Tar residue filtering device for coal tar processing

Abstract

The invention is applicable to the technical field of tar residue filtering, and provides a tar residue filtering device for coal tar processing, which comprises a separating and filtering box, a feeding channel and a plurality of filtering and discharging mechanisms, the feeding channel is fixedly communicated with the top of the separating and filtering box, and the plurality of filtering and discharging mechanisms are uniformly arranged at the bottom of the separating and filtering box. The filter is used for filtering tar and discharging; the filtering and discharging mechanism comprises a tar collecting box, a discharging pipe, a filtering plate and a dredging mechanism, the tar collecting box is fixedly mounted at the bottom of the separating and filtering box, and the discharging pipe is fixedly communicated with the bottom of the tar collecting box. According to the tar residue filtering device for coal tar processing, the filtering holes are dredged from bottom to top through the dredging mechanism, it is ensured that tar can continuously and smoothly pass through the filtering holes, due to the fact that the dredging mode from bottom to top is adopted, impurities can be more easily reserved in the separating and filtering box and are not prone to falling into the lower portion to be mixed into the tar again, and the whole filtering device is purer.

Description

Technical Field

[0001] The invention belongs to the technical field of tar residue filtering, and in particular relates to a tar residue filtering device for coal tar processing. Background Art

[0002] With the development of coal chemical industry and the expansion of production capacity, the amount of coal tar residue is also increasing. Coal tar residue contains a variety of toxic and carcinogenic substances such as benzene, phenol, naphthalene, etc., which are very harmful. Direct discharge will cause serious pollution to the soil, water and atmosphere. On the other hand, coal tar residue contains a large amount of fixed carbon and organic components, has a high calorific value, and is a valuable resource that should be reasonably processed and utilized. Therefore, separating oil and residue is the most important method for treating coal tar residue, which can make full use of resources.

[0003] However, the composition of tar residue is relatively complex and its viscosity is very high. Direct filtration with a filter can easily cause the tar residue to adhere to the filter surface or cause the filter holes to be blocked, resulting in poor filtration effect. After searching, the patent document with the authorization announcement number CN220116465U maintains its good fluidity by heating the coal tar during the filtration process, and blocks and stirs it with a baffle when passing through the filter position, thereby increasing its action time at the filter contact point, thereby avoiding the coal tar from adhering to the filter, and ensuring that it is fully filtered and separated from the oil, thereby obtaining a better filtration and separation effect.

[0004] However, no matter which method is used, coal tar impurities are likely to clog the mesh and cannot be completely eliminated. The traditional method of sweeping from above, although it can clean most impurities, will also cause some impurities to be squeezed out along the mesh by the pressure of the sweeping, allowing them to pass through the filter, resulting in more secondary mixing problems. Summary of the Invention

[0005] The present invention provides a tar residue filtering device for coal tar processing, aiming to solve the problem proposed in the above background technology that the traditional method of sweeping from above causes some impurities to be squeezed out along the mesh due to the pressure of the sweeping.

[0006] To solve the above problems, the present invention is implemented as follows: a coal tar processing tar residue filtering device, comprising: a separation filter box, a feed channel and a plurality of filtering and discharging mechanisms, the feed channel is fixedly connected to the top of the separation filter box, and the plurality of filtering and discharging mechanisms are evenly arranged at the bottom of the separation filter box for filtering the tar and discharging it; the filtering and discharging mechanism comprises a tar collection box, a discharge pipe, a filter plate and a dredging mechanism, the tar collection box is fixedly installed at the bottom of the separation filter box, the discharge pipe is fixedly connected to the bottom of the tar collection box, the filter plate is fixedly embedded on the bottom inner wall of the separation filter box, the filter plate is arranged corresponding to the tar collection box, and a plurality of filter holes are opened on the filter plate for connecting the separation filter box and the tar collection box, and the dredging mechanism is arranged in the tar collection box for dredging the plurality of filter holes from bottom to top.

[0007] Preferably, the dredging mechanism includes a support frame that can slide up and down and is arranged in the tar collection box. A plurality of dredging rods are fixedly installed on the top of the support frame. The plurality of dredging rods respectively correspond to a plurality of filter holes. The length of the dredging rods is equal to the depth of the filter holes. A plurality of flow ports are opened on the support frame for tar circulation. The plurality of flow ports are staggered with the plurality of dredging rods. Guide rods are fixedly installed on the inner walls of the four corners of the tar collection box. Guide sliders can be slidably mounted on the four guide rods. The four corners of the bottom of the support frame are fixed A connecting plate is fixedly installed, and the four connecting plates are fixedly connected to the four guide sliders respectively. A return spring is slidably sleeved on the four guide rods, and the bottom end of the return spring abuts against the top of the corresponding guide slider, and the top abuts against the bottom of the separation filter box. A force frame is fixedly installed on the bottom of the support frame, and a drive shaft is rotatably installed in the tar collection box. The drive shaft is located below the force frame, and both ends of the drive shaft extend to the outside of the tar collection box. A cam member is fixedly sleeved on the drive shaft, and the outer edge of the cam member contacts the bottom of the force frame.

[0008] Preferably, the spacing of the force frame pushed by the cam member is equal to the spacing between the support frame and the filter plate, and the spacing between the support frame and the filter plate is equal to the spacing when the dredging rod is fully inserted into the filter hole.

[0009] Preferably, a plurality of scraping mechanisms are provided in the separation filter box, and the plurality of scraping mechanisms are respectively arranged corresponding to the plurality of filter plates, for scraping impurities on the surface of the filter plates while the dredging mechanism dredges the filter holes, and the scraping mechanisms and the dredging mechanism operate synchronously.

[0010] Preferably, the scraping mechanism includes two rotating shafts rotatably installed in the separation filter box, both ends of the rotating shafts extend to the outside of the separation filter box, and belt rollers are fixedly sleeved on the two rotating shafts. The two belt rollers are sleeved with the same scraping conveyor belt, and two connecting seats are fixedly installed on the outer ring of the scraping conveyor belt at equal intervals. A debris removal scraper is fixedly installed on the two connecting seats, and the moving path of the debris removal scraper scrapes the top of the filter plate.

[0011] Preferably, the cam member has a constant radius portion of at least semicircular size, and the time it takes for the constant radius portion of the cam member to push the force-bearing frame upward to move to a stationary state is equal to the time it takes for the scraper conveyor belt to drive the scraper to move from one initial position to another initial position.

[0012] Preferably, a synchronous wheel 1 is fixedly mounted on the same end of the driving shaft and the corresponding one of the rotating shafts, and the two synchronous wheels 1 are sleeved with the same synchronous belt 1.

[0013] Preferably, a driving motor is fixedly installed on the top of the separation filter box, and a synchronous wheel 2 is fixedly installed on the output shaft of the driving motor and the same end of the multiple rotating shafts. The separation filter box is located on one side of the synchronous wheel 2 and is rotatably installed with multiple tensioning rollers 1, and the multiple synchronous wheels 2 and the tensioning roller 1 are covered with the same synchronous belt 2.

[0014] Preferably, a drainage pipe is fixedly connected to the bottom of the separation filter box on one side away from the feed channel, and valves are provided on the drainage pipe and the discharge pipe.

[0015] Preferably, the planar length of the scraping conveyor belt is greater than the length of the filter plate, and the width of the scraping plate is greater than the width of the filter plate.

[0016] Compared with related technologies, the coal tar processing tar residue filtering device provided by the present invention has the following beneficial effects:

[0017] Compared with the existing technology, this solution uses a dredging mechanism to dredge the filter holes from bottom to top, ensuring that the tar can continue to pass smoothly. Due to the bottom-up dredging method, impurities are more likely to remain in the separation filter box, and are not easy to fall to the bottom and mix with the tar again, making the overall solution purer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main three-dimensional structure of a coal tar processing tar residue filtering device provided by the present invention;

[0019] Figure 2 This is a bottom-up perspective structural diagram of a tar residue filtering device for coal tar processing provided by the present invention;

[0020] Figure 3 This is a schematic diagram of the main structure of a coal tar processing tar residue filtering device provided by the present invention;

[0021] Figure 4 This is a rear structural schematic diagram of a coal tar processing tar residue filtering device provided by the present invention;

[0022] Figure 5 This is a schematic diagram of the main cross-sectional structure of a coal tar processing tar residue filtering device provided by the present invention;

[0023] Figure 6 for Figure 5 Schematic diagram of the enlarged structure of part A shown in FIG;

[0024] Figure 7 for Figure 5 Schematic diagram of the enlarged structure of part B shown in FIG;

[0025] Figure 8 for Figure 7 Schematic diagram of the enlarged structure of part C shown in ;

[0026] Figure 9 for Figure 7 Schematic diagram of the enlarged structure of part D shown in FIG;

[0027] Figure 10 Schematic diagram of the three-dimensional structure of the scraping mechanism of the present invention;

[0028] Figure 11 Schematic diagram of the three-dimensional structure of the deflection shaft and the debris retaining net 36 in the present invention;

[0029] Figure 12 It is a top view schematic diagram of the three-dimensional structure of the tar collection box and the dredging mechanism in the present invention;

[0030] Figure 13 for Figure 12 The bottom-up perspective structural diagram shown;

[0031] Figure 14 for Figure 12 The side view cross-sectional structural diagram shown.

[0032] Reference numerals: 1, separation filter box; 2, feed channel; 3, tar collection box; 4, discharge pipe; 5, filter plate; 6, filter hole; 7, support frame; 8, dredging rod; 9, flow port; 10, guide rod; 11, guide slider; 12, connecting plate; 13, return spring; 14, force frame; 15, drive shaft; 16, cam member; 17, rotating shaft; 18, belt roller; 19, scraper conveyor belt; 20, connecting seat; 21, impurity scraper; 22, synchronous pulley 1; 23, synchronous belt 1; 24, drive motor; 25, synchronous pulley 2; 26, tensioning roller 1; 27, synchronous belt 2; 28, impurity discharge pipe; 29, impurity collection port; 30, impurity storage box; 31. Adjusting screw; 32. Pushing slide; 33. Guide slope; 34. Mounting notch; 35. Angle rotating shaft; 36. Debris retaining net; 37. Impurity inlet; 38. Arc guide surface; 39. Reciprocating power conversion shaft; 40. Tooth group; 41. Circular gear; 42. Small synchronous wheel; 43. Synchronous disk; 44. Differential connecting belt; 45. Bidirectional screw; 46. Pushing scraper; 47. Adaptive shielding extension plate; 48. Side support strip; 49. Tensioning roller two; 50. Synchronous wheel three; 51. Synchronous belt three; 52. Grounding mounting plate; 53. Balance support plate; 54. Hydraulic cylinder; 55. Deflection guide frame; 56. Deflection guide rod; 57. Guide plate; 58. Heating plate. DETAILED DESCRIPTION

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein in the specification of the application are for the purpose of describing specific embodiments only and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the description of the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order; the terms "inside", "outside", "left", and "right" indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention.

[0034] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0035] The embodiment of the present invention provides a tar residue filtering device for coal tar processing, such as Figure 1-14 As shown, the coal tar processing tar residue filtering device includes: a separation filter box 1, a feed channel 2 and a plurality of filtering and discharging mechanisms, the feed channel 2 is fixedly connected to the top of the separation filter box 1, and the plurality of filtering and discharging mechanisms are evenly arranged at the bottom of the separation filter box 1, for filtering the tar and discharging it; the filtering and discharging mechanism includes a tar collection box 3, a discharge pipe 4, a filter plate 5 and a dredging mechanism, the tar collection box 3 is fixedly installed at the bottom of the separation filter box 1, the discharge pipe 4 is fixedly connected to the bottom of the tar collection box 3, the filter plate 5 is fixedly embedded on the bottom inner wall of the separation filter box 1, the filter plate 5 is arranged corresponding to the tar collection box 3, and a plurality of filter holes 6 are opened on the filter plate 5 for connecting the separation filter box 1 and the tar collection box 3, and the dredging mechanism is arranged in the tar collection box 3 for dredging the plurality of filter holes 6 from bottom to top.

[0036] In this embodiment, during use, coal tar containing tar residue is first injected into the separation filter box 1 through the feed channel 2. At this stage, impurities and tar residue in the coal tar enter the separation filter box 1 along with the liquid. Once in the separation filter box 1, the coal tar passes through the filter plate 5 fixed to the bottom inner wall. The densely distributed filter holes 6 on the filter plate 5 allow the tar to pass smoothly, while larger tar residue and impurities are trapped above the filter plate 5. Over time, the tar gradually seeps through the filter holes 6 and flows into the tar collection box 3 below, and then is discharged through the discharge pipe 4.

[0037] In order to keep the filter holes 6 unobstructed and prevent clogging, a dredging mechanism is provided in the tar collection box 3. This mechanism is activated regularly or according to actual needs to dredge the filter holes 6 from bottom to top, ensuring that the tar can continue to pass smoothly. Due to the bottom-up dredging method, impurities are more likely to remain in the separation filter box 1 and are less likely to fall below and mix with the tar again, making the overall tar purer.

[0038] The rationally designed filter plate 5 and densely distributed filter holes 6 effectively intercept tar residue and impurities in the coal tar, improving the purity of the tar. At the same time, the provision of a dredging mechanism ensures the long-term unobstructed flow of the filter holes 6, avoiding the reduction in filtration efficiency due to blockage. The bottom-up dredging method makes it easier for impurities to remain in the separation filter box 1, and less likely to fall below and be mixed with the tar again, resulting in a purer overall tar.

[0039] Traditional filtering devices often need to be cleaned or replaced frequently due to clogging problems, which increases maintenance costs; however, the dredging mechanism of this solution can dredge the filter holes 6 from the bottom, reducing the frequency of cleaning and replacement, thereby reducing maintenance costs.

[0040] In a further preferred embodiment of the present invention, the dredging mechanism includes a support frame 7 that can slide up and down and is arranged in the tar collection box 3. A plurality of dredging rods 8 are fixedly installed on the top of the support frame 7. The plurality of dredging rods 8 correspond to a plurality of filter holes 6 respectively. The length of the dredging rods 8 is equal to the depth of the filter hole 6. A plurality of flow ports 9 are opened on the support frame 7 for tar circulation. The plurality of flow ports 9 are staggered with the plurality of dredging rods 8 respectively. Guide rods 10 are fixedly installed on the inner walls of the four corners of the tar collection box 3. Guide sliders 11 can be slidably sleeved on the four guide rods 10. The four corners of the bottom of the support frame 7 are fixedly installed. There is a connecting plate 12, and the four connecting plates 12 are respectively fixedly connected to the four guide sliders 11. The four guide rods 10 can be slidably sleeved with a return spring 13, and the bottom end of the return spring 13 abuts against the top of the corresponding guide slider 11, and the top abuts against the bottom of the separation filter box 1. A force frame 14 is fixedly installed at the bottom of the support frame 7, and a drive shaft 15 is rotatably installed in the tar collection box 3. The drive shaft 15 is located below the force frame 14, and both ends of the drive shaft 15 extend to the outside of the tar collection box 3. A cam member 16 is fixedly sleeved on the drive shaft 15, and the outer edge of the cam member 16 is in contact with the bottom of the force frame 14.

[0041] In this embodiment, when dredging through the filter holes 6 is required, an external drive source (e.g., a motor) drives the drive shaft 15 to rotate within the tar collection box 3. As the drive shaft 15 rotates, the cam member 16 fixedly mounted thereon also rotates. Because the outer edge of the cam member 16 is in close contact with the bottom of the force-bearing frame 14, the shape of the cam member 16 changes as it rotates, periodically pushing the force-bearing frame 14 upward, thereby driving the entire support frame 7 to slide upward along the guide rods 10.

[0042] As the support frame 7 rises, the multiple dredging rods 8 fixed to its top correspond to and are inserted into the filter holes 6 one by one. Since the length of the dredging rods 8 is equal to the depth of the filter holes 6, they can effectively dredge the clogged filter holes 6. At the same time, the multiple flow ports 9 provided on the support frame 7 ensure the smooth flow of tar. These flow ports 9 are staggered with the dredging rods 8 to avoid obstruction of tar flow during dredging.

[0043] When the cam member 16 rotates to the point where it no longer pushes the force-bearing frame 14 , the support frame 7 will slide down rapidly along the guide rod 10 due to the elastic force of the return spring 13 , returning to the initial position, and waiting for the next dredging operation.

[0044] Through the interaction between the cam member 16 and the force-bearing frame 14, the automatic up and down movement of the dredging rod 8 is achieved, thereby efficiently dredging the filter hole 6 and avoiding the tediousness and inconvenience of manual cleaning.

[0045] Since the dredging rod 8 is inserted into the filter hole 6 from bottom to top for dredging, the dredged impurities are more likely to remain in the separation filter box 1 and will not fall into the tar collection box 3 to cause secondary pollution, thereby ensuring the purity of the tar.

[0046] In a further preferred embodiment of the present invention, the spacing of the movement of the force-bearing frame 14 pushed by the cam member 16 is equal to the spacing of the movement between the support frame 7 and the filter plate 5, and the spacing between the support frame 7 and the filter plate 5 is equal to the spacing of the movement when the dredging rod 8 is fully inserted into the filter hole 6.

[0047] In this embodiment, the interaction between the cam member 16 and the force frame 14 is precisely designed to optimize the dredging effect. When the drive shaft 15 drives the cam member 16 to rotate, the top of the cam member 16 will periodically contact and push the force frame 14, causing it to move upward. This movement spacing is precisely controlled to ensure that it is equal to the rising spacing of the support frame 7 relative to the filter plate 5. As the support frame 7 rises, the dredging rod 8 fixed thereon will be fully inserted into the corresponding filter hole 6 for deep dredging. Since the spacing between the support frame 7 and the filter plate 5 is set to be equal to the movement spacing required for the dredging rod 8 to be fully inserted into the filter hole 6, each dredging can ensure that the filter hole 6 is thoroughly cleaned.

[0048] In a further preferred embodiment of the present invention, a plurality of scraping mechanisms are provided in the separation filter box 1, and the plurality of scraping mechanisms are respectively arranged corresponding to the plurality of filter plates 5, for scraping impurities on the surface of the filter plates 5 while the dredging mechanism dredges the filter holes 6, and the scraping mechanisms and the dredging mechanism operate synchronously.

[0049] In this embodiment, multiple scraping mechanisms are added to the separation filter box 1. These scraping mechanisms are arranged one-to-one with the filter plates 5. Their main function is to scrape and clean impurities on the surface of the filter plates 5 while the dredging mechanism dredges the filter holes 6. Impurities on the filter plates 5 are cleaned in a timely manner to prevent them from clogging the filter holes 6 again or affecting the filtration efficiency.

[0050] In a further preferred embodiment of the present invention, the scraping mechanism includes two rotating shafts 17 rotatably installed in the separation filter box 1, both ends of the rotating shafts 17 extend to the outside of the separation filter box 1, and the two rotating shafts 17 are fixedly provided with a belt roller 18, and the two belt rollers 18 are provided with the same scraping conveyor belt 19, and the outer ring of the scraping conveyor belt 19 is fixedly installed with two connecting seats 20 at equal intervals, and the two connecting seats 20 are fixedly installed with a debris removal scraper 21, and the moving path of the debris removal scraper 21 scrapes the top of the filter plate 5.

[0051] In this embodiment, the scraping mechanism mainly includes two rotating shafts 17 rotatably mounted in the separation filter box 1, and both ends thereof extend to the outside of the separation filter box 1 to facilitate connection with an external drive source. On the rotating shaft 17, a belt roller 18 is fixedly sleeved, and the same scraping conveyor belt 19 is sleeved between the two belt rollers 18. Two connecting seats 20 are fixedly installed at equal intervals on the outer ring of the scraping conveyor belt 19, and a scraping blade 21 is fixedly installed on each connecting seat 20. When the external drive source (such as a motor) drives the rotating shaft 17 to rotate, the belt roller 18 will rotate accordingly, thereby driving the scraping conveyor belt 19 to circulate. As the scraping conveyor belt 19 moves, the scraping blade 21 will scrape impurities on the top of the filter plate 5 along a predetermined moving path, thereby achieving synchronous operation with the dredging mechanism.

[0052] Through the circular movement of the scraping conveyor belt 19 and the scraping action of the impurity removing scraper 21 , impurities on the top of the filter plate 5 can be efficiently cleaned to prevent them from clogging the filter holes 6 , thereby ensuring the filtering efficiency.

[0053] The scraping mechanism and the dredging mechanism are designed to operate synchronously, that is, while the dredging mechanism is dredging the filter holes 6, the scraping mechanism is also removing impurities from the filter plate 5. The two cooperate with each other to improve the overall filtering effect.

[0054] In a further preferred embodiment of the present invention, the cam member 16 has a constant radius portion of at least semicircular size, and the time it takes for the constant radius portion of the cam member 16 to push the force-bearing frame 14 upward to move to a standstill is equal to the time it takes for the scraper conveyor belt 19 to drive the scraper 21 to move from one initial position to another initial position.

[0055] In this embodiment, the cam member 16 is designed to have a constant radius portion of at least semicircular size. This design enables the cam member 16 to smoothly push the force frame 14 upward when the constant radius portion contacts the force frame 14. In the process of the constant radius portion and the force frame 14, the dredging rod 8 is ensured to be permanently inserted into the filter hole 6 and closed, so that the upper surface of the filter plate 5 is flat, and the impurity scraper 21 can be completely scraped, so as to ensure that the time taken by the impurity scraping conveyor belt 19 to drive the impurity scraper 21 from one initial position to another is equal, and a complete impurity removal cycle is ensured, and the synchronization between the two is further improved.

[0056] Through the special design of the radius part such as the cam part 16, precise synchronization between the dredging mechanism and the scraping mechanism is achieved, ensuring a high degree of coordination between the two during the working process. The dredging rod 8 is inserted into the filter hole 6 for a long time and is closed, so that the upper surface of the filter plate 5 remains flat, providing an unobstructed scraping path for the scraper 21, thereby improving the impurity removal efficiency.

[0057] In a further preferred embodiment of the present invention, a synchronous wheel 22 is fixedly mounted on the same end of the driving shaft 15 and the corresponding one of the rotating shafts 17 , and the two synchronous wheels 22 are sleeved with a same synchronous belt 23 .

[0058] In this embodiment, the drive shaft 15 is used to drive the cam member 16 to rotate. A synchronous pulley 22 is fixedly mounted on the same end as the corresponding rotating shaft 17 (the shaft used to drive the scraper conveyor belt 19). These two synchronous pulleys 22 are connected by a common synchronous belt 23, forming a stable transmission system.

[0059] When the drive shaft 15 rotates under the influence of an external power source (such as a motor), it transmits the rotational force to the rotating shaft 17 via the synchronous pulley 1 22 and the synchronous belt 1 23. Because the two are tightly connected by the synchronous belt, their rotational speed and phase are always consistent. Thus, when the cam member 16 rotates under the influence of the drive shaft 15, pushing the force-bearing frame 14 and the dredging rod 8 to clear the blockage, the rotating shaft 17 also rotates synchronously, driving the scraping conveyor belt 19 and the debris removal scraper 21 to remove debris.

[0060] In a further preferred embodiment of the present invention, a drive motor 24 is fixedly installed on the top of the separation filter box 1, and a synchronous wheel 25 is fixedly installed on the same end of the output shaft of the drive motor 24 and the multiple rotating shafts 17. The separation filter box 1 is located on one side of the synchronous wheel 25 and is rotatably installed with multiple tensioning rollers 26. The multiple synchronous wheels 25 and the tensioning rollers 26 are sleeved with the same synchronous belt 27.

[0061] In this embodiment, a drive motor 24 is fixedly mounted on the top of the separation filter box 1, serving as the power source for the entire transmission system. A second synchronous pulley 25 is fixedly mounted on the output shaft of the drive motor 24 and on the same end of the multiple rotating shafts 17. Subsequently, multiple first tensioning rollers 26 are rotatably mounted at appropriate locations within the separation filter box 1 to adjust and maintain the tension of a second synchronous belt 27. These second synchronous pulleys 25 and first tensioning rollers 26 are jointly sleeved with a single second synchronous belt 27, forming a closed-loop transmission system.

[0062] When the drive motor 24 is activated, its output shaft rotates the synchronous gear 25, which in turn transmits the rotational power to the synchronous gears 25 on all rotating shafts 17 via the synchronous belt 27. The closed-loop nature of the synchronous belt 27 and the regulation of the tensioning roller 1 26 ensure that all rotating shafts 17 rotate synchronously and at a consistent speed. This allows the scraper conveyor belt 19 and the scraper blade 21 in the scraper mechanism to operate synchronously with the dredging mechanism, driven by the single power source of the drive motor 24.

[0063] In a further preferred embodiment of the present invention, a drainage pipe 28 is fixedly connected to the bottom of the separation filter box 1 on the side away from the feed channel 2, and valves are provided on the drainage pipe 28 and the discharge pipe 4.

[0064] In this embodiment, a drain pipe 28 is fixedly connected to the bottom of the separation filter box 1 on the side away from the feed channel 2 to facilitate the removal of impurities during cleaning. Furthermore, to ensure independent control of impurities and filtered liquid, valves are installed on both drain pipe 28 and the existing discharge pipe 4. This allows the operator to independently control the discharge of impurities and the outflow of filtered liquid as needed.

[0065] In a further preferred embodiment of the present invention, the planar length of the scraping conveyor belt 19 is greater than the length of the filter plate 5 , and the width of the scraping plate 21 is greater than the width of the filter plate 5 .

[0066] In this embodiment, the planar length of the scraping conveyor belt 19 is designed to be greater than the length of the filter plate 5 to ensure that during the scraping process, the scraping conveyor belt 19 can completely cover and extend beyond both ends of the filter plate 5, thereby effectively scraping and conveying away all impurities on the filter plate 5. At the same time, the width of the impurity removal scraper 21 is also increased to be greater than the width of the filter plate 5. This ensures that the impurity removal scraper 21 can fully contact the entire width of the filter plate 5 when scraping impurities, leaving no blind spots and further improving the impurity removal effect.

[0067] In order to further improve the use effect of this device, in addition to the above scheme, this scheme also has the following embodiments:

[0068] In another embodiment of the present invention, a plurality of impurity collecting mechanisms are provided at the bottom of the separation filter box 1, and the plurality of impurity collecting mechanisms are respectively arranged alternately with the plurality of tar collection boxes 3. The impurity collecting mechanisms include an impurity collection port 29 and an impurity storage box 30. The impurity collection port 29 is opened at the bottom of the separation filter box 1. The impurity collection port 29 is located on the impurity discharge side after the impurity removal scraper 21 scrapes the filter plate 5, and is used to receive impurities. The impurity storage box 30 is fixedly installed at the bottom of the separation filter box 1, and is used to receive impurities discharged from the impurity collection port 29 and for tar precipitation.

[0069] In this embodiment, a plurality of impurity collection mechanisms are added to the bottom of the separation filter box 1. These impurity collection mechanisms and the tar collection box 3 are arranged in a staggered layout, aiming to more effectively manage and collect impurities scraped from the filter plate 5. Each impurity collection mechanism consists of an impurity collection port 29 and an impurity storage box 30. The impurity collection port 29 is cleverly opened at the bottom of the separation filter box 1, and is located on the impurity discharge side after the impurity removal scraper 21 scrapes the impurities from the filter plate 5, ensuring that the scraped impurities can be accurately received. The impurity storage box 30 is fixedly installed at the bottom of the separation filter box 1, responsible for receiving impurities discharged from the impurity collection port 29, and providing space for the precipitation of heavy components such as tar.

[0070] By providing multiple impurity collection mechanisms at the bottom of the separation filter box 1 and matching the impurity removal path of the impurity removal scraper 21, immediate and efficient impurity collection is achieved. This design reduces the retention time of impurities during the filtration process and improves the impurity collection efficiency.

[0071] The staggered arrangement of the impurity collection mechanism and the tar collection box 3 not only fully utilizes the space at the bottom of the separation and filtration box 1, but also avoids mutual interference between the two. This layout helps to keep the interior of the equipment clean and orderly, and improves the overall operating efficiency of the equipment.

[0072] The impurity collection box 30 not only collects impurities but also provides ample space for heavy components like tar to settle. This design helps further purify the filtered liquid, improving the purity and quality of the product. Furthermore, the settling of tar facilitates subsequent recovery and processing.

[0073] In another embodiment of the present invention, an adjusting screw 31 is threadedly installed on the bottom of the impurity storage box 30, and a pushing slide 32 is slidably installed in the impurity storage box 30 for pushing impurities upward during cleaning. The pushing slide 32 is rotatably connected to the adjusting screw 31.

[0074] In this embodiment, an adjustment screw 31 is threadedly mounted on the bottom of the impurity storage box 30, and a pusher slide 32 is slidably mounted within the box. The pusher slide 32 is designed to push impurities upward through its sliding motion during impurity removal, thereby facilitating the removal of impurities and the cleaning of the storage box. To achieve sliding control of the pusher slide 32, it is rotationally connected to the adjustment screw 31. Thus, when the operator rotates the adjustment screw 31, the threaded adjustment screw 31 moves up and down at the bottom of the impurity storage box 30, simultaneously driving the pusher slide 32, to which it is rotationally connected, to slide within the box, thereby pushing and removing impurities.

[0075] In another embodiment of the present invention, the impurity collection port 29 is located on one side of the filter plate 5 as a material guide slope 33, and an installation notch 34 is opened on the other side. A deflection shaft 35 is rotatably installed in the installation notch 34, and both ends of the deflection shaft 35 extend to the outside of the separation filter box 1. A debris retaining net 36 fixedly mounted on the deflection shaft 35 is provided in the installation notch 34. The deflection angle of the debris retaining net 36 is 0-90°, and the mesh of the debris retaining net 36 is smaller than the aperture of the filter hole 6. The debris retaining net 36 is located on one side of the material guide slope 33 and has an arc-shaped guide surface 38. Between the arc-shaped guide surface 38 and the material guide slope 33 is an impurity inlet 37 whose size can be adjusted according to the deflection angle of the debris retaining net 36. The inlet is larger than the outlet to prevent backflow.

[0076] In this embodiment, the impurity collection port 29 is designed to have two parts: a guide slope 33 and a mounting notch 34. The guide slope 33 is located on one side of the filter plate 5 and is used to guide impurities to enter the impurity collection port 29 smoothly. The mounting notch 34 is located on the other side of the impurity collection port 29, and an angled shaft 35 is rotatably installed inside. Both ends of the angled shaft 35 extend to the outside of the separation filter box 1 for easy adjustment. In the mounting notch 34, a debris-blocking net 36 is fixedly mounted on the angled shaft 35, and the deflection angle of the debris-blocking net 36 can be adjusted between 0-90°. The mesh of the debris-blocking net 36 is smaller than the aperture of the filter hole 6, ensuring that only impurities smaller than the size of the filter hole 6 can pass through. In addition, the debris-blocking net 36 is designed with an arc-shaped guide surface 38 on the side close to the guide slope 33, and an impurity inlet 37 is formed between the guide slope 33, the size of which can be adjusted according to the deflection angle of the debris-blocking net 36. The inlet of the impurity inlet 37 is larger than the outlet, which helps to prevent impurities from flowing back.

[0077] Through the design of the guiding slope 33 , impurities can be guided to the impurity collecting port 29 more smoothly, thereby improving the impurity collection efficiency.

[0078] The inlet of the impurity inlet 37 is larger than the outlet, and combined with the arc-shaped guide surface 38 of the impurity retaining net 36, it effectively prevents the backflow of impurities during the collection process, ensuring the stable collection and discharge of impurities.

[0079] The combined design of the deflection shaft 35 and the debris retaining net 36 allows the user to adjust the deflection angle of the debris retaining net 36 according to actual needs, thereby flexibly controlling the size and shape of the impurity inlet 37 to adapt to the impurity collection needs under different working conditions. It can also be actively opened synchronously when scraping impurities to allow impurities to enter, and closed synchronously after the scraping work is completed to prevent backflow.

[0080] In another embodiment of the present invention, a reciprocating power conversion shaft 39 is rotatably installed in each of the plurality of tar collection boxes 3, and both ends of the reciprocating power conversion shaft 39 extend outside the tar collection box 3. The reciprocating power conversion shaft 39 is located below the support frame 7 and on one side of the force frame 14. A tooth group 40 is fixedly installed on a connecting plate 12 corresponding to the reciprocating power conversion shaft 39, and a circular gear 41 is fixedly sleeved on the reciprocating power conversion shaft 39. The circular gear 41 is engaged with the tooth group 40 so that the connecting plate 12 slides and drives the reciprocating power conversion shaft 39 to rotate. A small synchronous wheel 42 is fixedly installed at one end of the reciprocating power conversion shaft 39, and a synchronous disk 43 is fixedly installed at one end of the deflection shaft 35 corresponding to the reciprocating power conversion shaft 39. The small synchronous wheel 42 and the synchronous disk 43 are sleeved with the same differential connecting belt 44, and the deflection angle of the synchronous disk 43 is 0-90°.

[0081] In this embodiment, a reciprocating power conversion shaft 39 is rotatably mounted within each tar collection box 3, with both ends extending outside the tar collection box 3 to facilitate connection to external mechanisms. A gear set 40 is fixedly mounted below the support frame 7 and on one side of the force-bearing frame 14, corresponding to the position of the reciprocating power conversion shaft 39. When the support frame 7 slides upward, it also causes the connecting plate 12 to slide upward, and the gear set 40 on it engages with the circular gear 41 on the reciprocating power conversion shaft 39, thereby driving the reciprocating power conversion shaft 39 to rotate. Otherwise, the gear set 40 reverses, achieving reciprocating rotation of the reciprocating power conversion shaft 39 in response to the upward and downward movement of the support frame 7.

[0082] Furthermore, a small synchronous pulley 42 is fixedly mounted on one end of the reciprocating power conversion shaft 39, while a synchronous disc 43 is fixedly mounted on one end of the deflection shaft 35 in the impurity collection mechanism corresponding to the tar collection box 3. A differential belt 44 connects the small synchronous pulley 42 and the synchronous disc 43, enabling power transmission and synchronous adjustment between them. The deflection angle of the synchronous disc 43 is also designed to be adjustable from 0° to 90° to meet the adjustment requirements under different operating conditions, achieving the effect of synchronized opening and closing of the scraper and debris retaining screens 36.

[0083] In another embodiment of the present invention, a bidirectional screw 45 can be rotatably installed in each of the plurality of tar collection boxes 3, and both ends of the bidirectional screw 45 extend to the outside of the tar collection box 3. Two push scrapers 46 are threadedly sleeved on the tar collection box 3, and the two push scrapers 46 are in contact with the inner wall of the tar collection box 3, and are used to scrape glycerin to the discharge pipe 4. Adaptive shielding extension plates 47 can be slidably installed on both sides of the tar collection box 3, and the two adaptive shielding extension plates 47 are respectively fixedly connected to the two push scrapers 46, and are used to shield the rear position when the push scraper 46 slides to prevent glycerin from entering.

[0084] In this embodiment, a bidirectional screw 45 is rotatably installed in multiple tar collection boxes 3. Its design feature is that both ends extend to the outside of the tar collection box 3, which is convenient for connection to an external drive mechanism. At the same time, two pusher scrapers 46 are threadedly provided on the tar collection box 3. These two pusher scrapers 46 are in close contact with the inner wall of the tar collection box 3 and are used to scrape and push glycerin toward the discharge pipe 4 under the drive of the bidirectional screw 45. In addition, to prevent glycerin from overflowing from behind the pusher scrapers 46 during the pushing process, adaptive shielding extension plates 47 are slidably installed on both sides of the tar collection box 3. These two adaptive shielding extension plates 47 are respectively fixedly connected to the two pusher scrapers 46 to ensure that the rear position of the pusher scrapers 46 can be effectively shielded when the pusher scrapers 46 slide.

[0085] By introducing the combined design of the bidirectional screw 45 and the pusher scraper 46, the glycerin is effectively scraped and pushed in the tar collection box 3. This mechanized collection method not only improves the collection efficiency of glycerin, but also reduces the need for manual intervention and reduces labor intensity.

[0086] The adaptive shielding extension plate 47 is closely matched with the pushing scraper 46 to ensure that the position behind the scraper can be shielded during the pushing process.

[0087] In another embodiment of the present invention, side support strips 48 are fixedly installed on both sides of the tar collection box 3, and tensioning rollers 2 49 are fixedly installed on the two side support strips 48. A synchronous wheel 3 50 is fixedly installed on the same end of the reciprocating power conversion shaft 39 and the bidirectional screw 45. The two synchronous wheels 3 50 and the multiple tensioning rollers 2 49 are provided with the same synchronous belt 3 51.

[0088] In this embodiment, side support strips 48 are fixedly installed on both sides of the tar collection box 3, and tensioning rollers 2 49 are fixedly installed on the side support strips 48. Their function is to maintain the tension of the synchronous belt 3 51 during the power transmission process to ensure the stability and reliability of the power transmission.

[0089] Furthermore, a synchronous pulley 3 50 is fixedly mounted on the same end of the reciprocating power conversion shaft 39 and the bidirectional screw 45. These synchronous pulleys 3 50 cooperate with a synchronous belt 3 51 attached to multiple tension rollers 2 49 to form a closed-loop power transmission system. This system ensures that the reciprocating power conversion shaft 39 and the bidirectional screw 45 rotate synchronously during operation, thereby achieving coordinated scraping and pushing of material within the tar collection box 3.

[0090] In another embodiment of the present invention, a grounding mounting plate 52 is hingedly installed on the bottom of one side of the separation filter box 1, and a balancing support plate 53 is provided on the bottom of the other side. The separation filter box 1 is placed on the balancing support plate 53, and the grounding mounting plate 52 and the balancing support plate 53 can be fixed to the ground. The balancing support plate 53 and the bottom of the separation filter box 1 are hingedly installed with a hydraulic cylinder 54, and both sides of the separation filter box 1 are provided with a deflection guide frame 55 fixedly connected to the balancing support plate 53, and a deflection guide rod 56 is movably installed on the two deflection guide frames 55, and the two deflection guide rods 56 are respectively fixedly connected to the two sides of the separation filter box 1.

[0091] In this embodiment, a grounding mounting plate 52 is hingedly mounted on the bottom of one side of the separation filter box 1, and a balancing support plate 53 is provided on the bottom of the other side. The separation filter box 1 is stably placed on the balancing support plate 53. This design allows both the grounding mounting plate 52 and the balancing support plate 53 to be fixed to the ground, providing a stable support foundation for the separation filter box 1.

[0092] To further enhance the adjustable flexibility of the separation filter box 1, a hydraulic cylinder 54 is hingedly mounted between the balancing support plate 53 and the bottom of the separation filter box 1. By controlling the extension and retraction of the hydraulic cylinder 54, the separation filter box 1 can be tilted within a certain range, allowing the impurities to be discharged through the impurity discharge pipe 28. Furthermore, deflection guides 55 are fixedly connected to the balancing support plate 53 on both sides of the separation filter box 1. Deflection guide rods 56 are movably mounted on the deflection guides 55. These two deflection guide rods 56 are fixedly connected to the sides of the separation filter box 1, respectively, to provide guidance and support when the separation filter box 1 is deflected and adjusted.

[0093] In another embodiment of the present invention, two guide plates 57 are fixedly installed in the separation filter box 1 , and the sides of the two guide plates 57 that contact the tar are both provided with a heating plate 58 .

[0094] In this embodiment, two guide plates 57 are fixedly installed within the separation filter box 1. These two guide plates 57 cleverly guide the flow path of the tar within the separation filter box 1, promoting more even distribution and flow of the tar. The small openings of the two guide plates 57 correspond to scraping mechanisms, guiding the tar. Heating plates 58 are installed on the sides of the guide plates 57 that contact the tar. These heating plates 58 generate heat during operation to heat the tar they come into contact with.

[0095] In summary, compared with the relevant technology, this device adopts a dredging mechanism to dredge the filter hole 6 from bottom to top, ensuring that the tar can continue to pass smoothly. Due to the use of a dredging method from bottom to top, impurities are more likely to remain in the separation filter box 1, and are not easy to fall to the bottom and mix with the tar again, making the overall flow purer.

[0096] In the several embodiments provided in this application, it should be understood that the disclosed device can be implemented in other ways.

[0097] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the invention. Obviously, the embodiments described are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also fall within the scope of protection of the present invention.

Claims

1. A coal tar processing tar residue filtering device, characterized in that: include: A separation filter box, a feed channel and a plurality of filter discharge mechanisms, wherein the feed channel is fixedly connected to the top of the separation filter box, and a plurality of filter discharge mechanisms are evenly arranged at the bottom of the separation filter box for filtering and discharging tar; The filtering and discharging mechanism includes a tar collection box, a discharge pipe, a filter plate and a dredging mechanism. The tar collection box is fixedly installed at the bottom of the separation filter box, the discharge pipe is fixedly connected to the bottom of the tar collection box, the filter plate is fixedly embedded on the bottom inner wall of the separation filter box, the filter plate is arranged corresponding to the tar collection box, and a plurality of filter holes are opened on the filter plate for connecting the separation filter box and the tar collection box. The dredging mechanism is arranged in the tar collection box for dredging the plurality of filter holes from bottom to top.

2. The coal tar processing tar residue filtering device according to claim 1, characterized in that: The dredging mechanism includes a support frame that can slide up and down and is arranged in the tar collection box. A plurality of dredging rods are fixedly installed on the top of the support frame. The plurality of dredging rods correspond to a plurality of filter holes respectively. The length of the dredging rod is equal to the depth of the filter hole. A plurality of flow ports are opened on the support frame for tar circulation. The plurality of flow ports are staggered with the plurality of dredging rods. Guide rods are fixedly installed on the inner walls of the four corners of the tar collection box. Guide sliders can be slidably sleeved on the four guide rods. The four corners of the bottom of the support frame are fixedly installed. A connecting plate is provided, and the four connecting plates are respectively fixedly connected to the four guide sliders, and a return spring is slidably sleeved on the four guide rods, the bottom end of the return spring abuts against the top of the corresponding guide slider, and the top end abuts against the bottom of the separation filter box, and a force frame is fixedly installed at the bottom of the support frame, and a drive shaft is rotatably installed in the tar collection box, and the drive shaft is located below the force frame. Both ends of the drive shaft extend to the outside of the tar collection box, and a cam member is fixedly sleeved on the drive shaft, and the outer edge of the cam member is in contact with the bottom of the force frame.

3. The coal tar processing tar residue filtering device according to claim 2, characterized in that: The spacing of the force-bearing frame pushed by the cam member is equal to the spacing between the support frame and the filter plate, and the spacing between the support frame and the filter plate is equal to the spacing when the dredging rod is fully inserted into the filter hole.

4. The coal tar processing tar residue filtering device according to claim 2, characterized in that: A plurality of scraping mechanisms are arranged in the separation filter box, and the plurality of scraping mechanisms are respectively arranged corresponding to the plurality of filter plates, and are used to scrape off impurities on the surface of the filter plates while the dredging mechanism dredges the filter holes, and the scraping mechanisms and the dredging mechanism operate synchronously.

5. The coal tar processing tar residue filtering device according to claim 4, characterized in that: The scraping mechanism includes two rotating shafts rotatably installed in the separation filter box, both ends of the rotating shafts extend to the outside of the separation filter box, and belt rollers are fixedly sleeved on the two rotating shafts. The two belt rollers are sleeved with the same scraping conveyor belt, and the outer ring of the scraping conveyor belt is fixedly installed with two connecting seats at equal intervals, and scraper plates are fixedly installed on the two connecting seats. The moving path of the scraper plates scrapes the top of the filter plate.

6. The coal tar processing tar residue filtering device according to claim 5, characterized in that: The cam member has an equal radius portion of at least semicircular size, and the time taken by the equal radius portion of the cam member to push the force-bearing frame upward to a stationary state is equal to the time taken by the scraper conveyor belt to drive the scraper to move from one initial position to another initial position.

7. The coal tar processing tar residue filtering device according to claim 5, characterized in that: A synchronous wheel 1 is fixedly mounted on the same end of the driving shaft and the corresponding rotating shaft, and the two synchronous wheels 1 are sleeved with the same synchronous belt 1.

8. The coal tar processing tar residue filtering device according to claim 5, characterized in that: A driving motor is fixedly installed on the top of the separation filter box, and a synchronous wheel 2 is fixedly installed on the same end of the output shaft of the driving motor and the multiple rotating shafts. The separation filter box is rotatably installed with multiple tensioning rollers 1 on one side of the synchronous wheel 2, and the multiple synchronous wheels 2 and the tensioning roller 1 are sleeved with the same synchronous belt 2.

9. The coal tar processing tar residue filtering device according to claim 1, characterized in that: The bottom of the separation filter box on one side away from the feed channel is fixedly connected with a drainage pipe, and valves are provided on the drainage pipe and the discharge pipe.

10. The coal tar processing tar residue filtering device according to claim 5, characterized in that: The plane length of the scraping conveyor belt is greater than the length of the filter plate, and the width of the scraping plate is greater than the width of the filter plate.

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