Odor collection hood for NMP wastewater treatment tank

Abstract

The utility model relates to a kind of foul gas collection cover for NMP wastewater treatment pool, set on the pool body of circular structure, including stand, sleeve pipe, storage reel assembly and rotating umbrella rib assembly, stand is longitudinally arranged in the center of pool body, sleeve pipe is connected to the upper end of stand, sleeve pipe is hollow structure, the lower end lateral wall of sleeve pipe is equipped with several air inlet holes, suction pipe is connected to the upper end of sleeve pipe, sleeve pipe is equipped with the storage reel assembly and rotating umbrella rib assembly, storage reel assembly includes several storage pipes, reel and film, rotating umbrella rib assembly includes rotating ring and movable rod, rotating ring lateral wall is evenly distributed and is equipped with several movable rods corresponding to storage pipe, rotating ring is driven rotation by rotating motor mounted on sleeve pipe, so that film in storage reel assembly is unfolded or stored when rotating umbrella rib assembly rotates, to facilitate equipment overhaul;Then cooperate suction pipe to suck foul gas, reach the effect of reducing foul gas dissipation.

Description

Technical Field

[0001] This utility model relates to the technical field of wastewater treatment devices, and in particular to an odor collection hood for NMP wastewater treatment ponds. Background Technology

[0002] The lithium battery production process generates a large amount of NMP-containing wastewater, which needs to be recycled to reduce production costs. During the aeration, stirring, and sedimentation processes in NMP wastewater treatment ponds, a large amount of volatile organic compounds and other odorous gases are produced, posing a threat to the environment and human health. Therefore, it is necessary to use a cover to enclose the wastewater pond and absorb the odor to prevent its escape. Traditional odor collection hood structures are not easy to fold and store, hindering equipment maintenance and affecting cleaning operations within the pond. Existing foldable wastewater pond covers are all suitable for rectangular wastewater treatment pond structures and cannot be applied to circular wastewater treatment ponds. Therefore, it is necessary to improve upon these existing designs. Utility Model Content

[0003] To address the aforementioned problems, this utility model discloses an odor collection hood for NMP wastewater treatment ponds. It adopts a retractable conical hood structure to be suitable for circular ponds, facilitating equipment maintenance. It is used in conjunction with a negative pressure device to extract odors, thereby reducing odor dispersion.

[0004] The specific technical solution is as follows:

[0005] An odor collection hood for an NMP wastewater treatment tank, mounted on a circular tank body, includes a column, a sleeve, a receiving roll assembly, and a rotating umbrella assembly. The column is longitudinally positioned at the center of the tank body, with the sleeve fitted onto its upper end. The sleeve is hollow, with several air inlets on its lower sidewall. A suction pipe is connected to the upper end of the sleeve. The receiving roll assembly and rotating umbrella assembly are mounted on the sleeve. The receiving roll assembly includes several receiving tubes, a roll, and a membrane. The upper end of the receiving tube is connected to the sleeve and is evenly distributed along its circumference. The lower end of the receiving tube is connected and fixed to the upper end of the inner wall of the pool. The receiving tube has a structure that is thinner at the top and thicker at the bottom. A roller is arranged inside the receiving tube along its axial direction. The roller also has a structure that is thinner at the top and thicker at the bottom. The two ends of the roller are rotatably connected to the two ends of the receiving tube. The ends of the roller are connected to the inner wall of the receiving tube through an elastic element. The coating film is wound on the roller so that the roller automatically winds up under the action of the elastic element. An opening for the coating film to pass through is opened on the upper surface of the receiving tube along its axial direction.

[0006] The rotating umbrella rib assembly includes a rotating ring and movable rods. The rotating ring is rotatably mounted on the sleeve and located above the storage tube. Several movable rods, each corresponding to a storage tube, are evenly distributed circumferentially on the side wall of the rotating ring. The movable rods are inclined downward and located above the storage tube, with their bottoms connected and fixed to one end of the covering film. The rotating ring is driven to rotate by a rotary motor mounted on the sleeve, so that when the rotating umbrella rib assembly rotates, it causes the covering film in the storage roll assembly to unfold or retract.

[0007] Furthermore, the rotary motor is fixed to the outer wall of the sleeve pipe by a mounting base, and a drive wheel is horizontally provided on the output end of the rotary motor. The drive wheel and the rotating wheel are connected by a transmission belt.

[0008] Furthermore, a groove is formed on the inner wall of the rotating ring, and the groove is rotatably connected to the outer wall of the sleeve through a bearing. The lower end of the outer wall of the rotating ring is connected to the upper end of several movable rods, and a transmission groove for accommodating the transmission belt is formed on the upper end of the outer wall of the rotating ring.

[0009] Furthermore, a fixed seat is provided on the sleeve below the rotating ring, and the lower end of the side wall of the fixed seat is tapered and connected and fixed to the upper end of the sleeve; several evenly distributed support seats are provided on the upper end of the inner wall of the pool, and one end of the support seat is inclined and connected and fixed to the lower end of the sleeve.

[0010] Furthermore, the elastic element is a coil spring.

[0011] Furthermore, a slide rail is provided at the top of the side wall of the pool, and the lower end of each movable rod is slidably mounted on the slide rail by a slider.

[0012] Furthermore, the number of the storage tubes and movable rods is at least five.

[0013] The beneficial effects of this utility model are reflected in:

[0014] This utility model uses a rotating umbrella rib assembly and a storage roll assembly in combination. After the rotating umbrella rib assembly is rotated by a rotating motor to rotate a certain angle, the membrane inside the storage tube unfolds, thereby forming a cone-shaped cover at the top of the circular pool. This meets the requirement of a retractable cover for the circular wastewater treatment pool, facilitating equipment maintenance. Subsequently, a negative pressure exhaust pipe is used to extract odorous gases from inside the cover, thereby reducing the emission of odorous gases. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the odor collection hood after it has been unfolded in this utility model.

[0016] Figure 2 This is a schematic diagram of the odor collection hood after it has been stored in this utility model.

[0017] Figure 3 for Figure 2 A magnified view of a portion of the image.

[0018] Figure 4 This is a schematic diagram of the connection structure between the storage roll assembly, the rotating umbrella rib assembly, and the sleeve pipe in this utility model.

[0019] Figure 5 for Figure 4 A magnified view of a portion of the image.

[0020] Explanation of reference numerals in the attached drawings: 1. Pool body; 2. Column; 3. Sleeve pipe; 31. Air inlet; 32. Suction pipe; 4. Storage roll assembly; 41. Storage tube; 411. Opening; 42. Roller; 421. Spring; 43. Cover; 44. Fixing base; 45. Support base; 5. Rotating umbrella rib assembly; 51. Rotating ring; 511. Groove; 512. Transmission groove; 52. Movable rod; 53. Slide rail; 6. Rotary motor; 61. Drive wheel; 62. Transmission belt. Detailed Implementation

[0021] To make the technical solution of this utility model clearer and more explicit, the utility model will be further described below with reference to the accompanying drawings. Any solution derived by equivalent substitution and conventional reasoning of the technical features of this utility model falls within the protection scope of this utility model. The fixed connections and fixed settings mentioned in this utility model are all common connection methods in the mechanical field, including welding, bolt and nut connections, and screw connections.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Please see the appendix Figure 1-5 This embodiment provides an odor collection hood for an NMP wastewater treatment tank, which is installed on a circular tank body 1 and includes a column 2, a sleeve pipe 3, a storage roll assembly 4, and a rotating umbrella rib assembly 5. The column 2 is longitudinally arranged at the center of the tank body 1, and the upper end of the column 2 is sleeved with the sleeve pipe 3. The sleeve pipe 3 is a hollow structure, and several air inlets 31 are opened on the lower side wall of the sleeve pipe 3. The upper end of the sleeve pipe 3 is connected to a suction pipe 32, which is connected to an external negative pressure air pump, so as to draw in odor through the air inlets 31.

[0024] The sleeve tube 3 is equipped with a storage roll assembly 4 and a rotating umbrella rib assembly 5. The storage roll assembly 4 includes at least five storage tubes 41, a roller 42, and a covering film 43. The upper ends of the five storage tubes 41 are connected to the sleeve tube 3 and are evenly distributed along its circumference. The lower ends of the storage tubes 41 are respectively connected and fixed to the upper end of the inner wall of the pool body 1. The storage tubes 41 have a structure that is thinner at the top and thicker at the bottom. The roller 42 is arranged axially inside the storage tubes 41. The roller 42 also has a structure that is thinner at the top and thicker at the bottom. The two ends of the roller 42 are rotatably connected to the two ends of the storage tubes 41. A coil spring 421 is sleeved on the end of the roller 42. One end of the outer side of the coil spring 421 is connected to the inner wall of the storage tube 41, so that the roller 42 can automatically rewind under the action of the coil spring 421. The covering film 43 is wound on the roller 42. The covering film 43 has a fan-shaped structure. An opening 411 for the covering film 43 to pass through is opened on the upper surface of the storage tubes 41 axially. In this embodiment, because the roll 42 has a tapered structure at the top and a thicker structure at the bottom, the unfolding or retracting rate of the upper end of the film 43 is less than that of the lower end when the roll 42 rotates, thus meeting the requirements for unfolding and retracting the fan-shaped film 43. The film 43 used in this embodiment is made of polytetrafluoroethylene fiberglass cloth.

[0025] The rotating umbrella rib assembly 5 includes a rotating ring 51 and movable rods 52. The rotating ring 51 is rotatably mounted on the sleeve 3 and located above the receiving tube 41. Five movable rods 52, each corresponding to a receiving tube 41, are evenly distributed circumferentially on the side wall of the rotating ring 51. The movable rods 52 are inclined downwards and located above the receiving tube 41, with their bottoms connected and fixed to one end of the covering film 43. The rotating ring 51 is driven to rotate by a rotary motor 6 mounted on the sleeve 3, causing the rotating umbrella rib assembly 5 to unfold or retract the covering film 43 in the receiving roll assembly 4 when it rotates. When the covering film 43 is fully unfolded, it forms an odor collection hood with a pyramidal structure. In this invention, the odor collection hood cannot completely seal the circular pool 1, but by increasing the number of receiving tubes 41 and movable rods 52, a sealing effect of the odor collection hood can be provided, reducing odor escape.

[0026] In this embodiment, the rotary motor is fixed to the outer wall of the sleeve pipe 3 by the mounting base, and the output end of the rotary motor is provided with a drive wheel 61 horizontally. The drive wheel 61 and the rotating wheel are connected by a transmission belt 62.

[0027] In this embodiment, a groove 511 is formed on the inner wall of the rotating ring 51. The groove 511 is rotatably connected to the outer wall of the sleeve 3 through a bearing. The lower end of the outer wall of the rotating ring 51 is connected to the upper end of several movable rods 52. A transmission groove 512 for accommodating the transmission belt 62 is formed on the upper end of the outer wall of the rotating ring 51.

[0028] In this embodiment, a fixed seat 44 is provided on the sleeve 3 below the rotating ring 51. The lower end of the side wall of the fixed seat 44 is tapered and connected to the upper end of the sleeve 3. Several evenly distributed support seats 45 are provided on the upper end of the inner wall of the pool body 1. One end of the support seat 45 is inclined and connected to the lower end of the sleeve 3.

[0029] In this embodiment, a slide rail 53 is provided at the top of the side wall of the pool body 1, and the lower end of each movable rod 52 is slidably mounted on the slide rail 53 by a slider, thereby providing support and making the rotation of the movable rod 52 more stable.

[0030] The working principle of this utility model is as follows: When collecting odors, the rotary motor starts and drives the rotating ring 51 to rotate. At this time, the movable rod 52 moves and pulls out the membrane 43 inside the collection tube 41. When the movable rod 52 moves above the adjacent collection tube 41, the rotary motor stops. At this time, the membrane 43 inside each collection tube 41 is fully unfolded and forms an odor collection hood. The odor collection hood has a multi-faceted pyramidal structure. Then, the negative pressure suction pump is started, and the odor in the pool enters the sleeve pipe 3 and the suction pipe through the air inlet. Finally, the suctioned odor is centrally processed.

[0031] The above description is merely a preferred embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.

Claims

1. An odor collection hood for an NMP wastewater treatment pond, mounted on a circular pond body (1), characterized in that, The system includes a column (2), a sleeve (3), a storage roll assembly (4), and a rotating umbrella rib assembly (5). The column (2) is longitudinally positioned at the center of the pool body (1). The upper end of the column (2) is fitted with the sleeve (3). The sleeve (3) is a hollow structure. Several air inlets (31) are provided on the lower side wall of the sleeve (3). A suction tube (32) is connected to the upper end of the sleeve (3). The storage roll assembly (4) and the rotating umbrella rib assembly (5) are provided on the sleeve (3). The storage roll assembly (4) includes several storage tubes (41), a roll (42), and a membrane (43). The upper ends of the several storage tubes (41) are connected to the sleeve (5). 3) The lower ends of the collection tubes (41) are connected and fixed to the upper end of the inner wall of the pool body (1) and are evenly distributed along its circumference. The collection tubes (41) have a structure that is thinner at the top and thicker at the bottom. A roller (42) is set inside the collection tubes (41) along its axial direction. The roller (42) also has a structure that is thinner at the top and thicker at the bottom. The two ends of the roller (42) are rotatably connected to the two ends of the collection tubes (41). The ends of the roller (42) are connected to the inner wall of the collection tubes (41) through elastic elements. The film (43) is wound on the roller (42) so that the roller (42) automatically winds up under the action of the elastic elements. An opening (411) for the film (43) to pass through is opened on the upper surface of the collection tubes (41) along its axial direction. The rotating umbrella rib assembly (5) includes a rotating ring (51) and movable rods (52). The rotating ring (51) is rotatably mounted on the sleeve (3) and located above the storage tube (41). Several movable rods (52) corresponding to the storage tube (41) are evenly distributed along the circumference of the side wall of the rotating ring (51). The movable rods (52) are inclined downward and located above the storage tube (41), and the bottom of the movable rods (52) is connected and fixed to one end of the covering film (43). The rotating ring (51) is driven to rotate by a rotating motor (6) installed on the sleeve (3), so that when the rotating umbrella rib assembly (5) rotates, it drives the covering film (43) in the storage roll assembly (4) to unfold or store.

2. The odor collection hood for an NMP wastewater treatment pond as described in claim 1, characterized in that, The rotary motor (6) is fixed to the outer wall of the sleeve pipe (3) by the mounting base. The output end of the rotary motor is provided with a drive wheel (61) horizontally. The drive wheel (61) and the rotating wheel are connected by a transmission belt (62).

3. The odor collection hood for an NMP wastewater treatment pond as described in claim 2, characterized in that, A groove (511) is provided on the inner wall of the rotating ring (51). The groove (511) is rotatably connected to the outer wall of the sleeve (3) through a bearing. The lower end of the outer wall of the rotating ring (51) is connected to the upper end of several movable rods (52). A transmission groove (512) for accommodating the transmission belt (62) is provided on the upper end of the outer wall of the rotating ring (51).

4. The odor collection hood for an NMP wastewater treatment pond as described in claim 1, characterized in that, The sleeve (3) is provided with a fixed seat (44) below the rotating ring (51). The lower end of the side wall of the fixed seat (44) is tapered and connected to the upper end of the sleeve (3). Several evenly distributed support seats (45) are provided on the upper end of the inner wall of the pool (1). One end of the support seat (45) is inclined and connected to the lower end of the sleeve (3).

5. The odor collection hood for an NMP wastewater treatment pond as described in claim 1, characterized in that, The elastic element is a coil spring (421).

6. The odor collection hood for an NMP wastewater treatment pond as described in claim 3, characterized in that, The top of the side wall of the pool body (1) is provided with a slide rail (53), and the lower end of each movable rod (52) is slidably set on the slide rail (53) by a slider.

7. An odor collection hood for an NMP wastewater treatment pond as described in claim 1, characterized in that, The number of the storage tube (41) and the movable rod (52) is at least five.

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