A recovery smelting device for coal tar pitch
By introducing a rotating rod and auger blades into the coal tar pitch recycling and smelting unit, the problem of discharge port blockage was solved, achieving efficient discharge while purifying smelting waste gas and improving environmental quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG OTHIA CHEMICAL CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-06-23
Smart Images

Figure CN224394813U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coal chemical technology, and in particular to a coal tar pitch recycling and smelting device. Background Technology
[0002] Coal tar pitch is a high-molecular-weight hydrocarbon mixture obtained from coal tar processing. It is a by-product of coal chemical industry. It is the residue left after coal tar distillation. It is a black or dark brown viscous or solid substance with significant adhesiveness, corrosion resistance and high carbon content. Coal tar pitch recycling and smelting equipment is a special equipment used to process coal tar pitch and reuse and recycle it through smelting.
[0003] In traditional coal tar pitch recycling and smelting equipment, coal tar pitch is first fed into the smelting furnace through the feed inlet. Then, the smelting furnace is heated to melt the coal tar pitch inside. After melting, it is discharged through the discharge outlet.
[0004] Although traditional coal tar pitch recycling and smelting equipment can complete the smelting operation of coal tar pitch, the smelted coal tar pitch is in a gel-like or viscous state when it is fed. The inside of the feed port lacks anti-clogging components. If the liquid coal tar pitch solidifies near the discharge port, it will cause channel blockage, thus affecting the discharge efficiency. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a coal tar pitch recycling and smelting device, which aims to improve the existing technology where, during feeding, the smelted coal tar pitch is in a gel-like or viscous state, the inside of the feeding port lacks anti-clogging components, and if the liquid coal tar pitch solidifies near the discharge port, it causes channel blockage.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] A coal tar pitch recycling and smelting apparatus, comprising:
[0008] Mounting rack;
[0009] Mounting plate, which is fixedly connected to the upper part of the mounting frame;
[0010] A smelting tank and a discharge port, wherein the smelting tank is fixedly connected to the middle part of the mounting plate, and the discharge port is fixedly connected to the bottom of the smelting tank;
[0011] A motor is mounted on the top of the smelting tank; a rotating rod is fixedly connected at the top to the output end of the motor and rotatably connected at the bottom to the inside of the smelting tank and the discharge port.
[0012] A connecting block and a mounting rod, wherein the connecting block is fixedly connected to the outer two sides of the rotating rod, and the mounting rod is fixedly connected to the outer periphery of the connecting block;
[0013] A stirring rod and an auger blades are provided, wherein the stirring rod is fixedly connected to the outside of the mounting rod, and the auger blades are fixedly connected to the bottom of the rotating rod.
[0014] And an exhaust gas treatment component, which is used to treat the gas generated during coal tar pitch smelting.
[0015] Furthermore, the waste gas treatment assembly includes a waste gas treatment box, which is fixedly connected to the middle left side of the mounting frame. A mounting shell is fixedly connected to the front side of the waste gas treatment box, and a fan is installed inside the mounting shell. A filter plate is provided on the left side inside the waste gas treatment box, and an activated carbon plate is provided on the right side outside the filter plate. A connecting pipe is fixedly connected to the left side outside the waste gas treatment box, and the top of the connecting pipe is fixedly connected to the inside of the smelting tank.
[0016] Furthermore, a connecting block is fixedly connected to the outside of the rotating rod, the connecting block is disposed on the upper part of the connecting block, and a scraper is fixedly connected to the outside of the connecting block, the scraper being in contact with the inner wall of the melting tank.
[0017] Furthermore, a feed inlet is fixedly connected to the top right side of the smelting tank, and a sealing cover is installed on the outside of the feed inlet.
[0018] Furthermore, an installation ring is fixedly connected to the top of the melting tank, and the motor is fixedly connected inside the installation ring.
[0019] Furthermore, a heater is installed on the front side of the outside of the smelting tank, and a valve is installed on the outside of the discharge port.
[0020] Furthermore, a guide plate is installed on the right side inside the exhaust gas treatment box, which is used to guide the filtered gas.
[0021] Furthermore, insertion holes are provided on both sides of the exterior of the exhaust gas treatment box, and the filter plate and the activated carbon plate are inserted into the two insertion holes.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, when feeding material, first open the valve, start the motor to drive the rotating rod to rotate, the rotating rod drives the connecting block and scraper to rotate, scraping off the coal tar pitch on the inner wall of the melting tank. At the same time, the auger blades at the bottom of the rotating rod rotate to discharge the coal tar pitch accumulated at the discharge port, preventing the liquid coal tar pitch from solidifying and blocking the channel, and improving the discharge efficiency.
[0024] 2. In this utility model, when smelting coal tar pitch, the raw materials are first poured into the smelting tank through the feed inlet, the heater heats the coal tar pitch, and at the same time the fan is started to draw harmful gases into the waste gas treatment box through the connecting pipe. The gases first pass through the filter plate to filter impurities, then through the activated carbon plate to adsorb harmful substances, and finally through the guide plate to be discharged from the installation shell. This process effectively filters and purifies the smelting waste gas, reduces pollution, and improves the working and surrounding environment. Attached Figure Description
[0025] Figure 1 This is a perspective view of a coal tar pitch recycling and smelting device proposed in this utility model;
[0026] Figure 2 This is a schematic diagram of the internal structure of the smelting tank of a coal tar pitch recycling and smelting device proposed in this utility model;
[0027] Figure 3 This is a schematic diagram of the guide plate structure of a coal tar pitch recycling and smelting device proposed in this utility model;
[0028] Figure 4 This is a schematic diagram of the disassembled filter plate structure of a coal tar pitch recycling and smelting device proposed in this utility model.
[0029] Legend:
[0030] 1. Mounting frame; 2. Mounting plate; 3. Melting tank; 4. Feed inlet; 5. Mounting ring; 6. Motor; 7. Heater; 8. Discharge outlet; 9. Valve; 10. Rotating rod; 11. Connecting block; 12. Scraper; 13. Connecting block; 14. Mounting rod; 15. Stirring rod; 16. Screwdriver blade; 17. Waste gas treatment box; 18. Mounting shell; 19. Fan; 20. Filter plate; 21. Activated carbon plate; 22. Guide plate; 23. Connecting pipe; 24. Insertion hole. Detailed Implementation
[0031] 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.
[0032] Reference Figures 1-3This utility model provides an embodiment of a coal tar pitch recycling and smelting device, comprising: a mounting frame 1; a mounting plate 2, the mounting plate 2 being fixedly connected to the upper part of the mounting frame 1; a smelting tank 3 and a discharge port 8, the smelting tank 3 being fixedly connected to the middle part of the mounting plate 2, and the discharge port 8 being fixedly connected to the bottom of the smelting tank 3; a motor 6, the motor 6 being disposed at the top of the smelting tank 3; a rotating rod 10, the top of the rotating rod 10 being fixedly connected to the output end of the motor 6, and the bottom of the rotating rod 10 being rotatably connected to the interior of the smelting tank 3 and the discharge port 8; a connecting block 13 and a mounting rod 14, the connecting block 13 being fixedly connected to the outer sides of the rotating rod 10, and the mounting rod 14 being fixedly connected to the outer periphery of the connecting block 13; a stirring rod 15 and an auger blade 16, the stirring rod 15 being fixedly connected to the outside of the mounting rod 14, and the auger blade 16 being fixedly connected to the bottom of the rotating rod 10; and a waste gas treatment assembly, the waste gas treatment assembly being used for To handle the gas generated during coal tar smelting, a connecting block 11 is fixedly connected to the outside of the rotating rod 10. The connecting block 11 is located on the upper part of the connecting block 13. A scraper 12 is fixedly connected to the outside of the connecting block 11. The scraper 12 fits against the inner wall of the smelting tank 3. The scraper 12 facilitates the removal of material adhering to the inner wall of the smelting tank 3. A feed inlet 4 is fixedly connected to the top right side of the smelting tank 3. A sealing cover is installed on the outside of the feed inlet 4. The feed inlet 4 facilitates the feeding of coal tar smelting material into the smelting tank 3. An installation ring 5 is fixedly connected to the top of the smelting tank 3. A motor 6 is fixedly connected inside the installation ring 5. The installation ring 5 facilitates the fixing of the motor 6. A heater 7 is installed on the front side of the outside of the smelting tank 3. The heater 7 facilitates the heating operation of the inside of the smelting tank 3. A valve 9 is installed on the outside of the discharge port 8. The valve 9 facilitates the control of the opening and closing operation of the discharge port 8.
[0033] Specifically, during the material feeding operation, valve 9 is first opened, followed by starting motor 6. Motor 6 begins to run, driving the rotating rod 10, which is fixedly connected to its output end, to rotate. The rotation of the rotating rod 10 further drives the connecting block 11, which is externally fixed to it, to rotate as well. This causes the scraper 12 connected to the connecting block 11 to rotate circumferentially on the inner wall of the melting tank 3. The rotation of the scraper 12 serves to remove coal tar residue adhering to the inner wall of the melting tank 3, preventing coal tar from adhering to the wall during the melting process and affecting material flow. At the same time, the bottom of the rotating rod 10... The auger blades 16 are fixed in place. As the rotating rod 10 rotates, the auger blades 16 also begin to rotate synchronously. The rotation of the auger blades 16 can push the coal tar pitch material inside the discharge port 8, continuously conveying it to the discharge port 8 for smooth discharge. Especially when the coal tar pitch is in a liquid state, if it solidifies near the discharge port 8 due to a drop in temperature, it can easily cause blockage of the discharge channel. The continuous rotation of the auger blades 16 avoids such problems. Through the mechanical pushing action, the discharge channel is ensured to be unobstructed, thereby improving the working efficiency of the device in the feeding process.
[0034] Reference Figures 2-4 The exhaust gas treatment assembly includes an exhaust gas treatment box 17, which is fixedly connected to the middle left side of the mounting frame 1. An installation shell 18 is fixedly connected to the front side of the exhaust gas treatment box 17, and a fan 19 is installed inside the installation shell 18. A filter plate 20 is provided on the left side inside the exhaust gas treatment box 17 to facilitate the filtration of impurities in the gas. An activated carbon plate 21 is provided on the right side outside the filter plate 20 to facilitate the filtration of harmful substances in the gas. A connecting pipe 23 is fixedly connected to the left side outside the exhaust gas treatment box 17, and the top of the connecting pipe 23 is fixedly connected to the inside of the melting tank 3. The connecting pipe 23 is used to transport exhaust gas. A guide plate 22 is installed on the right side inside the exhaust gas treatment box 17 to guide the filtered gas. Insertion holes 24 are provided on both sides of the exhaust gas treatment box 17. The filter plate 20 and the activated carbon plate 21 are inserted into the two insertion holes 24 to facilitate the installation and removal of the filter plate 20 and the activated carbon plate 21.
[0035] Specifically, in the process of smelting coal tar pitch, firstly, coal tar pitch is poured into the interior of the smelting tank 3 through the feed inlet 4. At this time, the coal tar pitch inside the smelting tank 3 is heated by the heater 7. During the heating process, the blower 19 is started. The blower 19 draws in the harmful gases generated inside the smelting tank 3 through the connecting pipe 23 and guides them to the exhaust gas treatment box 17. The harmful gases entering the exhaust gas treatment box 17 are first filtered through the filter plate 20, which can remove larger particulate impurities in the gas. Then, the gas continues to pass through the activated carbon plate 21, which has an adsorption effect and can remove harmful substances in the gas, such as volatile organic compounds and other harmful gases, reducing environmental pollution. Finally, the filtered and adsorbed gas is guided by the guide plate 22 into the installation shell 18 and finally discharged outside the treatment box. In this way, the harmful gases generated during the smelting process are treated, ensuring the cleanliness of the emitted gas and reducing pollution to the atmospheric environment. At the same time, the entire treatment process improves the air quality of the working area and the surrounding environment.
[0036] Working principle: During material feeding, firstly, valve 9 is opened, and then motor 6 is started. Motor 6 drives the rotating rod 10 fixed at the output end to rotate. The rotating rod 10 drives the externally fixed connecting block 11 to rotate. The connecting block 11 drives the externally fixed scraper 12 to rotate on the inner wall of the melting tank 3. The rotating scraper 12 scrapes off the coal tar pitch adhering to the inner wall of the melting tank 3. At the same time, the rotating rod 10 drives the auger blade 16 fixed at the bottom to rotate. The rotating auger blade 16 discharges the coal tar pitch accumulated inside the discharge port 8 through the discharge port 8. This achieves the problem of solidification of liquid coal tar pitch near the discharge port 8, which would cause channel blockage, thereby improving the discharge efficiency.
[0037] During the smelting of coal tar pitch, the coal tar pitch is first poured into the smelting tank 3 through the feed inlet 4. Then, the coal tar pitch inside the smelting tank 3 is heated by the heater 7. At the same time, the blower 19 is started, and the harmful gases generated inside the smelting tank 3 are drawn in through the connecting pipe 23 and then transported to the interior of the exhaust gas treatment box 17. The gas entering the exhaust gas treatment box 17 first passes through the filter plate 20 to filter impurities in the harmful gases, and then passes through the activated carbon plate 21 to filter harmful substances in the gases. The filtered gas is then guided by the guide plate 22 and discharged through the interior of the mounting shell 18. This completes the treatment of the gases generated during smelting, making it easy to filter and purify the gases generated during the smelting of coal tar pitch, reducing air pollution and improving the working area and surrounding environment.
[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A coal tar pitch recycling and smelting apparatus, characterized in that, include: Mounting bracket (1); Mounting plate (2), which is fixedly connected to the upper part of the mounting frame (1); A smelting tank (3) and a discharge port (8), wherein the smelting tank (3) is fixedly connected to the middle part of the mounting plate (2), and the discharge port (8) is fixedly connected to the bottom of the smelting tank (3); Motor (6), the motor (6) is located on the top of the smelting tank (3); rotating rod (10), the top of the rotating rod (10) is fixedly connected to the output end of the motor (6), and the bottom of the rotating rod (10) is rotatably connected to the inside of the smelting tank (3) and the discharge port (8); A connecting block (13) and a mounting rod (14) are provided, wherein the connecting block (13) is fixedly connected to the outer sides of the rotating rod (10), and the mounting rod (14) is fixedly connected to the outer periphery of the connecting block (13); A stirring rod (15) and an auger blade (16) are provided, wherein the stirring rod (15) is fixedly connected to the outside of the mounting rod (14), and the auger blade (16) is fixedly connected to the bottom of the rotating rod (10); And an exhaust gas treatment component, which is used to treat the gas generated during coal tar pitch smelting.
2. The recycling melting device for coal pitch according to claim 1, characterized in that: The waste gas treatment assembly includes a waste gas treatment box (17), which is fixedly connected to the middle left side of the mounting frame (1). An installation shell (18) is fixedly connected to the front side of the waste gas treatment box (17). A fan (19) is installed inside the installation shell (18). A filter plate (20) is provided on the left side inside the waste gas treatment box (17). An activated carbon plate (21) is provided on the right side outside the filter plate (20). A connecting pipe (23) is fixedly connected to the left side outside the waste gas treatment box (17). The top of the connecting pipe (23) is fixedly connected to the inside of the smelting tank (3).
3. The recycling melting device for coal pitch according to claim 1, characterized in that: The rotating rod (10) is fixedly connected to a connecting block (11) on the outside. The connecting block (11) is located on the upper part of the connecting block (13). The connecting block (11) is fixedly connected to a scraper (12) on the outside. The scraper (12) is in contact with the inner wall of the melting tank (3).
4. The recycling melting device for coal pitch according to claim 1, characterized in that: The top right side of the smelting tank (3) is fixedly connected to the feed inlet (4), and a sealing cover is installed on the outside of the feed inlet (4).
5. The recycling melting device for coal pitch according to claim 1, characterized in that: The top of the smelting tank (3) is fixedly connected to an installation ring (5), and the motor (6) is fixedly connected inside the installation ring (5).
6. The recycling melting device for coal pitch according to claim 1, characterized in that: A heater (7) is installed on the front side of the outside of the melting tank (3), and a valve (9) is installed on the outside of the discharge port (8).
7. The recycling melting device for coal pitch according to claim 2, characterized in that: A guide plate (22) is installed on the right side inside the exhaust gas treatment box (17), and the guide plate (22) is used to guide the filtered gas.
8. The recycling melting device for coal pitch according to claim 2, characterized in that: The exhaust gas treatment box (17) has insertion holes (24) on both sides of its exterior. The filter plate (20) and the activated carbon plate (21) are inserted into the two insertion holes (24).