Asphalt smoke waste gas condensation recovery device with cooling structure

Abstract

The utility model discloses an asphalt smoke waste gas condensation recovery device with a cooling structure. The asphalt smoke waste gas condensation recovery device comprises a gas collection tank and a cooling tank. An air inlet pipe and an axial flow fan are arranged on the side wall of the air collecting tank, and high-temperature asphalt smoke is primarily cooled by using external cold air; a spiral condensing pipe and a cooling water jacket are arranged in the cooling tank, so that substances such as tar in the asphalt smoke are further condensed, the condensing efficiency is improved, and the thermal load of equipment is reduced. An intermittent vibration mechanism is arranged at the bottom of the cooling tank, a jacking block is driven by a rotating disc to interact with rollers of a collecting box, periodic up-down vibration of the collecting box is achieved, condensate accumulation and blockage are prevented, waste gas smoothness is improved, and manual maintenance frequency is reduced. The device is reasonable in structure, high in condensation efficiency, stable in operation and suitable for efficient recovery treatment of asphalt smoke waste gas.

Description

Technical Field

[0001] This application relates to the field of waste gas recovery technology, specifically to a condensation and recovery device for asphalt fume waste gas with a cooling structure. Background Technology

[0002] Asphalt is an important material widely used in highway construction, waterproofing projects, and building materials. During its high-temperature processing, production, and use, such as heating and mixing, melting and paving, and refining, asphalt produces a large amount of smoky waste gas due to physical volatilization and chemical decomposition; this is commonly referred to as asphalt fume. This type of waste gas has a complex composition, containing various harmful substances such as polycyclic aromatic hydrocarbons, organic particulate matter, and volatile organic compounds. It has an irritating odor and a certain degree of toxicity, posing a significant threat to human health and environmental safety, and is a typical example of hazardous industrial waste gas.

[0003] Currently, among the technologies for treating asphalt fumes, condensation recovery, as a resource recovery method, can condense and capture some recyclable components in asphalt fumes, possessing certain economic and environmental value. However, existing condensation recovery devices mostly directly cool and condense high-temperature exhaust gases, without fully considering the impact of high initial exhaust gas temperature on recovery efficiency and equipment stability. Higher-temperature asphalt fumes not only reduce condensation efficiency but may also cause excessive heat load on key components in the condensation device, thereby affecting the long-term operational stability and service life of the equipment. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this application is to provide an asphalt fume condensation and recovery device with a cooling structure to solve the problems mentioned in the background technology.

[0005] According to one aspect of this application, an asphalt fume condensation and recovery device with a cooling structure includes a gas collecting tank and a cooling tank. A support frame is fixedly connected to the bottom of the outer wall of the gas collecting tank. An air inlet pipe is fixedly connected to the side wall of the gas collecting tank, and an axial flow fan is also fixedly installed on the side wall of the gas collecting tank. A cooling tank is located to one side of the outside of the gas collecting tank. A support frame is fixedly connected to the bottom of the outer wall of the cooling tank. A spiral condenser tube is fixedly installed inside the cooling tank. The upper end of the spiral condenser tube is connected to the gas collecting tank. A cooling water jacket is fixedly fitted onto the outer wall of the spiral condenser tube. An intermittent vibration mechanism is installed at the bottom inside the cooling tank. A collection box is installed on the intermittent vibration mechanism. The lower end of the spiral condenser tube is directly above the collection box. An air outlet pipe is fixedly connected to the outer wall of the cooling tank at the location of the collection box.

[0006] Preferably, the intermittent vibration mechanism includes a motor, a rotating column, a rotating disk, and lifting blocks. The motor is fixedly installed at the bottom of the cooling tank. The output shaft of the motor is fixedly connected to the rotating column via a coupling. The rotating column vertically penetrates the bottom plate of the cooling tank and is rotatably connected to it via a bearing. The upper end of the rotating column is fixedly connected to the center of the lower surface of the rotating disk. At least two lifting blocks are evenly and equidistantly fixed along the circumference of the upper surface edge of the rotating disk, and the lifting blocks are provided with an inclined surface on one side of the rotating direction of the rotating disk. A collection box is provided above the rotating disk. At least two rollers are evenly and equidistantly rotatably installed along the circumference of the bottom edge of the collection box, and the rollers are connected to the bottom surface of the collection box via rotating supports. The rollers are in rolling contact with the upper surface of the rotating disk. The distribution diameter of the rollers is consistent with the distribution diameter of the lifting blocks. The rollers can contact the lifting blocks and move along their inclined surfaces.

[0007] Preferably, at least two vertically arranged fixing posts are fixedly fixed at equal intervals along the circumference of the bottom surface inside the cooling tank, located on the outer periphery of the collection box. The outer wall of the fixing post is slidably connected to the side wall of the collection box. A spring is sleeved on the outer wall of the fixing post. The upper end of the spring is fixedly connected to the bottom of the collection box, and the lower end of the spring is fixedly connected to the bottom surface inside the cooling tank.

[0008] Preferably, the top of the gas collecting tank is provided with a gas outlet, which is connected to one end of a connecting pipe. The connecting pipe is fixedly installed on the top of the gas collecting tank, and the other end of the connecting pipe is connected to one end of a gas delivery pipe. The other end of the gas delivery pipe passes through the cooling tank and is connected to the upper port of the spiral condenser. The outer wall of the gas delivery pipe is sealed to the cooling tank.

[0009] Preferably, the number of cooling water jackets is several, and the several cooling water jackets are arranged in a spiral array along the surface of the spiral condenser tube.

[0010] Preferably, a door is rotatably provided on the side wall of the cooling tank, and the opening position of the door corresponds to the position of the collection box.

[0011] The advantages of this application compared to existing technologies are as follows: This application provides a condensation and recovery device for asphalt fume waste gas with a cooling structure. By installing an axial flow fan on the side wall of the gas collecting tank, it utilizes external cold air to conduct preliminary heat exchange with the high-temperature asphalt fume, reducing the temperature of the asphalt fume. Subsequently, the asphalt fume enters a spiral condenser tube, where, under the action of a cooling water jacket, substances such as tar in the asphalt fume condense into a liquid state and flow out from the spiral condenser tube. This effectively avoids the efficiency reduction problem caused by high-temperature waste gas directly entering the condensation system, thereby improving the condensation and recovery efficiency and effectively reducing the risk of wear and damage to the equipment due to long-term exposure to high-temperature environments. Furthermore, by setting intermittent vibration... The rotating mechanism, activated by a motor, causes the rotating column to drive the rotating disk to rotate. Simultaneously, the rotating disk drives the lifting block to rotate synchronously. Because the collection box is restricted to vertical movement by the fixed column, when the lifting block rotates to the position of the roller, the roller moves along the inclined surface of the lifting block, lifting the collection box. After the lifting block passes the roller position, the collection box falls. The continuously rotating disk causes the collection box at the bottom of the cooling tank to periodically vibrate up and down during operation, preventing tar and other condensates from accumulating and clogging the spiral condenser outlet, improving the unobstructed flow of exhaust gas, and avoiding the problem of excessively frequent manual cleaning. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of an asphalt fume condensation and recovery device with a cooling structure according to an embodiment of this application.

[0013] Figure 2 This is a schematic diagram of the spiral condenser tube of an asphalt fume condensation and recovery device with a cooling structure according to an embodiment of this application.

[0014] Figure 3 This is a schematic diagram of the rotating disk of an asphalt fume condensation and recovery device with a cooling structure according to an embodiment of this application.

[0015] Figure 4 yes Figure 3 Enlarged structural diagram of section A in the middle.

[0016] Reference numerals in the attached drawings: 1. Gas collection tank; 11. Support 1; 111. Inlet pipe; 12. Cooling tank; 121. Support 2; 122. Door; 2. Axial flow fan; 21. Connecting pipe; 211. Gas delivery pipe; 22. Spiral condenser pipe; 221. Cooling water jacket; 23. Outlet pipe; 3. Motor; 31. Rotating column; 311. Rotating disc; 312. Lifting block; 32. Fixed column; 33. Collection box; 331. Rotating support; 332. Roller; 34. Spring. Detailed Implementation

[0017] To make the content of this application easier to understand, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] like Figure 1 and Figure 2 As shown, an asphalt fume condensation and recovery device with a cooling structure includes a gas collecting tank 1 and a cooling tank 12. A support bracket 11 is fixedly connected to the bottom of the outer wall of the gas collecting tank 1. An air inlet pipe 111 is fixedly connected to the side wall of the gas collecting tank 1, and an axial flow fan 2 is also fixedly installed on the side wall of the gas collecting tank 1. The cooling tank 12 is located to one side of the outside of the gas collecting tank 1. A support bracket 121 is fixedly connected to the bottom of the outer wall of the cooling tank 12. A spiral condenser pipe 22 is fixedly installed inside the cooling tank 12. An air outlet is opened at the top of the gas collecting tank 1, and the air outlet is connected to one end of a connecting pipe 21. The connecting pipe 21 is fixedly installed at the top of the gas collecting tank 1, and the other end of the connecting pipe 21 is connected to one end of a gas delivery pipe 211. The other end of the gas delivery pipe 211 passes through the cooling tank 12 and is connected to the upper end of the spiral condenser pipe 22. The outer wall of the gas delivery pipe 211 is sealed to the cooling tank 12. A cooling fan is fixedly sleeved on the outer wall of the spiral condenser pipe 22. The cooling water jackets 221 are arranged in a spiral array along the surface of the spiral condenser tube 22. The structure of the spiral condenser tube 22, combined with the multiple spirally arranged cooling water jackets 221, increases the heat exchange area and heat exchange path, allowing the asphalt fumes to fully contact the cooling medium when flowing through the condenser tube, thereby improving heat exchange efficiency and further enhancing the condensation effect. In this design, an axial flow fan 2 is installed on the side wall of the gas collecting tank 1 to conduct preliminary heat exchange between the outside cold air and the high-temperature asphalt fumes, reducing the temperature of the asphalt fumes. Subsequently, the asphalt fumes enter the spiral condenser tube 22, where the tar and other substances in the asphalt fumes are condensed into liquid under the action of the cooling water jackets 221 and flow out from the spiral condenser tube 22. This effectively avoids the efficiency reduction problem caused by the direct entry of high-temperature exhaust gas into the condensation system, thereby improving the condensation recovery efficiency and effectively reducing the risk of wear and damage to the equipment due to long-term exposure to high-temperature environments.

[0019] In one embodiment, combined Figure 3 and Figure 4An intermittent vibration mechanism is provided at the bottom of the cooling tank 12. Specifically, the intermittent vibration mechanism includes a motor 3, a rotating column 31, a rotating disk 311, and lifting blocks 312. The motor 3 is fixedly installed at the bottom of the cooling tank 12. The output shaft of the motor 3 is fixedly connected to the rotating column 31 through a coupling. The rotating column 31 vertically penetrates the bottom plate of the cooling tank 12 and is rotatably connected to it through a bearing. The upper end of the rotating column 31 is fixedly connected to the center of the lower surface of the rotating disk 311. At least two lifting blocks 312 are evenly and equidistantly fixed along the circumference of the upper surface edge of the rotating disk 311, and the lifting blocks 312 are located on the rotating disk. An inclined surface is provided on one side of the rotating disk 311. A collection box 33 is provided above the rotating disk 311. The lower end of the spiral condenser tube 22 is directly above the collection box 33. At least two rollers 332 are evenly and equidistantly mounted on the bottom edge of the collection box 33, and the rollers 332 are connected to the bottom surface of the collection box 33 through a rotating support 331. The rollers 332 roll in contact with the upper surface of the rotating disk 311. The distribution diameter of the rollers 332 is consistent with the distribution diameter of the lifting block 312. The rollers 332 can contact the lifting block 312 and move along its inclined surface. In addition, the cooling tank 12 At least two vertically arranged fixing columns 32 are evenly and equidistantly fixed along the circumference of the collection box 33 on the inner bottom surface. The outer walls of the fixing columns 32 are slidably connected to the side walls of the collection box 33. A spring 34 is sleeved on the outer wall of the fixing column 32. The upper end of the spring 34 is fixedly connected to the bottom of the collection box 33, and the lower end of the spring 34 is fixedly connected to the inner bottom surface of the cooling tank 12. In this design, by setting an intermittent vibration mechanism, the starting of the motor 3 causes the rotating column 31 to drive the rotating disk 311 to rotate. The rotating disk 311 drives the lifting block 312 to rotate synchronously. The collection box 33 is restricted by the fixed column 32 and can only move up and down. When the lifting block 312 rotates to the position of the roller 332, the roller 332 will move along the inclined surface of the lifting block 312 and lift the collection box 33. After the lifting block 312 passes the position of the roller 332, the collection box 33 will fall. The continuously rotating disk 311 makes the collection box 33 located at the bottom of the cooling tank 12 periodically vibrate up and down during operation, preventing tar and other condensates from accumulating and clogging at the outlet of the spiral condenser pipe 22, improving the smoothness of the exhaust gas passage, and avoiding the problem of excessive manual cleaning frequency.

[0020] In one embodiment, combined Figures 1-3An outlet pipe 23 is fixedly connected to the outer wall of the cooling tank 12 at the location of the collection box 33, so that the uncondensed gas in the spiral condenser 22 can be discharged through the outlet pipe 23. A door 122 is rotatably provided on the side wall of the cooling tank 12. The opening position of the door 122 corresponds to the position of the collection box 33. The door 122, which can be opened and closed, is provided on the side wall of the cooling tank 12, so that users can easily inspect, clean or replace the collection box 33 and other mechanisms, thereby improving the maintenance convenience and usage efficiency of the device.

[0021] Working Principle: Asphalt fumes enter the gas collection tank 1 through the inlet pipe 111. Then, the axial flow fan 2 draws in outside cold air into the gas collection tank 1, causing the asphalt fumes to undergo initial heat exchange, thus reducing the exhaust gas temperature. Subsequently, the asphalt fumes enter the spiral condenser pipe 22 through the connecting pipe 21 and the gas delivery pipe 211. Because the outer wall of the spiral condenser pipe 22 is fitted with several cooling water jackets 221, the temperature of the asphalt fumes is further reduced, causing tar and other substances in the asphalt fumes to condense into a liquid state. The condensed liquid flows out through the spiral condenser pipe 22 and falls into the collection box 33, while the gas enters the next stage through the outlet pipe 23. This combination of air cooling and water cooling improves the condensation and recovery efficiency of the asphalt fumes, reduces energy consumption, and extends the equipment's lifespan. The service life is extended by starting the motor 3, which causes the rotating column 31 to drive the rotating disk 311 to rotate. As the rotating disk 311 rotates, it drives the lifting block 312 to move synchronously. Since the collection box 33 is restricted by the fixed column 32 to move only up and down, when the lifting block 312 rotates to the position of the roller 332, the roller 332 will move along the inclined surface of the lifting block 312 and lift the collection box 33. When the lifting block 312 passes the position of the roller 332, the collection box 33 will fall. The continuously rotating disk 311 causes the collection box 33 located at the bottom of the cooling tank 12 to periodically vibrate up and down during operation, preventing tar and other condensates from accumulating and clogging at the outlet of the spiral condenser pipe 22, improving the unobstructed flow of the exhaust gas passage, and avoiding the problem of excessive manual cleaning frequency.

[0022] The above embodiments are only used to illustrate the technical solutions of the embodiments of this application, and are not intended to limit them. Although the embodiments of this application have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features, without departing from the spirit and scope defined by the claims of this application.

Claims

1. A condensation and recovery device for asphalt fume exhaust gas with a cooling structure, comprising a gas collection tank (1) and a cooling tank (12), characterized in that, A bracket (11) is fixedly connected to the bottom of the outer wall of the gas collecting tank (1). An air inlet pipe (111) is fixedly connected to the side wall of the gas collecting tank (1). An axial flow fan (2) is also fixedly installed on the side wall of the gas collecting tank (1). A cooling tank (12) is located on one side of the outside of the gas collecting tank (1). A bracket (121) is fixedly connected to the bottom of the outer wall of the cooling tank (12). A spiral condenser pipe (22) is fixedly installed inside the cooling tank (12). The upper end of the condenser tube (22) is connected to the gas collection tank (1). A cooling water jacket (221) is fixedly fitted on the outer wall of the spiral condenser tube (22). An intermittent vibration mechanism is provided at the bottom of the cooling tank (12). A collection box (33) is provided on the intermittent vibration mechanism. The lower end of the spiral condenser tube (22) is directly above the collection box (33). An outlet pipe (23) is fixedly connected to the outer wall of the cooling tank (12) at the position of the collection box (33).

2. The asphalt fume condensation and recovery device with a cooling structure according to claim 1, characterized in that, The intermittent vibration mechanism includes a motor (3), a rotating column (31), a rotating disk (311), and lifting blocks (312). The motor (3) is fixedly installed at the bottom of the cooling tank (12). The output shaft of the motor (3) is fixedly connected to the rotating column (31) via a coupling. The rotating column (31) vertically penetrates the bottom plate of the cooling tank (12) and is rotatably connected to it via a bearing. The upper end of the rotating column (31) is fixedly connected to the center of the lower surface of the rotating disk (311). At least two lifting blocks (312) are evenly and equidistantly fixed along the circumference of the upper surface edge of the rotating disk (311), and the lifting blocks (312) are located at the bottom of the cooling tank (12). An inclined surface is provided on one side of the rotating disk (311) in the direction of rotation. The collection box (33) is provided above the rotating disk (311). At least two rollers (332) are evenly and equidistantly mounted on the bottom edge of the collection box (33) along its circumference. The rollers (332) are connected to the bottom surface of the collection box (33) through a rotating support (331). The rollers (332) are in rolling contact with the upper surface of the rotating disk (311). The distribution diameter of the rollers (332) is consistent with the distribution diameter of the lifting block (312). The rollers (332) can contact the lifting block (312) and move along its inclined surface.

3. The asphalt fume condensation and recovery device with a cooling structure according to claim 2, characterized in that, At least two vertically arranged fixing columns (32) are fixedly fixed at equal intervals along the circumference of the collection box (33) on the inner bottom surface of the cooling tank (12). The outer wall of the fixing column (32) is slidably connected to the side wall of the collection box (33). A spring (34) is sleeved on the outer wall of the fixing column (32). The upper end of the spring (34) is fixedly connected to the bottom of the collection box (33), and the lower end of the spring (34) is fixedly connected to the inner bottom surface of the cooling tank (12).

4. The asphalt fume condensation and recovery device with a cooling structure according to claim 1, characterized in that, The top of the gas collecting tank (1) is provided with an air outlet, which is connected to one end of the connecting pipe (21). The connecting pipe (21) is fixedly installed on the top of the gas collecting tank (1). The other end of the connecting pipe (21) is connected to one end of the gas supply pipe (211). The other end of the gas supply pipe (211) passes through the cooling tank (12) and is connected to the upper port of the spiral condenser pipe (22). The outer wall of the gas supply pipe (211) is sealed to the cooling tank (12).

5. The asphalt fume condensation and recovery device with a cooling structure according to claim 1, characterized in that, The number of cooling water jackets (221) is several, and the several cooling water jackets (221) are arranged in a spiral array along the surface of the spiral condenser tube (22).

6. The asphalt fume condensation and recovery device with a cooling structure according to claim 1, characterized in that, A door (122) is rotatably provided on the side wall of the cooling tank (12), and the opening position of the door (122) corresponds to the position of the collection box (33).

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