Pre-concentration tank of sewage treatment plant

Abstract

The utility model provides a sewage treatment plant pre-concentration tank which comprises a tank body, a funnel is fixedly connected to the bottom of the tank body, a sand tank is fixedly connected to the bottom of the funnel, and a water inlet pipe and an overflow pipe are fixedly connected to the exteriors of the two sides of the tank body; and the scraping assembly comprises a transverse plate. The utility model relates to a pre-concentration tank for a sewage treatment plant, which is characterized in that a transmission motor drives a rotating rod to rotate, the rotating rod can drive a stirring rod to rotate, so that a flocculating agent in a tank body is in full contact with sewage, the flocculation effect is improved, meanwhile, the stirring rod can drive a spiral scraper to rotate when rotating, and when the spiral scraper rotates, the stirring rod can drive the spiral scraper to rotate. According to the sand pit, the spiral scraper is arranged on the inner wall of the pit body, silt attached to the inner wall of the pit body can be scraped, meanwhile, the scraped silt can be conveyed downwards when the spiral scraper rotates, the scraped silt can rapidly enter the bottom of the pit body, the current silt remaining amount in the sand pit can be conveniently observed through the visual window, and the silt in the sand pit can be conveniently cleaned in time.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment, and in particular relates to a pre-concentration tank of a sewage treatment plant. Background Art

[0002] The food industry, pharmaceutical industry, electronics industry, electroplating industry, etc. all require a large amount of water, and in order to comply with national environmental protection requirements, their industrial water needs to be treated as sewage. In the sewage treatment process, a concentration tank is generally set up. The concentration tank is mainly used to concentrate the sewage, but a large amount of sludge will be produced during the concentration process.

[0003] The existing authorization number is CN208327489U, which discloses a new type of sewage separation and concentration tank, including a tank body, a filter plate located in the tank body, and a scraper mechanism; the scraper mechanism includes an upper pressure plate, a lower scraper, and a pull rod, the lower surface of the upper pressure plate is fixedly connected to the end of the pull rod, the upper surface of the lower scraper is fixedly connected to the end of the pull rod, the upper pressure plate and the lower scraper are arranged in parallel and are located on the same side of the pull rod, the filter plates are symmetrically arranged, and a slide groove for the pull rod to slide is arranged between the two filter plates, the upper pressure plate is located above the filter plate, the lower scraper is located below the filter plate, and the lower surface of the lower scraper contacts the bottom surface of the tank body. The setting of the scraper mechanism can clean the sludge in the concentration tank at any time, with a simple structure and convenient operation. However, the above-mentioned new sewage separation and concentration tank cannot drain the scraped mud downward when scraping, so that the mud and sand are still attached to the inner wall after scraping and cannot sink to the bottom quickly for collection, resulting in low efficiency. Therefore, it is necessary to provide a sewage treatment plant pre-concentration tank to solve the above problems. Utility Model Content

[0004] The technical content of the utility model is to provide a pre-concentration tank for a sewage treatment plant.

[0005] In order to solve the above problems, the utility model provides a pre-concentration tank of a sewage treatment plant, comprising: a tank body, a funnel is fixedly connected to the bottom of the tank body, a sand pool is fixedly connected to the bottom of the funnel, and an inlet pipe and an overflow pipe are fixedly connected to the outside of the two sides of the tank body; a scraping assembly, the scraping assembly includes a horizontal plate, the horizontal plate is clamped on the top of the tank body, and a rotating rod is driven to rotate by a transmission motor, and the rotating rod can drive a stirring rod to rotate, so that the flocculant and sewage in the tank body are fully in contact, thereby improving the flocculation effect, and at the same time, when the stirring rod rotates, it will drive a spiral scraper to rotate, and when the spiral scraper rotates, it will scrape off the mud and sand attached to the inner wall of the tank body, and at the same time, when the spiral scraper rotates, it will also transport the scraped mud and sand downward, so that the scraped mud and sand can quickly enter the bottom of the tank body.

[0006] As a further solution of the utility model, the scraping assembly also includes a transmission motor, which is fixedly connected to the top of the horizontal plate. A control panel is provided inside the horizontal plate. A rotating rod is fixedly connected to one end of the output shaft of the transmission motor. The control panel can control the rotation rate of the transmission motor.

[0007] As a further solution of the utility model, the rotating rod extends to the inside of the pool body, and the outside of the rotating rod is evenly and fixedly connected with a stirring rod. The rotating rod drives the stirring rod to rotate, which can fully stir and fuse the flocculant and sewage inside the pool body.

[0008] As a further solution of the utility model, a spiral scraper is fixedly connected to the outside of the stirring rod, and the spiral scraper can scrape off the mud and sand attached to the inner wall of the pool body, and at the same time, the spiral scraper can also transport the scraped mud and sand downward when rotating.

[0009] As a further solution of the utility model, two fixing plates are fixedly connected to the bottom of the transverse plate, and knobs are rotatably connected inside the two fixing plates. The knobs can be displaced along the inside of the fixing plates by rotation.

[0010] As a further solution of the present invention, a clamping block is fixedly connected to the end of the knob, and the clamping block is in a ring shape. The clamping block can be squeezed outside the pool body so that the entire cross plate is limited to the top of the pool body.

[0011] As a further solution of the utility model, a mud pumping pipe is fixedly connected to the outside of the sand pool, and a pump body is fixedly connected to the inside of the mud pumping pipe. The pump body can enable the mud pumping pipe to pump out the sand and mud inside the sand pool.

[0012] As a further solution of the present invention, a viewing window is arranged on the outside of the sand pool. The viewing window is made of tempered glass and can be used to observe the current amount of sediment remaining in the sand pool.

[0013] In summary, the utility model includes at least the following beneficial technical effects:

[0014] First, the utility model records that the rotating rod is driven to rotate by a transmission motor, and the rotating rod can drive the stirring rod to rotate, so that the flocculant and sewage in the pool body are fully in contact, thereby improving the flocculation effect. At the same time, when the stirring rod rotates, it will drive the spiral scraper to rotate. When the spiral scraper rotates, it will scrape off the mud and sand attached to the inner wall of the pool body. At the same time, when the spiral scraper rotates, it will also transport the scraped mud and sand downward, so that the scraped mud and sand can quickly enter the bottom of the pool body.

[0015] Second, the utility model records a pre-concentration tank of a sewage treatment plant, which records a visual window for convenient observation of the current sediment residue inside the sand tank, so as to facilitate timely cleaning of the sediment inside the sand tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the external structure of a pre-concentration tank of a sewage treatment plant according to the utility model;

[0018] Figure 2 This is a schematic diagram of the external structure of a pre-concentration tank of a sewage treatment plant from the left side according to the utility model;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of a pre-concentration tank in a sewage treatment plant according to the utility model when viewed from above;

[0020] Figure 4 The utility model is a schematic diagram of the structure of a connecting plate and an extension plate of a pre-concentration tank in a sewage treatment plant.

[0021] Figure numerals: 1, pool body; 2, funnel; 3, sand pool; 4, viewing window; 5, mud suction pipe; 6, pump body; 7, water inlet pipe; 8, overflow pipe; 9, horizontal plate; 10, transmission motor; 11, rotating rod; 12, stirring rod; 13, spiral scraper; 14, fixing plate; 15, knob; 16, block. DETAILED DESCRIPTION

[0022] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 A pre-concentration tank of a sewage treatment plant comprises: a tank body 1, a funnel 2 is fixedly connected to the bottom of the tank body 1, a sand pool 3 is fixedly connected to the bottom of the funnel 2, and an inlet pipe 7 and an overflow pipe 8 are fixedly connected to the outside of the two sides of the tank body 1; a scraping assembly, the scraping assembly comprises a horizontal plate 9, the horizontal plate 9 is clamped with the top of the tank body 1, and a rotating rod 11 is driven to rotate by a transmission motor 10, and the rotating rod 11 can drive a stirring rod 12 to rotate, so that the flocculant and sewage inside the tank body 1 are fully in contact, and the flocculation effect is improved. At the same time, when the stirring rod 12 rotates, it will drive a spiral scraper 13 to rotate. When the spiral scraper 13 rotates, the silt attached to the inner wall of the tank body 1 will be scraped off. At the same time, when the spiral scraper 13 rotates, the scraped silt will be transported downward, so that the scraped silt can quickly enter the bottom of the tank body 1.

[0023] The scraping assembly also includes a transmission motor 10, which is fixedly connected to the top of the horizontal plate 9. A control panel is provided inside the horizontal plate 9. A rotating rod 11 is fixedly connected to one end of the output shaft of the transmission motor 10. The control panel can control the rotation speed of the transmission motor 10.

[0024] The rotating rod 11 extends to the inside of the tank body 1, and the outside of the rotating rod 11 is evenly and fixedly connected with a stirring rod 12. The rotating rod 11 drives the stirring rod 12 to rotate, so as to fully stir and fuse the flocculant and sewage inside the tank body 1;

[0025] The outside of the stirring rod 12 is fixedly connected with a spiral scraper 13, which can scrape away the silt attached to the inner wall of the tank body 1, and at the same time, the spiral scraper 13 can also transport the scraped silt downward when rotating;

[0026] The bottom of the horizontal plate 9 is fixedly connected to two fixing plates 14, and the insides of the two fixing plates 14 are rotatably connected to knobs 15, and the knobs 15 can be moved along the inside of the fixing plates 14 by rotating;

[0027] The end of the knob 15 is fixedly connected with a clamping block 16, which is in a ring shape. The clamping block 16 can be squeezed outside the pool body 1, so that the entire horizontal plate 9 is limited to the top of the pool body 1;

[0028] The outside of the sand pool 3 is fixedly connected with a mud pumping pipe 5, and the inside of the mud pumping pipe 5 is fixedly connected with a pump body 6, and the pump body 6 can enable the mud pumping pipe 5 to pump out the sand and mud inside the sand pool 3;

[0029] It should be noted that the utility model drives the rotating rod 11 to rotate through the transmission motor 10, and the rotating rod 11 can drive the stirring rod 12 to rotate, so that the flocculant and sewage inside the pool body 1 are fully in contact, thereby improving the flocculation effect. At the same time, when the stirring rod 12 rotates, it will drive the spiral scraper 13 to rotate. When the spiral scraper 13 rotates, it will scrape off the mud and sand attached to the inner wall of the pool body 1. At the same time, when the spiral scraper 13 rotates, it will also transport the scraped mud and sand downward, so that the scraped mud and sand can quickly enter the bottom of the pool body 1.

[0030] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 A pre-concentration tank of a sewage treatment plant, a viewing window 4 is arranged outside the sand tank 3, the viewing window 4 is made of tempered glass, and the viewing window 4 can be used to observe the current sediment residue inside the sand tank 3;

[0031] It should be noted that the present invention can facilitate observation of the current amount of sediment remaining in the sand pool 3 through the viewing window 4, and can facilitate timely cleaning of the sediment in the sand pool 3.

[0032] Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations or direct or indirect applications may be made to these embodiments without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the attached claims and their equivalents, which are equally included in the scope of patent protection of the present invention.

Claims

1. A pre-concentration tank in a sewage treatment plant, characterized in that: include: A pool body (1), wherein a funnel (2) is fixedly connected to the bottom of the pool body (1), a sand pool (3) is fixedly connected to the bottom of the funnel (2), and a water inlet pipe (7) and an overflow pipe (8) are fixedly connected to the outside of both sides of the pool body (1); A scraping assembly, the scraping assembly comprising a transverse plate (9), the transverse plate (9) being clamped on the top of a pool body (1), the scraping assembly also comprising a transmission motor (10), the transmission motor (10) being fixedly connected to the top of the transverse plate (9), a control panel being arranged inside the transverse plate (9), one end of the output shaft of the transmission motor (10) being fixedly connected to a rotating rod (11), the rotating rod (11) extending into the interior of the pool body (1), the outside of the rotating rod (11) being evenly fixedly connected to a stirring rod (12), the outside of the stirring rod (12) being fixedly connected to a spiral scraper (13).

2. A pre-concentration tank for a sewage treatment plant according to claim 1, characterized in that: Two fixing plates (14) are fixedly connected to the bottom of the transverse plate (9), and knobs (15) are rotatably connected inside the two fixing plates (14).

3. A pre-concentration tank for a sewage treatment plant according to claim 2, characterized in that: The end of the knob (15) is fixedly connected with a clamping block (16), and the clamping block (16) is in a ring shape.

4. A pre-concentration tank for a sewage treatment plant according to claim 1, characterized in that: The outside of the sand pool (3) is fixedly connected to a mud pumping pipe (5), and the inside of the mud pumping pipe (5) is fixedly connected to a pump body (6).

5. A pre-concentration tank for a sewage treatment plant according to claim 1, characterized in that: A viewing window (4) is arranged outside the sand pool (3), and the viewing window (4) is made of tempered glass.

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