A filter device for producing dilute nitric acid

Abstract

This utility model discloses a filtration device for dilute nitric acid production, relating to the technical field of filtration devices. The utility model includes a tank body, and further includes: a disassembly section disposed within the tank body; and a configuration section disposed on the outer wall of the tank body; wherein the tank body has an open-top structure, with its top in an open state. By incorporating the disassembly section, when cleaning the interior of the filtration device, two hydraulic push rods can be simultaneously activated to remove the top cover and the entire filtration device from the tank body. After removal, to disassemble the filter cartridge separately, simply pull out the pin fixed to the arc-shaped groove turntable. Once the pin is pulled out, the arc-shaped groove turntable can rotate freely, thereby causing multiple locking blocks slidably connected to the mounting plate to converge inward, releasing the restriction on the filter cartridge and facilitating its removal from the mounting plate. This design greatly improves the maintainability of the filtration device and effectively solves the problem of difficult cleaning of traditional closed devices.

Description

Technical Field

[0001] This utility model belongs to the technical field of filtration devices, and in particular relates to a filtration device for the production of dilute nitric acid. Background Technology

[0002] A filtration device for dilute nitric acid production is used to filter raw materials, intermediate products, or finished products during the production process. Its function is to remove solid impurities, suspended solids, or other insoluble particles. In dilute nitric acid production, filtration devices are mainly used because the raw gas may contain impurities such as dust and catalyst powder. If these impurities are not removed, they will affect the efficiency of subsequent reactions and product quality, and may also clog pipelines and damage equipment. Filtration devices can effectively purify materials, ensuring the smooth progress of the production process and the purity of the product.

[0003] However, in the process of using existing dilute nitric acid filtration devices, because the device is in a closed state, it is difficult for operators to access the filter elements and the inside of the tank. As a result, the residual dilute nitric acid and impurities are not easy to remove. This situation not only increases the difficulty of cleaning, but also affects the subsequent filtration effect due to the residue of impurities. Utility Model Content

[0004] The purpose of this utility model is to provide a filtration device for the production of dilute nitric acid. By setting up a disassembly part, it solves the problem that because the device is in a closed state, it is difficult for operators to access the filter elements and the inside of the tank, making it difficult to remove residual dilute nitric acid and impurities. This not only increases the difficulty of cleaning, but also affects the subsequent filtration effect due to the residue of impurities.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a filtration device for the production of dilute nitric acid, comprising a tank and further comprising: The tank includes a disassembly section disposed inside the tank body and a configuration section disposed on the outer wall of the tank body; wherein the tank body is an open-top structure with its top in an open state.

[0006] Furthermore, the disassembly section includes a removal assembly, which is mounted on the disassembly section. The removal assembly includes a top cover slidably connected to the top of the tank. A mounting plate is fixedly connected to the bottom of the top cover. The top of the mounting plate has several slots, and filter cartridges are slidably connected to the inner walls of the slots. The top of the mounting plate has several mounting grooves, and locking blocks are slidably connected to the inner walls of the grooves. The locking blocks extend into the filter cartridges and are slidably connected to them. An arc-shaped groove turntable is rotatably connected to the top of the mounting plate. The tops of the locking blocks extend into the arc-shaped groove turntable and are slidably connected to it. A pin is slidably connected to the arc-shaped groove turntable. A lifting component is provided on the outer wall of the tank. The bottom end of the pin extends into the mounting plate and is slidably connected to it.

[0007] Furthermore, the sealing assembly is installed inside the tank and includes a sealing ring sleeved on the outer wall of the filter cylinder. The inner wall of the tank is fixedly connected with a sealing groove, and the sealing ring is adapted to the sealing groove. The outer wall of the filter cylinder is provided with a plurality of liquid inlets and a plurality of filter holes; wherein, there are four liquid inlets, which are distributed in an array around the filter cylinder.

[0008] Furthermore, the configuration unit includes a cleaning assembly, which is mounted on the removal assembly. The cleaning assembly includes a motor fixedly connected to the top of the top cover. The output shaft of the motor is fixedly connected to a rotating shaft via a coupling. A scraper is sleeved on the outer wall of the rotating shaft, and the scraper abuts against the filter cartridge. The rotating shafts all penetrate the top cover and the arc-shaped groove turntable and are rotatably connected to the top cover and the arc-shaped groove turntable.

[0009] Furthermore, the configuration component is installed on the outer wall of the tank; wherein, the cleaning component is located inside the tank, the configuration component includes an inlet pipe fixedly connected to the outer wall of the tank, an outlet pipe fixedly connected to the outer wall of the tank, and a valve provided on the outlet pipe; wherein, both the inlet pipe and the outlet pipe are connected to the tank.

[0010] This utility model has the following beneficial effects: 1. By setting up a disassembly section, if it is necessary to clean the inside of the filter device, two hydraulic push rods can be activated simultaneously to remove the top cover and the entire filter device from the tank. After the removal operation is completed, if the filter cartridge needs to be disassembled separately, simply pull out the pin fixed on the arc-shaped groove turntable. After the pin is pulled out, the arc-shaped groove turntable can rotate freely, thereby driving multiple locking blocks that are slidably connected to the mounting plate to converge inward, releasing the restriction on the filter cartridge, making it easy to remove it from the mounting plate. This design greatly improves the maintainability of the filter device and effectively solves the problem of difficult cleaning of traditional closed devices. 2. With the configuration unit in place, dilute nitric acid liquid is introduced into the tank through the inlet pipe during use. Due to the tight fit between the sealing ring on the outer wall of the filter cartridge and the sealing groove on the inner wall of the tank, the tank is divided into upper and lower spaces. After entering the tank, the dilute nitric acid liquid is located in the upper space and flows into the filter cartridge through multiple inlets on the outer wall of the filter cartridge. At this time, the filter cartridge in the lower space starts to function with the filter holes on its outer wall, filtering the dilute nitric acid liquid flowing into the interior. During the filtration process, solid impurities are intercepted in the filter cartridge, while the liquid flows smoothly into the lower space and is finally discharged through the outlet pipe. In addition, when using the filter cartridge for filtration, the motor can be started. The motor will drive the scraper to rotate inside the filter cartridge through the rotating shaft, promptly scraping away impurities clogging the filter holes and effectively preventing the filtration effect from being affected by the accumulation of impurities.

[0011] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial cross-sectional view of the disassembly part of this utility model; Figure 3 This is a partial cross-sectional view of the configuration part of this utility model; Figure 4 This utility model Figure 2 A magnified structural diagram of A in the middle; Figure 5 This utility model Figure 3 A magnified structural diagram of B in the diagram.

[0014] The attached diagram lists the components represented by each number as follows: 1. Tank body; 2. Disassembly unit; 21. Removal assembly; 211. Top cover; 212. Mounting plate; 213. Slot; 214. Filter cartridge; 215. Mounting groove; 216. Locking block; 217. Arc-shaped groove turntable; 218. Pin; 219. Fixing block; 220. Hydraulic push rod; 22. Sealing assembly; 221. Sealing ring; 222. Sealing groove; 223. Liquid inlet; 224. Filter hole; 3. Configuration unit; 31. Cleaning assembly; 311. Motor; 312. Rotating shaft; 313. Scraper; 32. Configuration assembly; 321. Liquid inlet pipe; 322. Liquid outlet pipe; 323. Valve. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-5 As shown, this utility model is a filtration device for the production of dilute nitric acid, including a tank body 1, and further including: a disassembly part 2, which is disposed inside the tank body 1; and a configuration part 3, which is disposed on the outer wall of the tank body 1; wherein, the tank body 1 has a top open structure and its top is in an open state.

[0017] The disassembly unit 2 includes a disassembly assembly 21, which is installed on the disassembly unit 2; and a sealing assembly 22, which is installed inside the tank body 1. The disassembly assembly 21 includes a top cover 211 slidably connected to the top of the tank body 1, a mounting plate 212 fixedly connected to the bottom of the top cover 211, a plurality of slots 213 formed on the top of the mounting plate 212, a filter cartridge 214 slidably connected to the inner wall of the plurality of slots 213, a plurality of mounting grooves 215 formed on the top of the mounting plate 212, and a locking block 216 slidably connected to the inner wall of each of the plurality of mounting grooves 215. All blocks 216 extend into the filter cylinder 214 and are slidably connected to it. An arc-shaped groove turntable 217 is rotatably connected to the top of the mounting plate 212. The tops of several locking blocks 216 extend into the arc-shaped groove turntable 217 and are slidably connected to it. A pin 218 is slidably connected to the arc-shaped groove turntable 217. A lifting component is provided on the outer wall of the tank body 1. The bottom end of the pin 218 extends into the mounting plate 212 and is slidably connected to it. The sealing assembly 22 includes a sealing ring 221 fitted onto the outer wall of the filter cylinder 214. The inner wall of the tank body 1... The filter cylinder 214 is fixedly connected to a sealing groove 222, and the sealing ring 221 is adapted to the sealing groove 222. The outer wall of the filter cylinder 214 is provided with several liquid inlets 223 and several filter holes 224; four liquid inlets 223 are provided and arranged in an array around the filter cylinder 214. The lifting component includes two fixing blocks 219 fixedly connected to the outer wall of the tank 1. A hydraulic push rod 220 is fixedly connected to the top of each fixing block 219, and the output ends of both hydraulic push rods 220 are fixedly connected to the top cover 211. By providing a disassembly part 2, the filter can be opened simultaneously if it is necessary to clean the inside of the filter device. By moving two hydraulic push rods 220, the top cover 211 and the filter device as a whole are removed from the tank 1. After the removal operation is completed, if the filter cartridge 214 needs to be disassembled separately, simply pull out the pin 218 fixed on the arc-shaped groove turntable 217. After the pin is pulled out, the arc-shaped groove turntable 217 can rotate freely, thereby driving multiple locking blocks 216 that are slidably connected to the mounting plate 212 to converge inward, releasing the restriction on the filter cartridge 214, making it easy to remove it from the mounting plate 212. This design greatly improves the maintainability of the filter device and effectively solves the problem of difficult cleaning of traditional closed devices.

[0018] Configuration unit 3 includes a cleaning assembly 31, which is mounted on the removal assembly 21; and a configuration assembly 32, which is mounted on the outer wall of the tank 1. The cleaning assembly 31 is located inside the tank 1 and includes a motor 311 fixedly connected to the top of the top cover 211. The output shaft of the motor 311 is fixedly connected to a rotating shaft 312 via a coupling. A scraper 313 is sleeved on the outer wall of the rotating shaft 312, and the scraper 313 is connected to the filter cartridge 214. The components are in conflict; the rotating shafts 312 all penetrate the top cover 211 and the arc-shaped groove turntable 217 and are rotatably connected to the top cover 211 and the arc-shaped groove turntable 217. The configuration component 32 includes an inlet pipe 321 fixedly connected to the outer wall of the tank body 1, and an outlet pipe 322 fixedly connected to the outer wall of the tank body 1. A valve 323 is provided on the outlet pipe 322. The inlet pipe 321 and the outlet pipe 322 are both connected to the tank body 1. By setting the configuration component 3, during use, the inlet pipe 321 is used to connect the outlet pipe 322 to the tank body 1. 21. Dilute nitric acid liquid is introduced into tank 1. Since the sealing ring 221 on the outer wall of filter cylinder 214 is tightly fitted with the sealing groove 222 on the inner wall of tank 1, the interior of tank 1 is divided into upper and lower spaces. After entering tank 1, the dilute nitric acid liquid is located in the upper space and flows into the interior of filter cylinder 214 through multiple inlets 223 on the outer wall of filter cylinder 214. At this time, the filter holes 224 on the outer wall of filter cylinder 214, which is located in the lower space, begin to function, filtering the dilute nitric acid liquid flowing into the interior. During the filtration process, solid impurities are intercepted in filter cylinder 214, while the liquid flows smoothly into the lower space and is finally discharged through outlet pipe 322. In addition, when using filter cylinder 214 for filtration, motor 311 can also be started. Motor 311 will drive scraper 313 to rotate in filter cylinder 214 through rotating shaft 312, promptly scraping off impurities blocked on filter holes 224, effectively avoiding the impact of impurity accumulation on the filtration effect.

[0019] One specific application of this embodiment is as follows: During use, dilute nitric acid liquid is introduced into the tank 1 through the inlet pipe 321. Because the sealing ring 221 on the outer wall of the filter cylinder 214 is tightly fitted with the sealing groove 222 on the inner wall of the tank 1, the interior of the tank 1 is divided into upper and lower spaces. After entering the tank 1, the dilute nitric acid liquid is located in the upper space and flows into the filter cylinder 214 through multiple inlets 223 on the outer wall of the filter cylinder 214. At this time, the filter holes 224 on the outer wall of the filter cylinder 214, located in the lower space, begin to function, filtering the dilute nitric acid liquid flowing into it. During the filtration process, solid impurities are intercepted inside the filter cylinder 214, while the liquid flows smoothly into the lower space and is finally discharged through the outlet pipe 322. Furthermore, when using the filter cylinder 214 for filtration, the motor 311 can also be started. The 11 mechanism uses a rotating shaft 312 to drive a scraper 313 to rotate inside the filter cylinder 214, promptly scraping away impurities clogging the filter holes 224 and effectively preventing impurity accumulation from affecting the filtration effect. If it is necessary to clean the inside of the filter device, two hydraulic push rods 220 can be activated simultaneously to remove the top cover 211 and the entire filter device from the tank 1. After the removal operation is completed, if the filter cylinder 214 needs to be disassembled separately, simply pull out the pin 218 fixed on the arc-shaped groove turntable 217. After the pin is pulled out, the arc-shaped groove turntable 217 can rotate freely, thereby driving multiple locking blocks 216 that are slidably connected to the mounting plate 212 to converge inward, releasing the restriction on the filter cylinder 214 and making it easy to remove it from the mounting plate 212. This design greatly improves the maintainability of the filter device and effectively solves the problem of difficult cleaning of traditional closed devices.

[0020] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0021] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A filtration device for the production of dilute nitric acid, comprising a tank (1), characterized in that, Also includes: Disassembly section (2), wherein the disassembly section (2) is disposed inside the tank body (1); as well as Configuration section (3), the configuration section (3) is provided on the outer wall of the tank body (1); Among them, the tank (1) is an open-top structure, and its top is open; The disassembly section (2) includes a disassembly assembly (21) mounted on the disassembly section (2); and A sealing assembly (22) is installed inside the tank body (1); The configuration unit (3) includes a cleaning component (31) mounted on the removal component (21); and Configuration component (32) is mounted on the outer wall of tank body (1); The cleaning component (31) is located inside the tank (1); The dismantling assembly (21) includes a top cover (211) slidably connected to the top of the tank (1). A mounting plate (212) is fixedly connected to the bottom of the top cover (211). The top of the mounting plate (212) has several slots (213). A filter cartridge (214) is slidably connected to the inner wall of the slots (213). The top of the mounting plate (212) has several mounting grooves (215). A locking block is slidably connected to the inner wall of each mounting groove (215). (216), several of the said locking blocks (216) extend into the filter cylinder (214) and are slidably connected to the filter cylinder (214). The top of the mounting plate (212) is rotatably connected to the arc-shaped groove turntable (217). The top of several of the said locking blocks (216) extends into the arc-shaped groove turntable (217) and is slidably connected to the arc-shaped groove turntable (217). A pin (218) is slidably connected to the arc-shaped groove turntable (217). The outer wall of the tank (1) is provided with a lifting component. The bottom end of the pin (218) extends into the mounting plate (212) and is slidably connected to the mounting plate (212).

2. The filtration device for dilute nitric acid production according to claim 1, characterized in that, The sealing assembly (22) includes a sealing ring (221) sleeved on the outer wall of the filter cylinder (214), and a sealing groove (222) is fixedly connected to the inner wall of the tank (1). The sealing ring (221) is adapted to the sealing groove (222). The outer wall of the filter cylinder (214) is provided with a plurality of liquid inlets (223) and a plurality of filter holes (224). The liquid inlet (223) has four openings, which are arranged in an array around the filter cylinder (214).

3. A filtration device for dilute nitric acid production according to claim 2, characterized in that, The cleaning assembly (31) includes a motor (311) fixedly connected to the top of the top cover (211). The output shaft of the motor (311) is fixedly connected to a rotating shaft (312) via a coupling. A scraper (313) is sleeved on the outer wall of the rotating shaft (312). The scraper (313) abuts against the filter cartridge (214). Among them, the rotating shaft (312) passes through the top cover (211) and the arc-shaped groove turntable (217) and is rotatably connected to the top cover (211) and the arc-shaped groove turntable (217).

4. A filtration device for dilute nitric acid production according to claim 3, characterized in that, The configuration component (32) includes an inlet pipe (321) fixedly connected to the outer wall of the tank (1), an outlet pipe (322) fixedly connected to the outer wall of the tank (1), and a valve (323) provided on the outlet pipe (322). The inlet pipe (321) and outlet pipe (322) are both connected to the tank body (1).

5. A filtration device for dilute nitric acid production according to claim 4, characterized in that, The lifting component includes two fixed blocks (219) fixedly connected to the outer wall of the tank (1). The top of each of the two fixed blocks (219) is fixedly connected to a hydraulic push rod (220), and the output ends of the two hydraulic push rods (220) are fixedly connected to the top cover (211).

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