Flash tower for producing modified pitch

Abstract

The utility model relates to the technical field of flash towers, in particular to a flash tower for producing modified pitch. According to the technical scheme, the device comprises a tower body, a feeding pipe is fixedly connected to the position, close to the upper surface, of one side of the outer surface of the tower body, a hollow pipe is rotationally installed on the upper surface of the tower body, the two ends of the hollow pipe are located inside and outside the tower body respectively, and inclined spiral blades are welded to the outer surface of the hollow pipe and located inside the tower body; horizontal spiral blades are welded to the outer surfaces of the inclined spiral blades, a plurality of air outlet holes are formed in the outer surface of the hollow pipe in the spiral direction of the inclined spiral blades at equal intervals, a transmission box is fixedly installed on the upper surface of the tower body, and the hollow pipe penetrates through the transmission box. According to the utility model, under the condition that the volume of the flash tower body is not increased, the residence time and degassing area of an asphalt gas-liquid mixture in the tower body are prolonged, the occupied space and cost of the tower body are reduced, and meanwhile, asphalt adhered to the inner wall of the tower body can be conveniently removed by rotating the blade device.

Description

Technical Field

[0001] The utility model relates to the technical field of flash towers, in particular to a flash tower for producing modified asphalt. Background Art

[0002] A flash tower is a chemical equipment used to achieve rough gas-liquid phase separation of materials during the chemical production process, and a flash tower is used in asphalt modification treatment.

[0003] At present, in order to increase the residence time of gas and liquid in the tower and the degassing area to improve the degassing effect, the diameter or height of the tower body is usually increased during the use of the flash tower used for asphalt modification, resulting in an increase in the equipment footprint and cost. In addition, the asphalt adhered to the inner wall of the tower body is not easy to remove. Therefore, we propose a flash tower for modified asphalt production. Utility Model Content

[0004] The utility model aims to provide a flash tower for modified asphalt production, which has the advantages of extending the residence time and degassing area of ​​the asphalt gas-liquid mixture in the tower body without increasing the volume of the flash tower body, reducing the space occupied by the tower body and the cost, and also facilitating the removal of asphalt adhered to the inner wall of the tower body by a rotating blade device, thereby solving the problem that the diameter or height of the tower body is usually increased in order to increase the residence time of the gas-liquid mixture in the tower and the degassing area in order to improve the degassing effect during the use of the flash tower currently used for asphalt modification, resulting in an increase in the equipment footprint and cost, and the asphalt adhered to the inner wall of the tower body is not easy to remove.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flash tower for modified asphalt production, comprising a tower body, a feed pipe fixedly connected to one side of the outer surface of the tower body near the upper surface, a hollow tube rotatably mounted on the upper surface of the tower body, and the two ends of the hollow tube are respectively located inside and outside the tower body, an inclined spiral blade is welded on the outer surface of the hollow tube, and the inclined spiral blade is located inside the tower body, a horizontal spiral blade is welded on the outer surface of the inclined spiral blade, a plurality of air outlet holes are equidistantly arranged on the outer surface of the hollow tube along the spiral direction of the inclined spiral blade, a transmission box is fixedly mounted on the upper surface of the tower body, and the hollow tube passes through the transmission box, and a rotating motor is fixedly mounted on the upper surface of the transmission box.

[0006] Preferably, a transmission gear is fixedly sleeved on the outer surface of the hollow tube, a motor gear is fixedly connected to the end of the output shaft of the rotating motor, and the motor gear and the transmission gear are meshed, and the motor gear and the transmission gear are both located inside the transmission box.

[0007] Preferably, a motor switch is fixedly mounted on the front surface of the tower body, and the motor switch is electrically connected to the rotating motor.

[0008] Preferably, the angle a between the cross section of the inclined spiral blade and the axis of the hollow tube is an acute angle, and the cross section of the horizontal spiral blade is perpendicular to the axis of the hollow tube.

[0009] Preferably, a discharge valve is fixedly connected to the lower surface of the tower body.

[0010] Preferably, four legs are fixedly connected at equal intervals in a circular array near the edge of the lower surface of the tower body.

[0011] Preferably, a regulating valve is fixedly connected to the end of the feed pipe.

[0012] Preferably, an instrument interface is provided on one side of the upper surface of the tower body, and a temperature sensor, a pressure transmission sensor and a liquid level sensor are fixedly installed inside the instrument interface.

[0013] Preferably, a safety pressure valve is fixedly connected to the upper surface of the tower body.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] The utility model achieves the effect of extending the residence time and degassing area of ​​the asphalt gas-liquid mixture in the tower body without increasing the volume of the flash tower body by arranging a tower body, a hollow tube, horizontal spiral blades, inclined spiral blades, an air outlet and a rotating motor, thereby reducing the space occupied and the cost of the tower body, and at the same time facilitating the removal of asphalt adhered to the inner wall of the tower body by a rotating blade device. The asphalt gas-liquid mixture enters the tower body through a feed pipe and flows downward in a spiral along the horizontal spiral blades and the inclined spiral blades, thereby increasing the residence time and degassing area of ​​the asphalt gas-liquid mixture in the tower body, and in the process of spiral flow, the gas enters the hollow tube through the air outlet and is discharged from the hollow tube to the outside of the tower body, and in the process of driving the hollow tube to rotate by the rotating motor, the horizontal spiral blades can scrape off the asphalt adhered to the inner wall of the tower body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the partial main cross-sectional structure of the hollow tube of the utility model;

[0019] Figure 4 It is a partial three-dimensional schematic diagram of the hollow tube of the utility model.

[0020] Figure numerals: 1. tower body; 2. instrument interface; 3. transmission box; 4. safety pressure valve; 5. hollow pipe; 6. rotating motor; 7. feed pipe; 8. regulating valve; 9. motor switch; 10. support leg; 11. discharge valve; 12. transmission gear; 13. motor gear; 14. horizontal spiral blade; 15. inclined spiral blade; 16. air outlet. DETAILED DESCRIPTION

[0021] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] like Figure 1-Figure 4 As shown, the utility model proposes a flash tower for modified asphalt production, including a tower body 1, a feed pipe 7 is fixedly connected to one side of the outer surface of the tower body 1 near the upper surface, and the modified asphalt gas-liquid mixture enters the tower body 1 through the feed pipe 7, and a hollow tube 5 is rotatably installed on the upper surface of the tower body 1, and the hollow tube 5 and the tower body 1 are rotatably connected by a bearing, and the two ends of the hollow tube 5 are respectively located inside and outside the tower body 1, and the outer surface of the hollow tube 5 is welded with an inclined spiral blade 15, and the inclined spiral blade 15 is located inside the tower body 1, and the outer surface of the inclined spiral blade 15 is welded with an inclined spiral blade 15. A horizontal spiral blade 14 is welded on the surface, and a number of air outlet holes 16 are equidistantly arranged on the outer surface of the hollow tube 5 along the spiral direction of the inclined spiral blade 15. The angle a between the cross section of the inclined spiral blade 15 and the axis of the hollow tube 5 is an acute angle, and the cross section of the horizontal spiral blade 14 is perpendicular to the axis of the hollow tube 5. The asphalt gas-liquid mixture flows in a spiral along the horizontal spiral blade 14, while the inclined spiral blade 15 prevents the spirally flowing asphalt gas-liquid mixture from contacting the hollow tube 5, thereby preventing the asphalt gas-liquid mixture from entering the interior of the hollow tube 5 through the air outlet holes 16.

[0023] A transmission box 3 is fixedly installed on the upper surface of the tower body 1, and the hollow tube 5 passes through the transmission box 3. A rotating motor 6 is fixedly installed on the upper surface of the transmission box 3. A transmission gear 12 is fixedly sleeved on the outer surface of the hollow tube 5. A motor gear 13 is fixedly connected to the end of the output shaft of the rotating motor 6, and the motor gear 13 and the transmission gear 12 are meshed. The motor gear 13 and the transmission gear 12 are both located inside the transmission box 3. The rotating motor 6 drives the hollow tube 5 to rotate through the meshing motor gear 13 and the transmission gear 12.

[0024] A motor switch 9 is fixedly installed on the front surface of the tower body 1, and the motor switch 9 is electrically connected to the rotating motor 6. A discharge valve 11 is fixedly connected to the lower surface of the tower body 1. Four legs 10 are fixedly connected in a circular array at equal intervals near the edge of the lower surface of the tower body 1. A regulating valve 8 is fixedly connected to the end of the feed pipe 7. The flow rate of the asphalt gas-liquid mixture entering the tower body 1 is controlled by the regulating valve 8. An instrument interface 2 is arranged on one side of the upper surface of the tower body 1. A temperature sensor, a pressure transmission sensor and a liquid level sensor are fixedly installed inside the instrument interface 2. The values ​​measured by the temperature sensor, the pressure sensor and the liquid level sensor are displayed in real time on the production operating table through an external OPC data computer screen, and can be connected to the factory central control DCS system for centralized monitoring at the same time. A safety pressure valve 4 is fixedly connected to the upper surface of the tower body 1. The safety pressure valve 4 can release the pressure when the pressure inside the tower body 1 is too high to protect the tower body 1 and the personnel.

[0025] When the utility model is in use, the asphalt gas-liquid mixture enters the tower body 1 through the feed pipe 7 and flows downward in a spiral along the horizontal spiral blades 14 and the inclined spiral blades 15, thereby increasing the residence time of the asphalt gas-liquid mixture in the tower body 1 and the degassing area, so there is no need to increase the volume of the tower body 1. In the process of spiral flow, the gas passes through the air outlet 16 and enters the hollow tube 5, and is discharged to the outside of the tower body 1 by the hollow tube 5. In the process of driving the hollow tube 5 to rotate by the rotating motor 6, the horizontal spiral blades 14 can scrape off the asphalt adhering to the inner wall of the tower body 1.

[0026] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A flash tower for producing modified asphalt, comprising a tower body (1), characterized in that: A feed pipe (7) is fixedly connected to one side of the outer surface of the tower body (1) near the upper surface; a hollow tube (5) is rotatably mounted on the upper surface of the tower body (1), and the two ends of the hollow tube (5) are respectively located inside and outside the tower body (1); an inclined spiral blade (15) is welded to the outer surface of the hollow tube (5), and the inclined spiral blade (15) is located inside the tower body (1); a horizontal spiral blade (14) is welded to the outer surface of the inclined spiral blade (15); a plurality of air outlet holes (16) are equidistantly arranged on the outer surface of the hollow tube (5) along the spiral direction of the inclined spiral blade (15); a transmission box (3) is fixedly mounted on the upper surface of the tower body (1), and the hollow tube (5) penetrates the transmission box (3); and a rotating motor (6) is fixedly mounted on the upper surface of the transmission box (3).

2. A flash tower for producing modified asphalt according to claim 1, characterized in that: A transmission gear (12) is fixedly sleeved on the outer surface of the hollow tube (5), a motor gear (13) is fixedly connected to the end of the output shaft of the rotating motor (6), and the motor gear (13) and the transmission gear (12) are meshed with each other. Both the motor gear (13) and the transmission gear (12) are located inside the transmission box (3).

3. A flash tower for producing modified asphalt according to claim 2, characterized in that: A motor switch (9) is fixedly mounted on the front surface of the tower body (1), and the motor switch (9) is electrically connected to the rotating motor (6).

4. The flash tower for producing modified asphalt according to claim 1, characterized in that: The angle a between the cross section of the inclined spiral blade (15) and the axis of the hollow tube (5) is an acute angle, and the cross section of the horizontal spiral blade (14) is perpendicular to the axis of the hollow tube (5).

5. The flash tower for producing modified asphalt according to claim 1, characterized in that: A discharge valve (11) is fixedly connected to the lower surface of the tower body (1).

6. The flash tower for producing modified asphalt according to claim 1, characterized in that: Four legs (10) are fixedly connected at equal intervals in a circular array near the edge of the lower surface of the tower body (1).

7. The flash tower for producing modified asphalt according to claim 1, characterized in that: The end of the feed pipe (7) is fixedly connected with a regulating valve (8).

8. The flash tower for producing modified asphalt according to claim 1, characterized in that: An instrument interface (2) is provided on one side of the upper surface of the tower body (1), and a temperature sensor, a pressure transmission sensor and a liquid level sensor are fixedly installed inside the instrument interface (2).

9. The flash tower for producing modified asphalt according to claim 1, characterized in that: A safety pressure valve (4) is fixedly connected to the upper surface of the tower body (1).

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