Tail gas tar separation and recovery device
By employing a heating layer and scraper structure in the exhaust gas tar separation and recovery device, the problem of tar adhesion and difficulty in discharge is solved, achieving complete tar discharge and corrosion prevention of the device, thus improving its practicality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-03-31
AI Technical Summary
In existing tar recovery devices, the tar adheres to the inner wall due to its viscosity after recovery, making it difficult to remove completely, which leads to corrosion of the device and shortens its service life.
A tail gas tar separation and recovery device was designed, which adopts a heating layer and scraper structure. The tar fluidity is increased by heating, and the scraper scrapes off the adhering tar. Combined with the inclined separation tube and electric heating wire coil, the tar fluidity is improved to ensure complete discharge.
This achieves complete tar removal, avoids internal wall corrosion, extends the service life of the device, and improves its practicality.
Smart Images
Figure CN224056709U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tar separation and recovery technology, specifically to a tail gas tar separation and recovery device. Background Technology
[0002] Tail gas tar is a black or dark brown viscous liquid obtained during the dry distillation of coal. It is a complex mixture of highly aromatic hydrocarbons, which is usually insoluble in water but soluble in organic solvents such as benzene and carbon disulfide.
[0003] Existing recycling devices often encounter problems after tar recovery. Because tar is quite viscous, it tends to adhere to the inner wall of the device, making it difficult to remove completely. Furthermore, tar is corrosive, and incomplete removal can easily corrode the recycling device, shortening its lifespan, making it inconvenient for users, and reducing the practicality of the recycling device. Utility Model Content
[0004] To address the problems mentioned in the background art, the purpose of this utility model is to provide a tail gas tar separation and recovery device with the advantage of clean discharge. This solves the problem that in existing recovery devices, after tar recovery, the tar is relatively viscous and will adhere to the inner wall of the recovery device, which makes it difficult to discharge the tar completely. At the same time, the tar is corrosive, and incomplete discharge can easily corrode the recovery device, shortening its service life.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a tail gas tar separation and recovery device, comprising a tank body, the bottom of which is conical, a heating layer disposed in the interlayer of the tank body, a connecting opening on the left wall of the tank body, a separation pipe fixedly connected inside the connecting opening, the separation pipe extending to the left side of the tank body, a cold air inlet on the left end of the surface of the separation pipe, a cold air pipe fixedly connected inside the cold air inlet, the cold air pipe communicating with the separation pipe, a discharge port on the bottom wall of the tank body, a discharge pipe connected to the bottom of the tank body, a discharge valve disposed inside the discharge pipe, an exhaust port connected to the right side of the top of the tank body, a motor fixedly connected to the top of the tank body, the output end of the motor penetrating into the interior of the tank body and fixedly connected to a rotating rod, a connecting rod fixedly connected to the right side of the surface of the rotating rod, a scraper fixedly connected to the right end of the connecting rod, the right side of the scraper fitting against the inner wall of the tank body, and the scraper slidingly connected to the inner wall of the tank body.
[0006] As a preferred embodiment of this utility model, the left end of the separation tube is inclined upward at 5°, the surface of the separation tube is wound with an electric heating wire coil, the electric heating wire coil is spaced apart from the cold air inlet, and the surface of the separation tube is covered with an insulation sleeve, the insulation sleeve is covered on the surface of the cold air pipe.
[0007] In a preferred embodiment of this invention, an annular plate is provided at the top of the exhaust port, a filter element is provided on the inner side of the annular plate, and the annular plate is connected to the exhaust port.
[0008] As a preferred embodiment of this utility model, a connecting ring is fixedly connected to the left end of the separating tube, and a plurality of fixing holes are through the side of the connecting ring, the fixing holes being distributed in a circular array, and a sealing gasket is fixedly connected to the left side of the connecting ring.
[0009] As a preferred embodiment of this utility model, the surface of the air duct is covered with an insulation layer, the insulation layer being made of glass wool, and the surface of the insulation layer is covered with a waterproof layer, the waterproof layer being made of tar paper.
[0010] In a preferred embodiment of this invention, a cylinder is fixedly connected to the inner side of the annular plate, the inner side of the cylinder is fixedly connected to the filter element, the outer surface of the cylinder is provided with external threads, the inner wall of the exhaust port is provided with internal threads, and the exhaust port is threadedly connected to the cylinder.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] 1. This utility model, through the setting of the scraper, when it is necessary to completely drain the tar inside the tank, activates the heating layer to heat the inner wall of the tank, increasing the temperature and fluidity of the tar adhering to the inner wall of the tank. Simultaneously, the motor drives the rotating rod to rotate, which in turn drives the connecting rod to rotate, causing the scraper to rotate in a circular motion. The rotating scraper scrapes the adhering tar off the inner wall of the tank and discharges it through the discharge port, ensuring complete tar removal. This prevents incomplete tar removal from corroding the inner wall of the tank and reducing its service life, making it more convenient for users and improving the practicality of the recycling device.
[0013] 2. By setting up an electric heating coil, when heating the tar adhering to the inner wall of the tank, the cold air of the cold air pipe is first turned off, and at the same time the electric heating coil is turned on to heat the separation tube. This raises the temperature of the tar adhering to the inner wall of the separation tube, increases its fluidity, and allows it to flow into the tank through the inclined angle of the separation tube and be discharged from the discharge port. This avoids the tar corroding the separation tube and shortening its service life, and further improves the practicality of the device. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0015] Figure 2 This is a frontal sectional view of the structure of this utility model;
[0016] Figure 3 This is a front view schematic diagram of the separation tube structure of this utility model;
[0017] Figure 4 This is a top view schematic diagram of the filter element structure of this utility model;
[0018] Figure 5 This is a partial frontal cross-sectional view of the air duct structure of this utility model.
[0019] In the diagram: 1. Tank body; 2. Connecting port; 3. Separation pipe; 4. Cold air inlet; 5. Cold air pipe; 6. Discharge port; 7. Discharge pipe; 8. Discharge valve; 9. Exhaust port; 10. Motor; 11. Rotating rod; 12. Connecting rod; 13. Scraper; 14. Heating coil; 15. Insulation sleeve; 16. Annular plate; 17. Filter element; 18. Connecting ring; 19. Fixing hole; 20. Sealing gasket; 21. Insulation layer; 22. Waterproof layer; 23. Heating layer; 24. Cylinder. Detailed Implementation
[0020] 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.
[0021] like Figures 1 to 5 As shown, a tail gas tar separation and recovery device includes a tank 1 with a conical bottom. A heating layer 23 is provided in the interlayer of the tank 1. A connecting port 2 is provided on the left wall of the tank 1, and a separation pipe 3 is fixedly connected inside the connecting port 2. The separation pipe 3 extends to the left side of the tank 1. A cold air inlet 4 is provided at the left end of the surface of the separation pipe 3, and a cold air pipe 5 is fixedly connected inside the cold air inlet 4, communicating with the separation pipe 3. A discharge port 6 is provided on the bottom wall of the tank 1. The bottom of tank 1 is connected to a discharge pipe 7, and a discharge valve 8 is installed inside the discharge pipe 7. The right side of the top of tank 1 is connected to an exhaust port 9. A motor 10 is fixedly connected to the top of tank 1. The output end of the motor 10 passes through the inside of tank 1 and is fixedly connected to a rotating rod 11. A connecting rod 12 is fixedly connected to the right side of the surface of the rotating rod 11. A scraper 13 is fixedly connected to the right end of the connecting rod 12. The right side of the scraper 13 is in contact with the inner wall of tank 1, and the scraper 13 is slidably connected to the inner wall of tank 1.
[0022] refer to Figures 1 to 3 The left end of the separator 3 is tilted upward at 5°. The surface of the separator 3 is wrapped with an electric heating wire coil 14, which is spaced apart from the cold air inlet 4. The surface of the separator 3 is covered with an insulation sleeve 15, which is placed on the surface of the cold air pipe 5.
[0023] As a technical optimization of this utility model, by setting the heating coil 14, when heating the tar adhering to the inner wall of the tank 1, the cold air of the cold air pipe 5 is first turned off, and at the same time the heating coil 14 is turned on to heat the separation tube 3, so that the tar adhering to the inner wall of the separation tube 3 is heated to increase its fluidity, and flows into the tank 1 through the inclined angle of the separation tube 3 and is discharged from the discharge port 6, thus avoiding the corrosion of the separation tube 3 by the tar and shortening its service life, and further improving the practicality of the device.
[0024] refer to Figure 1 , Figure 2 and Figure 4 An annular plate 16 is provided at the top of the exhaust port 9, and a filter element 17 is provided on the inner side of the annular plate 16. The annular plate 16 is connected to the exhaust port 9.
[0025] As a technical optimization of this utility model, the filter element 17 can filter the separated exhaust gas and the gas generated by heating tar, thus avoiding the problem of air pollution caused by their direct emission.
[0026] refer to Figure 1 and Figure 2 A connecting ring 18 is fixedly connected to the left end of the separation tube 3. Several fixing holes 19 are passed through the side of the connecting ring 18. The fixing holes 19 are distributed in a circular array. A sealing gasket 20 is fixedly connected to the left side of the connecting ring 18.
[0027] As a technical optimization of this utility model, the connection ring 18 and the sealing gasket 20 facilitate the installation and connection of the separation pipe 3 and the exhaust gas pipe. At the same time, the sealing gasket 20 improves the sealing effect at the connection and avoids the occurrence of environmental pollution caused by exhaust gas leakage.
[0028] refer to Figure 1 and Figure 5 The surface of the air duct 5 is covered with an insulation layer 21, which is made of glass wool. The surface of the insulation layer 21 is covered with a waterproof layer 22, which is made of tar paper.
[0029] As a technical optimization of this utility model, the insulation layer 21 and the waterproof layer 22 can keep the cold air inside the cold air pipe 5 warm, preventing the cold energy from being lost too quickly. At the same time, the waterproof layer 22 isolates water vapor, preventing the formation of condensation droplets on the surface of the cold air pipe 5 and the insulation layer 21, which would lead to accelerated condensation and loss, thereby improving the condensation efficiency of tar.
[0030] refer to Figure 4 A cylinder 24 is fixedly connected to the inner side of the annular plate 16. The inner side of the cylinder 24 is fixedly connected to the filter element 17. The outer surface of the cylinder 24 is provided with external threads, and the inner wall of the exhaust port 9 is provided with internal threads. The exhaust port 9 is threadedly connected to the cylinder 24.
[0031] As a technical optimization of this utility model, by setting up the cylinder 24, the annular plate 16 can be rotated to make the cylinder 24 rotate out of the exhaust port 9, so that the filter element 17 can be cleaned and replaced, which greatly shortens the loading and unloading time of the filter element 17 and avoids the impact of long loading and unloading time on the tar recovery work.
[0032] The working principle and usage process of this utility model are as follows: In use, the user first connects the exhaust gas pipe to the left end of the separator pipe 3 via the connecting ring 18 and the fixing hole 19, and then injects cold air through the cold air pipe 5, causing the tar in the exhaust gas to condense and flow into the interior of the tank 1. Simultaneously, the separated exhaust gas is filtered through the filter element 17 and discharged. At the same time, the tar inside the tank 1 is discharged and collected through the discharge pipe 7. When it is necessary to completely drain the tar from the tank 1, first turn off the cold air from the cold air pipe 5, then activate the heating layer 23 to heat the inner wall of the tank 1, and then activate the heating coil 14 to heat the separator pipe 3. Heating is performed to increase the temperature of the tar adhering to the inner wall of the tank 1 and the separator 3, thereby increasing its fluidity. The tar inside the separator 3 flows into the tank 1 through the inclined angle of the separator 3. Then, the motor 10 is started to drive the rotating rod 11 to rotate. The rotating rod 11 drives the connecting rod 12 to rotate. The connecting rod 12 drives the scraper 13 to rotate in a circle. The rotating scraper 13 scrapes the adhering tar off the inner wall of the tank 1 and discharges it through the discharge port 6, so that the tar is completely discharged. At the same time, the annular plate 16 can be rotated as needed to make the cylinder 24 rotate out of the exhaust port 9, so that the filter element 17 can be cleaned and replaced.
[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0034] 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 tail gas tar separation and recovery device comprising a tank body (1), characterized in that: The bottom of the tank body (1) is conical, a heating layer (23) is arranged in the sandwich of the tank body (1), a communication port (2) is arranged on the left wall of the tank body (1), a separation pipe (3) is fixedly connected inside the communication port (2), the separation pipe (3) extends to the left side of the tank body (1), a cold air inlet (4) is arranged on the left end of the surface of the separation pipe (3), a cold air pipe (5) is fixedly connected inside the cold air inlet (4), the cold air pipe (5) is communicated with the separation pipe (3), a discharge port (6) is arranged on the bottom wall of the tank body (1), a discharge pipe (7) is communicated with the bottom of the tank body (1), a discharge valve (8) is arranged inside the discharge pipe (7), a gas outlet (9) is communicated with the right side of the top of the tank body (1), a motor (10) is fixedly connected to the top of the tank body (1), the output end of the motor (10) penetrates into the inside of the tank body (1) and is fixedly connected with a rotating rod (11), a connecting rod (12) is fixedly connected to the right side of the surface of the rotating rod (11), a scraping strip (13) is fixedly connected to the right end of the connecting rod (12), the right side of the scraping strip (13) is attached to the inner wall of the tank body (1), and the scraping strip (13) is slidingly connected with the inner wall of the tank body (1).
2. The tail gas tar separation and recovery device according to claim 1, characterized in that: The left end of the separation pipe (3) is inclined upward, the left end of the separation pipe (3) is inclined upward by 5°, an electric heating wire ring (14) is arranged on the surface of the separation pipe (3), the electric heating wire ring (14) is arranged at intervals with the cold air inlet (4), and a heat preservation sleeve (15) is sleeved on the surface of the separation pipe (3).
3. The tail gas tar separation and recovery device according to claim 1, characterized in that: An annular plate (16) is arranged on the top of the gas outlet (9), a filter element (17) is arranged on the inner side of the annular plate (16), and the annular plate (16) is communicated with the gas outlet (9).
4. The tail gas tar separation and recovery device according to claim 1, characterized in that: A connecting ring (18) is fixedly connected to the left end of the separation pipe (3), a plurality of fixing holes (19) are penetrated through the side surface of the connecting ring (18), the fixing holes (19) are circularly arranged, a sealing gasket (20) is fixedly connected to the left side of the connecting ring (18).
5. The tail gas tar separation and recovery device according to claim 1, characterized in that: A heat preservation layer (21) is sleeved on the surface of the cold air pipe (5), the material of the heat preservation layer (21) is glass wool, a waterproof layer (22) is sleeved on the surface of the heat preservation layer (21), and the material of the waterproof layer (22) is oil felt.
6. The tail gas tar separation and recovery device according to claim 3, characterized in that: A cylindrical (24) is fixedly connected to the inner side of the annular plate (16), the inner side of the cylindrical (24) is fixedly connected with the filter element (17), the outer surface of the cylindrical (24) is provided with external threads, the inner surface of the inner wall of the gas outlet (9) is provided with internal threads, and the gas outlet (9) is threadedly connected with the cylindrical (24).