A purification device for carbon tar liquor

Abstract

This invention discloses a purification device for carbon tar raw liquid, relating to the field of chemical equipment technology. It includes a spiral separator, a condenser heat exchanger, and a buffer tank connected in sequence. The spiral separator comprises a tank body and a heating chamber. An exhaust pipe connected to the condenser heat exchanger is provided on one side of the top of the tank body. A liquid inlet pipe is provided on the side wall of the tank body, and a residue discharge pipe is provided on the side of the tank body away from the liquid inlet pipe. A spiral scraping mechanism is provided inside the tank body for scraping tar off the inner wall of the tank. The spiral scraping mechanism includes a rotating shaft, spiral blades, multiple support rods, and a drive mechanism for driving the rotating shaft to rotate. This invention, through the spiral scraping mechanism, can not only effectively scrape off the tar adhering to the inner wall of the tank, preventing tar accumulation that would affect the purification effect, but its special spiral structure can also slowly stir the liquid inside the tank, making the liquid heated more evenly and further improving the efficiency and purity of steam generation.

Description

Technical Field

[0001] This invention relates to the field of chemical equipment technology, specifically to a purification device for carbon tar raw materials. Background Technology

[0002] Carbon tar, a byproduct of carbon material production, contains solid substances such as coal tar, sulfur, nitrogen, and ammonia, as well as harmful components such as polycyclic aromatic hydrocarbons. Direct discharge or simple treatment will pose environmental risks and affect the on-site environment.

[0003] Traditional carbon tar concentrate purification equipment typically operates at atmospheric or high pressure, while water has a high boiling point (above 100°C). To achieve rapid dehydration, heating temperatures are often far above the boiling point. High temperatures irreversibly destroy many heat-sensitive substances; furthermore, carbon tar readily undergoes condensation reactions at high temperatures, generating difficult-to-handle high-viscosity materials (quinoline insolubles (QI) and coke). These high-viscosity materials have poor flowability, easily scale and coke on the heating walls, affecting heat transfer efficiency and even clogging the equipment. Summary of the Invention

[0004] The purpose of this invention is to provide a purification apparatus for carbon tar crude oil to solve the above-mentioned problems.

[0005] To solve the above-mentioned technical problems, the present invention specifically provides the following technical solution:

[0006] A purification device for carbon tar raw liquid includes a spiral separator, a condenser heat exchanger, and a buffer tank connected in sequence. The spiral separator includes a tank body and a heating chamber. Inside the tank body is a spiral scraping mechanism for scraping tar off the inner wall of the tank. The spiral scraping mechanism includes a rotating shaft, spiral blades, multiple support rods, a drive mechanism for driving the rotating shaft, and a cleaning assembly for cleaning the spiral blades. The rotating shaft is rotatably disposed inside the tank body. Multiple support rods are fixedly and alternately arranged along the outer wall of the rotating shaft. A slot is provided on the side of each support rod away from the rotating shaft. The spiral blades are sleeved on the outside of the rotating shaft, and multiple connecting pieces are uniformly fixed along the spiral direction on the inner edge of the spiral blades. Each connecting piece is correspondingly and fixedly inserted into a slot. The outer periphery of the spiral blades abuts against the inner wall of the tank. The drive mechanism is installed on one side of the outer wall of the tank and is coaxially fixed with the rotating shaft. The cleaning assembly is installed on the top of the tank body and abuts against the spiral blades.

[0007] As a preferred embodiment of the present invention, an exhaust pipe connected to a condenser heat exchanger is provided on one side of the top of the tank, a liquid inlet pipe is provided on the side wall of the tank, and a residue discharge pipe is provided on the side of the tank away from the liquid inlet pipe.

[0008] As a preferred embodiment of the present invention, the cleaning assembly includes a housing, a partition plate, a limiting rotating rod, two mutually adsorbing cleaning scrapers, and two control components for controlling the separation of the two cleaning scrapers. The housing is fixed to the top of the tank, and the top of the tank has a sliding groove communicating with the housing. The partition plate is horizontally fixed inside the housing and divides the inside of the housing into a storage cavity and a movable cavity. The limiting rotating rod is rotatably disposed inside the movable cavity, and both ends of the limiting rotating rod pass through both sides of the housing and extend to the outside of the housing. Both cleaning scrapers are movably sleeved on the limiting rotating rod. A cavity is formed inside the limiting rotating rod, and guide grooves communicating with the cavity are formed on both sides of the outer wall of the limiting rotating rod. Two circular plates are slidably connected inside the cavity. Guide sliders are fixedly connected to both sides of the two cleaning scrapers. The two circular plates are fixedly connected to their corresponding two guide sliders. The two control components are respectively disposed on both sides inside the cavity and fixedly connected to the opposite side of the two circular plates.

[0009] In operation, the two cleaning scrapers are magnetically attracted to each other and clamped on both sides of the spiral blade.

[0010] As a preferred embodiment of the present invention, the cleaning scraper includes an annular plate, a scraper blade and a magnetic ring. The annular plate is sleeved on the limiting rotating rod, the scraper blade is fixed to the outer wall of the annular plate, and the length of the scraper blade is equal to the width of the spiral blade. A groove is provided on one side of each of the two cleaning scrapers, and the magnetic ring is embedded in the groove.

[0011] Both of the two scrapers have magnetic force on opposite sides.

[0012] As a preferred embodiment of the present invention, the two scrapers are arranged opposite to each other and parallel, and abut against the outer wall of the spiral blade they hold.

[0013] In a preferred embodiment of the present invention, the control assembly includes two spring pressure plates, two buffer springs, and two connecting ropes. Two sealing heads are respectively inserted at both ends of the limiting rotating rod. The two spring pressure plates are respectively disposed in the cavity on opposite sides of the two circular plates. The two buffer springs are respectively disposed between the circular plate and the spring pressure plates, and both ends of the buffer springs are fixedly connected to the circular plate and the spring pressure plates, respectively. One end of each of the two connecting ropes is fixed on opposite sides of the two circular plates, and the two connecting ropes pass through the buffer springs and the spring pressure plates in sequence and extend to one side of the two sealing heads, and are fixedly connected to the two sealing heads, respectively.

[0014] As a preferred embodiment of the present invention, a plurality of spray nozzles are uniformly arranged along the length of one side of the bottom of the partition plate, and the output ends of all the spray nozzles are inclined and face the cleaning component.

[0015] As a preferred embodiment of the present invention, the heating chamber is a concave square groove, the tank is horizontally arranged on the top of the heating chamber and fixedly connected to the heating chamber, and an air inlet pipe and an air outlet pipe are respectively arranged on both sides of the heating chamber.

[0016] In a preferred embodiment of the present invention, the driving mechanism includes a motor and a reducer. The motor is mounted on one side of the outer wall of the tank, and the reducer is connected to the output shaft of the motor. The output shaft of the reducer is coaxially fixed with the rotating shaft.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] 1. This invention, through the design of a spiral scraping mechanism, not only effectively scrapes away tar adhering to the inner wall of the tank, preventing tar accumulation that could affect the purification effect, but also its special spiral structure provides a slow stirring effect on the liquid inside the tank, resulting in more uniform heating and further improving the efficiency and purity of steam generation. Furthermore, as the rotating shaft drives the spiral blades to rotate, it gradually pushes the raw liquid input through the liquid inlet pipe to the residue outlet pipe. However, due to the large gap between the inner edge of the spiral blades and the rotating shaft, the raw liquid at the upper end enters along this gap and flows towards the middle of the tank during the pushing process, avoiding excessive compression and damage to the raw liquid and ensuring the integrity of the effective components in the raw liquid.

[0019] 2. This invention, through the design of the cleaning components, enables the scraper to effectively remove the raw liquid adhering to the outer wall of the spiral blades, preventing tar from adhering to the spiral blades and affecting the purification effect of the carbon tar raw liquid. Furthermore, with the cooperation of multiple nozzles, the water jets from the nozzles can comprehensively cover all parts of the spiral scraping mechanism, thoroughly washing away the residual carbon tar raw liquid on the spiral blades and impurities such as debris generated during the cleaning process. This achieves comprehensive cleaning of all parts of the spiral scraping mechanism, more effectively removing residual raw liquid and impurities from the spiral blades and support rods, ensuring the cleanliness of the spiral scraping mechanism, and providing favorable conditions for subsequent raw liquid purification. Attached Figure Description

[0020] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0021] Figure 1 This invention provides a schematic diagram of the overall structure of a purification device for carbon tar crude oil.

[0022] Figure 2 This invention provides a schematic diagram of the structure of a spiral separator;

[0023] Figure 3 This invention provides a front structural cross-sectional view of a spiral separator;

[0024] Figure 4 Provided for the present invention Figure 3 Enlarged view of the structure at point A;

[0025] Figure 5 A side view of the spiral separator is provided for the present invention.

[0026] Figure 6 Provided for the present invention Figure 5 Enlarged view of the structure at point B;

[0027] Figure 7 A partial structural schematic diagram of the helical blade is provided for the present invention;

[0028] Figure 8 A schematic diagram of the cleaning component is provided for this invention.

[0029] The labels in the diagram represent the following:

[0030] 1. Spiral separator; 2. Condensation heat exchanger; 3. Buffer tank; 4. Tank body; 5. Heating chamber; 6. Spiral scraping mechanism; 7. Cleaning assembly;

[0031] 11. Exhaust pipe; 12. Liquid inlet pipe; 13. Residue discharge pipe; 14. Slide groove; 61. Rotating shaft; 62. Spiral blade; 63. Support rod; 64. Drive mechanism; 65. Connecting plate; 66. Housing; 67. Divider plate; 68. Limiting rod; 69. Cleaning scraper; 70. Control assembly; 71. Storage chamber; 72. Movable chamber; 73. Cavity; 74. Guide groove; 75. Circular plate; 76. Guide slider; 77. Annular plate; 78. Scraper; 79. Magnetic ring; 80. Groove; 81. Spring plate; 82. Buffer spring; 83. Connecting rope; 84. Sealing head; 85. Nozzle. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] like Figure 1 - Figure 8As shown, the present invention provides a purification device for carbon tar crude liquid, comprising a spiral separator 1, a condenser heat exchanger 2, and a buffer tank 3 connected in sequence. The spiral separator 1 includes a tank body 4 and a heating chamber 5. A spiral scraping mechanism 6 is provided inside the tank body 4 for scraping tar off the inner wall of the tank body 4. The spiral scraping mechanism 6 includes a rotating shaft 61, spiral blades 62, multiple support rods 63, a drive mechanism 64 for driving the rotating shaft 61 to rotate, and a cleaning assembly 7 for cleaning the spiral blades 62. The rotating shaft 61 is rotatably disposed inside the tank body 4. Multiple support rods 63 are fixedly and alternately arranged along the outer wall of the rotating shaft 61. Each support rod 63 has a slot on the side away from the rotating shaft 61. The spiral blade 62 is sleeved on the outside of the rotating shaft 61, and multiple connecting pieces 65 are evenly fixed on the inner edge of the spiral blade 62 along the spiral direction. The multiple connecting pieces 65 are fixedly inserted into the slots one by one. The outer periphery of the spiral blade 62 abuts against the inner wall of the tank 4. The drive mechanism 64 is installed on one side of the outer wall of the tank 4 and is fixed coaxially with the rotating shaft 61. The cleaning component 7 is installed on the top of the tank 4 and abuts against the spiral blade 62.

[0034] A vent pipe 11 connected to the condenser heat exchanger 2 is provided on one side of the top of the tank body 4. A liquid inlet pipe 12 is provided on the side wall of the tank body 4. A residue discharge pipe 13 is provided on the side of the tank body 4 away from the liquid inlet pipe 12.

[0035] The drive mechanism 64 includes a motor and a reducer. The motor is installed on one side of the outer wall of the tank 4, and the reducer is connected to the output shaft of the motor. The output shaft of the reducer is coaxially fixed with the rotating shaft 61.

[0036] In this embodiment, the carbon tar concentrate is injected into the tank 4 through the liquid inlet pipe 12. Simultaneously, the bottom of the tank 4 is heated by the heating chamber 5, allowing the concentrate to be processed at a low temperature close to room temperature. This avoids irreversible damage to heat-sensitive substances in the carbon tar concentrate caused by high-temperature heating. Furthermore, since the carbon tar concentrate is a high-viscosity material with poor fluidity, it is prone to scaling and coking on the heated wall. Therefore, in this embodiment, a spiral scraping mechanism 6 is installed inside the tank 4. By starting the motor, the motor drives the rotating shaft 61 to rotate through the reducer. The rotation of the rotating shaft 61 causes the spiral scraping mechanism 6 to rotate inside the tank 4. During the rotation, the spiral blades 62 scrape off the tar adhering to the inner wall of the tank 4, effectively preventing the material from sticking to the wall, coking, and scaling. Furthermore, during the heating process of the raw liquid, the raw liquid in the tank 4 is heated to generate steam. The steam enters the condenser heat exchanger 2 through the exhaust pipe 11 for condensation treatment. The condensed liquid flows into the buffer tank 3 for storage, while the residue separated in the tank 4 is discharged through the residue discharge pipe 13, thereby achieving the purification of carbon tar raw liquid.

[0037] It is worth noting that during the purification process, the interiors of tank 4, condenser heat exchanger 2, and buffer tank 3 are all under negative pressure. According to the temperature-pressure formula, when the liquid volume remains constant, the lower the pressure, the lower the boiling point of the liquid. Based on this principle, by reducing the internal pressure of the equipment (tank 4, condenser heat exchanger 2, and buffer tank 3), the vacuum level is increased, lowering the liquid boiling point and thus improving tar separation efficiency. Reducing the pressure in tank 4 allows substances with high boiling points at atmospheric pressure, which are prone to decomposition or polymerization, to vaporize and separate at lower temperatures. During operation, the vacuum level is maintained between -90 and -96 kPa, ensuring a high heat transfer temperature difference within tank 4 while reducing foaming and organic entrainment.

[0038] Specifically, as shown in Table 1, the boiling point data of water under different vacuum levels show that the boiling point of water decreases significantly as the vacuum level increases. When the vacuum level inside tank 4 is between -90 and -96 kPa, the boiling point of water is around 45℃. In actual operation, the heating temperature will fluctuate within this range. Furthermore, the influence of external environmental factors on the temperature inside tank 4 needs to be considered. For example, in high-temperature environments in summer, tank 4 dissipates heat slowly, which may easily lead to overheating; while in cold winter environments, more heat input may be needed to maintain the temperature inside tank 4. Therefore, the heating temperature needs to be adjusted appropriately according to different seasons and ambient temperature conditions. Furthermore, to ensure the stability and continuity of the purification effect, pressure and temperature sensors need to be installed to monitor and adjust the operating parameters of the equipment in real time, keeping the temperature within a suitable range.

[0039] Table 1: Relationship between boiling point of water and vacuum degree

[0040]

[0041] During the rotation of the spiral blades 62, not only can the tar adhering to the inner wall of the tank 4 be effectively scraped off, preventing tar accumulation that would affect the purification effect, but its special spiral structure also provides a slow stirring effect on the liquid inside the tank 4, making the liquid heat more evenly and further improving the efficiency and purity of steam generation. When the rotating shaft 61 drives the spiral blades 62 to rotate, the raw liquid input from the liquid inlet pipe 12 in the tank 4 is gradually pushed to the residue outlet pipe 13. However, due to the large gap between the inner edge of the spiral blades 62 and the rotating shaft 61, the raw liquid at the upper end enters along this gap and flows towards the middle of the tank 4 during the pushing process, avoiding excessive compression and damage to the raw liquid and ensuring the integrity of the effective components in the raw liquid. This design achieves both the delivery of the raw liquid and avoids component loss due to excessive stirring or compression, ensuring the quality of the purified carbon tar.

[0042] Furthermore, the design of the support rods 63 and connecting plates 65 in the spiral scraping mechanism 6 enhances the structural strength of the spiral blades 62, making them less prone to deformation or damage during long-term high-speed rotation, thus ensuring the long-term stable operation of the purification unit. The spiral scraping mechanism 6, through the fixing method of multiple support rods 63 and connecting plates 65, makes the spiral blades 62 more stable and reliable during rotation, less prone to loosening or deformation, thereby extending the service life of the entire purification unit.

[0043] Furthermore, the cleaning assembly 7 includes a housing 66, a partition plate 67, a limiting rotating rod 68, two mutually adsorbing cleaning scrapers 69, and two control assemblies 70 for controlling the separation of the two cleaning scrapers 69. The housing 66 is fixed to the top of the tank 4, and the top of the tank 4 has a groove 14 communicating with the housing 66. The partition plate 67 is horizontally fixed inside the housing 66, dividing the interior of the housing 66 into a storage cavity 71 and a movable cavity 72. The limiting rotating rod 68 is rotatably disposed inside the movable cavity 72, and both ends of the limiting rotating rod 68 pass through both sides of the housing 66 and extend... Outside the housing 66, two cleaning scrapers 69 are movably mounted on a limiting rotating rod 68. A cavity 73 is provided inside the limiting rotating rod 68, and guide grooves 74 communicating with the cavity 73 are provided on both sides of the outer wall of the limiting rotating rod 68. Two circular plates 75 are slidably connected inside the cavity 73. Guide sliders 76 are fixedly connected to both sides of the two cleaning scrapers 69. The two circular plates 75 are fixedly connected to their corresponding two guide sliders 76. Two control components 70 are respectively located on both sides inside the cavity 73 and are fixedly connected to the opposite side of the two circular plates 75.

[0044] In operation, the two cleaning scrapers 69 are magnetically attracted to each other and clamped on both sides of the spiral blade 62.

[0045] The cleaning scraper 69 includes an annular plate 77, a scraper blade 78, and a magnetic ring 79. The annular plate 77 is sleeved on the limiting rotating rod 68, the scraper blade 78 is fixed on the outer wall of the annular plate 77, and the length of the scraper blade 78 is equal to the width of the spiral blade 62. A groove 80 is provided on the opposite side of the two cleaning scrapers 69, and the magnetic ring 79 is embedded in the groove 80.

[0046] Both of the two scrapers 78 have magnetic force on opposite sides.

[0047] Cleaning scrapers 69 are provided on both sides of the outer wall of the spiral blade 62. Grooves 80 are provided on opposite sides of the annular plates 77 of the two cleaning scrapers 69, and magnetic rings 79 are embedded in the grooves 80. When the two annular plates 77 are close together, they are magnetically attracted and fixed, forming a stable clamping structure. This clamps the two scrapers 78 against the spiral blade 62. When the spiral blade 62 moves spirally circumferentially within the tank 4, it can scrape away the raw liquid from the inner wall of the tank 4. Simultaneously, driven by the spiral blade 62, the two scrapers 78, clamped on the spiral blade 62, move horizontally along the chute 14. During the purification process, the rotating shaft 61 reciprocates, and its cycle is equal to the length of the chute 14. This allows for comprehensive cleaning of the spiral blade 62. This design not only improves the cleaning effect and prevents tar from adhering to the spiral blade 62 and accumulating, thus affecting the purification effect of the carbon tar raw liquid, but also extends the service life of the spiral blade 62, ensuring the stable operation of the carbon tar raw liquid purification device. Furthermore, the reciprocating rotation can change the flow state of the material around the spiral blades 62, making the mixing of the raw liquid in the tank 4 more uniform. This helps to improve the heating efficiency and treatment effect of the carbon tar raw liquid, allowing the carbon tar raw liquid to be purified more fully in a low-temperature treatment environment close to room temperature, thereby improving the working performance and purification quality of the entire carbon tar raw liquid purification device.

[0048] Furthermore, the two scrapers 78 are arranged opposite to each other and parallel to each other, and abut against the outer wall of the spiral blade 62 they hold. The two scrapers 78 are arranged to fit along the shape of the spiral blade 62, so that the two scrapers 78 always maintain a tight fit with the outer wall of the spiral blade 62, ensuring that the original liquid residue adhering to its surface can be continuously and effectively scraped off during the rotation of the spiral blade 62.

[0049] After the raw liquid is processed, the remaining tar residue needs to be discharged. By rotating the limiting rod 68 to 90 degrees, the two annular plates 77 are rotated, causing the two scrapers 78 to rotate and disengage from the spiral blades 62. Subsequently, the rotating shaft 61 drives the spiral blades 62 to rotate clockwise, thereby gradually pushing the residue inside the tank 4 to the residue discharge port. During the discharge process, since the two scrapers 78 have disengaged from the spiral blades 62, they do not obstruct the rotation of the spiral blades 62, allowing the spiral blades 62 to push the residue out more smoothly. Moreover, this design eliminates the need for complex disassembly of the cleaning component 7 when discharging residue; simply rotating the limiting rod 68 is sufficient to separate the scrapers 78 from the spiral blades 62, greatly simplifying the operation process and improving work efficiency.

[0050] The two scrapers 78 each have a magnetic force on opposite sides. The two annular plates 77 are separated by a control assembly 70, which includes two spring plates 81, two buffer springs 82, and two connecting ropes 83. Two sealing heads 84 are inserted into both ends of the limiting rod 68. The two spring plates 81 are respectively located in the cavity 73 on opposite sides of the two circular plates 75. The two buffer springs 82 are respectively located between the circular plate 75 and the spring plates 81, and both ends of the buffer springs 82 are fixedly connected to the circular plate 75 and the spring plates 81, respectively. One end of each of the two connecting ropes 83 is fixed to the opposite side of the two circular plates 75, and the two connecting ropes 83 pass through the buffer springs 82 and the spring plates 81 in sequence and extend to one side of the two sealing heads 84, and are fixedly connected to the two sealing heads 84, respectively.

[0051] After the residue is discharged, the workers pull out the two sealing heads 84 and pull them out in opposite directions, thereby stretching the connecting rope 83 outward from the cavity 73. Since the connecting rope 83 is fixedly connected to the circular plate 75, as the connecting rope 83 is pulled out, it will drive the circular plate 75 to move in opposite directions against the magnetic force of the magnetic ring, thus causing the two annular plates 77 to separate. After the two annular plates 77 are separated to a certain distance (a distance that can accommodate one or two sections of the spiral blade 62), the limiting rod 68 is rotated in the opposite direction to 90 degrees, thereby rotating and resetting the two scrapers 78 to the outside of the spiral blade 62. Then, one of them is... The connecting rope 83 is released, allowing the scraper 78 to adhere to the spiral blade 62. Then, the other connecting rope 83 is released, and the other scraper 78 adheres to the other side of the spiral blade 62, re-clamping and fixing the spiral blade 62. To better visualize the clamping process, a transparent viewing window can be opened on the side wall of the housing 66 to better observe and judge the distance between the two scrapers 78 and the spiral blade 62. After the two scrapers 78 are re-clamped to the spiral blade 62, the rotation state of the rotating shaft 61 changes to reciprocating motion. At this time, the tank 4 and the spiral scraping mechanism 6 can be cleaned or subjected to negative pressure operation again before continuing the purification work.

[0052] The control component 70 can precisely control the movement of the two circular plates 75, thereby accurately controlling the separation and resetting of the two cleaning scrapers 69, making the operation of the entire cleaning component 7 more precise and stable, and ensuring that the cleaning scrapers 69 can maintain good working performance under various working conditions.

[0053] Multiple sets of nozzles 85 are evenly arranged along the length of one side of the bottom of the partition plate 67, and the output ends of all nozzles 85 are inclined and facing the cleaning component 7. When cleaning of the tank 4 and the spiral scraper mechanism 6 is required, the external water supply system is activated, and water is transported through pipes to the storage chamber 71 and sprayed onto the cleaning component 7 through the multiple sets of nozzles 85 at the bottom of the partition plate 67. Since the output ends of the nozzles 85 are inclined and facing the cleaning component 7, the water flow will spray onto the cleaning component 7 at an inclined angle to powerfully wash away the impurities attached to the cleaning component 7. At the same time, the rotating shaft 61 drives the spiral scraper mechanism 6 to reciprocate, so that the water flow sprayed by the nozzles 85 can fully cover all parts of the spiral scraper mechanism 6, thoroughly washing away the carbon tar residue on the spiral blades 62 and the debris and other impurities generated during the cleaning process. The washed wastewater will be discharged outside the tank 4 through the residue discharge pipe 13 set at the bottom of the tank 4, thereby completing the cleaning work of the tank 4 and the spiral scraper mechanism 6.

[0054] In this embodiment, the cleaning medium can be high-temperature steam, cleaning liquid, hot water, etc., which can be selected according to specific usage requirements to ensure the cleanliness of the spiral scraping mechanism 6, provide good conditions for subsequent raw material purification work, and ensure the normal operation and efficient purification of the entire carbon tar raw material purification device.

[0055] The heating chamber 5 is a concave square groove. The tank body 4 is horizontally set on the top of the heating chamber 5 and is fixedly connected to the heating chamber 5. An air inlet pipe and an air outlet pipe are respectively set on both sides of the heating chamber 5.

[0056] The inlet pipe is used to introduce heated gas or liquid into the heating chamber 5 to provide heat for the boiling of carbon tar raw liquid; the outlet pipe is used to discharge the gas whose temperature has decreased after heat exchange, ensuring the normal operation of gas circulation in the heating chamber 5.

[0057] The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. A purification apparatus for carbon tar crude liquor, comprising a spiral separator (1), a condenser heat exchanger (2), and a buffer tank (3) connected in sequence, characterized in that, The spiral separator (1) includes a tank (4) and a heating chamber (5). The tank (4) is equipped with a spiral scraping mechanism (6) for scraping tar off the inner wall of the tank (4). The spiral scraping mechanism (6) includes a rotating shaft (61), spiral blades (62), multiple support rods (63), a drive mechanism (64) for driving the rotating shaft (61) to rotate, and a cleaning assembly (7) for cleaning the spiral blades. The rotating shaft (61) is rotatably disposed inside the tank (4). Multiple support rods (63) are fixedly and alternately arranged along the outer wall of the rotating shaft (61). All the support rods... (63) A slot is provided on the side away from the rotating shaft (61). The spiral blade (62) is sleeved on the outside of the rotating shaft (61). Multiple connecting pieces (65) are evenly fixed on the inner edge of the spiral blade (62) along the spiral direction. The multiple connecting pieces (65) are fixedly inserted into the slot one by one. The outer periphery of the spiral blade (62) abuts against the inner wall of the tank (4). The drive mechanism (64) is installed on one side of the outer wall of the tank (4) and is coaxially fixed with the rotating shaft (61). The cleaning component (7) is installed on the top of the tank (4) and abuts against the spiral blade (62). The cleaning assembly (7) includes a housing (66), a partition plate (67), a limiting rotating rod (68), two mutually adsorbing cleaning scrapers (69), and two control components (70) for controlling the separation of the two cleaning scrapers (69). The housing (66) is fixed to the top of the tank (4), and the top of the tank (4) has a groove (14) communicating with the housing (66). The partition plate (67) is horizontally fixed inside the housing (66) and divides the inside of the housing (66) into a storage cavity (71) and a movable cavity (72). The limiting rotating rod (68) is rotatably disposed inside the movable cavity (72), and both ends of the limiting rotating rod (68) pass through both sides of the housing (66) and extend... Outside the housing (66), the two cleaning scrapers (69) are movably mounted on the limiting rotating rod (68). The limiting rotating rod (68) has a cavity (73) inside, and the outer walls of the limiting rotating rod (68) have guide grooves (74) communicating with the cavity (73) on both sides. The cavity (73) has two circular plates (75) slidably connected inside. The two cleaning scrapers (69) have guide sliders (76) fixedly connected on both sides. The two circular plates (75) are fixedly connected to their corresponding two guide sliders (76). The two control components (70) are respectively set on both sides inside the cavity (73) and fixedly connected to the opposite side of the two circular plates (75). In operation, the two cleaning scrapers (69) are magnetically attracted to each other and clamped on both sides of the spiral blade (62).

2. The purification apparatus for carbon tar crude oil according to claim 1, characterized in that: The tank (4) has an exhaust pipe (11) connected to the condenser heat exchanger (2) on one side of the top, a liquid inlet pipe (12) is provided on the side wall of the tank (4), and a residue discharge pipe (13) is provided on the side of the tank (4) away from the liquid inlet pipe (12).

3. The purification apparatus for carbon tar crude oil according to claim 2, characterized in that: The cleaning scraper (69) includes an annular plate (77), a scraper (78) and a magnetic ring (79). The annular plate (77) is sleeved on the limiting rotating rod (68). The scraper (78) is fixed on the outer wall of the annular plate (77), and the length of the scraper (78) is equal to the width of the spiral blade (62). A groove (80) is provided on one side of each of the two cleaning scrapers (69), and the magnetic ring (79) is embedded in the groove (80). Both of the two scrapers (78) have magnetic force on opposite sides.

4. The purification apparatus for carbon tar crude oil according to claim 3, characterized in that: The two scrapers (78) are arranged opposite each other and parallel, and abut against the outer wall of the spiral blade (62) they hold.

5. The purification apparatus for carbon tar crude oil according to claim 2, characterized in that: The control component (70) includes two spring plates (81), two buffer springs (82), and two connecting ropes (83). Two sealing heads (84) are inserted into both ends of the limiting rotating rod (68). The two spring plates (81) are respectively located in the cavity (73) on opposite sides of the two circular plates (75). The two buffer springs (82) are respectively located between the circular plate (75) and the spring plates (81), and the two ends of the buffer springs (82) are respectively fixedly connected to the circular plate (75) and the spring plates (81). One end of the two connecting ropes (83) is respectively fixed on opposite sides of the two circular plates (75), and the two connecting ropes (83) pass through the buffer springs (82) and the spring plates (81) in sequence and extend to one side of the two sealing heads (84), and are respectively fixedly connected to the two sealing heads (84).

6. The purification apparatus for carbon tar crude oil according to claim 2, characterized in that: The bottom side of the partition plate (67) is uniformly provided with multiple sets of nozzles (85) along its length, and the output ends of all the nozzles (85) are inclined and face the cleaning component (7).

7. The purification apparatus for carbon tar crude oil according to claim 1, characterized in that: The heating chamber (5) is a concave square groove. The tank (4) is horizontally arranged on the top of the heating chamber (5) and fixedly connected to the heating chamber (5). An air inlet pipe and an air outlet pipe are respectively arranged on both sides of the heating chamber (5).

8. The purification apparatus for carbon tar crude oil according to claim 1, characterized in that: The drive mechanism (64) includes a motor and a reducer. The motor is installed on one side of the outer wall of the tank (4). The reducer is connected to the output shaft of the motor. The output shaft of the reducer is coaxially fixed with the rotating shaft (61).

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