Novel urea solution filtering and purifying equipment

Abstract

The invention belongs to the field of urea solution processing, and particularly relates to novel urea solution filtering and purifying equipment which comprises a bottom frame, a vertical plate is fixedly connected to the side end of the bottom frame, a connecting plate is fixedly connected to the side end of the vertical plate, a stirring barrel is arranged on the upper side of the bottom frame, and a cover plate is arranged on the upper side of the bottom frame; the rotating mechanism is arranged on the upper side of the bottom frame and is used for overturning the stirring barrel; according to the device, the rotating mechanism can conveniently and accurately insert the scattering mechanism into the stirring barrel, the lifting mechanism drives the scattering mechanism to be re-inserted into the stirring barrel to work, the scattering mechanism scatters a urea solution accumulated in the stirring barrel, and the fumigation effect is improved; the fumigation mechanism is matched with the heating pipe, so that the fumigation effect of the urea solution in the stirring barrel is optimal.

Description

Technical Field

[0001] The invention relates to the technical field of urea solution processing, and in particular to a novel urea solution filtering and purification device. Background Art

[0002] In industrial production and related application fields, the quality of urea solution has a crucial impact on the subsequent production process and product performance. Traditional urea solution filtration and purification equipment often has some limitations.

[0003] On the one hand, when the urea solution is treated, there may be agglomerations or impurities agglomeration in the solution. Due to the lack of effective dispersing measures, these agglomerates and agglomerates are difficult to fully contact with the purification treatment medium, resulting in incomplete purification, affecting the purity and quality of the urea solution, and further having a negative impact on the production process using the urea solution. For example, in some chemical production involving urea solution as a reactant or solvent, impurities may cause side reactions or reduce reaction efficiency.

[0004] On the other hand, the existing equipment has a relatively single function during the stirring process. Relying solely on simple stirring methods cannot meet diverse purification needs. For example, conventional stirring cannot effectively remove some impurities adsorbed on the barrel wall or stubborn dirt deposited on the bottom of the barrel. Moreover, the stirring process cannot adapt well to urea solutions of different liquid levels, resulting in poor treatment effects of solutions near the barrel wall and bottom.

[0005] At the same time, during the purification process, the heating and fumigation methods for urea solution are not flexible and efficient enough. Traditional equipment either has no fumigation function or has a limited and uneven fumigation range, which cannot fully treat the urea solution, making it difficult to effectively remove microorganisms and volatile harmful substances in the solution. It cannot meet the needs of some industries that require high purity of urea solution. For example, if the urea solution used in the automobile exhaust treatment system has too many impurities and harmful substances, it will reduce the exhaust treatment efficiency and cause environmental pollution.

[0006] In addition, the equipment also needs to be improved in terms of operational convenience and rationality of structural design. For example, some equipment has difficulties in maintaining and cleaning the internal parts of the mixing barrel because its structure is complex and the parts are not easy to disassemble or adjust. At the same time, when processing different amounts of urea solution, the equipment has poor adaptability and cannot conveniently adjust the working state according to the amount of solution, which reduces the efficiency and service life of the equipment. Summary of the invention

[0007] The purpose of the present invention is to solve the problems existing in the prior art and to propose a new type of urea solution filtering and purification equipment.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] A novel urea solution filtering and purification device comprises a base frame, a vertical plate is fixedly connected to the side end of the base frame, a connecting plate is fixedly connected to the side end of the vertical plate, a stirring barrel is arranged on the upper side of the base frame, and a cover plate is arranged on the upper side of the base frame;

[0010] A rotating mechanism, which is arranged on the upper side of the base frame and is used to flip the mixing barrel;

[0011] A dispersing mechanism, which is arranged on the upper side of the base frame and is used to disperse the urea solution in the stirring barrel;

[0012] A lifting mechanism, which is arranged on the upper side of the base frame and is used to extend the breaking mechanism into the mixing barrel to work;

[0013] A fumigation mechanism is arranged on the upper side of the base frame and is used for steam fumigating the urea solution inside the stirring barrel.

[0014] As a further solution of the present invention, the rotating mechanism includes a fixed plate, a first motor and a connecting block, the fixed plate is fixedly connected to the side end of the vertical plate, the first motor is fixedly connected to the top of the fixed plate, and the output shaft of the first motor rotates through the side end of the vertical plate, the connecting block is fixedly connected to the surface of the mixing barrel, and the connecting block is fixedly connected to the side end of the output shaft of the first motor.

[0015] As a further scheme of the present invention, the breaking up mechanism includes a fixed block, a third motor, three stirring blades, two scrapers, a stirring frame and a bottom knife, the fixed block is fixedly connected to the top of the cover plate, the third motor is fixedly connected to the side end of the fixed block, and the output shaft of the third motor rotates through the side end of the cover plate and extends downward, the stirring frame is fixedly connected to the output shaft surface of the third motor, the three stirring blades are fixedly connected to the surface of the fourth motor, the two scrapers are fixedly connected to the surface of the stirring frame, and the bottom knife is fixedly connected to the bottom of the output shaft of the third motor.

[0016] As a further scheme of the present invention, the lifting mechanism includes a second motor, two sliding rods, a screw, a first bevel gear, a second bevel gear and a threaded sleeve, the second motor is fixedly connected to the upper end of the base frame, the two sliding rods are fixedly connected to the upper end of the base frame, and both slide through the side end of the cover plate, the screw is rotatably connected to the adjacent ends of the connecting plate and the base frame, the first bevel gear is fixedly connected to the side end of the output shaft of the second motor, the second bevel gear is fixedly sleeved on the surface of the screw, and the central axis of the second bevel gear coincides with the central axis of the screw, the second bevel gear is meshedly connected to the first bevel gear, and the threaded sleeve is fixedly connected to the side end of the cover plate and is threadedly connected to the surface of the screw.

[0017] As a further scheme of the present invention, the fumigation mechanism includes a steam engine, a connecting pipe, four air outlets, and an empty pipe. The steam engine is fixedly connected to the lower end of the mixing barrel, the connecting pipe is fixedly passed through the side end of the vertical plate, and is connected to the steam engine pipeline, the empty pipe is connected to the upper end of the steam engine, and the empty pipe is movably engaged with the bottom knife, the four air outlets are arranged at the upper end of the bottom knife, and the empty pipe is connected to the four air outlet pipes.

[0018] As a further solution of the present invention, a first sliding groove is bored at the side end of the vertical plate, the cover plate is slidably connected to the inner wall of the first sliding groove, and an empty groove is bored at the side end of the connecting plate.

[0019] As a further solution of the present invention, a sealing gasket is fixedly connected to the lower end of the cover plate, and the inner diameter of the sealing gasket is larger than the outer diameter of the mixing barrel.

[0020] As a further solution of the present invention, the bottom knife is in close contact with the inner wall of the mixing barrel, and a heating tube is provided inside the mixing barrel.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] Excellent performance in breaking up. The equipment is specially equipped with a breaking up mechanism, which effectively solves the problem of agglomeration or impurity agglomeration in urea solution. Due to the lack of such effective measures, the traditional equipment cannot fully contact these agglomerates with the purification medium. The breaking up mechanism of this equipment can drive the stirring frame, stirring blades, scrapers and bottom knives through the third motor to fully stir the solution, so that the agglomerates and agglomerates are broken up, ensuring that the urea solution can be purified more thoroughly, greatly improving the purity and quality of the solution. This is of great significance to fields such as chemical production that rely on urea solution. It can avoid side reactions caused by impurities and improve reaction efficiency. Secondly, the stirring function is diverse and efficient. Unlike traditional equipment with a single stirring method, the lifting mechanism of this equipment can adjust the height of the breaking up mechanism, which can adapt to urea solutions of different liquid levels and ensure that the solution in the entire barrel can be fully stirred. At the same time, the bottom knife is close to the barrel wall, and the scraper can also clean the barrel wall. Impurities adsorbed on the barrel wall and stubborn dirt deposited on the bottom of the barrel can be effectively removed, which comprehensively improves the stirring effect and ensures that the solution can be properly handled at all positions. Moreover, the heating and fumigation functions are flexible and efficient. The setting of the fumigation mechanism makes up for the shortcomings of traditional equipment. The steam generated by the steam engine can fumigate the urea solution comprehensively and evenly through the connecting pipe, empty pipe and air outlet. This flexible and efficient fumigation method can effectively remove microorganisms, volatile harmful substances, etc. in the solution, meet the needs of industries such as automobile exhaust treatment systems that have high requirements for the purity of urea solution, reduce the impact of impurities and harmful substances on the exhaust treatment efficiency, and reduce pollution to the environment. In addition, it also has outstanding performance in terms of ease of operation and reasonable structural design. The structural design of the equipment takes into account the convenience of maintenance and cleaning. The cover plate can be easily moved through components such as sliding rods and screws, making it easy to maintain and clean the internal components of the mixing barrel. Moreover, the equipment can adjust its working state according to the amount of urea solution, and has good adaptability to different processing volumes, thereby improving the equipment's utilization efficiency and service life and reducing its use cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a front view of a novel urea solution filtering and purification device proposed by the present invention;

[0024] Figure 2 A side view of a novel urea solution filtering and purification device proposed by the present invention;

[0025] Figure 3 A cross-sectional view of a connecting pipe of a novel urea solution filtering and purification device proposed by the present invention;

[0026] Figure 4 A schematic diagram of a breaking mechanism of a novel urea solution filtering and purification device proposed by the present invention;

[0027] Figure 5A bottom view of a breaking mechanism of a novel urea solution filtering and purification device proposed by the present invention;

[0028] Figure 6 This is a schematic diagram of a heating pipe of a novel urea solution filtering and purification device proposed by the present invention.

[0029] In the figure: 1, base frame; 2, vertical plate; 3, connecting plate; 4, fixed plate; 5, first motor; 6, connecting block; 7, stirring barrel; 8, second motor; 9, sliding rod; 10, screw; 11, first bevel gear; 12, second bevel gear; 13, threaded sleeve; 14, cover plate; 15, first slide groove; 16, fixed block; 17, third motor; 18, stirring frame; 19, bottom knife; 20, steam engine; 21, connecting pipe; 22, air outlet; 23, empty pipe; 24, empty groove; 25, stirring blade; 26, scraper; 27, heating tube; 28, sealing gasket. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely 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, rather than all the embodiments.

[0031] Embodiment 1

[0032] Reference Figure 1-Figure 6 A novel urea solution filtering and purification device comprises a base frame 1, a vertical plate 2 is fixedly connected to the side end of the base frame 1, a connecting plate 3 is fixedly connected to the side end of the vertical plate 2, a stirring barrel 7 is arranged on the upper side of the base frame 1, and a cover plate 14 is arranged on the upper side of the base frame 1; a rotating mechanism, the rotating mechanism is arranged on the upper side of the base frame 1 for turning over the stirring barrel 7; a dispersing mechanism, the dispersing mechanism is arranged on the upper side of the base frame 1 for dispersing the urea solution inside the stirring barrel 7; a lifting mechanism, the lifting mechanism is arranged on the upper side of the base frame 1 for extending the dispersing mechanism into the stirring barrel 7 for working; a fumigation mechanism, the fumigation mechanism is arranged on the upper side of the base frame 1 for steam fumigating the urea solution inside the stirring barrel 7, the rotating mechanism can facilitate the dispersing mechanism to be accurately inserted into the stirring barrel 7, the lifting mechanism drives the dispersing mechanism to be reinserted into the stirring barrel 7 for working, the dispersing mechanism disperses the urea solution accumulated inside the stirring barrel 7 to improve the fumigation effect, and the fumigation mechanism cooperates with the heating pipe 27 to achieve the best fumigation effect of the urea solution inside the stirring barrel 7.

[0033] Embodiment 2

[0034] Reference Figure 1-Figure 6The present invention provides a new technical solution: a novel urea solution filtering and purification device, comprising a base frame 1, a vertical plate 2 is fixedly connected to the side end of the base frame 1, a connecting plate 3 is fixedly connected to the side end of the vertical plate 2, a stirring barrel 7 is arranged on the upper side of the base frame 1, and a cover plate 14 is arranged on the upper side of the base frame 1; a rotating mechanism, the rotating mechanism is arranged on the upper side of the base frame 1 for turning over the stirring barrel 7; a dispersing mechanism, the dispersing mechanism is arranged on the upper side of the base frame 1 for dispersing the urea solution inside the stirring barrel 7; a lifting mechanism, the lifting mechanism is arranged on the upper side of the base frame 1 for extending the dispersing mechanism into the interior of the stirring barrel 7 for working; a fumigation mechanism, the fumigation mechanism is arranged on the upper side of the base frame 1 for steam fumigating the urea solution inside the stirring barrel 7, and the rotating mechanism can facilitate the dispersing mechanism to accurately Inserted into the mixing barrel 7, the lifting mechanism drives the dispersing mechanism to reinsert into the mixing barrel 7 to work, the dispersing mechanism disperses the urea solution accumulated in the mixing barrel 7 to improve the fumigation effect, and the fumigation mechanism cooperates with the heating tube 27 to achieve the best fumigation effect of the urea solution in the mixing barrel 7. The rotating mechanism includes a fixed plate 4, a first motor 5 and a connecting block 6. The fixed plate 4 is fixedly connected to the side end of the vertical plate 2, the first motor 5 is fixedly connected to the top of the fixed plate 4, and the output shaft of the first motor 5 rotates and runs through the side end of the vertical plate 2. The connecting block 6 is fixedly connected to the surface of the mixing barrel 7, and the connecting block 6 is fixedly connected to the side end of the output shaft of the first motor 5. After the first motor 5 is started, the output shaft of the first motor 5 drives the connecting block 6 to rotate. The block 6 is fixedly connected to the surface of the mixing barrel 7, so the connecting block 6 can immediately drive the mixing barrel 7 to rotate, which is convenient for loading and unloading the mixing barrel 7. After loading, the mixing barrel 7 can be repositioned to keep it parallel to the vertical plate 2, which can facilitate the accurate insertion of the dispersing mechanism into the mixing barrel 7. The dispersing mechanism includes a fixed block 16, a third motor 17, three stirring blades 25, two scrapers 26, a stirring frame 18 and a bottom knife 19. The fixed block 16 is fixedly connected to the top of the cover plate 14, the third motor 17 is fixedly connected to the side end of the fixed block 16, and the output shaft of the third motor 17 rotates and extends downward through the side end of the cover plate 14. The stirring frame 18 is fixedly connected to the output shaft surface of the third motor 17, and the three stirring blades 25 are all fixedly connected to the surface of the fourth motor 17. , the two scrapers 26 are fixedly connected to the surface of the stirring frame 18, the bottom knife 19 is fixedly connected to the bottom of the output shaft of the third motor 17, when the breaking mechanism extends into the stirring barrel 7 through the lifting mechanism, the third motor 17 is started, and the output shaft of the third motor 17 drives the stirring frame 18 and the bottom knife 19 to rotate, and the urea solution accumulated in the stirring barrel 7 is broken up to improve the fumigation effect, the lifting mechanism includes a second motor 8, two sliding rods 9, a screw 10, a first bevel gear 11, a second bevel gear 12 and a threaded sleeve 13, the second motor 8 is fixedly connected to the upper end of the base frame 1, the two sliding rods 9 are fixedly connected to the upper end of the base frame 1, and both slide through the side ends of the cover plate 14, the screw 10 is rotatably connected to the adjacent ends of the connecting plate 3 and the base frame 1,The first bevel gear 11 is fixedly connected to the side end of the output shaft of the second motor 8, the second bevel gear 12 is fixedly sleeved on the surface of the screw 10, and the central axis of the second bevel gear 12 coincides with the central axis of the screw 10, the second bevel gear 12 is meshed with the first bevel gear 11, the threaded sleeve 13 is fixedly connected to the side end of the cover plate 14, and is threadedly connected to the surface of the screw 10, and the central axis of the second bevel gear 12 coincides with the central axis of the screw 10, the second bevel gear 12 is meshed with the first bevel gear 11, the threaded sleeve 13 is fixedly connected to the side end of the cover plate 14, and is threadedly connected to the surface of the screw 10, and the central axis of the second bevel gear 12 coincides with the central axis of the screw 10, the second bevel gear 12 is meshed with the first bevel gear 11, the threaded sleeve 13 is fixedly connected to the side end of the cover plate 14, and is threadedly connected On the surface of the screw 10, when it is necessary to load the material, the dispersing mechanism needs to be disengaged from the inside of the mixing barrel 7. At this time, the second motor 8 is started, and the output shaft of the second motor 8 drives the rotation of the first bevel gear 11. The first bevel gear 11 is meshed with the second bevel gear 12, and the second bevel gear 12 drives the rotation of the screw 10. The threaded sleeve 13 is threadedly connected with the screw 10, and the cover plate 14 is restricted by the two sliding rods 9, so the cover plate 14 can move up and down, thereby lifting the dispersing mechanism and disengaging the dispersing mechanism. After the loading is completed, the second motor 8 is started again to reinsert the dispersing mechanism into the mixing barrel 7. The fumigation mechanism includes a steam engine 20, a connecting pipe 21, four air outlets 22, and an empty pipe 23. The steam engine 20 is fixedly connected to the lower end of the mixing barrel 7. The connecting pipe 21 is fixedly passed through the side end of the vertical plate 2 and is connected to the steam engine 20 pipeline. The empty pipe 23 pipeline is connected to the upper end of the steam engine 20, and the empty pipe 23 is movably connected to the bottom knife 19. The four air outlets 22 are arranged at the upper end of the bottom knife 19, and the empty pipe 23 is connected to the four air outlets 22 pipelines. The steam engine 20 atomizes the water flow drawn from the connecting pipe 21. When the bottom knife 19 touches the bottom through the lifting mechanism and is connected to the empty pipe 23, the bottom knife 19 is connected to the empty pipe 23. Then, the urea solution is discharged into the mixing barrel 7 through the empty pipe 23 and the four air outlets 22 to be atomized and fumigated, and then the heating tube 27 is used to achieve the best fumigation effect of the urea solution inside the mixing barrel 7. The side end of the vertical plate 2 is chiseled with a first chute 15, and the cover plate 14 is slidably connected to the inner wall of the first chute 15. The side end of the connecting plate 3 is chiseled with an empty groove 24. The lower end of the cover plate 14 is fixedly connected with a sealing gasket 28. The inner diameter of the sealing gasket 28 is larger than the outer diameter of the mixing barrel 7. This setting ensures that the mixing barrel 7 can be sealed. The bottom knife 19 is close to the inner wall of the mixing barrel 7, and a heating tube 27 is provided inside the mixing barrel 7.

[0035] Working principle: when loading is required, the dispersing mechanism needs to be disengaged from the inside of the mixing barrel 7. At this time, the second motor 8 is started, and the output shaft of the second motor 8 drives the rotation of the first bevel gear 11. The first bevel gear 11 is meshed with the second bevel gear 12. The second bevel gear 12 drives the rotation of the screw 10. The threaded sleeve 13 is threadedly connected to the screw 10, and the cover plate 14 is restricted by the two sliding rods 9, so the cover plate 14 can move up and down, thereby lifting the dispersing mechanism and disengaging the dispersing mechanism. After the first motor 5 is started, the output shaft of the first motor 5 drives the connecting block 6 to rotate. The connecting block 6 is fixedly connected to the surface of the mixing barrel 7, so the connecting block 6 can immediately drive the rotation of the mixing barrel 7. , it is convenient for the mixing barrel 7 to load and unload materials. After loading, the second motor 8 is started again, and the breaking mechanism is reinserted into the mixing barrel 7 to work. After the lifting mechanism is extended into the mixing barrel 7, the third motor 17 is started. The output shaft of the third motor 17 drives the stirring frame 18 and the bottom knife 19 to rotate, and the urea solution accumulated in the mixing barrel 7 is broken up. The steam engine 20 atomizes the water flow led out from the connecting pipe 21. When the bottom knife 19 touches the bottom through the lifting mechanism, it is movably connected with the empty pipe 23, and then discharged into the mixing barrel 7 through the empty pipe 23 and the four air outlets 22 to perform atomization fumigation of the urea solution. In combination with the heating pipe 27, the fumigation effect of the urea solution in the mixing barrel 7 is optimized.

[0036] However, as is well known to those skilled in the art, the working principles and wiring methods of the first motor 5, the second motor 8, the third motor 17, the steam engine 20 and the heating tube 27 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art may make any optional selections according to their needs or convenience.

[0037] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A novel urea solution filtering and purification device, comprising a base frame (1), characterized in that: The side end of the base frame (1) is fixedly connected to a vertical plate (2), the side end of the vertical plate (2) is fixedly connected to a connecting plate (3), a stirring barrel (7) is arranged on the upper side of the base frame (1), and a cover plate (14) is arranged on the upper side of the base frame (1); A rotating mechanism, the rotating mechanism being arranged on the upper side of the base frame (1) and being used for turning over the mixing barrel (7); A dispersing mechanism, the dispersing mechanism being arranged on the upper side of the base frame (1) and being used for dispersing the urea solution inside the stirring barrel (7); A lifting mechanism, the lifting mechanism being arranged on the upper side of the base frame (1) and being used for extending the breaking mechanism into the interior of the mixing barrel (7) to operate; A fumigation mechanism is arranged on the upper side of the base frame (1) and is used for steam fumigating the urea solution inside the stirring barrel (7).

2. A novel urea solution filtering and purification equipment according to claim 1, characterized in that: The rotating mechanism comprises a fixed plate (4), a first motor (5) and a connecting block (6); the fixed plate (4) is fixedly connected to the side end of the vertical plate (2); the first motor (5) is fixedly connected to the top of the fixed plate (4); and the output shaft of the first motor (5) rotates and passes through the side end of the vertical plate (2); the connecting block (6) is fixedly connected to the surface of the mixing barrel (7); and the connecting block (6) is fixedly connected to the side end of the output shaft of the first motor (5).

3. A novel urea solution filtering and purification equipment according to claim 2, characterized in that: The dispersing mechanism comprises a fixed block (16), a third motor (17), three stirring blades (25), two scrapers (26), a stirring frame (18) and a bottom knife (19); the fixed block (16) is fixedly connected to the top of the cover plate (14); the third motor (17) is fixedly connected to the side end of the fixed block (16); the output shaft of the third motor (17) rotates through the side end of the cover plate (14) and extends downward; the stirring frame (18) is fixedly connected to the surface of the output shaft of the third motor (17); the three stirring blades (25) are fixedly connected to the surface of the fourth motor (17); the two scrapers (26) are fixedly connected to the surface of the stirring frame (18); and the bottom knife (19) is fixedly connected to the bottom of the output shaft of the third motor (17).

4. A novel urea solution filtering and purification equipment according to claim 3, characterized in that: The lifting mechanism comprises a second motor (8), two sliding rods (9), a screw (10), a first bevel gear (11), a second bevel gear (12) and a threaded sleeve (13); the second motor (8) is fixedly connected to the upper end of the base frame (1); the two sliding rods (9) are fixedly connected to the upper end of the base frame (1) and slide through the side ends of the cover plate (14); the screw (10) is rotatably connected to the adjacent ends of the connecting plate (3) and the base frame (1). The first bevel gear (11) is fixedly connected to the side end of the output shaft of the second motor (8), the second bevel gear (12) is fixedly sleeved on the surface of the screw (10), and the central axis of the second bevel gear (12) coincides with the central axis of the screw (10), the second bevel gear (12) is meshingly connected with the first bevel gear (11), and the threaded sleeve (13) is fixedly connected to the side end of the cover plate (14) and is threadedly connected to the surface of the screw (10).

5. A novel urea solution filtering and purification equipment according to claim 4, characterized in that: The fumigation mechanism comprises a steam engine (20), a connecting pipe (21), four air outlet holes (22), and an empty pipe (23); the steam engine (20) is fixedly connected to the lower end of the mixing barrel (7); the connecting pipe (21) is fixedly passed through the side end of the vertical plate (2) and is connected to the pipeline of the steam engine (20); the empty pipe (23) is connected to the upper end of the steam engine (20), and the empty pipe (23) is movably connected to the bottom knife (19); the four air outlet holes (22) are arranged at the upper end of the bottom knife (19), and the empty pipe (23) is connected to the pipelines of the four air outlet holes (22).

6. A novel urea solution filtering and purification device according to claim 5, characterized in that: A first sliding groove (15) is bored at the side end of the vertical plate (2), the cover plate (14) is slidably connected to the inner wall of the first sliding groove (15), and an empty groove (24) is bored at the side end of the connecting plate (3).

7. A novel urea solution filtering and purification device according to claim 6, characterized in that: A sealing gasket (28) is fixedly connected to the lower end of the cover plate (14), and the inner diameter of the sealing gasket (28) is larger than the outer diameter of the mixing barrel (7).

8. The novel urea solution filtering and purification equipment according to claim 7 is characterized in that: The bottom knife (19) is in close contact with the inner wall of the mixing barrel (7), and a heating pipe (27) is provided inside the mixing barrel (7).

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