Petrochemical sewage treatment device

Abstract

The utility model relates to the technical field of sewage treatment, in particular to a petrochemical sewage treatment device. The device comprises a treatment tank. A partition plate is arranged at the bottom of the treatment tank; the treatment tank is divided into a reaction tank and a slag collecting tank by the partition plate. And the scum cleaning assembly is arranged on the upper side of the reaction tank and is used for scraping scum in the reaction tank into the scum collecting tank. And the scraper cleaning assembly is arranged on the upper side of the scum collecting tank and is used for scraping and cleaning scum adhered to the scum cleaning assembly. According to the utility model, the driving mechanism II is started to drive the threaded rod to rotate, so that the sliding block and the brush roll are driven to slide along the threaded rod, the brush roll is enabled to clean scum adhered to the scraper from top to bottom, the condition that the scum cannot be cleaned up forever due to the fact that the residual scum is brought back to a reaction tank by the scraper is avoided, and the cleaning quality is improved. And in the cleaning process, the brush roll continuously compresses the spring, so that the brush roll can be always attached to the scraper blade, the continuity of scum fishing and cleaning work is ensured, and the cleaning efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a petrochemical sewage treatment device. Background Art

[0002] The flotation process for petrochemical wastewater treatment is a complex but highly effective process, primarily used to remove suspended solids, colloids, and some organic matter from wastewater to reduce the burden of subsequent treatment. This process involves flotation treatment, where pre-treated wastewater is mixed with tiny bubbles released from dissolved air. These tiny bubbles adhere to flocs in the wastewater, forming a floating mass with a specific gravity less than that of water. Buoyancy then lifts the flotation mass to the surface, forming scum. This scum is then scraped off by a scraper into a scum collection tank, achieving solid-liquid separation.

[0003] However, in the process of cleaning the scum by the existing scraper, there is no mechanism for cleaning the scraper, which causes the scraper to bring the remaining scum back into the sewage, resulting in the scum never being cleaned up, greatly reducing the cleaning quality. Utility Model Content

[0004] Aiming at the problems existing in the background technology, a petrochemical wastewater treatment device is proposed.

[0005] The utility model proposes a petrochemical wastewater treatment device, including a treatment tank. A partition plate is provided at the bottom of the treatment tank; the partition plate divides the treatment tank into a reaction tank and a slag collection tank. A slag cleaning component is provided on the upper side of the reaction tank to scrape the slag in the reaction tank into the slag collection tank. And a scraper cleaning component is provided on the upper side of the slag collection tank to scrape and clean the slag adhered to the slag cleaning component. The slag cleaning component includes a scraper; a scraper cleaning component cooperates with the scraper to clean the scraper; a driving component that drives the scraper to move so that the scraper repeatedly scrapes and cleans the slag in the reaction tank; and an auxiliary component that keeps the scraper in contact with the scraper cleaning component during the process of the scraper cleaning component cleaning the scraper.

[0006] Preferably, the driving member includes a rotating shaft symmetrically arranged on the inner wall of the treatment tank; one end of one of the rotating shafts is connected to a driving mechanism, and gears are symmetrically provided on the side walls of the two rotating shafts; a tooth chain is commonly wound around the two gears located on the same side and is meshed with the tooth chain.

[0007] Preferably, a plurality of filter holes are provided on the scraper.

[0008] Preferably, the scraper is rotatably arranged between two tooth chains, and multiple groups are arranged around the tooth chains.

[0009] Preferably, the auxiliary part and the scraper are arranged on one side of the scraper in a one-to-one correspondence; the auxiliary part includes a fixed plate arranged on the tooth chain; a sleeve is connected to the end of the fixed plate facing the scraper; a sliding rod is slidably connected in the sleeve; a spring is connected between one end of the sliding rod and the fixed plate, and the other end is hinged to the scraper.

[0010] Preferably, the scraper cleaning assembly is arranged to be tilted downward as a whole.

[0011] Preferably, the scraper cleaning assembly includes a telescopic mechanism symmetrically arranged on the processing pool; the telescopic ends of the two telescopic mechanisms are connected to a connecting frame; the two connecting frames are connected to a slide plate, and are slidingly connected to a slide groove opened on the inner wall of the processing pool through the slide plate, and the two connecting frames are also rotatably connected to threaded rods respectively; one end of the two threaded rods is connected to a driving mechanism 2, and a slider is threadedly connected thereto; a brush roller is rotatably connected between the two sliders.

[0012] Preferably, an in-place sensor connected to the inner wall of the treatment tank is provided above the partition plate; the in-place sensor is electrically connected to the telescopic mechanism.

[0013] Compared with the prior art, the present invention has the following beneficial technical effects:

[0014] (1) The petrochemical wastewater treatment device starts the second driving mechanism to drive the threaded rod to rotate, thereby driving the slider and the brush roller to slide along the threaded rod, so that the brush roller cleans the scum adhering to the scraper from top to bottom, so that the brush roller can scrape the scum into the scum collection pool, thereby avoiding the scraper from bringing the remaining scum into the reaction pool when entering the reaction pool next time, resulting in the scum never being cleaned up, thereby improving the cleaning quality.

[0015] (2) In the petrochemical wastewater treatment device, the brush roller continuously compresses the spring during the cleaning process, so that the scum cleaning component does not stop and the scraper is continuously lifted upward. The brush roller can always be in contact with the scraper, ensuring the continuity of the scum salvage and cleaning work, thereby improving the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 This is a schematic diagram of the structure of the scum cleaning component of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the scraper and auxiliary parts of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the scraper cleaning component of the utility model.

[0020] Figure markings: 1. Treatment tank; 101. Partition plate; 2. Scum cleaning assembly; 21. Driving member; 211. Rotating shaft; 212. Driving mechanism 1; 213. Gear; 214. Tooth chain; 22. Scraper; 23. Auxiliary member; 231. Fixed plate; 232. Sleeve; 233. Slide rod; 234. Spring; 3. Scraper cleaning assembly; 31. Telescopic mechanism; 32. Connecting frame; 33. Slide plate; 34. Slide groove; 35. Threaded rod; 36. Driving mechanism 2; 37. Slider; 38. Brush roller; 4. In-position sensor. DETAILED DESCRIPTION

[0021] like Figure 1-4 As shown, the present invention proposes a petrochemical wastewater treatment device, comprising a treatment tank 1, a scum cleaning assembly 2 and a scraper cleaning assembly 3. A partition plate 101 is provided at the bottom of the treatment tank 1; the partition plate 101 divides the treatment tank 1 into a reaction tank and a scum collecting tank. The scum cleaning assembly 2 is arranged on the upper side of the reaction tank to scrape the scum in the reaction tank into the scum collecting tank. The scraper cleaning assembly 3 is arranged on the upper side of the scum collecting tank to scrape and clean the scum adhered to the scum cleaning assembly 2. The scum cleaning assembly 2 includes a scraper 22; the scraper cleaning assembly 3 cooperates with the scraper 22 to clean the scraper 22; a driving member 21 that drives the scraper 22 to move so that the scraper 22 repeatedly scrapes and cleans the scum in the reaction tank; and an auxiliary member 23 that keeps the scraper 22 in contact with the scraper cleaning assembly 3 during the process of the scraper cleaning assembly 3 cleaning the scraper 22.

[0022] Further explaining, the drive member 21 comprises rotating shafts 211 symmetrically mounted on the inner wall of the treatment tank 1. One end of one of the rotating shafts 211 is connected to a drive mechanism 1 212. Gears 213 are symmetrically mounted on the sidewalls of both rotating shafts 211. The drive mechanism 1 212 is a motor. A gear chain 214 is mounted between and meshes with the two gears 213 on the same side. The scrapers 22 are mounted rotatably between the two gear chains 214, and multiple groups of scrapers 22 are arranged around the gear chains 214. This reciprocating motion of the scrapers 22 allows multiple scrapers 22 to continuously clean scum from the wastewater, improving cleaning efficiency.

[0023] Further description, a plurality of filter holes are provided on the scraper 22 so that the scraper 22 can only scrape away the scum without taking away clean water as much as possible.

[0024] To further illustrate, the auxiliary component 23 is mounted on one side of the scraper 22, corresponding to the scraper 22. When the scraper cleaning assembly 3 is cleaning the scraper 22, the auxiliary component 23 is positioned on the side of the scraper 22 facing away from the scraper cleaning assembly 3. The auxiliary component 23 includes a fixed plate 231 mounted on a toothed chain 214. A sleeve 232 is connected to the end of the fixed plate 231 facing the scraper 22. A slide rod 233 is slidably connected within the sleeve 232. A spring 234 is connected between one end of the slide rod 233 and the fixed plate 231, and the other end is hingedly connected to the scraper 22. When the scraper 22 is cleaning scum, the water's resistance pushes the scraper 22 to maintain its upright position and compresses the spring 234. When the scraper 22 passes the partition plate 101, it detaches from the water, causing the spring 234 to return to its original position.

[0025] To further illustrate, the scraper cleaning assembly 3 is arranged as a whole at an angled downward. The scraper cleaning assembly 3 includes telescopic mechanisms 31 symmetrically arranged on the treatment tank 1. The telescopic mechanisms 31 are pneumatic cylinders. The telescopic ends of the two telescopic mechanisms 31 are each connected to a connecting frame 32. A slide 33 is connected to each connecting frame 32, which is slidably connected to a chute 34 provided on the inner wall of the treatment tank 1 via the slide 33. A threaded rod 35 is also rotatably connected to each connecting frame 32. One end of each threaded rod 35 is connected to a second drive mechanism 36, each of which is threadedly connected to a slider 37. The second drive mechanism 36 is a motor. A brush roller 38 is rotatably connected between the two sliders 37. The scraper cleaning assembly 3 can clean scum adhered to the scraper 22, allowing the brush roller 38 to scrape the scum into the scum collection tank. This prevents the scraper 22 from carrying residual scum into the reaction tank the next time it enters the reaction tank, resulting in the scum being permanently cleaned. This improves cleaning quality and also prevents scum from clogging the filter pores on the scraper 22. When the scraper cleaning assembly 3 cleans the scraper 22, the brush roller 38 first contacts the upper end of the scraper 22 and then rolls downward along the scraper 22. During the rolling process, the brush roller 38 continuously compresses the spring 234. This allows the scum cleaning assembly 2 to continue operating while the scraper 22 is continuously lifted upward, while the brush roller 38 remains in contact with the scraper 22. This ensures the continuity of the cleaning process and improves cleaning efficiency.

[0026] To further illustrate, a position sensor 4 connected to the inner wall of the treatment tank 1 is provided above the partition plate 101. The position sensor 4 is electrically connected to the telescopic mechanism 31. When the scraper 22 passes over the partition plate 101, the position sensor 4 sends a signal to control the extension end of the telescopic mechanism 31 to extend.

[0027] The working principle of the present invention is as follows: During operation, the first drive mechanism 212 is activated, driving the rotating shaft 211 and the gear 213 to rotate, thereby driving the toothed chain 214, which in turn drives the multiple scrapers 22 to move along the toothed chain 214, salvaging the scum and scraping it into the scum collection tank. When the scraper 22 passes the partition plate 101, the in-position sensor 4 is triggered. The in-position sensor 4 sends a signal to extend the telescopic end of the telescopic mechanism 31 and drive the connecting frame 32 to slide along the chute 34, causing the brush roller 38 to engage the upper end of the scraper 22. Then, the second drive mechanism 36 is activated to rotate the threaded rod 35, thereby driving the slider 37 and the brush roller 38 to slide along the threaded rod 35, causing the brush roller 38 to clean the scraper 22 from top to bottom. During the cleaning process, the brush roller 38 continuously compresses the spring 234, ensuring that the scum cleaning assembly 2 can maintain contact with the scraper 22 without stopping the machine and the scraper 22 continuously rising upward, ensuring the continuity of the cleaning process and improving cleaning efficiency.

[0028] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A petrochemical wastewater treatment device, characterized in that: include A processing pool (1); a partition plate (101) is provided at the bottom of the processing pool (1); the partition plate (101) divides the processing pool (1) into a reaction pool and a slag collection pool; A slag cleaning component (2) is arranged on the upper side of the reaction tank and scrapes the slag in the reaction tank into the slag collecting tank; and a scraper cleaning component (3) disposed on the upper side of the slag collecting pool for scraping and cleaning the slag adhering to the slag cleaning component (2); The scum cleaning assembly (2) includes a scraper (22); the scraper cleaning assembly (3) cooperates with the scraper (22) to clean the scraper (22); A driving member (21) drives the scraper (22) to move so that the scraper (22) repeatedly scrapes and cleans the scum in the reaction tank; and, during the process of the scraper cleaning assembly (3) cleaning the scraper (22), the scraper (22) is always in contact with the auxiliary component (23) of the scraper cleaning assembly (3); The driving member (21) comprises a rotating shaft (211) symmetrically arranged on the inner wall of the treatment tank (1); one end of one of the rotating shafts (211) is connected to a driving mechanism (212); gears (213) are symmetrically arranged on the side walls of the two rotating shafts (211); a tooth chain (214) is arranged between the two gears (213) on the same side and is meshed with the tooth chain (214); the scraper (22) is rotatably arranged between the two tooth chains (214), and multiple groups of gears are arranged around the tooth chain (214); The auxiliary member (23) and the scraper (22) are arranged on one side of the scraper (22) in a one-to-one correspondence; the auxiliary member (23) includes a fixed plate (231) arranged on a toothed chain (214); a sleeve (232) is connected to one end of the fixed plate (231) facing the scraper (22); a sliding rod (233) is slidably connected in the sleeve (232); a spring (234) is connected between one end of the sliding rod (233) and the fixed plate (231), and the other end is hinged to the scraper (22); The scraper cleaning assembly (3) comprises a telescopic mechanism (31) symmetrically arranged on the treatment tank (1); the telescopic ends of the two telescopic mechanisms (31) are both connected to a connecting frame (32); the two connecting frames (32) are both connected to a slide plate (33), and are slidably connected to a slide groove (34) provided on the inner wall of the treatment tank (1) through the slide plate (33); the two connecting frames (32) are also rotatably connected to a threaded rod (35); one end of the two threaded rods (35) is connected to a second driving mechanism (36), and a slider (37) is threadedly connected thereto; a brush roller (38) is rotatably connected between the two sliders (37).

2. A petrochemical wastewater treatment device according to claim 1, characterized in that: The scraper (22) is provided with a plurality of filter holes.

3. A petrochemical wastewater treatment device according to claim 1, characterized in that: The scraper cleaning assembly (3) is arranged to be tilted downward as a whole.

4. A petrochemical wastewater treatment device according to claim 1, characterized in that: An in-position sensor (4) connected to the inner wall of the treatment pool (1) is provided above the partition plate (101); the in-position sensor (4) is electrically connected to the telescopic mechanism (31).

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