agent ammonia selectively reduces nitrogen oxides to produce nitrogen and water, thereby purifying flue gas and reducing nitrogen oxide emissions.

[0003] For example, patent CN104071566B, entitled "A Raw Material Output Pushing Device for an SCR Plate-Type Denitrification Catalyst Production Line," with an authorization announcement date of November 23, 2016, includes a frame, a raw material extruder, a cutting cylinder, a cutting wire, a conveyor roller, a conveyor belt, a servo motor, first and second proximity sensors, a pushing cylinder, and a production line belt. The raw material extruder is located at one end of the frame, with a cutting cylinder support on one side. The cutting cylinder is mounted on the cutting cylinder support. The cutting wire is installed at the bottom of the cutting cylinder. The conveyor roller is pivotally connected to the frame. The conveyor belt is sleeved on the conveyor roller. The servo motor is connected to and drives one of the conveyor rollers. The first and second proximity sensors are respectively mounted on the frame. The pushing cylinder is located on one side of the frame, with a pushing plate connected to it. The production line belt is located at the bottom of the frame. The raw material output pushing device of this invention has many advantages such as simple structure, high degree of automation, and uniform cutting length. However, this patent cannot remove the formed pulp after the addition of fiber materials.

[0004] The shortcoming of the existing technology is that, in the process of extruding raw materials in the plate denitrification catalyst production line, the extruded raw materials can only be cut mechanically by means of a wire saw. This leads to the problem that after adding fiber raw materials to the existing materials, the wire saw cutting will damage the cut of the formed pulp, making it impossible to continue to use the wire saw for cutting. Summary of the Invention

[0005] The purpose of this invention is to provide a plate-type denitrification catalyst preparation device with low SO2 oxidation rate and high activity. The device uses a drive component to move a nested trough-forming component to form a groove inside the formed slurry. As the nested trough-forming component moves to both ends, it moves sequentially from the inside to the outside of the formed slurry to maintain the stability of the formed slurry. At the same time, the forming component moves with the drive component that is fixedly connected to it so that the forming component can separate the outside of the formed slurry, avoiding the forming component from the formed slurry from sticking together, which would cause the formed slurry to be cut and broken or unable to be separated, thus affecting the processing efficiency of the formed slurry.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: The first objective of this invention is to provide a process for preparing a plate-type denitrification catalyst with low SO2 oxidation rate and high activity. This catalyst is primarily composed of activated carbon, calcium ore, vanadium, and tungsten as raw materials, and high-tensile-strength fiber materials (polypropylene fiber, polyester fiber, polyamide fiber, high-strength high-modulus polyethylene fiber, aromatic polyamide fiber, polyacrylonitrile fiber, etc.), and is prepared through the following steps: Step 1: Crush activated carbon, calcium ore, vanadium and tungsten into powder particles, then dry mix the fiber material and add the binder for wet mixing and bonding; Step 2: Place the mixed slurry material from Step 1 into an extrusion device for aging, then extrude it from the extrusion device and shape it; Step 3: Drying and calcining. The shaped slurry obtained in Step 2 is dried and then calcined to obtain the plate-type denitrification catalyst.

[0007] The second objective of this invention is to provide a plate-type denitrification catalyst preparation device with low SO2 oxidation rate and high activity, comprising a U-shaped frame; driving components are symmetrically arranged at both ends of the U-shaped frame, which drive the opening and closing of the forming component and the tank-making component; the forming component is fitted inside the tank-making component; and a baffle is provided between the tank-making component and the forming component; the invention also includes an adjusting component, which elastically supports the movement of the two baffles; the raw slurry is squeezed in through the feed pipe fixed to the U-shaped frame, causing the two baffles to move in opposite directions, and the size of the formed raw slurry is controlled by the adjusting component. As a further description of the above technical solution: The drive assembly includes a mounting frame, one end of which is fixedly connected to an air pump, and one end of which is fixedly connected to a telescopic rod. The end of the telescopic rod away from the air pump is fixedly connected to a grooving assembly.

[0008] As a further description of the above technical solution: The groove-making assembly includes a strip frame, which is composed of multiple nested strip frames. A limiting component is provided between two strip frames. A connecting plate is fixedly connected to one end of each strip frame, and the connecting plate is fixedly connected to the telescopic rod.

[0009] As a further description of the above technical solution: The strip frame includes frame bars, and one end of each frame bar is fixedly connected to an array of grooved rods.

[0010] As a further description of the above technical solution: The limiting component includes a bracket, which is fixed on the strip frame, and a connecting column is fixedly connected between the two brackets.

[0011] As a further description of the above technical solution: The forming component includes a scraper, which has an L-shaped structure. The scraper has a discharge port at one end near the feed pipe, and a support bar is fixedly connected to the other end of the scraper, which is fixed to the connecting plate.

[0012] As a further description of the above technical solution: The adjustment assembly includes a baffle frame, which is sleeved on the groove rod. A connecting arm is fixedly connected to one end of the baffle frame, and a limiting plate is fixedly connected to the end of the connecting arm away from the baffle frame. A directional rod is provided through the two limiting plates, and a support spring is sleeved on the outside of the directional rod. Both ends of the support spring are fixedly connected to the limiting plates.

[0013] As a further description of the above technical solution: The limiting plate has a sleeve at one end, and a bolt rod is threadedly connected to one end of the sleeve, with one end of the bolt rod penetrating the limiting plate.

[0014] As a further description of the above technical solution: The baffle includes a baffle plate with an internal groove, and a groove rod is slidably connected to the internal groove. A frame is fixedly connected to the outside of the baffle plate.

[0015] This invention provides a plate-type denitrification catalyst preparation device with low SO2 oxidation rate and high activity, which has the following beneficial effects: In this invention, a driving component drives the nested grooving component to move, so that a groove is formed inside the molded slurry. As the nested grooving component moves to both ends, it moves sequentially from the inside to the outside of the molded slurry to maintain the stability of the molded slurry. At the same time, the molding component moves with the driving component that is fixedly connected to it, so that the molding component can separate the outside of the molded slurry and avoid the molding component from the molded slurry from sticking together, which would cause the molded slurry to be cut and broken or unable to be separated, thus affecting the processing efficiency of the molded slurry. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the plate-type denitrification catalyst preparation device with low SO2 oxidation rate and high activity proposed in this invention; Figure 2 This is a schematic diagram of the feed pipe structure in this invention; Figure 3 This is a schematic diagram of the forming component in this invention; Figure 4 In this invention Figure 3 A partial schematic diagram of point A in the middle; Figure 5 This is a schematic diagram of the structure of the adjustment component in this invention; Figure 6 This is a schematic diagram of the groove-making assembly in this invention; Figure 7 This is a schematic diagram of the material retainer structure in this invention; Figure 8 This is a schematic diagram of the connecting plate in this invention; Figure 9 This is a schematic diagram of the structure of the bar frame in this invention; Figure 10 In this invention Figure 9 A partial schematic diagram at point B in the middle; Figure 11 This is a schematic diagram of the driving component in this invention.

[0017] Legend: 1. U-shaped frame; 11. Feed pipe; 2. Forming component; 21. Scraper; 22. Discharge port; 23. Support bar; 3. Grooving component; 31. Strip frame; 311. Frame strip; 312. Grooving rod; 32. Limiting component; 321. Bracket; 322. Connecting column; 33. Connecting plate; 4. Adjusting component; 41. Material stop; 411. Baffle; 412. Internal groove; 413. Frame; 42. Connecting arm; 43. Limiting plate; 44. Support spring; 45. Directional rod; 46. Sleeve; 47. Bolt rod; 5. Drive component; 51. Air pump; 52. Mounting bracket; 53. Telescopic rod. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0019] Reference Figure 1-11A plate-type denitrification catalyst preparation device with low SO2 oxidation rate and high activity includes a U-shaped frame 1; drive components 5 are symmetrically arranged at both ends of the U-shaped frame 1, which drive the forming component 2 and the trough-forming component 3 to open and close. The forming component 2 is fitted with the trough-forming component 3, and a baffle 41 is provided between the trough-forming component 3 and the forming component 2; it also includes an adjustment component 4, which elastically supports the movement of the two baffles 41. The raw slurry is extruded through the feed pipe 11 fixed to the U-shaped frame 1, so that the two baffles 41 move in opposite directions, and the size of the formed raw slurry is controlled by the adjustment component 4; specifically, the top of the U-shaped frame 1 is fixedly connected to the feed pipe 11, which is located directly above the U-shaped frame 1 and connected to the outlet of an external extrusion device, through which the raw slurry is extruded into the forming component 2 and the trough-forming component 3. The raw slurry material is squeezed into the inner cavity formed by the groove component 3, causing the two baffles 41 to move towards both ends under force, so that the raw slurry can be formed between the baffles 41. When the baffles 41 move to the preset position of the adjusting component 4, the driving component 5 is activated, so that the driving component 5 drives the nested groove component 3 to move, so that the groove is formed inside the formed raw slurry. As the nested groove component 3 moves towards both ends, it moves from the inside to the outside of the formed raw slurry in sequence, so as to maintain the stability of the formed raw slurry. At the same time, the forming component 2 moves with the driving component 5 that is fixedly connected, so that the forming component 2 can separate the outside of the formed raw slurry, so as to avoid the forming component 2 from the formed raw slurry sticking together, which would cause the formed raw slurry to be cut and broken or unable to be separated, thus affecting the processing efficiency of the formed raw slurry. The drive assembly 5 includes a mounting frame 52, with an air pump 51 fixedly connected to one end of the mounting frame 52, and a telescopic rod 53 fixedly connected to one end of the air pump 51. The end of the telescopic rod 53 away from the air pump 51 is fixedly connected to the troughing assembly 3. Specifically, the air pump 51 in the drive assembly 5 is fixed in the mounting frame 52. The air pump 51 drives the telescopic rod 53 to move, so as to facilitate the separation of the molding pulp. This device has a simple structure, is flexible in use, and is worth promoting widely. The grooving assembly 3 includes a strip frame 31, which is composed of multiple nested strip frames 31. A limiting component 32 is provided between two strip frames 31. A connecting plate 33 is fixedly connected to one end of the strip frame 31, and the connecting plate 33 is fixedly connected to the telescopic rod 53. The strip frame 31 includes frame strips 311, and a grooving rod 312 is fixedly connected to one end of the frame strips 311 in an array. The limiting component 32 includes a bracket 321, which is fixed to the strip frame 31. A connecting post 322 is fixedly connected between two brackets 321. Specifically, the strip frames 31 in the grooving assembly 3 are nested, and the grooving rod 312 in the grooving assembly 3 is slidably connected to the baffle 41. The groove-making rod 312, which is fixedly connected to the frame strip 311 in the frame 31, is located in the reserved inner cavity of the forming component 2. A limiting component 32 is provided between the two strip frames 31. Two limiting plates 43 fixedly connected in the limiting component 32 clamp the nested strip frames 31 and improve the stability of the two limiting plates 43 through the connecting column 322. When the air pump 51 drives the connecting plate 33 to move through the telescopic rod 53, the nested strip frames 31 move from the inside to the outside in sequence, so that the forming slurry pulls the groove-making rod 312 away from the inside to the outside. This makes the forming slurry more stable during the separation of the groove-making rod 312, and it is less likely to cause the groove to collapse, thereby improving the yield of the forming slurry. The forming component 2 includes a scraper 21, which has an L-shaped structure. The scraper 21 has a discharge port 22 at one end near the feed pipe 11, and a support strip 23 is fixedly connected to the other end of the scraper 21. The support strip 23 is fixed on the connecting plate 33. Specifically, the scraper 21 in the forming component 2 is initially closed together. When the extruded slurry fills the inner cavity, it moves under the action of the drive component 5, so that the scraper 21 moves synchronously, so that the forming slurry adhering to the scraper 21 is separated and smoothed, which improves the efficiency of the forming slurry separation and the smoothness of its surface, improves the convenience of using the device, and has a simple structure and flexible use. The adjusting assembly 4 includes a baffle 41, which is sleeved on the grooving rod 312. A connecting arm 42 is fixedly connected to one end of the baffle 41, and a limiting plate 43 is fixedly connected to the end of the connecting arm 42 away from the baffle 41. A guiding rod 45 passes through between the two limiting plates 43, and a support spring 44 is sleeved on the outside of the guiding rod 45. Both ends of the support spring 44 are fixedly connected to the limiting plates 43. A sleeve 46 is provided at one end of the limiting plate 43, and a bolt rod 47 is threadedly connected to one end of the sleeve 46, with one end of the bolt rod 47 passing through the limiting plate 43. The baffle 41 includes a baffle 411, in which an internal groove 412 is formed, and the grooving rod 312 is slidably connected to the internal groove 412. 411 is fixedly connected to the outer side with a frame 413; specifically, the baffles 41 in the adjusting assembly 4 are respectively sleeved on the groove rod 312 and distributed at both ends of the discharge port 22. The rotating sleeve 46 and the threaded bolt rod 47 move to adjust the size of the pre-formed slurry. When the extrusion equipment squeezes the slurry into the forming assembly 2, the two baffles 41 move in opposite directions. At the same time, the support spring 44 located between the two baffles 41 is stressed, which makes the squeezed slurry more compact and increases the density of the forming slurry. The synchronous movement of the scraper 21 during the forming process facilitates the separation of the forming slurry adhered to by the baffles 41, avoiding the forming slurry from sticking to the baffles 41 and being unable to separate.

[0020] Working principle: A feed pipe 11 is fixedly connected to the top of the U-shaped frame 1. The feed pipe 11 is located directly above the U-shaped frame 1 and is connected to the outlet of the external extrusion equipment. The raw slurry material is extruded into the inner cavity formed by the forming component 2 and the grooving component 3 through the extrusion equipment, causing the two baffles 41 to move towards both ends under force, so that the raw slurry can be formed between the baffles 41. The strip frames 31 in the grooving component 3 are nested, and the grooving rod 312 in the grooving component 3 is slidably connected to the baffle 41. The grooving rod 312, which is fixedly connected to the frame strips 311 in the strip frames 31, is located in the reserved inner cavity of the forming component 2. A limiting component 32 is provided between the two strip frames 31. Two limiting plates 43 fixedly connected in the limiting component 32 clamp the nested strip frames 31, and the stability of the two limiting plates 43 is improved by the connecting column 322. When the air pump 51 is fixed, it drives the connecting plate 33 to move through the telescopic rod 53. During operation, the nested strip frame 31 moves sequentially from the inside to the outside, causing the forming slurry to pull away the groove-making rod 312 from the inside to the outside. This makes the forming slurry more stable during the separation of the groove-making rod 312, and less likely to cause the groove to collapse. When the baffle 41 moves to the preset position of the adjusting component 4, the driving component 5 is activated. The air pump 51 in the driving component 5 is fixed in the mounting frame 52. The air pump 51 drives the telescopic rod 53 to move. This causes the driving component 5 to drive the nested groove-making component 3 to move, so that a groove can be formed inside the forming slurry. As the nested groove-making component 3 moves to both ends, it moves sequentially from the inside to the outside of the forming slurry to maintain the stability of the forming slurry. At the same time, the forming component 2 moves with the fixedly connected driving component 5 so that the forming component 2 can separate the outside of the forming slurry, avoiding the forming component 2 from the forming slurry, which would cause the forming slurry to be cut and broken or unable to be separated.

[0021] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A plate-type denitrification catalyst preparation device with low SO2 oxidation rate and high activity, characterized in that, Including the U-shaped frame (1); The U-shaped frame (1) is symmetrically provided with driving components (5) at both ends. The driving components (5) drive the forming component (2) and the grooving component (3) to open and close. The forming component (2) is fitted with the grooving component (3). A baffle (41) is provided between the grooving component (3) and the forming component (2). The grooving assembly (3) includes a strip frame (31), which is composed of multiple nested strip frames (31). A limiting component (32) is provided between two strip frames (31). A connecting plate (33) is fixedly connected to one end of the strip frame (31), and the connecting plate (33) is fixedly connected to the telescopic rod (53). The strip frame (31) includes a frame strip (311), and a grooving rod (312) is fixedly connected to one end of the frame strip (311). The limiting component (32) includes a bracket (321), and the bracket (321) is fixed to the strip frame (31). A connecting column (322) is fixedly connected between two brackets (321). The strip frames (31) in the grooving assembly (3) are nested, and the grooving rod (312) in the grooving assembly (3) is slidably connected to the telescopic rod (53). On the baffle (41), the groove-making rod (312) is fixedly connected to the frame strip (311) in the strip frame (31) and is set in the reserved inner cavity of the forming component (2). A limiting component (32) is provided between the two strip frames (31). The two limiting plates (43) fixedly connected in the limiting component (32) clamp the nested strip frame (31) and improve the stability of the two limiting plates (43) through the connecting column (322). When the air pump (51) drives the connecting plate (33) to move through the telescopic rod (53), the nested strip frame (31) moves from the inside to the outside, so that the forming slurry pulls the groove-making rod (312) away from the inside to the outside, making the forming slurry more stable in the process of separating the groove-making rod (312), and less likely to cause the groove to collapse, thus improving the yield of the forming slurry processing. It also includes an adjustment component (4), which elastically supports the movement of the two baffles (41), and squeezes the raw slurry into the feed pipe (11) fixed by the U-shaped frame (1), so that the two baffles (41) move in opposite directions and the size of the formed raw slurry is controlled by the adjustment component (4); The catalyst is made from activated carbon, calcium ore, vanadium, and tungsten as raw materials, and is a high-tensile-strength fiber material prepared by the following steps: Step 1: The activated carbon, calcium ore, vanadium, and tungsten are crushed into powder particles, and then the fiber material is dry-mixed and wet-mixed with a binder; Step 2: The slurry material mixed in Step 1 is placed in an extrusion device for aging, and then extruded and shaped; Step 3: Drying and calcining: The shaped slurry obtained in Step 2 is dried, and then calcined to obtain the plate-type denitrification catalyst.

2. The plate-type denitrification catalyst preparation device with low SO2 oxidation rate and high activity according to claim 1, characterized in that, The fiber material is polypropylene fiber, polyester fiber, polyamide fiber, high-strength high-modulus polyethylene fiber, or polyacrylonitrile fiber.

3. The plate-type denitrification catalyst preparation device with low SO2 oxidation rate and high activity according to claim 2, characterized in that, The polyamide fiber is an aromatic polyamide fiber.

4. The plate-type denitrification catalyst preparation device with low SO2 oxidation rate and high activity according to claim 1, characterized in that, The drive assembly (5) includes a mounting bracket (52), one end of which is fixedly connected to an air pump (51), one end of which is fixedly connected to a telescopic rod (53), and the end of the telescopic rod (53) away from the air pump (51) is fixedly connected to a grooving assembly (3).

5. The plate-type denitrification catalyst preparation device with low SO2 oxidation rate and high activity according to claim 1, characterized in that, The forming component (2) includes a scraper (21) and the scraper (21) has an L-shaped structure. The scraper (21) has a discharge port (22) at one end near the feed pipe (11). The other end of the scraper (21) is fixedly connected to a support strip (23), and the support strip (23) is fixed on the connecting plate (33).

6. The plate-type denitrification catalyst preparation device with low SO2 oxidation rate and high activity according to claim 1, characterized in that, The adjustment component (4) includes a baffle (41) and the baffle (41) is sleeved on the groove rod (312). One end of the baffle (41) is fixedly connected to a connecting arm (42). The end of the connecting arm (42) away from the baffle (41) is fixedly connected to a limiting plate (43). A directional rod (45) is provided through the two limiting plates (43). A support spring (44) is sleeved on the outside of the directional rod (45), and both ends of the support spring (44) are fixedly connected to the limiting plate (43).

7. The plate-type denitrification catalyst preparation device with low SO2 oxidation rate and high activity according to claim 6, characterized in that, The limiting plate (43) has a sleeve (46) at one end, and a bolt rod (47) is threadedly connected to one end of the sleeve (46), and one end of the bolt rod (47) passes through the limiting plate (43).

8. The plate-type denitrification catalyst preparation device with low SO2 oxidation rate and high activity according to claim 1, characterized in that, The baffle (41) includes a baffle (411), the baffle (411) has an internal groove (412) and the internal groove (412) is slidably connected to a groove rod (312), and the baffle (411) has a frame (413) fixedly connected to the outside.

Images