Washing oil trapping tower for asphalt tail gas treatment

Abstract

The utility model discloses a wash oil trapping tower for asphalt tail gas treatment, and particularly relates to the technical field of asphalt tail gas treatment, the wash oil trapping tower comprises a tower body used for trapping asphalt tail gas for wash oil treatment, the top of one end of the tower body is fixedly communicated with a feed pipe, the top of the feed pipe is provided with a Venturi ejector, and the top of the Venturi ejector is communicated with the tower body. And a functional part for enhancing the oil absorption effect is arranged between the Venturi ejector and the feeding pipe. The servo motor drives the driving gear to rotate, the driving gear drives the driven gear to drive the movable pipe to rotate, the movable pipe drives the filter cylinder connected with the supporting ring to rotate through the fixing column and the fixing ring, centrifugal force is generated through rotation of the filter cylinder, and therefore washing oil can be scattered and thrown out. Meanwhile, the asphalt tail gas can be guided to be discharged from tiny gaps in the filter cylinder, the effect of fully scattering and mixing the washing oil and the asphalt tail gas is achieved, and the washing oil can fully treat the asphalt tail gas.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt tail gas treatment, more specifically to an oil washing capture tower for asphalt tail gas treatment. Background Art

[0002] During the development of cracking C9 separation technology, it was discovered that after dicyclopentadiene is enriched, it tends to decompose into cyclopentadiene and polycondense into higher molecular weight polymers within a certain temperature range. The higher the temperature, the faster the reaction rate. However, the decomposition and polycondensation reactions reduce the yield of dicyclopentadiene. Therefore, lowering the distillation separation temperature and shortening the distillation residence time are key to improving dicyclopentadiene yield. Vacuum distillation is used to lower the operating temperature while specially designed tower equipment minimizes the material's residence time in the hot zone. In the dicyclo capture unit used in cracking C9 separation, the diene is captured by cryogenic freezing and then heated to 120°C for dimerization into dicyclopentadiene, which serves as the feedstock for the thermal polymerization reaction, thereby increasing the yield of dicyclopentadiene.

[0003] As shown in the prior art publication No. CN105126583A, although this prior art directly captures flue gas through the suction of a venturi trap, and hydrocarbon components in the asphalt flue gas are effectively absorbed by the wash oil, the contact efficiency between the wash oil and the flue gas is low when the wash oil is recycled and brought into contact with the flue gas. As a result, the wash oil cannot fully treat the exhaust gas, thus affecting the practicality of this technical solution. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides an oil washing capture tower for asphalt tail gas treatment, which is driven by a servo motor to rotate the main gear, and the main gear drives the slave gear to rotate the movable tube, and the movable tube then drives the filter cartridge connected to the support ring to rotate through the fixed column and the fixed ring. The rotation of the filter cartridge generates centrifugal force, which can break up the washing oil and throw it out, and at the same time, it can also guide the asphalt tail gas to be discharged from the tiny gaps on the filter cartridge, so as to achieve the effect of fully breaking up the washing oil and the asphalt tail gas and mixing them, so that the washing oil can fully treat the asphalt tail gas, so as to solve the problems arising in the above-mentioned background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an oil-washing capture tower for asphalt tail gas treatment, comprising a tower body for capturing asphalt tail gas for oil-washing treatment, a feed pipe fixedly connected to the top of one end of the tower body, a venturi ejector provided on the top of the feed pipe, and a functional component for enhancing the oil absorption effect provided between the venturi ejector and the feed pipe;

[0006] The functional component includes a movable tube provided between the venturi ejector and the feed pipe, with connecting tubes movably connected via bearings installed at both the top and bottom ends of the movable tube. The connecting tube at the top end of the movable tube is fixed to the bottom end of the venturi ejector via a flange, and the connecting tube at the bottom end of the movable tube is fixed to the top end of the feed pipe via a flange.

[0007] A support ring is provided inside the movable tube, a fixed ring is installed outside the support ring, and a plurality of fixed columns for connecting the movable tube are installed outside the fixed ring, and filter cartridges are installed at the top and bottom ends of the support ring. A hopper is provided on the top of the filter cartridge located at the top of the support ring, and the hopper is installed inside the connecting tube located at the top of the movable tube;

[0008] The movable tube is externally sleeved with a slave gear, and one end of the slave gear is meshed with a main gear.

[0009] In a preferred embodiment, a protective shell is provided on the outside of the movable tube, and the slave gear and the master gear are both arranged inside the protective shell, and the top and bottom ends of the master gear are fixed to the inner wall of the protective shell through a rotating shaft.

[0010] In a preferred embodiment, a servo motor is installed on one side of the top of the protective shell close to the main gear, and the output shaft of the servo motor passes through the protective shell and is fixed to the rotating shaft on the main gear.

[0011] In a preferred embodiment, a mounting ring is provided on the outside of the connecting tube, and two mounting plates are installed on the side of the mounting ring close to the movable tube. The two mounting plates are symmetrically distributed about the central axis of the mounting ring, and the end of the mounting plate away from the mounting ring is fixed to the protective shell.

[0012] In a preferred embodiment, a circulation pipe is fixedly connected to the bottom of one end of the tower body close to the feed pipe, and an oil pump is installed on the outside of the circulation pipe. The end of the circulation pipe away from the tower body is fixedly connected to the top of the venturi injector, and an air intake pipe for conveying asphalt exhaust is provided on the rear side of the venturi injector.

[0013] In a preferred embodiment, the top of the tower body away from the feed pipe is fixedly connected to an air outlet pipe, and a discharge pipe is provided at the bottom of the air outlet pipe, and the discharge pipe is fixedly connected to the bottom of the tower body. A liquid replenishing pipe is provided between the feed pipe and the air outlet pipe, and the liquid replenishing pipe is fixedly connected to the top of the tower body.

[0014] The technical effects and advantages of this utility model are:

[0015] The main gear is driven by the servo motor to rotate, and the main gear drives the slave gear to drive the movable tube to rotate. The movable tube then drives the filter cartridge connected to the support ring to rotate through the fixed column and the fixed ring. The rotation of the filter cartridge generates centrifugal force, which can break up the wash oil and throw it out. At the same time, it can also guide the asphalt exhaust gas to be discharged from the tiny gaps on the filter cartridge, so that the wash oil and asphalt exhaust gas are fully broken up and mixed, so that the wash oil can fully treat the asphalt exhaust gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a rear view of the Venturi ejector of the present invention;

[0018] Figure 3 This is the front view of the movable tube of the utility model;

[0019] Figure 4 This is a cross-sectional view of the movable tube of the utility model;

[0020] Figure 5 For the utility model Figure 4 Enlarged view of part A.

[0021] The figures are marked as follows: 1. tower body; 2. feed pipe; 3. Venturi ejector; 4. movable pipe; 5. connecting pipe; 6. support ring; 7. fixing ring; 8. filter cartridge; 9. hopper; 10. slave gear; 11. main gear; 12. protective shell; 13. servo motor; 14. mounting ring; 15. mounting plate; 16. circulation pipe; 17. oil pump; 18. air inlet pipe; 19. air outlet pipe; 20. discharge pipe; 21. liquid filling pipe; 22. fixing column. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Refer to the instruction manual Figure 1-5 The utility model provides an oil washing capture tower for asphalt tail gas treatment, comprising a tower body 1 for capturing asphalt tail gas for oil washing treatment, a feed pipe 2 fixedly connected to the top of one end of the tower body 1, a venturi ejector 3 is provided on the top of the feed pipe 2, and a functional part for enhancing the oil absorption effect is provided between the venturi ejector 3 and the feed pipe 2;

[0024] like Figure 2-5As shown, the functional parts include a movable tube 4 arranged between the venturi ejector 3 and the feed pipe 2, and the top and bottom ends of the movable tube 4 are both equipped with connecting tubes 5 movably connected by bearings, the connecting tube 5 located at the top of the movable tube 4 is fixed to the bottom end of the venturi ejector 3 through a flange, and the connecting tube 5 located at the bottom end of the movable tube 4 is fixed to the top of the feed pipe 2 through a flange; a support ring 6 is provided inside the movable tube 4, a fixing ring 7 is installed outside the support ring 6, and a plurality of fixing columns 22 for connecting the movable tube 4 are installed outside the fixing ring 7, a filter cartridge 8 is installed at the top and bottom ends of the support ring 6, a hopper 9 is provided on the top of the filter cartridge 8 located at the top of the support ring 6, and the hopper 9 is installed inside the connecting tube 5 located at the top of the movable tube 4; a slave gear 10 is provided on the outside of the movable tube 4, and a main gear 11 is engaged with one end of the slave gear 10.

[0025] During use, the worker uses the Venturi ejector 3 to transport the asphalt tail gas into the movable tube 4. At the same time, the oil pump 17 transports the wash oil in the tower body 1 through the circulation pipe 16 to the inside of the Venturi ejector 3, and then transports it to the inside of the movable tube 4 through the Venturi ejector 3. In this way, the wash oil and the asphalt tail gas can be pre-mixed and processed, thereby improving the subsequent treatment efficiency of the asphalt tail gas.

[0026] At the same time, the servo motor 13 is started to drive the main gear 11 to rotate. The main gear 11 drives the movable tube 4 to rotate with the help of the meshed slave gear 10. The movable tube 4 then drives the filter cartridge 8 connected to the support ring 6 to rotate through the fixed column 22 and the fixed ring 7. The rotation of the filter cartridge 8 can generate centrifugal force, which can break up the washing oil and throw it out. At the same time, it can also guide the asphalt exhaust gas to be discharged from the tiny gaps on the filter cartridge 8, so as to achieve the effect of fully breaking up the washing oil and the asphalt exhaust gas and mixing them, so that the washing oil can fully treat the asphalt exhaust gas, and the smoke generated by asphalt production can be effectively captured, which can remove more than 90% of the pollutants in the asphalt smoke, and the removal effect is obvious.

[0027] In order to avoid collision or foreign matter adhesion to damage the main gear 11 and the slave gear 10, the main gear 11 and the slave gear 10 need to be protected, such as Figure 2-5As shown, a protective shell 12 is provided on the outside of the movable tube 4, and the slave gear 10 and the main gear 11 are both arranged inside the protective shell 12, and the top and bottom ends of the main gear 11 are fixed to the inner wall of the protective shell 12 by a rotating shaft. The protective shell 12 provides all-round shielding and protection for the main gear 11 and the slave gear 10, so as to avoid collision and impact damage to the main gear 11 and the slave gear 10, and also avoid impurities adhering to and corroding and damaging the main gear 11 and the slave gear 10, thereby ensuring the performance of the main gear 11 and the slave gear 10. A servo motor 13 is installed on the side of the top of the protective shell 12 close to the main gear 11, and the output shaft of the servo motor 13 passes through the protective shell 12 and is fixed to the rotating shaft on the main gear 11, so that the servo motor 13 can drive the main gear 11 to drive the slave gear 10 to rotate, and the slave gear 10 simultaneously drives the movable tube 4 to rotate, so that it is convenient for the washing oil to fully treat the asphalt tail gas.

[0028] In order to ensure the stability of the protective shell 12, it is necessary to support and limit the protective shell 12, such as Figure 2-4 As shown, the connecting tube 5 is provided with a mounting ring 14 on the outside, and two mounting plates 15 are installed on the side of the mounting ring 14 close to the movable tube 4. The two mounting plates 15 are symmetrically distributed about the central axis of the mounting ring 14. The end of the mounting plate 15 away from the mounting ring 14 is fixed to the protective shell 12. Due to the fixed connection between the mounting ring 14 and the connecting tube 5, the two mounting plates 15 on the mounting ring 14 can support and fix the protective shell 12, thereby ensuring the stability of the protective shell 12.

[0029] In order to improve the utilization efficiency of washing oil, Figure 1 As shown, the bottom of one end of the tower body 1 close to the feed pipe 2 is fixedly connected with a circulation pipe 16, and an oil pump 17 is installed on the outside of the circulation pipe 16. The end of the circulation pipe 16 away from the tower body 1 is fixedly connected to the top of the venturi injector 3. The rear side of the venturi injector 3 is provided with an intake pipe 18 for conveying asphalt tail gas. The oil pump 17 conveys the washing oil in the tower body 1 to the inside of the venturi injector 3 through the circulation pipe 16, and then conveys it to the inside of the movable pipe 4 through the venturi injector 3. At the same time, the venturi injector 3 conveys the asphalt tail gas to the inside of the movable pipe 4 through the intake pipe 18. This allows the washing oil to pre-treat the asphalt tail gas. In addition, the top of the tower body 1 away from the feed pipe 2 is fixedly connected to an air outlet pipe 19, and a discharge pipe 20 is provided at the bottom of the air outlet pipe 19. The discharge pipe 20 is fixedly connected to the bottom of the tower body 1. A liquid replenishing pipe 21 is provided between the feed pipe 2 and the air outlet pipe 19. The liquid replenishing pipe 21 is fixedly connected to the top of the tower body 1, so that the treated tail gas can be discharged through the air outlet pipe 19, and the washing oil can also be discharged through the discharge pipe 20. The provision of the liquid replenishing pipe 21 makes it convenient for the staff to transport the washing oil to the inside of the tower body 1 for use.

[0030] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A washing oil capture tower for asphalt tail gas treatment, comprising a tower body (1) for capturing asphalt tail gas for washing oil treatment, characterized in that: A feed pipe (2) is fixedly connected to the top of one end of the tower body (1), a venturi ejector (3) is provided on the top of the feed pipe (2), and a functional component for enhancing the oil absorption effect is provided between the venturi ejector (3) and the feed pipe (2); The functional part includes a movable tube (4) provided between the venturi ejector (3) and the feed pipe (2), the top and bottom ends of the movable tube (4) are both provided with connecting tubes (5) movably connected via bearings, the connecting tube (5) located at the top end of the movable tube (4) is fixed to the bottom end of the venturi ejector (3) via a flange, and the connecting tube (5) located at the bottom end of the movable tube (4) is fixed to the top end of the feed pipe (2) via a flange; A support ring (6) is provided inside the movable tube (4), a fixed ring (7) is installed outside the support ring (6), and a plurality of fixed columns (22) for connecting to the movable tube (4) are installed outside the fixed ring (7), a filter cartridge (8) is installed at the top and bottom of the support ring (6), a hopper (9) is provided on the top of the filter cartridge (8) located at the top of the support ring (6), and the hopper (9) is installed inside the connecting tube (5) located at the top of the movable tube (4); The movable tube (4) is externally sleeved with a slave gear (10), and one end of the slave gear (10) is meshed with a master gear (11).

2. The asphalt tail gas treatment washing oil capture tower according to claim 1, characterized in that: The movable tube (4) is externally sleeved with a protective shell (12), and the slave gear (10) and the master gear (11) are both located inside the protective shell (12), and the top and bottom ends of the master gear (11) are fixed to the inner wall of the protective shell (12) via a rotating shaft.

3. The oil washing capture tower for asphalt tail gas treatment according to claim 2, characterized in that: A servo motor (13) is installed on one side of the top of the protective shell (12) close to the main gear (11), and an output shaft of the servo motor (13) passes through the protective shell (12) and is fixed to the rotating shaft on the main gear (11).

4. The oil washing capture tower for asphalt tail gas treatment according to claim 2, characterized in that: The connecting tube (5) is provided with a mounting ring (14) on the outside, and two mounting plates (15) are installed on a side of the mounting ring (14) close to the movable tube (4). The two mounting plates (15) are symmetrically distributed about the central axis of the mounting ring (14), and one end of the mounting plate (15) away from the mounting ring (14) is fixed to the protective shell (12).

5. The oil washing capture tower for asphalt tail gas treatment according to claim 1, characterized in that: The bottom of one end of the tower body (1) close to the feed pipe (2) is fixedly connected to a circulation pipe (16), and an oil pump (17) is installed outside the circulation pipe (16). The end of the circulation pipe (16) away from the tower body (1) is fixedly connected to the top of the Venturi ejector (3), and the rear side of the Venturi ejector (3) is provided with an air intake pipe (18) for conveying asphalt tail gas.

6. The oil washing capture tower for asphalt tail gas treatment according to claim 1, characterized in that: An air outlet pipe (19) is fixedly connected to the top of one end of the tower body (1) away from the feed pipe (2), and a discharge pipe (20) is provided at the bottom of the air outlet pipe (19), and the discharge pipe (20) is fixedly connected to the bottom of the tower body (1). A liquid replenishing pipe (21) is provided between the feed pipe (2) and the air outlet pipe (19), and the liquid replenishing pipe (21) is fixedly connected to the top of the tower body (1).

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