Oil-containing phosphorite gushing water decoloration and oil removal pool

Abstract

The utility model relates to an oil-containing phosphorite gushing water decoloration and oil removal pool which comprises a pool body, an inner cavity of the pool body is divided into a dosing area and an oil removal area by a vertical partition plate, a water inlet is formed in the top of the side, away from the partition plate, of the dosing area, and a water outlet is formed in the upper portion of the side, away from the partition plate, of the oil removal area. A water inlet channel communicated with the dosing area and the oil removal area is arranged at the bottom of the partition plate; an aeration mechanism is arranged at the bottom of the oil removal area, and an oil scraping mechanism is arranged at the top of the oil removal area. According to the utility model, the decolorizing agent is added into the dosing area, so that the chromaticity of the wastewater can be eliminated, and meanwhile, the decolorizing agent and the wastewater can be fully and uniformly mixed by aerating the wastewater. Besides, during aeration, light scum and oil in the wastewater can float up to the liquid level of the wastewater under the action of bubbles, the turbidity of the wastewater is reduced, the oil and scum on the surface of the wastewater are scraped by the oil scraping mechanism, the pollutant components are reduced, and the quality of effluent is improved after subsequent flocculent precipitation and filtration.

Description

Technical Field

[0001] The utility model belongs to the field of wastewater treatment equipment, in particular to a decolorization and oil removal pool for oil-containing phosphate ore gushing water. Background Art

[0002] The phosphate mine water has the characteristics of large discharge, poor water index and poor sensory properties. The specific water quality is related to the mining site, mining layer and mining method. Some phosphate mine water has high phosphorus content, high turbidity and contains a certain amount of oil. In the traditional treatment process, the large solid particles are first removed through the grit chamber, and then enter the four-stage reaction tank. The reagent is added to the four-stage reaction tank so that the phosphorus and suspended solids in the wastewater react with the reagent to generate precipitation. Finally, it enters the clear water tank after precipitation in the sedimentation tank. The monitoring equipment monitors the water quality of the clear water tank and the water is discharged after the water quality is qualified. The existing process has no oil pollution interception link, the color cannot be removed, and the effluent water quality is poor. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an oil-containing phosphate mine water decolorization and oil removal pool, which can remove pigments and oil in the phosphate mine water and improve the effluent water quality.

[0004] In order to solve the above problems, the technical solution adopted by the utility model is: an oil-containing phosphate ore decolorization and oil removal tank, including a tank body, the inner cavity of the tank body is divided into a dosing area and an oil removal area by a vertical partition, a water inlet is arranged at the top of the dosing area on a side away from the partition, a drain is arranged at the upper part of the side of the oil removal area away from the partition, and a water inlet channel connecting the dosing area and the oil removal area is arranged at the bottom of the partition; an aeration mechanism is arranged at the bottom of the oil removal area, and an oil scraping mechanism is arranged at the top of the oil removal area.

[0005] Furthermore, the oil scraping mechanism comprises a movable bracket, a lifting mechanism is arranged on the movable bracket, the lifting mechanism is connected to a lifting frame, and a horizontal oil collecting pipe and a rotation driving mechanism for driving the oil collecting pipe to rotate are arranged on the lifting frame;

[0006] A first scraper and a second scraper are fixedly provided on both sides of the oil collecting pipe, respectively; a first feed port is provided above the connection between the first scraper and the oil collecting pipe, and a second feed port is provided above the connection between the second scraper and the oil collecting pipe; when the rotating driving mechanism drives the oil collecting pipe to rotate to a first oil scraping angle, an end of the first scraper away from the oil collecting pipe is lower than the first feed port, and an end of the second scraper away from the oil collecting pipe is higher than the second feed port; when the rotating driving mechanism drives the oil collecting pipe to rotate to a second oil scraping angle, an end of the second scraper away from the oil collecting pipe is lower than the second feed port, and an end of the first scraper away from the oil collecting pipe is higher than the first feed port.

[0007] Furthermore, the lifting frame is provided with a detection element for detecting the distance from the lifting frame to the wastewater liquid level, and the detection element and the lifting mechanism are both connected to a controller.

[0008] Furthermore, the detection element is a laser rangefinder.

[0009] Furthermore, a fixed ring plate is provided at one end of the oil collecting pipe, a slider is detachably connected to the inner side of the fixed ring plate, the slider is slidably matched with the oil collecting pipe, and a detachable plug is provided at one end of the oil collecting pipe.

[0010] Furthermore, the rotation driving mechanism is a stepping motor.

[0011] Furthermore, the lifting mechanism is a hydraulic cylinder.

[0012] Furthermore, a drug adding mechanism is arranged above the drug adding area.

[0013] The utility model has the following beneficial effects: the utility model can eliminate the chromaticity of wastewater by adding a decolorizing agent to the dosing area, and at the same time, by aerating the wastewater, it can ensure that the decolorizing agent and the wastewater are fully and evenly mixed. In addition, during aeration, light scum and oil in the wastewater can float to the surface of the wastewater under the action of bubbles, reducing the turbidity of the wastewater, and the oil and scum on the surface of the wastewater are scraped off by the oil scraping mechanism to reduce the pollutant components. After subsequent flocculation sedimentation and filtration, the effluent water quality is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a main schematic diagram of the utility model;

[0015] Figure 2 yes Figure 1 A magnified schematic diagram of part A;

[0016] Figure 3 yes Figure 2 A schematic cross-sectional view of the middle BB;

[0017] Figure 4 This is a schematic diagram of the first scraper when scraping oil;

[0018] Figure 5 This is a schematic diagram of the second scraper when scraping oil;

[0019] Figure numerals: 2—tank body; 21—partition; 22—dosing area; 23—oil removal area; 24—water inlet channel; 25—aeration mechanism; 26—movable bracket; 27—lifting mechanism; 28—lifting frame; 29—oil collecting pipe; 210—rotational driving mechanism; 211—first scraper; 212—second scraper; 213—first feed inlet; 214—second feed; 215—detection element; 216—first controller; 217—fixed ring plate; 218—slider; 219—plug; 220—water inlet; 221—drain outlet; 222—dosing mechanism. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0021] The utility model is a decolorizing and oil-removing pool for oil-containing phosphate ore water. Figures 1 to 3 As shown, it includes a tank body 2, the inner cavity of the tank body 2 is divided into a dosing area 22 and an oil removal area 23 by a vertical partition 21, a water inlet 220 is arranged at the top of the side of the dosing area 22 away from the partition 21, a drain outlet 221 is arranged at the upper part of the side of the oil removal area 23 away from the partition 21, and a water inlet channel 24 connecting the dosing area 22 and the oil removal area 23 is arranged at the bottom of the partition 21; an aeration mechanism 25 is arranged at the bottom of the oil removal area 23, and an oil scraping mechanism is arranged at the top of the oil removal area 23.

[0022] The water inlet 220 of the dosing area 22 is arranged at the top of the dosing area 22 and at one end away from the partition 21. The drain outlet 221 of the degreasing area 23 is arranged at the top of the degreasing area 23 and at one end away from the partition 21, which can extend the flow path of the wastewater. A dosing mechanism 222 of a conventional structure can be arranged above the dosing area 22 to add a decolorant to the wastewater to eliminate the pigment in the wastewater. The decolorant can be an existing oxidative decolorant or an adsorption decolorant or other commonly used decolorants.

[0023] Wastewater enters the dosing area 22 from the water inlet 220 at the top of the dosing area 22, and decolorizing agent is added to the dosing area 22. Then the wastewater enters the oil removal area 23 through the wastewater inlet channel 24. Under the action of the aeration mechanism 25, the decolorizing agent and the wastewater are evenly mixed, and the scum and oil in the wastewater float to the surface of the wastewater. The oil scraper mechanism collects the scum and oil. The drain port 221 is below the wastewater liquid surface to prevent the oil and scum on the wastewater liquid surface from being discharged with the wastewater.

[0024] The oil in the wastewater is mixed in the water and is difficult to automatically float to the wastewater surface. Therefore, an aeration mechanism 25 is set at the bottom of the deoiling area 23. The aeration mechanism 25 can pass the outside air into the deoiling area 23, forming a large number of bubbles at the bottom of the deoiling area 23. The bubbles flow upward, which can drive the oil in the wastewater to float quickly to the wastewater surface. In addition, impurities such as scum in the wastewater will also float to the liquid surface with the bubbles, reducing the turbidity of the wastewater. At the same time, aeration can also promote the decolorant and the wastewater to be fully and evenly mixed to ensure uniform decolorization. The aeration mechanism 25 can adopt an existing porous aeration disk.

[0025] The oil scraping mechanism can be any kind of oil scraping mechanism adopted by the existing oil separator. Preferably, the oil scraping mechanism of the utility model includes a movable bracket 26, and the movable bracket 26 can move horizontally back and forth. Specifically, guide rails can be set on the top surfaces on both sides of the oil removal and decolorization tank 2, and a group of rollers matching the guide rails can be set at the bottom of the movable bracket 26. At the same time, a movable motor is set on the movable bracket 26. When the movable motor rotates, it can drive the rollers to rotate, thereby driving the movable bracket 26 to move horizontally along the guide rails.

[0026] The movable bracket 26 is provided with a lifting mechanism 27, the lifting mechanism 27 is connected to a lifting frame 28, and the lifting frame 28 is provided with a horizontal oil collecting pipe 29 and a rotation driving mechanism 210 for driving the oil collecting pipe 29 to rotate. When the movable bracket 26 moves, it drives the lifting mechanism 27, the lifting frame 28, the oil collecting pipe 29 and other components to move horizontally synchronously, and the lifting mechanism 27 can drive the lifting frame 28, the rotation driving mechanism 210 and the oil collecting pipe 29 to rise and fall synchronously.

[0027] A first scraper 211 and a second scraper 212 are fixedly arranged on both sides of the oil collecting pipe 29, respectively. The first scraper 211 and the second scraper 212 can be welded to the oil collecting pipe 29. A first feed port 213 is arranged above the connection between the first scraper 211 and the oil collecting pipe 29, and a second feed port 214 is arranged above the connection between the second scraper 212 and the oil collecting pipe 29. When the rotating driving mechanism 210 drives the oil collecting pipe 29 to rotate to the first oil scraping angle, the first scraper 211 is moved. The first scraper 211 scrapes the oil, and the end of the first scraper 211 away from the oil collecting pipe 29 is lower than the first feed port 213, and the end of the second scraper 212 away from the oil collecting pipe 29 is higher than the second feed port 214; when the rotating drive mechanism 210 drives the oil collecting pipe 29 to rotate to the second oil scraping angle, the second scraper 212 scrapes the oil, and the end of the second scraper 212 away from the oil collecting pipe 29 is lower than the second feed port 214, and the end of the first scraper 211 away from the oil collecting pipe 29 is higher than the first feed port 213.

[0028] In the utility model, the oil collecting pipe 29 has two oil scraping angles. At the first oil scraping angle, the first scraper 211 scrapes the oil, and at the second oil scraping angle, the second scraper 212 scrapes the oil. Therefore, when the oil collecting pipe 29 moves in one direction with the movable bracket 26, the oil collecting pipe 29 is at the first oil scraping angle, and when the oil collecting pipe 29 moves in another direction with the movable bracket 26, the oil collecting pipe 29 is at the second oil scraping angle. No matter which direction the oil collecting pipe 29 moves, it can scrape the oil, thereby improving the oil scraping efficiency. The oil scraping angle of the oil collecting pipe 29 is adjusted by the rotating drive mechanism 210. When the oil collecting pipe 29 moves to the end of the oil removal area 23, the rotating drive mechanism 210 drives the oil collecting pipe 29 to rotate the set angle. When the oil collecting pipe 29 rotates, it drives the first scraper 211 and the second scraper 212 to rotate synchronously, so that one of the scrapers leaves the wastewater liquid surface and the other scraper extends into the wastewater liquid surface.

[0029] When the first scraper 211 is scraping oil, the end of the first scraper 211 away from the oil collecting pipe 29 should extend into the wastewater, so that the oil and scum on the surface of the wastewater are above the first scraper 211. When the first scraper 211 moves, the oil and scum can flow along the first scraper 211 to the first feed port 213, then enter the oil collecting pipe 29 through the first feed port 213, and finally be discharged from the end of the oil collecting pipe 29. The end of the first scraper 211 away from the oil collecting pipe 29 is lower than the first feed port 213 to prevent a large amount of wastewater from flowing into the first feed port 213. Similarly, when the second scraper 212 scrapes the oil, the end of the second scraper 212 away from the oil collecting pipe 29 should extend into the wastewater, so that the oil and scum on the surface of the wastewater are above the second scraper 212. When the second scraper 212 moves, the oil and scum can flow along the second scraper 212 to the second feed port 214, and then enter the oil collecting pipe 29 through the second feed port 214.

[0030] Figure 4 It is a schematic diagram of the first scraper 211 scraping oil, the first scraper 211 extends into the wastewater, and the second scraper 212 is above the wastewater liquid level, and the second scraper 212 is inclined; Figure 5 2 is a schematic diagram of the second scraper 212 scraping oil, the second scraper 212 extends into the wastewater, the first scraper 211 is above the wastewater level, and the first scraper 211 is inclined. Since the oil and scum flow along the upper surface of the first scraper 211 or the second scraper 212 to the first feed port 213 or the second feed port 214 when scraping the oil, the oil and scum will remain on the upper surface of the first scraper 211 or the second scraper 212. After the scraping angle of the oil collecting pipe 29 is changed, the first scraper 211 or the second scraper 212 is in an inclined state, and the oil or scum remaining on the upper surface of the first scraper 211 or the second scraper 212 will slide along the first scraper 211 or the second scraper 212 to the first feed port 213 or the second feed port 214, and will not fall into the wastewater.

[0031] The lifting frame 28 is provided with a detection element 215 for detecting the distance from the lifting frame 28 to the wastewater surface. The detection element 215 and the lifting mechanism 27 are both connected to a first controller 216. The first controller 216 adjusts the height of the lifting frame 28 according to the detection result of the detection element 215, so that when the oil collecting pipe 29 rotates to the first scraping angle, the first feed port 213 is at the same height as the wastewater surface, and when the oil collecting pipe 29 rotates to the second scraping angle, the second feed port 214 is at the same height as the wastewater surface. The detection element 215 can be an existing laser rangefinder or other element, which can detect the distance from the detection element 215 to the wastewater surface and transmit the detection signal to the first controller 216. The first controller 216 calculates the height of the wastewater surface, and then controls the operation of the lifting mechanism 27 according to the calculation result. The lifting mechanism 27 can adjust the height of the lifting frame 28 and the oil collecting pipe 29 to ensure that the oil collecting pipe 29 is at a suitable height to better scrape the oil and scum on the surface of the wastewater.

[0032] In order to facilitate the cleaning of the scum and oil in the oil collecting pipe 29, a fixed ring plate 217 is provided at one end of the oil collecting pipe 29, and a slider 218 is detachably connected to the inner side of the fixed ring plate 217. The slider 218 is slidably matched with the oil collecting pipe 29, and a detachable plug 219 is provided at one end of the oil collecting pipe 29. The slider 218 can be connected to the fixed ring plate 217 by screws. During normal oil scraping, the slider 218 and the plug 219 seal both ends of the oil collecting pipe 29 to prevent the oil and scum in the oil collecting pipe 29 from being discharged from the end thereof. After scraping the oil for a period of time, the lifting frame 28 is driven by the lifting mechanism 27 to make the oil collecting pipe 29 rise above the wastewater liquid level, and then the plug 219 is removed, and a collection container is set below the port of the oil collecting pipe 29, and the connection between the slider 218 and the fixed ring plate 217 is released, and the slider 218 is pushed to move along the axial direction of the oil collecting pipe 29, so that the scum and oil in the oil collecting pipe 29 are pushed out, and the scum and oil fall into the collection container. When the scum and oil in the oil collecting pipe 29 are cleaned, the slide block 218 is reset and reconnected to the fixed ring plate 217, and then the plug 219 is installed to scrape the oil again.

[0033] The rotation driving mechanism 210 adopts a stepping motor, which is connected to the oil collecting pipe 29 through transmission parts such as gears and belts. The lifting mechanism 27 can adopt a hydraulic cylinder.

[0034] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. Oil-containing phosphate ore water decolorization and oil removal pool, characterized by: The tank body (2) comprises a tank body (2), wherein the inner cavity of the tank body (2) is divided into a dosing area (22) and an oil removal area (23) by a vertical partition (21); a water inlet (220) is arranged at the top of a side of the dosing area (22) away from the partition (21); a water outlet (221) is arranged at the top of a side of the oil removal area (23) away from the partition (21); a water inlet channel (24) connecting the dosing area (22) and the oil removal area (23) is arranged at the bottom of the partition (21); an aeration mechanism (25) is arranged at the bottom of the oil removal area (23); and an oil scraping mechanism is arranged at the top of the oil removal area (23); The oil scraping mechanism comprises a movable bracket (26), a lifting mechanism (27) is arranged on the movable bracket (26), the lifting mechanism (27) is connected to a lifting frame (28), and a horizontal oil collecting pipe (29) and a rotation driving mechanism (210) for driving the oil collecting pipe (29) to rotate are arranged on the lifting frame (28); A first scraper (211) and a second scraper (212) are fixedly arranged on both sides of the oil collecting pipe (29), respectively; a first feed port (213) is arranged above the connection between the first scraper (211) and the oil collecting pipe (29), and a second feed port (214) is arranged above the connection between the second scraper (212) and the oil collecting pipe (29); when the rotary drive mechanism (210) drives the oil collecting pipe (29) to rotate to a first oil scraping angle, the first scraper (211) moves away from the oil collecting pipe (29); One end away from the oil collecting pipe (29) is lower than the first feed inlet (213), and one end of the second scraper (212) away from the oil collecting pipe (29) is higher than the second feed inlet (214); when the rotary drive mechanism (210) drives the oil collecting pipe (29) to rotate to a second oil scraping angle, and one end of the second scraper (212) away from the oil collecting pipe (29) is lower than the second feed inlet (214), one end of the first scraper (211) away from the oil collecting pipe (29) is higher than the first feed inlet (213).

2. The decolorization and oil removal pool for oil-bearing phosphate ore water as claimed in claim 1, characterized in that: The lifting frame (28) is provided with a detection element (215) for detecting the distance between the lifting frame (28) and the wastewater liquid surface, and the detection element (215) and the lifting mechanism (27) are both connected to a controller (216).

3. The decolorization and oil removal pool for oil-containing phosphate ore water as claimed in claim 2, characterized in that: The detection element (215) is a laser rangefinder.

4. The decolorization and oil removal pool for oil-containing phosphate ore water as claimed in claim 2, characterized in that: A fixed ring plate (217) is provided at one end of the oil collecting pipe (29), a sliding block (218) is detachably connected to the inner side of the fixed ring plate (217), the sliding block (218) is slidably matched with the oil collecting pipe (29), and a detachable plug (219) is provided at one end of the oil collecting pipe (29).

5. The decolorization and oil removal pool for oil-containing phosphate ore water as claimed in claim 2, characterized in that: The rotation driving mechanism (210) is a stepping motor.

6. The decolorization and oil removal pool for oil-bearing phosphate ore water as claimed in claim 2, characterized in that: The lifting mechanism (27) is a hydraulic cylinder.

7. The decolorization and oil removal pool for oil-containing phosphate ore water as claimed in claim 1, characterized in that: A drug adding mechanism (222) is provided above the drug adding area (22).

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