Retention tower for asphalt treatment

Abstract

The utility model belongs to the technical field of asphalt treatment equipment, and particularly relates to a retention tower for asphalt treatment, which comprises a retention tower body and an asphalt circulating component serially connected to one side of the retention tower body, and an emergency discharge outlet for emergency discharge is further formed in the outer wall of one side of the retention tower body. A connecting pipeline communicated with the asphalt circulating assembly is arranged at one end of the emergency discharging outlet, a first gate valve and a second gate valve which are connected with the asphalt circulating assembly and the emergency discharging outlet are arranged at the two ends of the connecting pipeline respectively, and a pipeline emptying opening is formed between the first gate valve and the connecting pipeline; according to the utility model, the emergency discharge outlet and the connecting pipeline are additionally arranged on the retention tower body, and the emergency discharge outlet and the asphalt circulating assembly are mutually standby lines through the connecting pipeline, so that asphalt in the retention tower body is conveniently discharged in emergency, and temporary pressure tapping is avoided.

Description

Technical Field

[0001] This utility model belongs to the technical field of asphalt treatment equipment, and specifically relates to a retention tower for asphalt treatment. Background Technology

[0002] The retention tower is a device used in asphalt production, and its inherent poor fluidity makes it prone to solidification. During plant shutdowns, the continuous temperature reduction within the tower can lead to secondary incidents where coking and blockage of the flow channels in the bottom outlet pipe prevent the discharge of liquid asphalt, adding uncertainty to planned maintenance. Removing the asphalt trapped inside the tower becomes a challenging problem. Solid asphalt has very poor thermal conductivity, and waiting for it to cool naturally and solidify before manual cleaning could take 40-60 days. Temporary pressurized tapping poses significant risks, and on-site discharge does not meet environmental and safety requirements. Therefore, a retention tower for asphalt treatment is urgently needed to solve these problems. Utility Model Content

[0003] The purpose of this invention is to provide a retention tower for asphalt treatment, in order to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a retention tower for asphalt treatment, comprising: a retention tower body and an asphalt circulation assembly connected in series on one side of the retention tower body, wherein an emergency discharge outlet for emergency discharge is provided on the outer wall of one side of the retention tower body, and one end of the emergency discharge outlet is provided with a connecting pipe connected to the asphalt circulation assembly.

[0005] Preferably, the two ends of the connecting pipe are respectively provided with a first gate valve and a second gate valve connecting the asphalt circulation component and the emergency discharge outlet, and a pipe vent is provided between the first gate valve and the connecting pipe.

[0006] Preferably, a nitrogen purging valve assembly is also provided between the second gate valve and the connecting pipe.

[0007] Preferably, the emergency discharge outlet is located at least 4.5 meters above the bottom of the retention tower body.

[0008] Preferably, the outside of the connecting pipe is also provided with an insulation sleeve for heat preservation.

[0009] Preferably, the insulation sleeve includes a heat-conducting coil spirally wound on the connecting pipe, and the two ends of the heat-conducting coil are provided with heating components for hot water supply.

[0010] Preferably, the heating component includes a water storage tank and an inlet pipe and an outlet pipe installed at the top of the water storage tank. The two ends of the heat-conducting coil are respectively connected to the inlet pipe and the outlet pipe. A water pump immersed in the liquid is installed at the other end of the inlet pipe. A heating rod for heating the liquid is provided in the water storage tank.

[0011] Preferably, the top of the water storage tank is provided with a liquid replenishment port for adding liquid, and the inner wall of the top of the water storage tank is provided with a liquid level sensor for monitoring the liquid level.

[0012] Preferably, an inlet and an outlet are provided sequentially from top to bottom on one side of the bottom of the retention tower body, the asphalt circulation component is installed in series between the inlet and the outlet, and a discharge pipe for discharging material is provided between the bottom of the retention tower body and the outlet.

[0013] Preferably, the asphalt circulation assembly comprises, in sequence, multiple sets of circulation pumps, circulation pump flow meters, extraction pumps, and raw material storage tanks.

[0014] Compared with the prior art, this utility model has the following advantages:

[0015] (1) This utility model uses an emergency discharge outlet and connecting pipe added to the main body of the retention tower. The emergency discharge outlet and connecting pipe and asphalt circulation component serve as backup lines for each other, which facilitates the emergency discharge of asphalt in the main body of the retention tower and avoids temporary pressurized opening.

[0016] (2) The present invention facilitates the on / off adjustment of the connecting pipe by adding a first gate valve, a second gate valve and a pipe vent, and at the same time vents the connecting pipe through the pipe vent to prevent the connecting pipe from being blocked when not in use.

[0017] (3) This utility model uses a nitrogen purging valve group to purge the flow speed of asphalt in the connecting pipe, so that the asphalt can pass through the connecting pipe quickly.

[0018] (4) The present invention uses an added insulation sleeve to keep the asphalt in the connecting pipe warm, thereby preventing the asphalt from solidifying and blocking the connecting pipe. Attached Figure Description

[0019] Figure 1 This is a partial perspective view of the insulation sleeve and connecting pipe of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of this utility model;

[0021] Figure 3 This is a cross-sectional view of the water storage tank of this utility model;

[0022] In the diagram: 1. Retention tower body; 2. Asphalt circulation assembly; 3. Discharge port; 4. First gate valve; 5. Pipeline vent; 6. Connecting pipe; 7. Second gate valve; 8. Feed inlet; 9. Emergency discharge outlet; 10. Nitrogen purging valve assembly; 11. Liquid inlet pipe; 12. Liquid outlet pipe; 13. Water storage tank; 14. Water pump; 15. Heating rod; 16. Heat transfer coil; 17. Discharge pipe; 18. Liquid replenishment port; 19. Liquid level sensor. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] refer to Figure 2 As shown, the present invention provides a retention tower for asphalt treatment, comprising: a retention tower body 1 and an asphalt circulation assembly 2 connected in series on one side of the retention tower body 1. An emergency discharge outlet 9 for emergency discharge is also provided on the outer wall of one side of the retention tower body 1. One end of the emergency discharge outlet 9 is provided with a connecting pipe 6 connected to the asphalt circulation assembly 2.

[0025] Combination Figure 2 As shown, the two ends of the connecting pipe 6 are respectively equipped with a first gate valve 4 and a second gate valve 7 connecting the asphalt circulation component 2 and the emergency discharge outlet 9. A pipe vent 5 is provided between the first gate valve 4 and the connecting pipe 6.

[0026] Combination Figure 2 As shown, a feed inlet 8 and a discharge outlet 3 are arranged sequentially from top to bottom on one side of the bottom of the retention tower body 1. The asphalt circulation component 2 is installed in series between the feed inlet 8 and the discharge outlet 3. A discharge pipe 17 for discharging material is provided between the bottom of the retention tower body 1 and the discharge outlet 3.

[0027] Combination Figure 2 As shown, the asphalt circulation component 2 consists of multiple sets of circulation pumps, circulation pump flow meters, extraction pumps, and raw material storage tanks.

[0028] Combination Figure 2 As shown, the emergency discharge outlet 9 is located at least 4.5 meters above the bottom of the retention tower body 1.

[0029] The above describes the use of the retention tower body 1, asphalt circulation component 2, emergency discharge outlet 9 and connecting pipe 6 provided by this utility model. A new DN150 emergency discharge outlet 9 is added on the tower wall 4.5m above the bottom vertical wall of the retention tower body 1, and a second gate valve 7 is installed. The connecting pipe 6 is used to connect to the inlet of the asphalt circulation pump. A first gate valve 4 is installed before the inlet pipe of the circulation pump, and a DN50 vent outlet 5 is installed before the valve. Both the first gate valve 4 and the second gate valve 7 are DN150 gate valves.

[0030] If the blockage of the bottom extraction channel of the modified asphalt unit occurs during the shutdown, an emergency discharge process can be used. The process is: circulation pump → backup line with extraction pump → cooling equipment → raw material storage tank. The circulation pump replaces the extraction pump to release the liquid asphalt in the main body of tower 1, avoiding temporary pressurized opening.

[0031] In this utility model, combined with Figure 2 As shown, a nitrogen purging valve assembly 10 is also provided between the second gate valve 7 and the connecting pipe 6 in this embodiment.

[0032] The nitrogen purging valve assembly 10 provided by this utility model is a prior art technology, consisting of a valve body, valve cover, air chamber, piston, valve and other parts. The flow rate of asphalt in the connecting pipe 6 can be adjusted by air pressure.

[0033] In this utility model, combined with Figure 1 As shown, the connecting pipe 6 in this embodiment is also provided with an insulation sleeve for heat preservation.

[0034] Combination Figure 1 As shown, the insulation sleeve includes a heat-conducting coil 16 spirally wound on the connecting pipe 6, and the two ends of the heat-conducting coil 16 are provided with heating components for hot water supply.

[0035] Combination Figure 3 As shown, the heating assembly includes a water storage tank 13 and an inlet pipe 11 and an outlet pipe 12 installed at the top of the water storage tank 13. The two ends of the heat conduction coil 16 are respectively connected to the inlet pipe 11 and the outlet pipe 12. The other end of the inlet pipe 11 is equipped with a water pump 14 immersed in the liquid. The water storage tank 13 is provided with a heating rod 15 for heating the liquid.

[0036] As described above, when using the heating component provided by this utility model, the liquid medium in the water storage tank 13 is heated by the heating plate. The heated medium circulates between the heat-conducting coil 16 and the water storage tank 13 through the water pump 14, the inlet pipe 11 and the outlet pipe 12, which facilitates the formation of an insulation zone outside the connecting pipe 6, preventing asphalt from cooling in the connecting pipe 6 and thus preventing the connecting pipe 6 from being blocked.

[0037] Furthermore, to facilitate the replenishment of the heating medium, refer to Figure 1 and Figure 3 As shown, the top of the water storage tank 13 is also provided with a liquid replenishment port 18 for adding liquid, and a liquid level sensor 19 for monitoring the liquid level is provided on the inner wall of the top of the water storage tank 13. The liquid replenishment port 18 facilitates the addition of heating medium to the water storage tank 13. The heating medium can be a liquid medium such as water or heated oil. The liquid level sensor 19 prevents the liquid level from falling below the heating rod 15, thus ensuring that the heating rod 15 is always below the liquid level.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A retention column for asphalt treatment, characterized in that, Include: The residence tower body (1) and the asphalt circulation assembly (2) connected in series on one side of the residence tower body (1), the outer wall of one side of the residence tower body (1) is also provided with an emergency discharge outlet (9) for emergency discharge, one end of the emergency discharge outlet (9) is provided with a connecting pipeline (6) communicated with the asphalt circulation assembly (2).

2. A retention column for asphalt treatment according to claim 1, characterized in that: Both ends of the connecting pipeline (6) are respectively provided with a first gate valve (4) and a second gate valve (7) connected with the asphalt circulation assembly (2) and the emergency discharge outlet (9), and a pipeline vent (5) is arranged between the first gate valve (4) and the connecting pipeline (6).

3. A retention column for asphalt treatment according to claim 2, characterized in that: The second gate valve (7) and the connecting pipeline (6) are also provided with a nitrogen purge valve group (10).

4. A retention column for asphalt treatment as defined in claim 1, wherein: The emergency discharge outlet (9) is arranged at least 4.5M above the bottom end of the residence tower body (1).

5. A retention column for asphalt treatment as defined in claim 1, wherein: The outside of the connecting pipeline (6) is also provided with a heat preservation sleeve for heat preservation.

6. A retention column for asphalt treatment according to claim 5, characterized in that: The heat preservation sleeve includes a heat conducting coil (16) spirally wound on the connecting pipeline (6), and both ends of the heat conducting coil (16) are provided with a heat supply assembly provided with hot water.

7. A retention column for asphalt treatment according to claim 6, characterized in that: The heat supply assembly includes a water storage tank (13), an inlet pipe (11) and an outlet pipe (12) installed on the top of the water storage tank (13), both ends of the heat conducting coil (16) are communicated and installed on the inlet pipe (11) and the outlet pipe (12), respectively, the other end of the inlet pipe (11) is provided with a water pump (14) immersed in the liquid, and the water storage tank (13) is provided with a heating rod (15) for heating the liquid.

8. A retention column for asphalt treatment according to claim 7, characterized in that: The top of the water storage tank (13) is also provided with a liquid supplementing opening (18) for liquid addition, and the inner wall of the top of the water storage tank (13) is provided with a liquid level sensor (19) for liquid level monitoring.

9. A retention column for asphalt treatment as defined in claim 1, wherein: The bottom end of the residence tower body (1) is provided with an inlet (8) and an outlet (3) from top to bottom on one side, the asphalt circulation assembly (2) is connected and installed between the inlet (8) and the outlet (3), and the bottom end of the residence tower body (1) and the outlet (3) are provided with a discharge pipe (17) for discharging.

10. A retention column for asphalt treatment as defined in claim 1, wherein: The asphalt circulation assembly (2) includes a plurality of circulating pumps, circulating pump flow meters, production pumps and raw material storage tanks in sequence.

Images