Carbonization purification pyrolysis liquid thickener

Abstract

The utility model relates to the technical field of thickeners, in particular to a carbonization and purification pyrolysis liquid thickener which comprises a shell, a top cover is welded to the upper end of the shell, a center barrel is welded to the center of the bottom of the top cover, an overflow weir is welded to the upper end of the inner wall of the shell, and a plurality of U-shaped siphons are fixedly connected to the outer side of the overflow weir in a penetrating mode; according to the utility model, by arranging the transverse feeding pipe and guiding materials through the water blocking baffle and the semi-horn flaring pipe, the inlet jet flow is eliminated, the turbulent flow is reduced, the fed materials are uniformly distributed, serious impact on the materials in a sedimentation area and the whole thickener is avoided, the sedimentation effect is prevented from being influenced, and the condition that the materials are boiled after flash evaporation is also avoided; the arranged center barrel plays roles in isolating and stabilizing flow, material fluctuation is reduced, the settling effect is improved, meanwhile, pressure generated during flash evaporation and reboiling is conveniently released in time, and the problem that materials gush out from an exhaust port and a bearing sealing ring of the thickener is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of thickeners, in particular to a thickener for carbonization purification of pyrolysis liquid. Background Art

[0002] A thickener utilizes the principle of gravity sedimentation to separate solid and liquid in a low-concentration crystal slurry for thickening purposes. The crystal slurry is fed into the thickener through a feed pipe for sedimentation. The clear liquid is discharged through the overflow port around the perimeter. The sediment or sludge in the thickener gathers towards the center of the bottom of the vessel and is discharged through the discharge port after concentration, thereby increasing the consistency of the material.

[0003] Currently, the thickener faces various problems during use. Firstly, the top-feed method is mostly adopted in the device, which causes problems such as bridging and caking of the wall-hanging material after contact with air, resulting in pipeline blockage. Moreover, this method severely impacts the materials in the sedimentation area and the entire thickener, affecting the sedimentation effect. In addition, when high-temperature and high-pressure pyrolysis materials enter the central barrel of the thickener, flash evaporation and re-boiling phenomena occur, and the pressure generated by boiling evaporation cannot be released in time, leading to the material gushing out from the exhaust port and the bearing seal ring of the thickener, affecting the normal operation of the equipment.

[0004] Therefore, aiming at the many problems existing in the above-mentioned thickener, a thickener for carbonization purification of pyrolysis liquid can be designed. By setting a horizontally entering feed pipe and guiding the material through a water-blocking baffle and a semi-horn flaring pipe, the inlet jet flow is eliminated, the turbulence is reduced, the feed is evenly distributed, the severe impact on the materials in the sedimentation area and the entire thickener, which affects the sedimentation effect, is avoided, and the flash evaporation and re-boiling situation is also avoided. The central barrel set plays a role of isolation and flow stabilization, reducing material fluctuations, improving the sedimentation effect, and at the same time facilitating the timely release of the pressure generated during flash evaporation and re-boiling, solving the problem of the material gushing out from the exhaust port and the bearing seal ring of the thickener. Content of the Utility Model

[0005] In order to overcome the problems that the existing thickener adopts the top-feed method, which easily causes material caking and pipeline blockage, severely impacts the materials in the sedimentation area and the entire thickener, affecting the sedimentation effect, and when high-temperature and high-pressure pyrolysis materials enter the central barrel of the thickener, flash evaporation and re-boiling phenomena occur, and the pressure generated by boiling evaporation cannot be released in time, resulting in material outwelling and affecting the normal operation of the equipment.

[0006] The technical scheme of the utility model is as follows: a carbonization purification pyrolysis liquid thickener, comprising a shell; also comprising a feed pipe, a semi-trumpet expansion pipe and a ventilation window, a top cover is welded on the upper end of the shell, a center barrel is welded on the bottom center of the top cover, an overflow weir is welded on the upper end of the inner wall of the shell, a plurality of U-shaped siphon pipes are penetrated and fixedly connected on the outer side of the overflow weir, six fixed blocks 1 are fixedly connected in a circumferential array at the bottom of the top cover near the inner side, six fixed blocks 2 are fixedly connected in a circumferential array at the bottom of the top cover near the outer side, the bottoms of the six fixed blocks 1 are fixedly connected with inner ring grilles, the bottoms of the six fixed blocks 2 are fixedly connected with outer ring grilles, a feed pipe is fixedly connected on the upper side of the left end of the shell, the right end of the feed pipe penetrates the overflow weir, the outer ring grille, the inner ring grille and the center barrel in sequence, and one end of the feed pipe extending to the inner side of the center barrel is fixedly connected with the semi-trumpet expansion pipe, the upper end of the semi-trumpet expansion pipe is open and the right end is fixedly connected with a water blocking baffle, and a plurality of ventilation windows are provided on the outer side of the upper end of the center barrel.

[0007] Preferably, a feed pipe is provided for entering laterally, so that the pipe cannot come into contact with the air, thereby avoiding the problem of wall clogging of the feed pipe. When the material enters the outer shell from the feed pipe, the water-blocking baffle slows down the flow of the material, and the material flows upward from the upper opening of the semi-trumpet-shaped expansion pipe, eliminating the inlet jet, so that the feed is evenly distributed on the water-passing section of the central barrel, reducing turbulence, and avoiding the problem of flash evaporation and reboiling after the top feed directly rushes into the thick layer. The reduction in flow rate also greatly reduces the risk of impact fluctuations of the material in the central barrel affecting the sedimentation effect. The central barrel also plays a role in isolation and flow stabilization, reducing the impact caused by the entry of the material, preventing and reducing material fluctuations, and improving the sedimentation effect. At the same time, the central barrel is connected to the inner side of the outer shell through a ventilation window, and is further connected to the atmosphere. When the high-temperature and high-pressure material from pyrolysis enters the central barrel of the thickener and flashes and boils again, the generated pressure is released in time, solving the problem of material gushing out from the exhaust port and the thickener bearing sealing ring.

[0008] Preferably, the inner wall of the outer shell is fixedly connected with six fixing plates in a circular array, and one end of each fixing plate facing the center of the outer shell passes through and is fixedly connected to the lower end of the inner ring grille, the outer ring grille and the center barrel, and the fixing plates fix the inner ring grille and the outer ring grille between the inner wall of the outer shell and the outer wall of the center barrel.

[0009] Preferably, the mesh of the outer ring grille is denser than that of the inner ring grille. The U-shaped siphon tube is made of polytetrafluoroethylene tube material. The design of the inner ring grille and the outer ring grille makes the material flow more stable, which is beneficial to improving the sedimentation effect and making the supernatant clearer. In addition, it greatly limits the laminar flow of the feed liquid, shortens the particle sedimentation distance, and greatly shortens the sedimentation time.

[0010] Preferably, five overflow pipes are fixedly connected to the outside of the shell, each overflow pipe is connected to the collection tank of the overflow weir, and a discharge pipe is fixedly connected to the bottom of the shell. Both ends of each U-shaped siphon tube form a communicating vessel. Through the siphon principle, the upper clear liquid between the overflow weir and the central barrel is sucked into the collection tank surrounded by the overflow weir and the inner wall of the shell, and then discharged from each overflow pipe.

[0011] Preferably, the upper end of the top cover is fixedly connected to a support frame 1, the inner top of the support frame 1 is rotatably connected to a cylinder, the movable end of the cylinder is fixedly connected to a connecting rod, the lower end of the connecting rod is movably inserted into the inner bottom side of the outer shell and is fixedly connected to a scraper. When the cylinder is started, the scraper at the bottom can be pushed to contact the inner wall of the bottom side of the outer shell through the connecting rod to carry out the subsequent peeling work of the salt crystals attached to the inner wall.

[0012] Preferably, the upper end of support frame one is fixedly connected to support frame two, and the inner top of support frame two is fixedly connected to a motor. The output shaft of the motor passes through the top wall of support frame one and is fixedly connected to the cylinder. The motor is started to drive the cylinder to rotate, and the scraper is driven to rotate through the connecting rod. The scraper peels off the salt crystals attached to the inner wall to reduce losses.

[0013] Preferably, four supporting legs are fixedly connected to the bottom of the shell, and a supporting plate is fixedly connected to the bottom of each supporting leg. The supporting legs support the device, and the supporting plate expands the contact area with the ground and reduces the pressure on the ground.

[0014] Beneficial effects of the utility model:

[0015] 1. A feed pipe is set up for entering horizontally, so that the pipe cannot contact with the air, and the problem of wall clogging of the feed pipe is avoided. When the material enters the shell from the feed pipe, the water-blocking baffle blocks and slows down the material, and it flows upward from the upper opening of the semi-trumpet expansion pipe, eliminating the inlet jet, making the feed evenly distributed on the water-passing section of the central barrel, reducing turbulence, avoiding serious impact on the sedimentation area and the entire thickener internal material, affecting the sedimentation effect, and avoiding the problem of flash evaporation and reboiling after the top feed directly rushes into the thick layer. The reduction in flow rate also greatly reduces the risk of the impact fluctuation of the material in the central barrel affecting the sedimentation effect. The central barrel set up plays the role of isolation and stabilizing flow, reducing the impact caused by the material entering, preventing and reducing material fluctuations, and improving the sedimentation effect. At the same time, the central barrel is connected to the inner side of the shell through the ventilation window, and further connected to the atmosphere. When the pyrolysis high-temperature and high-pressure material enters the central barrel of the thickener and flashes and boils again, the pressure generated is released in time, solving the problem of material gushing out from the exhaust port and the thickener bearing sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 What is shown is a schematic diagram of the overall three-dimensional structure of a carbonization purification pyrolysis liquid thickener of the utility model;

[0017] Figure 2 Shown is a schematic diagram of the overall internal structure of a carbonization purification pyrolysis liquid thickener of the present utility model;

[0018] Figure 3 Shown is a schematic diagram of the feeding pipe structure of a carbonization purification pyrolysis liquid thickener of the present utility model;

[0019] Figure 4 Shown is a schematic diagram of the central barrel structure of a carbonization purification pyrolysis liquid thickener of the present utility model;

[0020] Figure 5 Shown is a schematic diagram of the overflow weir structure of a carbonization purification pyrolysis liquid thickener of the present utility model;

[0021] Figure 6 Shown is a schematic diagram of the connection structure between the inner ring grille and the outer ring grille of a carbonization purification pyrolysis liquid thickener of the present utility model;

[0022] Figure 7 Shown is a schematic diagram of the scraper structure of a carbonization purification pyrolysis liquid thickener of the present utility model.

[0023] Explanation of reference numerals: 1, outer shell; 2, top cover; 3, central barrel; 4, overflow weir; 5, first fixing block; 6, second fixing block; 7, inner ring grille; 8, outer ring grille; 9, feeding pipe; 10, semi-horn flaring pipe; 11, ventilation window; 12, U-shaped siphon; 13, fixing plate; 14, overflow pipe; 15, first support frame; 16, cylinder; 17, connecting rod; 18, scraper; 19, second support frame; 20, motor; 21, support leg; 22, support plate; 23, discharge pipe; 24, water blocking baffle. Detailed implementation manners

[0024] The present utility model will be further described below with reference to the drawings and embodiments.

[0025] Please refer to Figures 1-7, the present utility model provides an embodiment: a carbonization and purification pyrolysis liquid thickener, which includes a housing 1; it also includes a feed pipe 9, a semi-horn flaring pipe 10 and a ventilation window 11. The upper end of the housing 1 is welded with a top cover 2, the center of the bottom of the top cover 2 is welded with a central barrel 3, the upper end inner wall of the housing 1 is welded with an overflow weir 4, and the outer side of the overflow weir 4 is fixedly connected through and penetrated with a plurality of U-shaped siphons 12. At the position near the inner side of the bottom of the top cover 2, six fixing blocks one 5 are fixedly connected in a circumferential array, and at the position near the outer side of the bottom of the top cover 2, six fixing blocks two 6 are fixedly connected in a circumferential array. The bottom of the six fixing blocks one 5 is fixedly connected with an inner ring grid 7, and the bottom of the six fixing blocks two 6 is fixedly connected with an outer ring grid 8. The upper left side of the housing 1 is fixedly connected with a feed pipe 9. The right end of the feed pipe 9 sequentially penetrates the overflow weir 4, the outer ring grid 8, the inner ring grid 7 and the central barrel 3, and the end of the feed pipe 9 extending to the inner side of the central barrel 3 is fixedly connected with a semi-horn flaring pipe 10. The upper end of the semi-horn flaring pipe 10 is open-shaped and the right end is fixedly connected with a water blocking baffle 24. A plurality of ventilation windows 11 are opened on the outer side of the upper end of the central barrel 3. The horizontally entering feed pipe 9 is provided, and the pipeline is not in contact with air, avoiding the problem of wall caking and pipe blockage of the feed pipe 9. When the material enters the housing 1 from the feed pipe 9, the water blocking baffle 24 blocks and decelerates the material, and it gushes upward from the upper end opening of the semi-horn flaring pipe 10, eliminating the inlet jet flow, making the feed evenly distributed on the cross-section of the water passing through the central barrel 3, reducing turbulence, and also avoiding the problem of flash evaporation and re-boiling after the top feed directly flushes into the thickening layer. The reduction of the flow rate also greatly reduces the risk that the impact fluctuation of the material in the central barrel 3 affects the sedimentation effect. The central barrel 3 also plays a role of isolation and flow stabilization, reducing the impact generated after the material enters, preventing and reducing the material fluctuation, and improving the sedimentation effect. At the same time, the central barrel 3 is communicated with the inner side of the housing 1 through the ventilation window 11 and further communicates with the atmosphere. When the pyrolysis high-temperature and high-pressure material enters the central barrel 3 of the thickener and flash evaporation and re-boiling occur, the generated pressure is released in time, solving the problem that the material gushes out from the exhaust port and the bearing seal ring of the thickener.

[0026] Please refer to Figure 1 and Figure 6, in this embodiment, six fixing plates 13 are fixedly connected to the inner wall of the outer shell 1 in a circumferential array. One end of each fixing plate 13 facing the center of the outer shell 1 penetrates and is fixedly connected to the lower ends of the inner ring grille 7, the outer ring grille 8, and the central barrel 3. The fixing plates 13 fixedly connect the inner ring grille 7 and the outer ring grille 8 between the inner wall of the outer shell 1 and the outer wall of the central barrel 3. The mesh of the outer ring grille 8 is set to be denser than that of the inner ring grille 7. The U-shaped siphon tube 12 is made of polytetrafluoroethylene tube material. The inner ring grille 7 and the outer ring grille 8 are designed to make the material flow more stable, which is beneficial to improving the sedimentation effect and making the supernatant clearer. In addition, it greatly restricts the laminar flow of the liquid, shortens the particle sedimentation distance, and greatly shortens the sedimentation time. Five overflow pipes 14 are fixedly connected to the outside of the outer shell 1, and each overflow pipe 14 communicates with the collection tank of the overflow weir 4. A discharge pipe 23 is fixedly connected to the bottom of the outer shell 1. The two ends of each U-shaped siphon tube 12 form a communicating vessel, and the supernatant liquid between the overflow weir 4 and the central barrel 3 is sucked into the collection tank surrounded by the overflow weir 4 and the inner wall of the outer shell 1 through the siphon principle, and then is led out by each overflow pipe 14.

[0027] Please refer to Figure 1 and Figure 7 , in this embodiment, a support frame one 15 is fixedly connected to the upper end of the top cover 2. The inner top of the support frame one 15 is rotatably connected to a cylinder 16. The movable end of the cylinder 16 is fixedly connected to a connecting rod 17. The lower end of the connecting rod 17 movably penetrates into the inner bottom side of the outer shell 1 and is fixedly connected to a scraper 18. Starting the cylinder 16 can push the bottom scraper 18 to contact the inner wall of the bottom side of the outer shell 1 through the connecting rod 17 to perform the next work of peeling off the salt crystals attached to the inner wall. A support frame two 19 is fixedly connected to the upper end of the support frame one 15. The inner top of the support frame two 19 is fixedly connected to a motor 20. The output shaft of the motor 20 passes through the top wall of the support frame one 15 and is fixedly connected to the cylinder 16. Starting the motor 20 drives the cylinder 16 to rotate, drives the scraper 18 to rotate through the connecting rod 17, and the scraper 18 peels off the salt crystals attached to the inner wall to reduce losses. Four support legs 21 are fixedly connected to the bottom of the outer shell 1, and a support plate 22 is fixedly connected to the bottom of each support leg 21. The support legs 21 support the device, and the support plates 22 expand the contact area with the ground and reduce the pressure on the ground bearing.

[0028] During operation, the material is introduced by the transversely arranged feeding pipe 9, and flows out at a reduced speed upward under the guidance of the semi-trumpet expansion pipe 10 and the water-blocking baffle 24, and is evenly distributed on the water-passing section of the core barrel 3. After settling in the center barrel 3, the heavier sediment or slag moves to the bottom, and the material continues to expand outward. Further, through the action of the inner ring grid 7 and the outer ring grid 8, the material flow stability is better, the sedimentation effect is improved, and the supernatant is clearer. Through the siphon action of each U-shaped siphon tube 12, The upper clear liquid is sucked into the collecting tank formed by the overflow weir 4 and the inner wall of the shell 1, and then discharged from the overflow pipes 14. The sediment or sludge settles to the bottom and is then discharged from the discharge pipe 23, thereby increasing the consistency of the material. When discharging at the bottom, the cylinder 16 can be started to push the bottom scraper 18 to contact the inner wall of the bottom side of the shell 1 through the connecting rod 17, and then the motor 20 is started to drive the cylinder 16 to rotate, and the scraper 18 is driven to rotate through the connecting rod 17. The scraper 18 peels off the salt crystals attached to the inner wall to reduce losses.

[0029] Through the above steps, a feed pipe 9 is provided for entering laterally, and the pipe is not in contact with the air, thereby avoiding the problem of wall clogging of the feed pipe 9. After the material enters the feed pipe 9, the water-blocking baffle 24 blocks and slows down the material, and the material flows upward under the guidance of the semi-trumpet expansion pipe 10, eliminating the inlet jet. The feed is evenly distributed on the water-passing section of the central barrel 3, reducing turbulence, avoiding serious impact on the sedimentation area and the entire thickener internal material, affecting the sedimentation effect, and avoiding the problem of flash evaporation and re-boiling after the top feed directly rushes into the thick layer. The reduction in flow rate also greatly reduces the risk of impact fluctuations of the material in the central barrel 3 affecting the sedimentation effect. The central barrel 3 provided plays the role of isolation and stabilization. The flow reduces the impact of materials, prevents and reduces material fluctuations, and improves the sedimentation effect. The central barrel 3 is connected to the atmosphere through the outer shell 1. When flash reboiling occurs, the pressure generated is released in time, which solves the problem of material gushing out from the exhaust port and the thickener bearing sealing ring. This is to solve the problem that the existing thickener adopts the top feeding method, which is easy to cause material compaction and block the pipeline, and has a serious impact on the sedimentation area and the entire thickener. The internal material has affected the sedimentation effect, and the pyrolysis high-temperature and high-pressure material will enter the central barrel of the thickener. Flash reboiling will occur, and the pressure generated by boiling evaporation cannot be released in time, resulting in material gushing out and affecting the normal operation of the equipment.

Claims

1. A carbonization purification pyrolysis liquid thickener, comprising a housing (1); characterized in that: It also includes a feeding pipe (9), a semi-trumpet expansion pipe (10) and a ventilation window (11); a top cover (2) is welded to the upper end of the outer shell (1); a center barrel (3) is welded to the center of the bottom of the top cover (2); an overflow weir (4) is welded to the upper end of the inner wall of the outer shell (1); a plurality of U-shaped siphon pipes (12) are fixedly connected to the outer side of the overflow weir (4); six fixing blocks (5) are fixedly connected to the bottom of the top cover (2) near the inner side in a circular array; six fixing blocks (6) are fixedly connected to the bottom of the six fixing blocks (5) near the outer side in a circular array; An inner ring grille (7) is fixedly connected, an outer ring grille (8) is fixedly connected to the bottom of the six fixed blocks (6), a feed pipe (9) is fixedly connected to the upper side of the left end of the outer shell (1), the right end of the feed pipe (9) sequentially passes through the overflow weir (4), the outer ring grille (8), the inner ring grille (7) and the central barrel (3), and one end of the feed pipe (9) extending to the inner side of the central barrel (3) is fixedly connected to a semi-trumpet expansion pipe (10), the upper end of the semi-trumpet expansion pipe (10) is open and the right end is fixedly connected to a water blocking baffle (24), and a plurality of ventilation windows (11) are provided on the outer side of the upper end of the central barrel (3).

2. A carbonization purification pyrolysis liquid thickener according to claim 1, characterized in that: The inner wall of the outer shell (1) is fixedly connected to six fixing plates (13) in a circular array, and one end of each fixing plate (13) facing the center of the outer shell (1) penetrates and is fixedly connected to the lower end of the inner ring grille (7), the outer ring grille (8) and the center barrel (3).

3. The carbonization purification pyrolysis liquid thickener according to claim 1, characterized in that: The grid arrangement of the outer ring grid (8) is denser than that of the inner ring grid (7), and the U-shaped siphon tube (12) is made of polytetrafluoroethylene tube material.

4. The carbonization purification pyrolysis liquid thickener according to claim 1, characterized in that: Five overflow pipes (14) are fixedly connected to the outside of the shell (1), each overflow pipe (14) is communicated with the collecting tank of the overflow weir (4), and a discharge pipe (23) is fixedly connected to the bottom of the shell (1).

5. The carbonization purification pyrolysis liquid thickener according to claim 1, characterized in that: The upper end of the top cover (2) is fixedly connected to a support frame (15), the inner top of the support frame (15) is rotatably connected to a cylinder (16), the movable end of the cylinder (16) is fixedly connected to a connecting rod (17), and the lower end of the connecting rod (17) is movably inserted into the inner bottom side of the outer shell (1) and is fixedly connected to a scraper (18).

6. A carbonization purification pyrolysis liquid thickener according to claim 5, characterized in that: The upper end of the support frame 1 (15) is fixedly connected to the support frame 2 (19), and the inner top of the support frame 2 (19) is fixedly connected to the motor (20), and the output shaft of the motor (20) passes through the top wall of the support frame 1 (15) and is fixedly connected to the cylinder (16).

7. The carbonization purification pyrolysis liquid thickener according to claim 1, characterized in that: Four supporting legs (21) are fixedly connected to the bottom of the housing (1), and a supporting plate (22) is fixedly connected to the bottom of each supporting leg (21).

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