Liquid ammonia cleaning device for urea

Abstract

The liquid ammonia cleaning device for the urea comprises a cleaning assembly, an impurity monitoring assembly, top limiting assemblies and lifting assemblies, the impurity monitoring assembly is arranged at the bottom of the cleaning assembly, the top limiting assemblies are arranged on the two sides of the top of the cleaning assembly, the lifting assemblies are arranged on the two sides of the cleaning assembly, and the top limiting assemblies are arranged on the two sides of the cleaning assembly. The cleaning assembly comprises a containing box, a bottom plate, a first sealing ring, an annular clamping groove, a second sealing ring, a discharging groove, a discharging pipe and a filter screen cover, and the impurity monitoring assembly comprises a workbench, a sealing door, a material storage box, a sealing sliding plate, a first spring, a positioning rod, a positioning sleeve and a pressure sensor. The liquid ammonia cleaning device for urea has the advantages of being convenient to clean and having a monitoring function, and solves the problems that a cleaning device in the prior art is inconvenient to clean a filter screen and does not have a monitoring function when impurities are accumulated to a certain amount.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid nitrogen filtering cleaning technical field, concretely relates to a liquid ammonia cleaning device for urea. BACKGROUND

[0002] Urea, also known as urea, carbamide, chemical formula is CH4N2O or CO(NH2)2, is a white crystal, no taste and no smell, easy to dissolve in water, ethanol and benzene, slightly soluble in diethyl ether, chloroform, urea is one of the simplest organic compounds, is the main nitrogen-containing end product of protein metabolism decomposition in mammals and some fish, can be used as chemical fertilizer, animal feed, explosives, glue stabilizer and chemical raw material etc.

[0003] In the production process of urea, liquid ammonia as the main raw material, its quality has great influence on the quality of urea product, the existing synthetic ammonia technology mainly utilizes coal or natural gas as raw material to prepare ammonia gas, the produced ammonia gas often has impurities, ammonia gas is liquid ammonia when storing, and needs to be cleaned of impurities when using, the cleaning device of the prior art is inconvenient to clean the filter screen, and does not have monitoring function when impurities accumulate to a certain amount, therefore, a liquid ammonia cleaning device for urea is needed to overcome the above defects. UTILITY MODEL CONTENT

[0004] The utility model discloses a liquid ammonia cleaning device for urea, which has the advantages of convenient cleaning and monitoring function, thereby solving the problems in the background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: a liquid ammonia cleaning device for urea, including cleaning assembly, impurity monitoring assembly, top limiting assembly and lifting assembly, the impurity monitoring assembly is arranged at the bottom of the cleaning assembly, the top limiting assembly is evenly arranged at the both sides of the top of the cleaning assembly, the lifting assembly is evenly arranged at the both sides of the cleaning assembly, the cleaning assembly includes containing box, bottom plate, first sealing ring, annular clamping groove, second sealing ring, discharge chute, discharge pipe and filter screen cover, the impurity monitoring assembly includes workbench, sealing door, storage tank, sealing sliding plate, first spring, positioning rod, positioning sleeve and pressure sensor, the top limiting assembly includes fixed seat, first sliding groove, second spring, T-shaped frame and first sliding block, the lifting assembly includes connecting rod, second sliding groove, second sliding block, threaded rod, motor and clamping rod.

[0006] Further, the containing box is arranged on the top of the bottom plate, the second sealing ring is fixedly installed on the top of the bottom plate, the filter screen cover is arranged in the inner cavity of the second sealing ring, the discharge chutes are formed on the both sides of the inside of the bottom plate, and the annular clamping groove is formed on the bottom of the containing box.

[0007] Furthermore, the first sealing ring is disposed in the inner cavity of the annular groove, the bottom of the annular groove is fixedly connected to the top of the base plate, and the discharge pipe is disposed in the inner cavity of the filter screen cover through the third sealing ring, and the surface of the discharge pipe is fixedly connected to the interior of the receiving box.

[0008] Furthermore, the fixing seats are all connected to both sides of the top of the receiving box, the second spring is fixedly installed in the inner cavity of the fixing seat, the T-shaped frame is fixedly installed at the bottom of the second spring, the bottom of the T-shaped frame contacts the top of the filter screen cover, and the bottom of the first sealing ring is fixedly connected to the top of the base plate.

[0009] Furthermore, the first slide grooves are all opened on both sides of the inner cavity of the fixed seat, the first slider slides in the inner cavity of the first slide groove, the side of the first slider that is relatively close to each other is fixedly connected to both sides of the T-shaped frame, the storage box is fixedly installed at the bottom of the base plate, and the sealing door is movably connected to the right side of the storage box through a hinge.

[0010] Furthermore, the sealing slide plate is disposed in the inner cavity of the storage box, the first springs are fixedly installed on both sides of the bottom of the sealing slide plate, the bottom of the first springs are fixedly connected to the bottom of the inner cavity of the storage box, and the positioning sleeve is fixedly installed at the center of the bottom of the storage box.

[0011] Furthermore, the pressure sensor is fixedly installed at the bottom of the inner cavity of the positioning sleeve, the positioning rod slides in the inner cavity of the positioning sleeve, the top of the positioning rod is fixedly connected to the bottom of the sealing slide plate, and the worktable is fixedly installed at the bottom of the storage box.

[0012] Furthermore, the clamping rods are all fixedly installed on both sides of the receiving box, the second sliding groove is opened inside the clamping rod, the second slider slides in the inner cavity of the second sliding groove, and the threaded rod rotates inside the second slider through the thread.

[0013] Furthermore, the motor is fixedly installed on the top of the lever, the output shaft of the motor passes through the inner cavity of the second slide groove and is fixedly connected to the top of the threaded rod, the connecting rod is fixedly installed on the bottom of the second slider, and the bottom of the connecting rod is fixedly connected to the top of the base plate.

[0014] In summary, due to the adoption of the above-mentioned technologies, the beneficial effects of this utility model are:

[0015] This invention uses a cleaning component to filter and clean liquid nitrogen, an impurity monitoring component to collect and monitor impurities in the liquid nitrogen, a top limiting component to limit the top of the filter screen, and a lifting component to adjust the height of the cleaning component. In use, liquid nitrogen enters the inner cavity of the receiving tank through a guide pipe, where it is filtered for impurities by the filter screen. Heavier impurities are discharged into the inner cavity of the storage tank through a discharge chute. The filtered liquid nitrogen is discharged through a discharge pipe. Impurities accumulate on the top of the sealing slide plate until they reach a certain weight, causing the sealing slide plate and positioning rod to move downwards, monitored by a pressure sensor. When cleaning the filter screen, ensuring the inner cavity of the receiving tank is free of liquid nitrogen, the motor is turned on, driving the threaded rod to rotate and causing the locking rod to move the receiving tank upwards, allowing the filter screen to be exposed. This facilitates cleaning of the inner wall of the receiving tank and replacement of the filter screen. It offers the advantages of convenient cleaning and monitoring functionality, solving the problems of existing cleaning devices that are inconvenient for cleaning the filter screen and lack monitoring functionality when impurities accumulate to a certain amount. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the cleaning component structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the lifting component of this utility model;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the impurity monitoring component of this utility model;

[0020] Figure 5 This is a schematic diagram of the cross-sectional structure of the top limiting component of this utility model;

[0021] In the diagram: 1. Cleaning component; 11. Receiving box; 12. Base plate; 13. First sealing ring; 14. Annular groove; 15. Second sealing ring; 16. Discharge chute; 17. Discharge pipe; 18. Filter screen cover; 2. Impurity monitoring component; 21. Workbench; 22. Sealing door; 23. Storage box; 24. Sealing slide plate; 25. First spring; 26. Positioning rod; 27. Positioning sleeve; 28. Pressure sensor; 3. Top limiting component; 31. Fixed seat; 32. First slide groove; 33. Second spring; 34. T-shaped frame; 35. First slider; 4. Lifting component; 41. Connecting rod; 42. Second slide groove; 43. Second slider; 44. Threaded rod; 45. Motor; 46. Locking rod. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0023] This utility model provides, for example Figures 1-5 As shown, a liquid ammonia cleaning device for urea includes a cleaning component 1, an impurity monitoring component 2, a top limiting component 3, and a lifting component 4. The impurity monitoring component 2 is located at the bottom of the cleaning component 1. The top limiting components 3 are located on both sides of the top of the cleaning component 1. The lifting components 4 are located on both sides of the cleaning component 1. The cleaning component 1 includes a receiving box 11, a bottom plate 12, a first sealing ring 13, an annular groove 14, a second sealing ring 15, a discharge chute 16, a discharge pipe 17, and a filter screen 18. The impurity monitoring component 2 includes a workbench 21, a sealing door 22, a storage box 23, a sealing slide plate 24, a first spring 25, a positioning rod 26, a positioning sleeve 27, and a pressure sensor 28. The top limiting component 3 includes a fixed seat 31, a first sliding groove 32, a second spring 33, a T-shaped frame 34, and a first slider 35. The lifting component 4 includes a connecting rod 41, a second sliding groove 42, a second slider 43, a threaded rod 44, a motor 45, and a locking rod 46.

[0024] More specifically, the position and height of the cleaning component 1 are adjusted by setting the lifting component 4. During use, liquid nitrogen enters the inner cavity of the receiving box 11 through the guide pipe. Under the action of the filter screen 18, impurities are filtered. Heavier impurities are introduced into the inner cavity of the storage box 23 through the discharge chute 16. The filtered liquid nitrogen is discharged through the discharge pipe 17. After the impurities accumulate to a certain weight on the top of the sealing slide plate 24, they drive the sealing slide plate 24 and the positioning rod 26 to move downward. The pressure sensor 28 monitors the movement. When cleaning the filter screen 18, the inner cavity of the receiving box 11 is kept free of liquid nitrogen. The motor 45 is turned on, which drives the threaded rod 44 to rotate and causes the locking rod 46 to move the receiving box 11 upward, allowing the filter screen 18 to be exposed. This facilitates the cleaning of the inner wall of the receiving box 11 and the replacement of the filter screen 18. It has the advantages of convenient cleaning and monitoring function.

[0025] In some embodiments, the receiving box 11 is disposed on the top of the base plate 12, the second sealing ring 15 is fixedly installed on the top of the base plate 12, the filter screen 18 is disposed in the inner cavity of the second sealing ring 15, the discharge grooves 16 are all opened on both sides inside the base plate 12, and the annular groove 14 is opened at the bottom of the receiving box 11. More specifically, the filter screen 18 is used to filter and clean impurities in liquid nitrogen, and the annular groove 14 is used to limit the first sealing ring 13.

[0026] In some embodiments, the first sealing ring 13 is disposed in the inner cavity of the annular groove 14, the bottom of the annular groove 14 is fixedly connected to the top of the base plate 12, the discharge pipe 17 is disposed in the inner cavity of the filter screen cover 18 through the third sealing ring, and the surface of the discharge pipe 17 is fixedly connected to the interior of the receiving box 11. More specifically, by setting the first sealing ring 13 to seal the inner cavity of the annular groove 14, the gap between the receiving box 11 and the base plate 12 is indirectly sealed, and liquid nitrogen is discharged by setting the discharge pipe 17.

[0027] In some embodiments, the fixing bases 31 are connected to both sides of the top of the receiving box 11, the second spring 33 is fixedly installed in the inner cavity of the fixing base 31, the T-shaped frame 34 is fixedly installed at the bottom of the second spring 33, the bottom of the T-shaped frame 34 contacts the top of the filter screen cover 18, and the bottom of the first sealing ring 13 is fixedly connected to the top of the base plate 12. More specifically, the T-shaped frame 34 is reset by setting the second spring 33.

[0028] In some embodiments, the first slide groove 32 is formed on both sides of the inner cavity of the fixed base 31, the first slider 35 slides in the inner cavity of the first slide groove 32, the side of the first slider 35 that is relatively close to each other is fixedly connected to both sides of the T-shaped frame 34, the storage box 23 is fixedly installed at the bottom of the base plate 12, and the sealing door 22 is movably connected to the right side of the storage box 23 by a hinge. More specifically, the first slide groove 32 is used to limit the first slider 35 to prevent the first slider 35 from shaking during movement, and the first slider 35 is used to limit the T-shaped frame 34 to prevent the T-shaped frame 34 from shaking during movement.

[0029] In some embodiments, the sealing slide plate 24 is disposed in the inner cavity of the storage box 23, and the first springs 25 are fixedly installed on both sides of the bottom of the sealing slide plate 24. The bottom of the first springs 25 is fixedly connected to the bottom of the inner cavity of the storage box 23, and the positioning sleeve 27 is fixedly installed at the center of the bottom of the storage box 23. More specifically, the sealing slide plate 24 is used to lift impurities, and the first springs 25 are used to reset the sealing slide plate 24.

[0030] In some embodiments, the pressure sensor 28 is fixedly installed at the bottom of the inner cavity of the positioning sleeve 27, the positioning rod 26 slides in the inner cavity of the positioning sleeve 27, the top of the positioning rod 26 is fixedly connected to the bottom of the sealing slide plate 24, and the worktable 21 is fixedly installed at the bottom of the storage box 23. More specifically, the pressure sensor 28 is used to monitor the pressure on the sealing slide plate 24, and the positioning sleeve 27 is used to limit the positioning rod 26 to prevent the positioning rod 26 from shaking during movement.

[0031] In some embodiments, the locking rods 46 are fixedly installed on both sides of the receiving box 11, the second slide groove 42 is opened inside the locking rod 46, the second slider 43 slides in the inner cavity of the second slide groove 42, and the threaded rod 44 rotates inside the second slider 43 by thread. More specifically, the second slide groove 42 is used to limit the second slider 43 to prevent the second slider 43 from shaking during movement, and the connecting rod 41 is used to connect and fix the bottom of the second slider 43 to the top of the base plate 12.

[0032] In some embodiments, the motor 45 is fixedly mounted on the top of the clamping rod 46, the output shaft of the motor 45 passes through the inner cavity of the second slide groove 42 and is fixedly connected to the top of the threaded rod 44, the connecting rod 41 is fixedly mounted on the bottom of the second slider 43, and the bottom of the connecting rod 41 is fixedly connected to the top of the base plate 12. More specifically, the position of the clamping rod 46 is indirectly adjusted by driving the threaded rod 44 with the motor 45.

[0033] Working principle:

[0034] Step 1: During use, liquid nitrogen enters the inner cavity of the container 11 through the guide pipe. Under the action of the filter screen 18, impurities are filtered. Heavier impurities are introduced into the inner cavity of the storage tank 23 through the discharge chute 16. The filtered liquid nitrogen is discharged through the discharge pipe 17. After the impurities accumulate to a certain weight on the top of the sealing slide plate 24, they drive the sealing slide plate 24 and the positioning rod 26 to move downward. The pressure sensor 28 monitors the movement. When cleaning the filter screen 18, ensure that there is no liquid nitrogen in the inner cavity of the container 11.

[0035] Step 2: Turn on the motor 45, which drives the threaded rod 44 to rotate, causing the locking rod 46 to move the housing 11 upward, thus exposing the filter screen 18. This facilitates cleaning of the inner wall of the housing 11 and replacement of the filter screen 18, offering the advantages of easy cleaning and monitoring function.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A liquid ammonia cleaning device for urea, characterized in that: The assembly includes a cleaning component (1), an impurity monitoring component (2), a top limiting component (3), and a lifting component (4). The impurity monitoring component (2) is located at the bottom of the cleaning component (1). The top limiting components (3) are located on both sides of the top of the cleaning component (1). The lifting components (4) are located on both sides of the cleaning component (1). The cleaning component (1) includes a receiving box (11), a bottom plate (12), a first sealing ring (13), an annular groove (14), a second sealing ring (15), a discharge chute (16), a discharge pipe (17), and a filter screen cover (18). The impurity monitoring component (2) includes a workbench (21), a sealing door (22), a storage bin (23), a sealing slide plate (24), a first spring (25), a positioning rod (26), a positioning sleeve (27), and a pressure sensor (28). The top limiting component (3) includes a fixed seat (31), a first slide groove (32), a second spring (33), a T-shaped frame (34), and a first slider (35). The lifting component (4) includes a connecting rod (41), a second slide groove (42), a second slider (43), a threaded rod (44), a motor (45), and a locking rod (46).

2. The urea-cleaning liquid ammonia device according to claim 1, characterized in that: The receiving box (11) is set on the top of the base plate (12), the second sealing ring (15) is fixedly installed on the top of the base plate (12), the filter screen cover (18) is set in the inner cavity of the second sealing ring (15), the discharge groove (16) is opened on both sides inside the base plate (12), and the annular slot (14) is opened at the bottom of the receiving box (11).

3. The urea-using liquid ammonia cleaning device according to claim 1, characterized in that: The first sealing ring (13) is set in the inner cavity of the annular groove (14), the bottom of the annular groove (14) is fixedly connected to the top of the base plate (12), the discharge pipe (17) is set in the inner cavity of the filter screen cover (18) through the third sealing ring, and the surface of the discharge pipe (17) is fixedly connected to the inside of the receiving box (11).

4. The urea-cleaning device using liquid ammonia according to claim 1, characterized in that: The fixed bases (31) are all connected to the two sides of the top of the receiving box (11). The second spring (33) is fixedly installed in the inner cavity of the fixed base (31). The T-shaped frame (34) is fixedly installed at the bottom of the second spring (33). The bottom of the T-shaped frame (34) is in contact with the top of the filter screen cover (18). The bottom of the first sealing ring (13) is fixedly connected to the top of the base plate (12).

5. The urea-cleaning device using liquid ammonia according to claim 1, characterized in that: The first slide groove (32) is opened on both sides of the inner cavity of the fixed seat (31). The first slider (35) slides in the inner cavity of the first slide groove (32). The side of the first slider (35) that is relatively close to each other is fixedly connected to both sides of the T-shaped frame (34). The storage box (23) is fixedly installed at the bottom of the base plate (12). The sealing door (22) is movably connected to the right side of the storage box (23) through a hinge.

6. The urea-cleaning device using liquid ammonia according to claim 1, characterized in that: The sealing slide plate (24) is set in the inner cavity of the storage box (23). The first spring (25) is fixedly installed on both sides of the bottom of the sealing slide plate (24). The bottom of the first spring (25) is fixedly connected to the bottom of the inner cavity of the storage box (23). The positioning sleeve (27) is fixedly installed at the center of the bottom of the storage box (23).

7. The urea-cleaning liquid ammonia device according to claim 1, characterized in that: The pressure sensor (28) is fixedly installed at the bottom of the inner cavity of the positioning sleeve (27), the positioning rod (26) slides in the inner cavity of the positioning sleeve (27), the top of the positioning rod (26) is fixedly connected to the bottom of the sealing slide plate (24), and the workbench (21) is fixedly installed at the bottom of the storage box (23).

8. The urea-liquid ammonia cleaning device according to claim 1, characterized in that: The locking rods (46) are all fixedly installed on both sides of the receiving box (11). The second slide groove (42) is opened inside the locking rod (46). The second slider (43) slides in the inner cavity of the second slide groove (42). The threaded rod (44) rotates inside the second slider (43) by the thread.

9. The urea-cleaning device using liquid ammonia according to claim 1, characterized in that: The motor (45) is fixedly installed on the top of the lever (46). The output shaft of the motor (45) passes through the inner cavity of the second slide groove (42) and is fixedly connected to the top of the threaded rod (44). The connecting rod (41) is fixedly installed on the bottom of the second slider (43). The bottom of the connecting rod (41) is fixedly connected to the top of the base plate (12).

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