Coal-tar oil supply device

Abstract

The application discloses a coal tar supply device, which comprises a coal tar barrel, a heating unit arranged at the bottom of the coal tar barrel, a conveying pipeline in communication with the bottom of the coal tar barrel and provided with a filtering unit, a coal tar pump in communication with the conveying pipeline and capable of pumping the coal tar through the conveying pipeline, and a frame body for supporting the coal tar barrel and provided with a pressing structure capable of extruding the coal tar in the coal tar barrel. The pressing structure comprises a piston plate in the shape of a flat plate and connected with a driving unit capable of driving the piston plate to ascend and descend, and a rubber sealing ring in the shape of a ring and provided with a receiving groove matched with the rubber sealing ring at the bottom edge of the piston plate. The coal tar supply device adopts the heating unit capable of increasing the heat dissipation area, realizes the rapid and uniform heat conduction, and significantly improves the flowability of the coal tar. The coal tar supply device has the functions of precise pressing and sealing and wall scraping, and the residual on the barrel wall is removed through the scraping groove structure, so that the coal tar is pressed and scraped simultaneously.

Description

Technical Field

[0001] This application relates to the field of coal tar pumping technology, and in particular to a coal tar supply device. Background Technology

[0002] Coal tar is a black or brown viscous liquid, also known as coal tar. Its odor is similar to naphthalene or aromatic hydrocarbons. It is mainly a mixture of phenols, aromatic hydrocarbons, and heterocyclic compounds, and is carcinogenic, classified as a Group 1 carcinogen by the IARC. Coal tar is primarily used for fractional distillation to extract various phenols, aromatic hydrocarbons, and alkanes, and can also be used to manufacture other dyes or pharmaceuticals.

[0003] Unheated coal tar has high viscosity, making it difficult to pump directly. It requires high-temperature steam or electric heating, but traditional heating methods are inefficient and prone to coking or energy waste due to localized overheating. Existing equipment often uses open tanks or simple sealed structures, allowing coal tar to remain on the tank walls during transport. This not only wastes raw materials but may also cause solidification of the residue, affecting subsequent operations. Coal tar often contains mechanical impurities or colloidal particles; failure to filter these will negatively impact subsequent production. Summary of the Invention

[0004] The purpose of this application is to provide a coal tar supply device to solve the above problems. It adopts a heating unit that can increase the heat dissipation area, realizes rapid and uniform heat conduction, and significantly improves the fluidity of coal tar. It has precise pressure application and sealing wall scraping functions, and removes residues on the barrel wall through a scraping groove structure, realizing "pressing and scraping at the same time".

[0005] This application achieves the above objectives through the following technical solutions:

[0006] A coal tar supply device includes: a coal tar barrel with an open top and a heating unit installed at the bottom inside; a conveying pipe with one end connected to the bottom of the coal tar barrel and a filter unit installed on the conveying pipe; a coal tar pump connected to the conveying pipe and capable of pumping coal tar through the conveying pipe; a frame for supporting the coal tar barrel and having a pressure structure on the frame capable of squeezing the coal tar inside the coal tar barrel; the pressure structure includes: a piston plate, which is flat and connected to a drive unit capable of driving its lifting and lowering; a rubber sealing ring, which is annular and has a receiving groove on the bottom edge of the piston plate that is adapted to the rubber sealing ring so that the inner ring of the rubber sealing ring can be embedded in the receiving groove; and a pressure plate detachably connected to the bottom of the piston plate so that its edge can press the rubber sealing ring.

[0007] In some embodiments, the heating unit includes a heat sink and a heating wire. The heat sink is composed of two heat-conducting plates, and a groove for the heating wire is provided between the two heat-conducting plates so that the heating wire can be fitted and embedded.

[0008] In some embodiments, the filtration unit includes: a filter cylinder, which is tubular, with a conveying pipe connected to the bottom of the coal tar drum through the filter cylinder, the end of the conveying pipe connected to the outer wall of the filter cylinder, the first end of the filter cylinder connected to the bottom of the coal tar drum, and the second end of the filter cylinder open; a filter screen, with rubber pads at both ends, which can enter and exit through the open end of the second end of the conveying pipe; and a cylinder cover, which is screwed to the filter cylinder and can seal the open end of the second end of the filter cylinder, with a hexagonal post fixedly connected to the cylinder cover.

[0009] In some embodiments, the drive unit includes: a lead screw, which is axially vertical and fixedly connected to a piston plate at its bottom; a screw sleeve, which is screwed to the lead screw; a driven bevel gear, which is fixedly sleeved on the screw sleeve; a bearing housing, which is fixedly connected to the frame to support the rotation of the screw sleeve; a motor, which is fixedly mounted on the top of the frame; and a driving bevel gear, which is fixedly mounted on the output shaft of the motor and meshes with the driven bevel gear.

[0010] In some embodiments, the drive unit further includes: a slide column extending vertically along its length and fixedly connected to a piston plate at its bottom, the slide column passing through the frame and slidingly engaging with the frame on its outer wall; a limit plate fixedly connected to the top of the slide column; and a limit switch mounted on the top of the frame and connected to a motor wire, configured to be pressed by the limit plate to output a signal to reach the maximum stroke and stop the motor.

[0011] In some embodiments, casters are fixedly connected to the bottom of the frame to support the movement of the frame.

[0012] In some embodiments, the pressure plate and the piston plate are detachably connected by fasteners.

[0013] In some embodiments, the rubber sealing ring has multiple grooves around its edge.

[0014] In some embodiments, the bottom of the coal tar drum is conical.

[0015] Compared to existing technologies, this application employs a heating unit that increases the heat dissipation area. By combining a copper heat sink with an embedded heating wire, the high thermal conductivity of copper is utilized to achieve rapid and uniform heat transfer, significantly improving the fluidity of coal tar. It also features precise pressure application and sealing wall scraping functions. The piston plate and rubber sealing ring work together, with a rubber sealing ring embedded in the bottom of the piston plate with multiple scraping grooves. During the descent process, the pressure squeezes the coal tar to improve pumping efficiency, while the scraping groove structure removes residue from the barrel wall, achieving "pressing and scraping simultaneously". Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present application and form part of the specification. They are used together with the following detailed description to explain the present application, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1This is a schematic diagram of the structure of this application;

[0018] Figure 2 This is a schematic diagram of the fastener structure of this application;

[0019] Figure 3 This is a cross-sectional view of the piston plate structure of this application;

[0020] Figure 4 This is a schematic cross-sectional view of the threaded sleeve structure of this application;

[0021] Figure 5 This is a schematic diagram of the internal structure of the coal tar drum in this application;

[0022] Figure 6 This is a schematic diagram of the heat sink structure of this application;

[0023] Figure 7 This is an exploded view of the filter unit structure of this application;

[0024] Figure 8 This is a schematic diagram of the filter structure of this application.

[0025] The annotations in the attached figures are explained as follows:

[0026] 1. Coal tar drum; 3. Conveying pipeline; 4. Coal tar pump; 5. Frame; 6. Casters; 7. Piston plate; 8. Receiving groove; 9. Pressure plate; 10. Rubber sealing ring; 11. Lead screw; 12. Sliding column; 13. Limit plate; 14. Limit switch; 15. Motor; 16. Driving bevel gear; 17. Driven bevel gear; 18. Screw sleeve; 19. Bearing seat; 20. Filter cartridge; 21. Cylinder cover; 22. Hexagonal column; 23. Filter screen; 24. Rubber pad; 25. Heat sink plate; 26. Heating wire; 27. Fasteners. Detailed Implementation

[0027] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0028] In the description of this application, it should be understood that the terms "upper," "lower," "front," "back," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the appendix. Figure 1 This description is provided for the convenience of describing this application and for the purpose of simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0029] like Figure 1-8As shown, a coal tar supply device includes: a coal tar barrel 1 with an open top, which allows for the entry and exit of a piston plate 7 and the addition of coal tar. In some embodiments, the coal tar barrel 1 is a cube or cylinder, and the hollow coal tar barrel 1 can store coal tar. A heating unit is provided at the bottom of the coal tar barrel 1 to heat the coal tar and improve its fluidity; a conveying pipe 3, one end of which is connected to the bottom of the coal tar barrel 1, and a filter unit is provided on the conveying pipe 3. The other end of the conveying pipe 3 can be connected to a coal tar receiving device through a flange to smoothly convey coal tar; a coal tar pump 4, which is connected to the conveying pipe 3 and can pump coal tar through the conveying pipe 3. The coal tar pump 4 is prior art and can pump and convey heated coal tar; and a frame 5 for supporting the coal tar barrel 1. The frame 5 has a support structure, and the coal tar barrel 1 is located in the middle of the frame 5. The frame 5 is provided with a pressure structure that can squeeze the coal tar in the coal tar barrel 1, and the frame 5 can provide support for the pressure structure.

[0030] refer to Figure 2-3 The pressure-applying structure includes: a piston plate 7, which is flat and connected to a drive unit that can drive it to rise and fall; a rubber sealing ring 10, which is annular, and the bottom edge of the piston plate 7 is provided with a receiving groove 8 that is adapted to the rubber sealing ring 10 so that the inner ring of the rubber sealing ring 10 can be embedded in the receiving groove 8; and a pressure plate 9, which is detachably connected to the bottom of the piston plate 7 so that its edge can press the rubber sealing ring 10. In this embodiment, the piston plate 7 and the rubber sealing ring 10 can squeeze the coal tar when descending, thereby improving the pumping effect. At the same time, the rubber sealing ring 10 can contact the inner wall of the coal tar barrel 1 to scrape off residual coal tar and increase the sealing performance. Through the pressing of the pressure plate 9 and the fact that the rubber sealing ring 10 is in the receiving groove 8, the rubber sealing ring 10 is prevented from falling off. The rubber sealing ring 10 can also be removed by disassembling the pressure plate 9, which is convenient for maintenance.

[0031] refer to Figure 6 In some embodiments, the heating unit includes a heat sink 25 and a heating wire 26. The heat sink 25 is composed of two heat-conducting plates, and a groove for the heating wire 26 is provided between the two heat-conducting plates so that the heating wire 26 can be fitted and embedded. In some embodiments, the heat sink 25 is made of copper, which has good thermal conductivity. The heating wire 26 embedded in the groove on the heat sink 25 generates heat and conducts it to the heat sink 25. The heat sink 25 increases the heat conduction area to improve the efficiency of heating coal tar.

[0032] refer to Figure 7-8In some embodiments, the filtration unit includes: a filter cylinder 20, which is tubular and capable of housing a filter screen 23; a conveying pipe 3, which is connected to the bottom of the coal tar drum 1 through the filter cylinder 20; the end of the conveying pipe 3 is connected to the outer wall of the filter cylinder 20; the first end of the filter cylinder 20 is connected to the bottom of the coal tar drum 1 so that the coal tar can be filtered by the filter screen 23 before entering the conveying pipe 3; and the second end of the filter cylinder 20 is open; the filter screen 23 has rubber pads 24 at both ends, which are fixed to both ends of the filter screen 23 and can fit against the filter cylinder 20 and the cylinder cover 21 to achieve a seal, so that the coal tar can pass through the filter screen 23 and prevent... The filter screen 23 passes through the gap and can enter and exit through the opening at the second end of the conveying pipe 3. The filter screen 23 is cylindrical, and the diameter of the filter screen 23 is smaller than the inner wall diameter of the filter cylinder 20 to increase the gap between the two and provide space for the flow of coal tar. The cylinder cover 21 is screwed to the filter cylinder 20 and can seal the opening at the second end of the filter cylinder 20. In this embodiment, the inner wall of the cylinder cover 21 and the outer wall of the second end of the filter cylinder 20 have matching internal and external threads to achieve detachable connection and ensure sealing. A hexagonal post 22 is fixedly connected to the cylinder cover 21, which is convenient to screw the hexagonal post 22 with a tool, and then screw the cylinder cover 21.

[0033] In some embodiments, the drive unit includes: a lead screw 11, which is axially vertical and fixedly connected to the piston plate 7 at its bottom; a threaded sleeve 18, which is screwed to the lead screw 11 and can drive the lead screw 11 to rise and fall through the thread when rotating forward or in reverse; a driven bevel gear 17, which is fixedly sleeved on the threaded sleeve 18 so as to synchronously drive the threaded sleeve 18 to rotate; a bearing seat 19, which is fixedly connected to the frame 5 to support the rotation of the threaded sleeve 18. The bearing seat 19 in this embodiment is prior art and can support the axially vertical threaded sleeve 18; a motor 15, which is fixedly installed on the top of the frame 5 to provide power; and a driving bevel gear 16, which is fixedly installed on the output shaft of the motor 15 and meshes with the driven bevel gear 17, and can mesh to drive the driven bevel gear 17 to rotate and transmit power, thereby driving the threaded sleeve 18 to rotate.

[0034] In some embodiments, the drive unit further includes: a slide column 12, which extends vertically along its length and is fixedly connected to the piston plate 7 at its bottom. The slide column 12 passes through the frame 5 and its outer wall slides in cooperation with the frame 5. When the piston plate 7 is raised or lowered, the slide column 12 follows the rise and fall and slides in cooperation with the frame 5, thereby further maintaining the stability of the rise and fall of the piston plate 7; a limit plate 13, which is fixedly connected to the top of the slide column 12; and a limit switch 14, which is installed on the top of the frame 5 and connected to the motor 15 wire. The limit switch 14 is configured to be pressed by the limit plate 13, thereby outputting a signal to stop the motor 15 when it reaches the maximum stroke. After the limit plate 13, which follows the rise and fall of the slide column 12, descends to the maximum stroke, it can contact and press the limit switch 14, causing the limit switch 14 to send a current signal, further controlling the motor 15 to stop running and avoiding collision damage.

[0035] In some embodiments, the bottom of the frame 5 is fixedly connected with casters 6, which can support the movement of the frame 5 to facilitate the transfer of the device.

[0036] In some embodiments, the pressure plate 9 and the piston plate 7 are detachably connected by fasteners 27. In some embodiments, the fasteners 27 are bolts, which can be installed and removed by screwing them onto the piston plate 7.

[0037] refer to Figure 2 In some embodiments, the rubber sealing ring 10 is provided with multiple scraping grooves around its edge, which can make the rubber sealing ring 10 form a multi-layer structure around its perimeter, thereby increasing the sealing performance and the scraping effect.

[0038] refer to Figure 7 In some embodiments, the bottom of the coal tar container 1 is conical, which allows the coal tar to flow towards the center of the bottom of the coal tar container 1, thereby reducing coal tar residue.

[0039] In the above structure, when coal tar needs to be supplied, the heating wire 26 is energized to generate heat. The heat is conducted through the heat dissipation plate 25 to increase the heating area, thereby heating the coal tar and improving its fluidity. The motor 15 is energized to drive the active bevel gear 16 to rotate. The active bevel gear 16 meshes with the driven bevel gear 17 to rotate, which in turn rotates the screw sleeve 18. The screw sleeve 18 meshes with the lead screw 11 to drive the piston plate 7 to descend. Through the compression of the piston plate 7, the coal tar is transported through the conveying pipe 3. The coal tar pump 4 is energized to pump the coal tar. The supply efficiency is improved through compression and pumping. The rubber sealing ring 10 can scrape off the residual coal tar on the inner wall of the coal tar barrel 1 to reduce residue. When coal tar needs to be stored in the coal tar barrel 1, the heating wire 26 is energized to reverse and drive the piston plate 7 to rise and detach from the coal tar barrel 1. The opening at the top of the coal tar barrel 1 opens to facilitate the delivery of coal tar into the coal tar barrel 1.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this application. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this application. Various changes and modifications can be made to this application without departing from the spirit and scope thereof, and all such changes and modifications fall within the scope of this application as claimed. The scope of protection of this application is defined by the appended claims and their equivalents.

Claims

1. A coal tar supply device, characterized in that, include: A coal tar barrel (1) with an open top and a heating unit installed at the bottom inside the coal tar barrel (1); a conveying pipe (3) with one end connected to the bottom of the coal tar barrel (1) and a filter unit installed on the conveying pipe (3); a coal tar pump (4) connected to the conveying pipe (3) and capable of pumping coal tar through the conveying pipe (3); a frame (5) for providing support for the coal tar barrel (1) and a pressure structure installed on the frame (5) capable of squeezing the coal tar inside the coal tar barrel (1); The pressure-applying structure includes: a piston plate (7), which is flat in shape and connected to a drive unit that can drive it to rise and fall; The rubber sealing ring (10) is annular, and the bottom edge of the piston plate (7) is provided with a receiving groove (8) that is adapted to the rubber sealing ring (10) so that the inner ring of the rubber sealing ring (10) can be embedded in the receiving groove (8); the pressure plate (9) is detachably connected to the bottom of the piston plate (7) so that its edge can press the rubber sealing ring (10).

2. The coal tar supply device according to claim 1, characterized in that: The heating unit includes a heat sink (25) and a heating wire (26). The heat sink (25) is composed of two heat-conducting plates, and a groove for the heating wire (26) is provided between the two heat-conducting plates so that the heating wire (26) can fit and be embedded.

3. The coal tar supply device according to claim 2, characterized in that: The filter unit includes: a filter cylinder (20), which is tubular, with a conveying pipe (3) connected to the bottom of the coal tar barrel (1) through the filter cylinder (20), the end of the conveying pipe (3) connected to the outer wall of the filter cylinder (20), the first end of the filter cylinder (20) connected to the bottom of the coal tar barrel (1), and the second end of the filter cylinder (20) open; a filter screen (23), with rubber pads (24) at both ends, and the filter screen (23) can enter and exit through the opening at the second end of the conveying pipe (3); a cylinder cover (21), which is screwed to the filter cylinder (20) and can seal the opening at the second end of the filter cylinder (20), and a hexagonal post (22) is fixedly connected to the cylinder cover (21).

4. The coal tar supply device according to claim 3, characterized in that: The drive unit includes: a lead screw (11), which is vertical in the axial direction and fixedly connected to the piston plate (7) at its bottom; a screw sleeve (18), which is screwed to the lead screw (11); a driven bevel gear (17), which is fixedly sleeved on the screw sleeve (18); a bearing seat (19), which is fixedly connected to the frame (5) to support the rotation of the screw sleeve (18); a motor (15), which is fixedly installed on the top of the frame (5); and a driving bevel gear (16), which is fixedly installed on the output shaft of the motor (15) and meshes with the driven bevel gear (17).

5. A coal tar supply device according to claim 4, characterized in that: The drive unit also includes: a slide column (12) extending vertically along its length and fixedly connected to the piston plate (7) at its bottom, the slide column (12) passing through the frame (5) and slidingly engaging with the frame (5) on its outer wall; a limit plate (13) fixedly connected to the top of the slide column (12); and a limit switch (14) installed on the top of the frame (5) and connected to the motor (15) wires, configured to be pressed by the limit plate (13) to output a signal to reach the maximum stroke and stop the motor (15).

6. The coal tar supply device according to claim 1, characterized in that: The bottom of the frame (5) is fixedly connected with casters (6) which can support the movement of the frame (5).

7. A coal tar supply device according to claim 1, characterized in that: The pressure plate (9) and the piston plate (7) are detachably connected by fasteners (27).

8. A coal tar supply device according to claim 1, characterized in that: Multiple grooves are provided around the edge of the rubber sealing ring (10).

9. A coal tar supply device according to any one of claims 1-8, characterized in that: The bottom of the coal tar drum (1) is conical.

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