Sealing device for anaerobic tank

Abstract

The utility model discloses a sealing device for an anaerobic tank, which comprises an anaerobic tank main body and a sealing cover arranged at the top of the anaerobic tank main body, and the anaerobic tank main body and the sealing cover are connected with a sealing assembly, and belongs to the technical field of anaerobic tanks. According to the utility model, after the sealing assembly is arranged and the sealing cover covers the top of the anaerobic tank main body, triple sealing can be carried out between the anaerobic tank main body and the sealing cover through the sealing fit between the propping ring and the sealing plate and the sealing fit between the inner wall and the outer wall of the inserting ring and the interior of the annular sealing ring, so that foul gas in the anaerobic tank main body can be effectively prevented from leaking; by arranging the reinforcing assembly, the sealing cover can automatically slide towards the anaerobic tank main body, after an insertion ring is inserted into an annular sealing ring, the sealing performance of the insertion ring and the annular sealing ring and the sealing performance between an abutting ring and a sealing plate can be improved, and compared with traditional multi-bolt fixing, the sealing device is more convenient to use and higher in practicability. The installation efficiency is higher, and the service life of the sealing piece is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of anaerobic tanks, in particular to a sealing device for anaerobic tanks. Background Art

[0002] An anaerobic tank is a bioreactor used to treat organic wastewater. It is mainly used to remove organic matter and pollutants such as nitrogen and phosphorus in wastewater. The microorganisms in the anaerobic tank work under anoxic conditions and can degrade organic matter in organic wastewater, produce gases such as methane, and convert pollutants such as nitrogen and phosphorus in wastewater into more stable forms. By carrying out biological treatment in an anaerobic tank, wastewater can be effectively purified, reducing the cost of wastewater treatment and pollution to the environment. Anaerobic tanks usually use sealed covers to maintain the anoxic state of the internal environment to promote the growth and metabolic process of anaerobic microorganisms. The sealed cover can also prevent the entry of oxygen to ensure that microorganisms can effectively degrade organic wastewater under anoxic conditions. The sealed cover also helps to control the atmosphere pressure and temperature inside the anaerobic tank, improve treatment efficiency and reduce odor release.

[0003] Traditional anaerobic tanks usually use sealing covers to maintain the anoxic state of the internal environment. Generally, the sealing cover is installed on a fixed bracket above the tank body for sealing. A rubber sealing strip or other sealing materials are used to seal the sealing cover and the fixed bracket to prevent oxygen penetration. Finally, multiple bolts are used to tighten the sealing cover. Traditional anaerobic tank sealing covers are usually fixed and installed by multiple bolts. Since the bolts cannot be installed and rotated at the same time, the seals will be unevenly stressed when bearing force and easily deformed, which may lead to a decrease in sealing performance and affect the normal operation and effect of the anaerobic tank. In addition, the installation of the sealing cover requires continuous tightening of the bolts, which also increases the workload of maintenance and management. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a sealing device for an anaerobic tank, which solves the problem that the traditional anaerobic tank sealing cover is usually fixed and installed by multiple bolts. Since the bolts cannot be installed and rotated at the same time, the sealing part will be unevenly stressed when bearing force and easily deformed. This may lead to a decrease in sealing performance and affect the normal operation and effect of the anaerobic tank. In addition, the installation of the sealing cover requires continuous tightening of the bolts, which also increases the workload of maintenance and management.

[0005] To achieve the above purpose, the utility model is implemented by the following technical solutions: a sealing device for an anaerobic tank, comprising an anaerobic tank body and a sealing cover installed on the top of the anaerobic tank body, the anaerobic tank body and the sealing cover are connected with a sealing component, and the outer surface of the anaerobic tank body is equidistantly installed with reinforcement components;

[0006] The sealing assembly includes a top ring fixedly connected to the bottom of the sealing cover, the bottom of the top ring is fixedly connected with a positioning ring, an insert ring and a butt ring from the outside to the inside, the top of the anaerobic tank body is fixedly connected with a bottom ring, a groove is provided inside the bottom ring, an annular sealing ring is fixedly installed inside the groove, the surface of the bottom ring is fixedly connected with a bottom plate, and the surface of the bottom plate is fixedly installed with a sealing plate.

[0007] Preferably, the reinforcement assembly includes a fixed block fixedly connected to the outer surface of the anaerobic tank body, a slot is opened inside the fixed block, a bearing is fixedly installed inside the fixed block, a threaded barrel is fixedly connected inside the bearing, a gear ring is fixedly sleeved on the outer surface of the threaded barrel, a stepper motor is fixedly installed inside the fixed block, a driving gear is fixedly connected to the output end of the stepper motor, the driving gear is meshingly connected to the surface of the gear ring, a screw is meshingly connected to the inner wall of the threaded barrel, the end of the screw is fixedly connected to a limiting block, and the top of the screw is fixedly connected to a positioning plate.

[0008] Preferably, the bottom of the positioning plate abuts against the upper surface of the top ring, the outer surface of the screw is movably connected to the inside of the slot, and a square groove matching the limit block is provided inside the fixing block.

[0009] Preferably, the top diameter of the card slot is smaller than the bottom diameter, the outer surface of the insert ring is sealably inserted into the interior of the card slot, and the bottom of the retaining ring is sealably fitted to the surface of the sealing plate.

[0010] Preferably, the bottom of the positioning ring fits on the top of the bottom ring, and the outer diameter of the top ring is greater than the outer diameter of the end of the sealing cover.

[0011] Preferably, the outer surfaces of the driving gear and the gear ring are both rotatably connected to the interior of the fixed block.

[0012] Beneficial Effects

[0013] The utility model provides a sealing device for an anaerobic tank. Compared with the prior art, it has the following beneficial effects:

[0014] 1. The sealing device for the anaerobic tank is provided with a sealing component. After the sealing cover is covered on the top of the anaerobic tank body, the sealing fit between the abutment ring and the sealing plate and the sealing fit between the inner and outer walls of the insert ring and the inside of the annular sealing ring can be performed to triple seal between the anaerobic tank body and the sealing cover, which can effectively prevent the leakage of malodorous gases in the anaerobic tank body and reduce the risk of environmental pollution and pollutant diffusion.

[0015] 2. The sealing device for the anaerobic tank can automatically slide the sealing cover toward the anaerobic tank body by setting a reinforcement component. After the plug ring is inserted into the annular sealing ring, the sealing performance between the plug ring and the annular sealing ring, as well as the sealing performance between the abutment ring and the sealing plate can be improved. It is more convenient than traditional multi-bolt fixing, has higher installation efficiency, and extends the service life of the seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the sealing component in the utility model;

[0018] Figure 3 It is a structural schematic diagram of the reinforcement component in the utility model.

[0019] In the figure: 1. anaerobic tank body; 2. sealing cover; 3. sealing assembly; 31. top ring; 32. positioning ring; 33. insert ring; 34. push ring; 35. bottom ring; 36. slot; 37. annular sealing ring; 38. bottom plate; 39. sealing plate; 4. reinforcement assembly; 41. fixing block; 42. slot; 43. bearing; 44. threaded barrel; 45. gear ring; 46. stepping motor; 47. driving gear; 48. screw; 481. limit block; 49. positioning plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3 The utility model provides a technical solution: a sealing device for an anaerobic tank, comprising an anaerobic tank body 1 and a sealing cover 2 installed on the top of the anaerobic tank body 1, a sealing component 3 is connected between the anaerobic tank body 1 and the sealing cover 2, and a reinforcement component 4 is equidistantly installed on the outer surface of the anaerobic tank body 1;

[0022] The sealing assembly 3 includes a top ring 31 fixedly connected to the bottom of the sealing cover 2, the outer diameter of the top ring 31 is larger than the outer diameter of the end of the sealing cover 2, the bottom of the top ring 31 is fixedly connected with a positioning ring 32, an insert ring 33 and a stop ring 34 from the outside to the inside, the top of the anaerobic tank body 1 is fixedly connected with a bottom ring 35, the bottom of the positioning ring 32 is fitted on the top of the bottom ring 35, a card slot 36 is opened inside the bottom ring 35, the top diameter of the card slot 36 is smaller than the bottom diameter, the outer surface of the insert ring 33 is sealed and plugged into the inside of the card slot 36, and an annular sealing ring 37 is fixedly installed inside the card slot 36. The surface of the bottom ring 35 is fixedly connected with a bottom plate 38, and a sealing plate 39 is fixedly installed on the surface of the bottom plate 38. The bottom of the ring 34 is sealed and fitted on the surface of the sealing plate 39. By setting the sealing assembly 3, after the sealing cover 2 is covered on the top of the anaerobic tank body 1, the ring 34 is sealed and fitted with the sealing plate 39, and the inner and outer walls of the insert ring 33 are sealed and fitted with the inside of the annular sealing ring 37, a triple seal can be performed between the anaerobic tank body 1 and the sealing cover 2, which can effectively prevent the leakage of malodorous gases in the anaerobic tank body 1 and reduce the risk of environmental pollution and the spread of pollutants.

[0023] The reinforcement component 4 includes a fixed block 41 fixedly connected to the outer surface of the anaerobic tank body 1, a slot 42 is provided inside the fixed block 41, a bearing 43 is fixedly installed inside the fixed block 41, a threaded cylinder 44 is fixedly connected inside the bearing 43, a toothed ring 45 is fixedly sleeved on the outer surface of the threaded cylinder 44, a stepper motor 46 is fixedly installed inside the fixed block 41, a controller for controlling the start and forward and reverse rotation of the stepper motor 46 is installed on the surface of the anaerobic tank body 1, a driving gear 47 is fixedly connected to the output end of the stepper motor 46, the driving gear 47 and the outer surface of the toothed ring 45 are both rotatably connected to the inside of the fixed block 41, the driving gear 47 is meshed with the surface of the toothed ring 45, and the inner wall of the threaded cylinder 44 is meshed with the rotation. A screw rod 48 is movably connected, and the outer surface of the screw rod 48 is movably connected to the inside of the slot 42. The end of the screw rod 48 is fixedly connected to a limit block 481. The inside of the fixed block 41 is provided with a square groove matching the limit block 481. The top of the screw rod 48 is fixedly connected to a positioning plate 49, and the bottom of the positioning plate 49 abuts against the upper surface of the top ring 31. By setting the reinforcement component 4, the sealing cover 2 can be automatically slid toward the direction of the anaerobic tank body 1. After the plug ring 33 is inserted into the annular sealing ring 37, the sealing performance between the plug ring 33 and the annular sealing ring 37, as well as the sealing performance between the abutting ring 34 and the sealing plate 39 can be improved. It is more convenient than traditional multi-bolt fixing, has higher installation efficiency, and extends the service life of the seal.

[0024] When installing the sealing cover 2, by starting the stepper motor 46, the stepper motor 46 drives the threaded cylinder 44 to rotate through the driving gear 47 and the gear ring 45, drives the screw 48 to slide upward, and after the positioning plate 49 is raised to the highest point, the sealing cover 2 is tilted down. When the top ring 31 is lower than the positioning plate 49, the sealing cover 2 is placed flat on the anaerobic tank body 1. At this time, the plug ring 33 is inserted into the annular sealing ring 37, and then the stepper motor 46 is started to drive the driving gear 47 to rotate, and the driving gear 47 is driven to rotate. The toothed ring 45 drives the threaded cylinder 44 to rotate in the opposite direction, so that the screw 48 drives the positioning plate 49 to slide downward. At this time, the positioning plate 49 abuts against the top of the top ring 31 and drives the top ring 31 to slide downward. Through the sealing fit between the abutting ring 34 and the sealing plate 39, and the sealing fit between the inner and outer walls of the insert ring 33 and the inside of the annular sealing ring 37, the anaerobic tank body 1 and the sealing cover 2 can be triple-sealed, which can effectively prevent the leakage of malodorous gases in the anaerobic tank body 1 and reduce the risk of environmental pollution and pollutant diffusion.

[0025] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A sealing device for an anaerobic tank, comprising an anaerobic tank body (1) and a sealing cover (2) mounted on the top of the anaerobic tank body (1), characterized in that: The anaerobic tank body (1) and the sealing cover (2) are connected by a sealing component (3), and the outer surface of the anaerobic tank body (1) is equidistantly provided with reinforcement components (4); The sealing assembly (3) comprises a top ring (31) fixedly connected to the bottom of the sealing cover (2); the bottom of the top ring (31) is fixedly connected with a positioning ring (32), an insert ring (33) and a stop ring (34) from the outside to the inside; the top of the anaerobic tank body (1) is fixedly connected with a bottom ring (35); a groove (36) is provided inside the bottom ring (35); an annular sealing ring (37) is fixedly installed inside the groove (36); a bottom plate (38) is fixedly connected to the surface of the bottom ring (35); and a sealing plate (39) is fixedly installed on the surface of the bottom plate (38).

2. The sealing device for an anaerobic tank according to claim 1, characterized in that: The reinforcement assembly (4) comprises a fixing block (41) fixedly connected to the outer surface of the anaerobic tank body (1), a slot (42) is provided inside the fixing block (41), a bearing (43) is fixedly installed inside the fixing block (41), a threaded barrel (44) is fixedly connected inside the bearing (43), a gear ring (45) is fixedly sleeved on the outer surface of the threaded barrel (44), a stepping motor (46) is fixedly installed inside the fixing block (41), a driving gear (47) is fixedly connected to the output end of the stepping motor (46), the driving gear (47) is meshingly connected to the surface of the gear ring (45), a screw rod (48) is meshingly connected to the inner wall of the threaded barrel (44), the end of the screw rod (48) is fixedly connected to a limiting block (481), and the top of the screw rod (48) is fixedly connected to a positioning plate (49).

3. The sealing device for an anaerobic tank according to claim 2, characterized in that: The bottom of the positioning plate (49) abuts against the upper surface of the top ring (31), the outer surface of the screw rod (48) is movably connected to the inside of the slot (42), and the inside of the fixing block (41) is provided with a square groove matching the limit block (481).

4. The sealing device for an anaerobic tank according to claim 1, characterized in that: The top diameter of the card slot (36) is smaller than the bottom diameter, the outer surface of the insert ring (33) is sealingly inserted into the interior of the card slot (36), and the bottom of the abutment ring (34) is sealingly attached to the surface of the sealing plate (39).

5. The sealing device for an anaerobic tank according to claim 1, characterized in that: The bottom of the positioning ring (32) fits on the top of the bottom ring (35), and the outer diameter of the top ring (31) is greater than the outer diameter of the end of the sealing cover (2).

6. The sealing device for an anaerobic tank according to claim 2, characterized in that: The outer surfaces of the driving gear (47) and the gear ring (45) are both rotatably connected to the interior of the fixed block (41).

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