An oil-containing wastewater treatment device

Abstract

The utility model discloses an oil -laden wastewater treatment device, specifically at related technical field of sewage treatment, including wastewater treatment device, the wastewater treatment device is including support station, the bottom fixedly connected with support leg of support station, the top fixedly connected with the containing box of support station, the fixedly connected with the connecting pump on the circumference of containing box one side, the one side of oil -water separation tank is provided with mixing tank, through motor starts, its fixed output shaft directly drives cylinder board to rotate, through cylinder board rotation simultaneously drive fixedly through the rotation rod and transmission wheel A on its circumference and rotate in step, thereby solved because only can rotate in fixed position, lead to the stable rigid vortex of fluid formation in groove, and the stirring range is limited and has a large number of dead zone. Partial area mixes unevenly, and grease and suspended matter can not fully condense or separate, finally lead to the problem of poor demulsification effect, separation efficiency drops significantly, and the oil content of effluent exceeds the standard.

Description

Technical Field

[0001] This utility model relates to the technical field of wastewater treatment, and more specifically, to an oily wastewater treatment device. Background Technology

[0002] Oily wastewater treatment equipment is a specialized environmental protection device designed to remove oily components from industrial or domestic wastewater. Its core function is to separate oil and water through physical, chemical, or biological methods, ensuring the treated water meets discharge or reuse standards. Its purpose is to prevent oil pollution from directly entering the natural environment, avoiding clogging sewers, polluting water bodies, and harming aquatic ecosystems. It also ensures the stable operation of subsequent wastewater treatment facilities, making it crucial for achieving wastewater treatment standards and environmental protection in industries such as machinery manufacturing, petrochemicals, and food and beverage. A search revealed that publication number CN216549937U discloses an oily wastewater treatment device, including a base frame, an oil-water separation tank, a first pipe, an oil outlet pipe, and a second pipe. The bottom of the oil-water separation tank is connected to the top of the base frame. The oil-water separation tank has a first cavity. The input end of the first pipe extends into and communicates with the first cavity, as does the input end of the oil outlet pipe. The oil outlet pipe is equipped with a first valve, and the output end of the second pipe extends into and communicates with the first cavity. The device also includes a mixing tank, a third pipe, a second valve, a motor, a coupling, a transmission rod, multiple agitator components, a first water pump, an activated carbon filter mechanism, and a coarsening mechanism. The bottom of the mixing tank is connected to the top of the base frame. This invention improves the treatment effect by pumping wastewater into the second cavity through the first water pump, opening the side door, adding an oil-water separator, adding liquid alkali to adjust the pH value of the wastewater, and finally adding polyacrylamide to aid flocculation and sedimentation.

[0003] In the process of realizing this utility model, the inventors discovered the following problems with the prior art: The stirring accessory of the oily wastewater treatment device described in the aforementioned patent can only rotate in a fixed position, causing the fluid in the tank to form a stable rigid vortex. This results in a limited stirring range and numerous dead zones. Uneven mixing occurs in some areas, preventing the oil and suspended solids from fully coagulating or separating, ultimately leading to poor demulsification, a significant decrease in separation efficiency, and excessive oil content in the effluent.

[0004] Therefore, an oily wastewater treatment device is proposed to address the above problems. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides an oily wastewater treatment device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an oily wastewater treatment device, comprising a wastewater treatment unit, the wastewater treatment unit including a support platform, a support leg fixedly connected to the bottom of the support platform, a container fixedly connected to the top of the support platform, a connecting pump fixedly connected to the circumferential surface of one side of the container, a support frame fixedly connected to the bottom of the connecting pump, an oil-water separation tank fixedly connected to the end of the connecting pump away from the container, a mixing tank provided on one side of the oil-water separation tank, a switch plate provided on the circumferential surface of the mixing tank, a rectangular box fixedly connected to the top of the mixing tank, a stirring rod provided inside the mixing tank, and a filter box provided on the side of the mixing tank away from the oil-water separation tank; it also includes an adjustment device for adjusting the stirring range of the stirring rod; and an auxiliary device for scraping the circumferential surface inside the mixing tank.

[0007] Preferably, the adjusting device includes a motor, a cylindrical plate fixedly connected to the fixed output shaft of the motor, a rotating rod passing through the circumferential surface of the cylindrical plate away from the motor and fixedly connected to the cylindrical plate, a rotating column slidably connected to the end of the rotating rod away from the cylindrical plate, a transmission wheel A passing through the circumferential surface of the cylindrical plate near the motor and fixedly connected to the cylindrical plate, a transmission belt sleeved on the circumferential surface of the transmission wheel A and fixedly connected to the transmission wheel A, a transmission wheel B sleeved on the end of the transmission belt away from the transmission wheel A and fixedly connected to the transmission belt, a fixed column passing through the interior of the transmission wheel B and fixedly connected to the transmission wheel B, a crank fixedly connected to one end of the fixed column, a pulley rotatably connected to the end of the crank away from the fixed column, a semi-circular ring plate slidably connected to the circumferential surface of the pulley, a sliding plate fixedly connected to one side of the semi-circular ring plate, a fixed plate slidably connected to the surface of the sliding plate, and a support rod passing through the surface of the fixed plate and fixedly connected to the fixed plate.

[0008] Preferably, one end of the motor is fixedly connected to the surface of one side inside the rectangular box. A bidirectional sliding groove is provided on the circumferential surface of the rotating column, and the end of the rotating rod away from the cylindrical plate is slidably connected to the bidirectional sliding groove on the circumferential surface of the rotating column. A sliding groove is provided inside the rotating column, and a stirring rod passes through the inside of the rotating column and is slidably connected to the rotating column. The end of the fixed column away from the crank passes through the surface of one side inside the rectangular box and is rotatably connected to the rectangular box. A guide groove is provided inside the semi-circular plate, and a pulley is slidably connected to the guide groove inside the semi-circular plate. A circular ring is provided at the bottom end of the sliding plate, and the circular ring is fitted on the top circumferential surface of the stirring rod and is rotatably connected to the stirring rod. Both ends of the support rod are fixedly connected to the surface inside the rectangular box.

[0009] Preferably, the auxiliary device includes a long plate, a spring is fixedly connected to one side of the long plate, a connecting plate is fixedly connected to the end of the spring away from the long plate, and a scraper is fixedly connected to the end of the connecting plate away from the spring.

[0010] Preferably, the side of the long plate away from the spring is fixedly connected to the support rod of the stirring rod, and a groove is formed on the surface of the long plate away from the stirring rod, and one end of the spring is set on the groove formed in the long plate.

[0011] Preferably, the end of the scraper away from the connecting plate is disposed on the inner circumferential surface of the mixing tank, and there are four scrapers distributed on the support rod of the stirring rod.

[0012] Preferably, the oil-water separator and the mixing tank, as well as the mixing tank and the filter tank, are all equipped with connecting pumps and are connected through the connecting pumps.

[0013] The technical effects and advantages of this utility model are as follows: Compared to existing technologies, this oily wastewater treatment device, after being started by a motor, directly drives a cylindrical plate to rotate via its fixed output shaft. The rotation of the cylindrical plate simultaneously drives a rotating rod and a transmission wheel A, which are fixed and run through its circumference, to rotate synchronously. This solves the problems caused by the inability to rotate in a fixed position, resulting in a stable rigid vortex within the tank, limited mixing range, and numerous dead zones. Furthermore, it addresses the issues of uneven mixing in some areas, preventing the sufficient coagulation or separation of oil and suspended solids, ultimately leading to poor demulsification, significantly reduced separation efficiency, and excessive oil content in the effluent.

[0014] Compared with existing technologies, this oily wastewater treatment device is fixedly connected to the support rod of the stirring rod via a long plate on the side away from the spring. When the stirring rod rotates, the long plate rotates synchronously. With the continuous rotation of the stirring rod, the scraper can effectively remove oil stains, viscous residues, or foam deposits adhering to the tank wall, thereby preventing the accumulation of dirt, maintaining the effective volume and heat transfer efficiency of the mixing tank, and avoiding secondary pollution caused by the shedding of accumulated substances. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the rectangular box of this utility model in cross-section.

[0017] Figure 3 This is a three-dimensional structural diagram of the motor and cylindrical plate of this utility model.

[0018] Figure 4 This is a three-dimensional structural diagram of the crank and pulley of this utility model.

[0019] Figure 5 This is a three-dimensional structural diagram of the long plate and spring of this utility model.

[0020] The attached figures are labeled as follows: 1. Wastewater treatment device; 101. Support platform; 102. Support leg; 103. Container; 104. Support frame; 105. Connecting pump; 106. Oil-water separator; 107. Mixing tank; 108. Switch plate; 109. Rectangular box; 110. Stirring rod; 111. Filter box; 2. Adjustment device; 201. Motor; 202. Cylindrical plate; 203. Rotating rod; 204. Rotating column; 205. Transmission wheel A; 206. Transmission belt; 207. Transmission wheel B; 208. Fixed column; 209. Crank; 210. Pulley; 211. Semicircular ring plate; 212. Slide plate; 213. Fixed plate; 214. Support rod; 3. Auxiliary device; 301. Long plate; 302. Spring; 303. Connecting plate; 304. Scraper. Detailed Implementation

[0021] 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. Example

[0022] As attached Figures 1 to 5 The illustrated oily wastewater treatment device includes a wastewater treatment device 1, which includes a support platform 101. Support legs 102 are fixedly connected to the bottom of the support platform 101, and a container 103 is fixedly connected to the top of the support platform 101. A connecting pump 105 is fixedly connected to the circumferential surface of one side of the container 103, and a support frame 104 is fixedly connected to the bottom of the connecting pump 105. An oil-water separator 106 is fixedly connected to the end of the connecting pump 105 away from the container 103. A mixing tank 107 is provided on one side of the oil-water separator 106, and a switch plate 108 is provided on the circumferential surface of the mixing tank 107. A rectangular box 109 is fixedly connected to the top of the mixing tank 107, and a stirring rod 110 is provided inside the mixing tank 107. A filter box 111 is provided on the side of the mixing tank 107 away from the oil-water separator 106. The device also includes an adjusting device 2 for adjusting the stirring range of the stirring rod 110, and an auxiliary device 3 for scraping the inner circumferential surface of the mixing tank 107.

[0023] In a preferred embodiment, the adjusting device 2 includes a motor 201. A cylindrical plate 202 is fixedly connected to the fixed output shaft of the motor 201. A rotating rod 203 passes through the circumferential surface of the cylindrical plate 202 away from the motor 201 and is fixedly connected to the cylindrical plate 202. A rotating column 204 is slidably connected to the end of the rotating rod 203 away from the cylindrical plate 202. A transmission wheel A205 passes through the circumferential surface of the cylindrical plate 202 near the motor 201 and is fixedly connected to the cylindrical plate 202. A transmission belt 206 is sleeved on the circumferential surface of the transmission wheel A205 and is fixedly connected to the transmission wheel A205. A transmission wheel B207 is sleeved on the end of the transmission belt 206 away from the transmission wheel A205 and is fixedly connected to the transmission wheel B207. The drive belt 206 is fixedly connected, and the inside of the transmission wheel B207 has a fixed column 208 that is fixedly connected to the transmission wheel B207. One end of the fixed column 208 is fixedly connected to a crank 209. The end of the crank 209 away from the fixed column 208 is rotatably connected to a pulley 210. A semi-circular ring plate 211 is slidably connected to the circumference of the pulley 210. A sliding plate 212 is fixedly connected to one side of the semi-circular ring plate 211. A fixed plate 213 is slidably connected to the surface of the sliding plate 212. A support rod 214 passes through the surface of the fixed plate 213 and is fixedly connected to the fixed plate 213. In the above design, the rotational power of the motor 201 is synchronously transmitted to the rotating rod 203 and the transmission wheel A205 through the cylindrical plate 202.

[0024] In a preferred embodiment, one end of the motor 201 is fixedly connected to the surface of one side inside the rectangular box 109. A bidirectional sliding groove is formed on the circumferential surface of the rotating column 204, and the end of the rotating rod 203 away from the cylindrical plate 202 is slidably connected to the bidirectional sliding groove on the circumferential surface of the rotating column 204. A sliding groove is formed inside the rotating column 204, and a stirring rod 110 passes through the interior of the rotating column 204 and is slidably connected to the rotating column 204. The end of the fixed column 208 away from the crank 209 passes through the surface of one side inside the rectangular box 109 and is slidably connected to the rectangular plate 109. The box 109 is rotatably connected, and a guide groove is opened inside the semi-circular ring plate 211. The pulley 210 is slidably connected to the guide groove opened inside the semi-circular ring plate 211. The bottom end of the slide plate 212 is provided with a ring sleeve, and the ring sleeve is fitted on the top circumferential surface of the stirring rod 110 and rotatably connected to the stirring rod 110. The two ends of the support rod 214 are fixedly connected to the inner surface of the rectangular box 109. In the above design, the motor 201 is stably installed inside the rectangular box 109 to provide a reliable support foundation and ensure the stability of power output.

[0025] In a preferred embodiment, the oil-water separator 106 and the mixing tank 107, as well as the mixing tank 107 and the filter tank 111, are all equipped with a connecting pump 105 and are connected through the connecting pump 105. In the above design, the connecting pump 105 is used to provide power for the transfer of wastewater between the various treatment units, ensuring the continuous and stable operation of the process.

[0026] Wherein: After the motor 201 starts, its output shaft simultaneously drives the cylindrical plate 202 and the transmission wheel A205 to rotate. Thus, the cylindrical plate 202, through the cooperation of the rotating rod 203 and the sliding groove in the rotating column 204, directly drives the stirring rod 110 to rotate. Next, the transmission wheel A205 transmits power to the transmission wheel B207 through the transmission belt 206, and then drives the crank 209 to rotate through the fixed column 208. The pulley 210 at one end of the crank 209 slides in the guide groove of the semi-circular ring plate 211, converting the circumferential motion into the vertical reciprocating motion of the slide plate 212 fixed to the semi-circular ring plate 211. Then, the slide plate 212 transmits the reciprocating motion to the stirring rod 110 through the ring sleeve at its bottom, so that the stirring rod 110 can perform axial reciprocating extension and retraction motion while rotating continuously. Example

[0027] Based on Example 1, the solution in Example 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 5 As shown below, see details: In a preferred embodiment, the auxiliary device 3 includes a long plate 301, a spring 302 is fixedly connected to one side of the long plate 301, a connecting plate 303 is fixedly connected to the end of the spring 302 away from the long plate 301, and a scraper 304 is fixedly connected to the end of the connecting plate 303 away from the spring 302.

[0028] In a preferred embodiment, the side of the long plate 301 away from the spring 302 is fixedly connected to the support rod of the stirring rod 110. A groove is provided on the surface of the side of the long plate 301 away from the stirring rod 110, and one end of the spring 302 is set in the groove of the long plate 301. In the above design, the long plate 301 is fixed to the stirring rod 110 so that it rotates synchronously with the stirring rod 110.

[0029] In a preferred embodiment, the end of the scraper 304 away from the connecting plate 303 is disposed on the inner circumferential surface of the mixing box 107. There are four scrapers 304, which are distributed on the support rod of the stirring rod 110. In the above design, the four scrapers 304 can clean the entire inner circumference of the mixing box 107 simultaneously and comprehensively, preventing cleaning dead corners and improving scraping efficiency.

[0030] The working process of this utility model is as follows: First, after the motor 201 starts, its fixed output shaft directly drives the cylindrical plate 202 to rotate. The rotation of the cylindrical plate 202 simultaneously drives the rotating rod 203 and the transmission wheel A205, which are fixedly connected to its circumference, to rotate synchronously. Initially, the rotation of the stirring rod 110 is caused by the rotating rod 203, which is fixedly connected to the cylindrical plate 202, moving in a circular motion. Since the end of the rotating rod 203 away from the cylindrical plate 202 is slidably connected to the bidirectional groove opened on the circumference of the rotating column 204, the rotation of the rotating rod 203 forces the rotating column 204 to rotate. Since the stirring rod 110 passes through and slides through the internal groove of the rotating column 204, the rotational motion of the rotating column 204 directly drives the stirring rod 110 to rotate continuously around its own axis, thus causing the stirring rod 110 to rotate. Secondly, to increase the stirring range of the stirring rod 110, the rotation of the transmission wheel A205 is transmitted to the transmission wheel B207 via the transmission belt 206, causing the fixed column 208, which is fixedly inserted inside the transmission wheel B207, to rotate. This rotation of the fixed column 208 drives the crank 209, which is fixedly connected to one end, to perform circular motion. The end of the crank 209 away from the fixed column 208 then slides through the pulley 210 into the guide groove inside the semi-circular ring plate 211. This causes the pulley 210 to move along the contour of the guide groove in the semi-circular ring plate 211, converting the circular motion of the crank 209 into the vertical reciprocating motion of the semi-circular ring plate 211 and the sliding plate 212 fixedly connected to one side. This allows the bottom end of the sliding plate 212 to be fitted onto the top circumference of the stirring rod 110 via a ring and rotated thereto, thus transmitting the vertical reciprocating motion to the stirring rod 110 and driving it to extend and retract axially. Ultimately, the stirring rod 110, driven by the rotating column 204, rotates while simultaneously experiencing vertical reciprocating motion, thereby improving stirring efficiency. This solves the problem of limited stirring range and numerous dead zones caused by the inability to rotate in a fixed position, resulting in the formation of stable rigid vortices in the tank. Furthermore, it addresses the issue of uneven mixing in some areas, where oil and suspended solids cannot fully coagulate or separate, ultimately leading to poor demulsification, significantly reduced separation efficiency, and excessive oil content in the effluent.

[0031] Secondly, the side of the long plate 301 away from the spring 302 is fixedly connected to the support rod of the stirring rod 110. When the stirring rod 110 rotates, the long plate 301 rotates synchronously. Then, the long plate 301 transmits the force to the connecting plate 303 through the spring 302 fixedly connected to one side of it. Since one end of the spring 302 is fixedly connected to the groove opened on the surface of the long plate 301, the stability of the connection is enhanced. And because the two ends of the spring 302 are fixedly connected to one side of the long plate 301 and one side of the connecting plate 303 respectively, a continuous elastic preload is provided to the connecting plate 303. This preload is then applied to the scraper 304 fixedly connected to the far end of the connecting plate 303, so that the scraper 304 can always be tightly attached to the circumferential surface inside the mixing tank 107. As the stirring rod 110 continues to rotate, the scraper 304 effectively removes oil stains, viscous residues or foam deposits adhering to the tank wall, thereby preventing the accumulation of dirt, maintaining the effective volume and heat transfer efficiency of the mixing tank 107, and avoiding secondary pollution caused by the falling off of accumulated substances.

[0032] The above describes the working principle of this oily wastewater treatment device.

Claims

1. An oily wastewater treatment device, comprising a wastewater treatment device (1), characterized in that: The wastewater treatment device (1) includes a support platform (101), a support leg (102) is fixedly connected to the bottom of the support platform (101), a container (103) is fixedly connected to the top of the support platform (101), a connecting pump (105) is fixedly connected to the circumferential surface of one side of the container (103), a support frame (104) is fixedly connected to the bottom of the connecting pump (105), an oil-water separator (106) is fixedly connected to the end of the connecting pump (105) away from the container (103), a mixing tank (107) is provided on one side of the oil-water separator (106), a switch plate (108) is provided on the circumferential surface of the mixing tank (107), a rectangular box (109) is fixedly connected to the top of the mixing tank (107), a stirring rod (110) is provided inside the mixing tank (107), and a filter box (111) is provided on the side of the mixing tank (107) away from the oil-water separator (106). It also includes an adjustment device (2) for adjusting the stirring range of the stirring rod (110); Auxiliary device (3) is used to scrape the inner circumferential surface of the mixing box (107).

2. The oily wastewater treatment device according to claim 1, characterized in that: The adjusting device (2) includes a motor (201), a cylindrical plate (202) is fixedly connected to the fixed output shaft of the motor (201), a rotating rod (203) passes through the circumferential surface of the cylindrical plate (202) away from the motor (201) and is fixedly connected to the cylindrical plate (202), a rotating column (204) is slidably connected to the end of the rotating rod (203) away from the cylindrical plate (202), a transmission wheel A (205) passes through the circumferential surface of the cylindrical plate (202) near the motor (201) and is fixedly connected to the cylindrical plate (202), a transmission belt (206) is sleeved on the circumferential surface of the transmission wheel A (205) and is fixedly connected to the transmission wheel A (205), and the transmission belt (206) is away from the transmission wheel A (205). One end is fitted with a transmission wheel B (207) and is fixedly connected to a transmission belt (206). A fixed column (208) passes through the inside of the transmission wheel B (207) and is fixedly connected to the transmission wheel B (207). A crank (209) is fixedly connected to one end of the fixed column (208). A pulley (210) is rotatably connected to the end of the crank (209) away from the fixed column (208). A semi-circular ring plate (211) is slidably connected to the circumference of the pulley (210). A sliding plate (212) is fixedly connected to one side of the semi-circular ring plate (211). A fixed plate (213) is slidably connected to the surface of the sliding plate (212). A support rod (214) passes through the surface of the fixed plate (213) and is fixedly connected to the fixed plate (213).

3. The oily wastewater treatment device according to claim 2, characterized in that: One end of the motor (201) is fixedly connected to the surface of one side inside the rectangular box (109). A bidirectional sliding groove is provided on the circumferential surface of the rotating column (204), and the end of the rotating rod (203) away from the cylindrical plate (202) is slidably connected to the bidirectional sliding groove on the circumferential surface of the rotating column (204). A sliding groove is provided inside the rotating column (204), and a stirring rod (110) passes through the interior of the rotating column (204) and is slidably connected to the rotating column (204). The fixed column (208) is away from the crank (209). One end of the rod passes through the surface of one side of the rectangular box (109) and is rotatably connected to the rectangular box (109). The semi-circular ring plate (211) has a guide groove inside, and the pulley (210) is slidably connected to the guide groove inside the semi-circular ring plate (211). The bottom end of the sliding plate (212) is provided with a ring sleeve, and the ring sleeve is fitted on the top circumferential surface of the stirring rod (110) and is rotatably connected to the stirring rod (110). The two ends of the support rod (214) are fixedly connected to the inner surface of the rectangular box (109).

4. The oily wastewater treatment device according to claim 1, characterized in that: The auxiliary device (3) includes a long plate (301), a spring (302) is fixedly connected to one side of the long plate (301), a connecting plate (303) is fixedly connected to the end of the spring (302) away from the long plate (301), and a scraper (304) is fixedly connected to the end of the connecting plate (303) away from the spring (302).

5. The oily wastewater treatment device according to claim 4, characterized in that: The side of the long plate (301) away from the spring (302) is fixedly connected to the support rod of the stirring rod (110). A groove is provided on the surface of the side of the long plate (301) away from the stirring rod (110), and one end of the spring (302) is set on the groove provided on the long plate (301).

6. The oily wastewater treatment device according to claim 4, characterized in that: The scraper (304) is located on the inner circumferential surface of the mixing box (107) at one end away from the connecting plate (303). There are four scrapers (304) and they are distributed on the support rod of the stirring rod (110).

7. The oily wastewater treatment device according to claim 1, characterized in that: The oil-water separator (106) and the mixing tank (107), as well as the mixing tank (107) and the filter tank (111), are all equipped with a connecting pump (105) and are connected through the connecting pump (105).

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