An oil-containing sewage pretreatment device

Abstract

The utility model relates to sewage treatment technical field, and disclose an oily sewage pretreatment device, including base, the base top is provided with separation mechanism and mixing mechanism, the separation mechanism includes separation and removal part, through separation mechanism, utilize the air pump in separation part, air pump draws air, thereby the air is inputted separation pond through gas pipe, thereby generating bubble bubble and flocculation body float into dross, thereby starting waterproof air cylinder, and waterproof air cylinder drives the dross scraping plate to descend to the appropriate position under the action of slide bar, thereby starting the air cylinder, and the air cylinder promotes the dross scraping plate and removal part to slide on the surface of guide rod under the action of sliding block, thereby the dross is cleaned to the collection of separation pond right side, can effectively separate oil and sewage in sewage, collect and clean dross simultaneously, improve the removal effect of oil stain in sewage, guarantee the efficiency and quality of sewage treatment.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a pretreatment device for oily wastewater. Background Technology

[0002] The storage and electro-desalination processes of crude oil generate large amounts of refinery wastewater, which contains not only non-dissolved pollutants (such as floating oil, emulsified oil, and suspended solids) but also high concentrations of dissolved pollutants: easily degradable small-molecule organic pollutants and difficult-to-degrade large-molecule organic pollutants. The organic pollutants are mainly complex, strongly polar heterocyclic compounds. Due to the high pollutant load and poor biodegradability of refinery wastewater, its microbial degradation is extremely difficult, and pretreatment is generally required before it can be discharged into wastewater treatment plants for treatment to meet standards.

[0003] Compared with existing technologies: If oil and wastewater cannot be effectively separated, a large amount of oil will remain in the wastewater, resulting in excessively high oil content. This will make it difficult for the wastewater to meet discharge standards or subsequent treatment requirements. In addition, if scum cannot be effectively collected and cleaned, it will accumulate in the treatment equipment or tank, which will not only occupy valuable space but may also interfere with the normal operation of the equipment and affect the effect of subsequent treatment.

[0004] Therefore, a pretreatment device for oily wastewater is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a pretreatment device for oily wastewater, which solves the technical problems of poor oil separation leading to a large amount of oil residue, resulting in excessive oil content in the wastewater, making it difficult to meet discharge or subsequent treatment requirements; and the problem of scum accumulating and clogging due to improper cleaning, occupying space and hindering equipment operation, thus affecting the effectiveness of subsequent treatment. The device achieves the purpose of separation and removal.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an oily wastewater pretreatment device, comprising a base, wherein a separation mechanism and a mixing mechanism are provided on the top surface of the base;

[0007] The separation mechanism includes a separation section and a removal section;

[0008] The removal section is located on the bottom surface of the separation section;

[0009] The mixing mechanism includes a placement section and a mixing section;

[0010] The mixing section is located on the inner side of the placement section.

[0011] Preferably, the separation section includes a separation tank located on the top surface of the base. A fixed baffle is provided on the inner side of the separation tank and is fixedly connected to the separation tank. A slag discharge pipe is provided on the right side of the fixed baffle and is connected to the separation tank.

[0012] Preferably, a drain pipe is provided on the front side of the slag discharge pipe, the drain pipe is connected to the separation tank, an air pump is provided on the rear side of the drain pipe, the air pump is fixedly connected to the top surface of the base, and an air supply pipe is provided on the top surface of the air pump, the air supply pipe extends through to the inner side of the separation tank.

[0013] Preferably, the removal section includes an L-shaped plate, which is fixedly connected to the left side of the separation tank. A cylinder is provided on the inner side of the L-shaped plate and is fixedly connected to the L-shaped plate. A straight plate is provided on the output end face of the cylinder and is fixedly connected to the cylinder. A slider is provided on the outer side of the straight plate and is fixedly connected to the straight plate.

[0014] Preferably, a guide rod is provided through the inner wall of each slider, the guide rod is slidably connected to the slider, a portal plate is provided on the outer side of the guide rod, the portal plate is fixedly connected to the top surface of the separation tank, and the portal plate is fixedly connected to the outer end face of the guide rod.

[0015] Preferably, a waterproof cylinder is provided on the inner side of the gate-shaped plate, the waterproof cylinder extends through to the bottom of the straight plate, a scraper is provided on the output end face of the waterproof cylinder, the scraper is fixedly connected to the waterproof cylinder, a sliding rod is provided on the top surface of the scraper, the sliding rod is fixedly connected to the scraper, the sliding rod extends through to the top of the straight plate, and the sliding rod is slidably connected to the straight plate. Through the separation part and the removal part in the separation mechanism, the separation and cleaning effect is achieved.

[0016] Preferably, the placement part includes a support frame, which is fixedly connected to the base. A reaction barrel is provided through the inner wall of the support frame, and a fixing plate is provided on the outer side of the reaction barrel, which is fixedly connected to the reaction barrel.

[0017] Preferably, the mixing section includes a second portal plate, which is fixedly connected to a fixed plate. A motor is provided on the inner side of the second portal plate and is fixedly connected to the second portal plate. A rotating rod is provided on the output end face of the motor and is fixedly connected to the motor. The rotating rod extends through to the bottom of the fixed plate and is rotatably connected to the inner wall of the fixed plate. A mixing plate is provided on the surface of the rotating rod. A switch valve is provided below the mixing plate and is connected to the discharge port of the reaction tank. A conveying pipe is provided at the bottom end face of the switch valve and is connected to the left end face of the separation tank. Through the placement section and the mixing section in the mixing mechanism, a mixing effect is achieved.

[0018] Compared with the prior art, the beneficial effects of this utility model are: this oily wastewater pretreatment device,

[0019] (1) Through the separation mechanism, the air pump in the separation section draws in air and inputs it into the separation tank through the air supply pipe, thereby generating bubbles. The bubbles attach to the flocs and float to form scum, thereby activating the waterproof cylinder. The waterproof cylinder drives the scraper to descend to the appropriate position under the action of the slide bar, thereby activating the cylinder. The cylinder pushes the scraper and the removal section to slide on the surface of the guide rod under the action of the slider, thereby cleaning the scum to the right side of the separation tank for collection. This can effectively separate oil and sewage in wastewater, and at the same time collect and clean the scum, improve the removal effect of oil in wastewater, and ensure the efficiency and quality of wastewater treatment.

[0020] (2) Through the mixing mechanism, the wastewater and the prepared catalyst are put into the reaction tank in the placement section, thereby starting the motor. The motor drives the rotating rod, which drives the mixing plate, thereby mixing the wastewater and the catalyst. After the mixture settles, the switch valve is opened, and the reacted wastewater and flocculent matter enter the separation tank through the conveying pipe. This can accelerate the chemical reaction between the catalyst and the wastewater, making the reaction more rapid and complete. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0022] Figure 2 This is a three-dimensional cross-sectional view of the overall structure of this utility model;

[0023] Figure 3 This is a three-dimensional cross-sectional view of the separation tank of the separation structure of this utility model;

[0024] Figure 4 This is a three-dimensional schematic diagram of the waterproof cylinder with a separate structure of this utility model;

[0025] Figure 5 This is a three-dimensional cross-sectional view of the overall hybrid structure of this utility model.

[0026] In the diagram: 1. Base; 2. Separation mechanism; 21. Separation section; 22. Removal section; 211. Separation tank; 212. Fixed baffle; 213. Slag discharge pipe; 214. Drainage pipe; 215. Air pump; 216. Air supply pipe; 221. L-shaped plate; 222. Cylinder; 223. Straight plate; 224. Sliding block; 225. Guide rod; 226. Portal plate one; 227. Waterproof cylinder; 228. Slag scraper; 229. Sliding rod; 3. Mixing mechanism; 31. Placement section; 32. Mixing section; 311. Support frame; 312. Reaction tank; 313. Fixed plate; 321. Portal plate two; 322. Motor; 323. Rotating rod; 324. Mixing plate; 325. Switch valve; 326. Conveying pipe. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1:

[0029] Given the current issues of ineffective oil separation leading to significant oil residue and excessive oil content in wastewater, making it difficult to meet discharge or subsequent treatment requirements; and the problem of improper scum removal causing accumulation and blockage, occupying space, hindering equipment operation, and affecting subsequent treatment effectiveness, please refer to [link to relevant documentation]. Figure 1 , Figure 2 , Figure 3 , Figure 4 This utility model provides a technical solution: an oily wastewater pretreatment device, including a base 1, with a separation mechanism 2 and a mixing mechanism 3 provided on the top surface of the base 1;

[0030] The separation mechanism 2 includes a separation section 21 and a removal section 22;

[0031] The removal section 22 is located on the bottom surface of the separation section 21;

[0032] The mixing mechanism 3 includes a placement section 31 and a mixing section 32;

[0033] The mixing section 32 is located on the inner side of the placement section 31.

[0034] The separation section 21 includes a separation tank 211, which is located on the top surface of the base 1. A fixed baffle 212 is provided on the inner side of the separation tank 211. The fixed baffle 212 is fixedly connected to the separation tank 211. A slag discharge pipe 213 is provided on the right side of the fixed baffle 212, and the slag discharge pipe 213 is connected to the separation tank 211.

[0035] A drain pipe 214 is provided in front of the slag discharge pipe 213. The drain pipe 214 is connected to the separation tank 211. An air pump 215 is provided behind the drain pipe 214. The air pump 215 is fixedly connected to the top surface of the base 1. An air supply pipe 216 is provided on the top surface of the air pump 215. The air supply pipe 216 extends through to the inner side of the separation tank 211.

[0036] The removal section 22 includes an L-shaped plate 221, which is fixedly connected to the left side of the separation tank 211. A cylinder 222 is provided on the inner side of the L-shaped plate 221 and is fixedly connected to the L-shaped plate 221. A straight plate 223 is provided on the output end face of the cylinder 222 and is fixedly connected to the cylinder 222. A slider 224 is provided on the outer side of the straight plate 223 and is fixedly connected to the straight plate 223.

[0037] Guide rods 225 are provided through the inner wall of slider 224. The guide rods 225 are slidably connected to slider 224. A gate-shaped plate 226 is provided on the outer side of guide rod 225. The gate-shaped plate 226 is fixedly connected to the top surface of separation tank 211 and the outer end face of guide rod 225.

[0038] A waterproof cylinder 227 is provided inside the gantry plate 226. The waterproof cylinder 227 extends through to the bottom of the straight plate 223. A scraper plate 228 is provided on the output end face of the waterproof cylinder 227. The scraper plate 228 is fixedly connected to the waterproof cylinder 227. A sliding rod 229 is provided on the top surface of the scraper plate 228. The sliding rod 229 is fixedly connected to the scraper plate 228. The sliding rod 229 extends through to the top of the straight plate 223. The sliding rod 229 is slidably connected to the straight plate 223.

[0039] Furthermore, in this embodiment, the separation mechanism 2 utilizes the air pump 215 in the separation section 21 to draw in air and input it into the separation tank 211 through the air supply pipe 216. When the air enters the separation tank 211, it forms bubbles in the water. As these bubbles rise, they adhere to the flocs in the wastewater. Due to the adhesion of the bubbles, the flocs that were originally submerged in the wastewater gain upward buoyancy and float to the surface, forming scum. After observing the formation of scum, the waterproof cylinder 227 is activated. The waterproof cylinder 227 drives the scraper plate 228 to descend to a suitable position under the action of the slide rod 229. The cylinder 222 is then activated, and it begins to push the scraper plate 228 and the removal section 22. Under the action of the slider 224, the scraper plate 228 and the removal section 22 slide on the surface of the guide rod 225. As the scraper plate 228 slides, it cleans the scum from the left side of the separation tank 211 to the right side for collection.

[0040] Furthermore, in this embodiment, the separation mechanism 2 utilizes the air pump 215 in the separation section 21 to draw in air, which is then fed into the separation tank 211 through the air supply pipe 216. This generates bubbles, which, along with the flocculent material, float to the surface and form scum. This activates the waterproof cylinder 227, which in turn drives the scraper plate 228 to descend to a suitable position under the action of the slide rod 229. This activates the cylinder 222, which pushes the scraper plate 228 and the removal section 22 to slide on the surface of the guide rod 225 under the action of the slider 224. This cleans the scum and collects it on the right side of the separation tank 211. This effectively separates oil and wastewater from the wastewater while collecting and cleaning the scum, improving the removal effect of oil in the wastewater and ensuring the efficiency and quality of wastewater treatment.

[0041] Example 2:

[0042] Please see Figure 1 , Figure 2 , Figure 5 Furthermore, based on Embodiment 1, the following is obtained: the placement part 31 includes a support frame 311, the support frame 311 is fixedly connected to the base 1, a reaction tank 312 is provided through the inner wall of the support frame 311, a fixing plate 313 is provided on the outer side of the reaction tank 312, and the fixing plate 313 is fixedly connected to the reaction tank 312.

[0043] The mixing section 32 includes a second portal plate 321, which is fixedly connected to a fixed plate 313. A motor 322 is provided on the inner side of the second portal plate 321 and is fixedly connected to the second portal plate 321. A rotating rod 323 is provided on the output end face of the motor 322 and is fixedly connected to the motor 322. The rotating rod 323 extends through to the bottom of the fixed plate 313 and is rotatably connected to the inner wall of the fixed plate 313. A mixing plate 324 is provided on the surface of the rotating rod 323. A switch valve 325 is provided below the mixing plate 324 and is connected to the discharge port of the reaction tank 312. A conveying pipe 326 is provided on the bottom end face of the switch valve 325 and is connected to the left end face of the separation tank 211.

[0044] Furthermore, in this embodiment, through the mixing mechanism 3, the wastewater and the pre-prepared catalyst are placed into the reaction tank 312 in the placement part 31. The motor 322 is started and starts to run. The motor 322 drives the rotating rod 323 to rotate. The rotating rod 323 further drives the mixing plate 324 to move. The mixing plate 324 fully mixes and stirs the wastewater and catalyst in the reaction tank 312 so that the two are in uniform contact. After the mixing and stirring are completed, the wastewater and catalyst are allowed to stand in the reaction tank 312 for a period of time so that the chemical reaction can proceed fully. After the mixing and standing for a period of time, the switch valve 325 is opened to connect the reaction tank 312 with the conveying pipe 326. The wastewater after the reaction and the generated flocculent matter enter the separation tank 211 through the conveying pipe 326.

[0045] Furthermore, in this embodiment, through the mixing mechanism 3, the wastewater and the prepared catalyst are placed into the reaction tank 312 in the placement part 31, thereby starting the motor 322. The motor 322 drives the rotating rod 323, which in turn drives the mixing plate 324, thereby mixing the wastewater and the catalyst. After the mixture settles, the switch valve 325 is opened, and the reacted wastewater and flocculent matter enter the separation tank 211 through the conveying pipe 326. This can accelerate the chemical reaction between the catalyst and the wastewater, making the reaction more rapid and complete.

[0046] In use, wastewater and pre-prepared catalyst are placed into the reaction tank 312 in the placement section 31 via the mixing mechanism 3. The motor 322 is started and begins to run, driving the rotating rod 323 to rotate. The rotating rod 323 further drives the mixing plate 324 to move. The mixing plate 324 thoroughly mixes and stirs the wastewater and catalyst in the reaction tank 312, ensuring uniform contact between the two. After mixing and stirring are completed, the wastewater and catalyst are allowed to stand still in the reaction tank 312 for a period of time to allow the chemical reaction to proceed fully. After a period of standing, the switch valve 325 is opened to connect the reaction tank 312 to the conveying pipe 326. The reacted wastewater and generated flocculent matter enter the separation tank 211 through the conveying pipe 326. The material entering the separation tank 211 is transported through the separation mechanism 2, using the air pump 215 in the separation section 21. The air pump 215 draws in air and inputs it into the separation tank 211 through the air supply pipe 216. When the air enters the separation tank 211, it forms bubbles in the water. As these bubbles rise, they adhere to the flocs in the wastewater. Due to the adhesion of the bubbles, the flocs that were originally submerged in the wastewater gain upward buoyancy and rise to the surface, forming scum. After observing the formation of scum, the waterproof cylinder 227 is activated. The waterproof cylinder 227 drives the scraper 228 to descend to the appropriate position under the action of the slide rod 229. The cylinder 222 is then activated, and the cylinder 222 begins to push the scraper 228 and the removal part 22. Under the action of the slider 224, the scraper 228 and the removal part 22 slide on the surface of the guide rod 225. As the scraper 228 slides, it cleans the scum from the left side of the separation tank 211 to the right side for collection.

[0047] It should be noted that the technologies used in the switch valve 325 and air pump 215 are already widely disseminated in the industry as publicly available technologies. Given the large number of models and specifications of the switch valve 325 and air pump 215, it is difficult to elaborate on the specific details of each model here.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An oily wastewater pretreatment device, comprising a base (1), characterized in that: The base (1) is provided with a separation mechanism (2) and a mixing mechanism (3) on its top surface; The separation mechanism (2) includes a separation section (21) and a removal section (22); The removal section (22) is located on the bottom surface of the separation section (21); The mixing mechanism (3) includes a placement part (31) and a mixing part (32); The mixing section (32) is located on the inner side of the placement section (31); The separation section (21) includes a separation tank (211), which is located on the top surface of the base (1). A fixed baffle (212) is provided on the inner side of the separation tank (211), which is fixedly connected to the separation tank (211). A slag discharge pipe (213) is provided on the right side of the fixed baffle (212), which is connected to the separation tank (211). The removal section (22) includes an L-shaped plate (221), which is fixedly connected to the left side of the separation tank (211). A cylinder (222) is provided on the inner side of the L-shaped plate (221), which is fixedly connected to the L-shaped plate (221). A straight plate (223) is provided on the output end face of the cylinder (222), which is fixedly connected to the cylinder (222). A slider (224) is provided on the outer side of the straight plate (223), which is fixedly connected to the straight plate (223). The placement part (31) includes a support frame (311), which is fixedly connected to the base (1). A reaction tank (312) is provided through the inner wall of the support frame (311), and a fixing plate (313) is provided on the outer side of the reaction tank (312). The fixing plate (313) is fixedly connected to the reaction tank (312). The mixing section (32) includes a second portal plate (321), which is fixedly connected to a fixed plate (313). A motor (322) is provided on the inner side of the second portal plate (321), and the motor (322) is fixedly connected to the second portal plate (321). A rotating rod (323) is provided on the output end face of the motor (322), and the rotating rod (323) is fixedly connected to the motor (322). The rotating rod (323) extends through to the fixed plate. Below the plate (313), the rotating rod (323) is rotatably connected to the inner wall of the fixed plate (313). A mixing plate (324) is provided on the surface of the rotating rod (323). A switch valve (325) is provided below the mixing plate (324). The switch valve (325) is connected to the discharge port of the reaction tank (312). A conveying pipe (326) is provided at the bottom end of the switch valve (325). The conveying pipe (326) is connected to the left end of the separation tank (211).

2. The oily wastewater pretreatment device according to claim 1, characterized in that: A drain pipe (214) is provided on the front side of the slag discharge pipe (213). The drain pipe (214) is connected to the separation tank (211). An air pump (215) is provided on the rear side of the drain pipe (214). The air pump (215) is fixedly connected to the top surface of the base (1). An air supply pipe (216) is provided on the top surface of the air pump (215). The air supply pipe (216) extends through to the inner side of the separation tank (211).

3. The oily wastewater pretreatment device according to claim 1, characterized in that: Guide rods (225) are provided through the inner wall of the slider (224). The guide rods (225) are slidably connected to the slider (224). A gate-shaped plate (226) is provided on the outer side of the guide rod (225). The gate-shaped plate (226) is fixedly connected to the top surface of the separation tank (211). The gate-shaped plate (226) is fixedly connected to the outer end face of the guide rod (225).

4. The oily wastewater pretreatment device according to claim 3, characterized in that: A waterproof cylinder (227) is provided on the inner side of the first gate plate (226). The waterproof cylinder (227) extends through to the bottom of the straight plate (223). A scraper plate (228) is provided on the output end face of the waterproof cylinder (227). The scraper plate (228) is fixedly connected to the waterproof cylinder (227). A sliding rod (229) is provided on the top surface of the scraper plate (228). The sliding rod (229) is fixedly connected to the scraper plate (228). The sliding rod (229) extends through to the top of the straight plate (223). The sliding rod (229) is slidably connected to the straight plate (223).

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