Vacuum distillation post-treatment device for oily wastewater

Abstract

The utility model discloses a vacuum distillation post-treatment device for oily wastewater, belongs to the technical field of oily wastewater treatment, and aims to solve the problems that the difficulty of subsequent treatment is increased and the quality of a water body after subsequent water vapor condensation is influenced because small-particle oil substances are easily contained in a water vapor evaporation process. Comprising a tank body, a tank cover, a buckle, a snakelike coil pipe, a water inlet pipe, a stirring mechanism and a filtering mechanism, the tank cover is arranged above the tank body, the buckle is arranged between the tank body and the tank cover, the snakelike coil pipe is arranged in the tank body, the water inlet pipe is fixedly connected to one side of the upper portion of the tank body, the stirring mechanism is arranged on the lower portion of the interior of the tank body, and the filtering mechanism is arranged in the tank body. The filtering mechanism is arranged at the upper part in the tank body; according to the utility model, the stirring mechanism is arranged, so that the stirring efficiency of oil-containing wastewater can be improved, and meanwhile, the oil-containing water on the inner wall of the tank body is scraped off through the scraping plate, so that the treatment efficiency is improved, and the distillation effect and quality are improved.

Description

Technical Field

[0001] This utility model belongs to the field of oily wastewater treatment technology, specifically relating to a vacuum distillation post-treatment device for oily wastewater. Background Technology

[0002] Oily wastewater refers to wastewater containing oily substances discharged during industrial production processes. These oily substances may include natural petroleum, petroleum products, tar and its fractions, as well as edible animal and vegetable oils and fats. Oily wastewater can seep into the pores of the soil, forming an oil film that blocks air and moisture from penetrating the soil, which is detrimental to crop growth and may even cause crops to wither and die.

[0003] The prior art patent publication number CN221166074U describes a vacuum distillation post-treatment device for oily wastewater. This patent utilizes the potential energy of water flow to drive a turbine, which in turn drives a rotating rod, which in turn drives a mounting plate. The mounting plate then drives a cleaning brush in a circular motion. This allows the cleaning brush to clean the inner wall of the cylindrical filter, preventing impurities from clogging it and improving the filter's performance and efficiency. However, in practical use, the following shortcomings exist: In practice, when vacuum distilling oily wastewater, the water vapor evaporation process can easily contain small oil particles, increasing the difficulty of subsequent treatment and affecting the quality of the water after condensation.

[0004] Therefore, there is a need for a vacuum distillation post-treatment device for oily wastewater to solve the problem that the existing technology is prone to the presence of small oil particles during the water vapor evaporation process, which increases the difficulty of subsequent treatment and affects the quality of the water after subsequent water vapor condensation. Utility Model Content

[0005] The purpose of this invention is to provide a vacuum distillation post-treatment device for oily wastewater to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a vacuum distillation post-treatment device for oily wastewater, comprising a tank body, a tank cover, a buckle, a serpentine coil, a water inlet pipe, a stirring mechanism, and a filtering mechanism. The tank cover is disposed on top of the tank body, the buckle is disposed between the tank body and the tank cover, the serpentine coil is disposed inside the tank body, the water inlet pipe is fixedly connected to the upper side of the tank body, the stirring mechanism is disposed inside the lower part of the tank body, and the filtering mechanism is disposed inside the upper part of the tank body.

[0007] The stirring mechanism consists of a motor, a connecting shaft, a stirring rod, a connecting rod, a scraper, and a limiting block. The motor is fixedly connected to the bottom of the tank. The connecting shaft is connected to the output end of the motor. The stirring rod is symmetrically and evenly fixedly connected to the outside of the connecting shaft. The connecting rod is fixedly connected to the outside of the connecting shaft. The scraper is fixedly connected to one end of the connecting rod and is in contact with the inner wall of the tank.

[0008] It should be noted in the solution that the limiting block is symmetrically fixedly connected to the upper and lower sides of the scraper, and the stirring rod and scraper are respectively provided with through holes.

[0009] It is worth noting that the serpentine coil is located outside the stirring rod, and both ends of the serpentine coil penetrate the bottom surface of the tank. The two outlets of the serpentine coil are connected to the external expansion throttle and heat exchanger, respectively.

[0010] Furthermore, it should be noted that the filtration mechanism consists of a fixed ring, a filter plate, a filter screen, absorbent cotton, a fixed shaft, a rotating rod, a threaded rod, a positioning block, and a limiting post. The fixed ring is fixedly connected to the upper interior of the tank. An L-shaped groove is formed inside the top surface of the fixed ring. The filter plate is positioned above the fixed ring, the filter screen is positioned inside the upper interior of the filter plate, and the absorbent cotton is positioned below the filter screen.

[0011] In a preferred embodiment, the fixed shaft is symmetrically fixedly connected above the fixed ring, the rotating rod is rotatably connected to the outside of the fixed shaft, the threaded rod is threadedly connected to the upper and lower sides of the rotating rod, and the positioning block is rotatably connected to the bottom end of the threaded rod.

[0012] In a preferred embodiment, the limiting post is symmetrically fixedly connected above the L-shaped groove of the fixing ring, and the filter plate has symmetrically opened round holes on the front and rear sides that are adapted to the limiting post. The filter plate has symmetrically opened grooves on the left and right sides of the top surface that are adapted to the positioning block.

[0013] In a preferred embodiment, the bottom surface of the fixing ring and the inner bottom surface of the tank are symmetrically provided with annular grooves that are adapted to the limiting block.

[0014] Compared with the prior art, the vacuum distillation post-treatment device for oily wastewater provided by this utility model has at least the following beneficial effects:

[0015] (1) The stirring mechanism can speed up the stirring efficiency of oily wastewater, and the scraper can scrape off the oily water on the inner wall of the tank, thereby speeding up the treatment efficiency and improving the distillation effect and quality.

[0016] (2) The filter mechanism can adsorb and filter small oily particles in the water vapor generated by distillation, so as to avoid the water vapor being discharged with oily substances, reduce the difficulty of subsequent treatment and improve the water quality after the subsequent water vapor is condensed. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0020] Figure 4 This is a schematic diagram of the filter mechanism of this utility model.

[0021] In the diagram: 1. Tank body; 2. Tank lid; 3. Buckle; 4. Snake coil; 5. Water inlet pipe; 6. Stirring mechanism; 7. Filtration mechanism; 601. Motor; 602. Connecting shaft; 603. Stirring rod; 604. Connecting rod; 605. Scraper; 606. Through hole; 607. Limiting block; 608. Annular groove; 701. Fixing ring; 702. Filter plate; 703. Filter screen; 704. Absorbent cotton; 705. Fixing shaft; 706. Rotating rod; 707. Threaded rod; 708. Positioning block; 709. Limiting post. Detailed Implementation

[0022] The present invention will be further described below with reference to the embodiments.

[0023] Please see Figure 1-4 This utility model provides a vacuum distillation post-treatment device for oily wastewater, including a tank body 1, a tank cover 2, a buckle 3, a serpentine coil 4, a water inlet pipe 5, a stirring mechanism 6, and a filtration mechanism 7. The tank cover 2 is located above the tank body 1, the buckle 3 is located between the tank body 1 and the tank cover 2, the serpentine coil 4 is located inside the tank body 1, the water inlet pipe 5 is fixedly connected to the upper side of the tank body 1, the stirring mechanism 6 is located inside the lower part of the tank body 1, and the filtration mechanism 7 is located inside the upper part of the tank body 1.

[0024] The stirring mechanism 6 consists of a motor 601, a connecting shaft 602, a stirring rod 603, a connecting rod 604, a scraper 605, and a limiting block 607. The motor 601 is fixedly connected to the bottom of the tank 1, the connecting shaft 602 is connected to the output end of the motor 601, the stirring rod 603 is symmetrically and evenly fixedly connected to the outside of the connecting shaft 602, the connecting rod 604 is fixedly connected to the upper outside of the connecting shaft 602, and the scraper 605 is fixedly connected to one end of the connecting rod 604, and the scraper 605 is in contact with the inner wall of the tank 1.

[0025] Further as Figure 1 and Figure 3 As shown, it is worth noting that the limiting block 607 is symmetrically fixedly connected to the upper and lower sides of the scraper 605, and the stirring rod 603 and the scraper 605 are respectively provided with through holes 606.

[0026] By using the through hole 606, the resistance between the stirring rod 603 and the scraper 605 and the water can be avoided when they rotate. The water can flow through the through hole 606, thus improving the stirring efficiency.

[0027] Further as Figure 1 and Figure 3 As shown, it is worth noting that the serpentine coil 4 is located outside the stirring rod 603, and both ends of the serpentine coil 4 penetrate the bottom surface of the tank 1. The two outlets of the serpentine coil 4 are connected to the external expansion throttle and heat exchanger, respectively.

[0028] As can be seen from the above working process, the stirring mechanism 6 can accelerate the stirring efficiency of oily wastewater, and at the same time, the scraper 605 scrapes off the oily water on the inner wall of the tank 1, thereby accelerating the treatment efficiency and improving the distillation effect and quality.

[0029] Further as Figure 2 , Figure 3 and Figure 4 As shown, it is worth noting that the filtration mechanism 7 consists of a fixed ring 701, a filter plate 702, a filter screen 703, absorbent cotton 704, a fixed shaft 705, a rotating rod 706, a threaded rod 707, a positioning block 708, and a limiting post 709. The fixed ring 701 is fixedly connected to the upper part of the inside of the tank 1. An L-shaped groove is opened inside the top surface of the fixed ring 701. The filter plate 702 is located above the fixed ring 701, the filter screen 703 is located inside the upper part of the filter plate 702, and the absorbent cotton 704 is located below the filter screen 703.

[0030] Further as Figure 2 , Figure 3 and Figure 4 As shown, it is worth noting that the fixed shaft 705 is symmetrically fixedly connected to the upper part of the fixed ring 701, the rotating rod 706 is rotatably connected to the outside of the fixed shaft 705, the threaded rod 707 is threadedly connected to the upper and lower sides of the rotating rod 706, the positioning block 708 is rotatably connected to the bottom end of the threaded rod 707, the limiting post 709 is symmetrically fixedly connected to the upper part of the L-shaped groove of the fixed ring 701, the filter plate 702 has symmetrically opened round holes on the front and rear sides that are adapted to the limiting post 709, and the top surface of the filter plate 702 has symmetrically opened grooves on the left and right sides that are adapted to the positioning block 708.

[0031] Further as Figure 2 , Figure 3 and Figure 4 As shown, it is worth noting that the bottom surface of the fixing ring 701 and the inner bottom surface of the tank body 1 are symmetrically provided with an annular groove 608 that is adapted to the limiting block 607.

[0032] The limiting block 607 slides inside the annular groove 608, which improves the stability of the rotation of the limiting block 607 and ensures the stability of the limiting block 607 in scraping the inner wall of the tank 1.

[0033] This solution has the following working process: In use, oily wastewater is first introduced into the tank 1 through the stirring mechanism 6. Then, the motor 601 is started to drive the connecting shaft 602 to rotate, and the water is stirred by the stirring rod 603. At the same time, the connecting rod 604 drives the scraper 605 to rotate, scraping the inner wall of the tank 1 to prevent oily water from adsorbing onto the inner wall of the tank 1 and affecting the fullness of wastewater distillation. When distilling the wastewater, water vapor is filtered through the adsorption cotton 704 and the filter screen 703 in sequence. The adsorption cotton 704 can adsorb the small oily particles contained in the water vapor and discharge it through the exhaust pipe above, ensuring the quality of water vapor distillation.

[0034] However, when it is necessary to replace the absorbent cotton 704, first open the buckle 3, remove the can lid 2, rotate the threaded rod 707 to move the positioning block 708 upward, so that the positioning block 708 is disengaged from the inside of the groove, and then rotate the rotating rod 706 so that the positioning block 708 is not above the filter plate 702. Then the filter plate 702 can be removed upward, and the filter screen 703 and absorbent cotton 704 can be cleaned and replaced. The new filter plate 702 is inserted into the outside of the limiting post 709 through the round hole. Then rotate the rotating rod 706 to move the positioning block 708 above the groove. Rotate the threaded rod 707 in the opposite direction to move the positioning block 708 downward, so that the positioning block 708 is set inside the groove, fixing the position of the filter plate 702 and ensuring the stability of water vapor filtration during wastewater distillation.

[0035] In summary: The stirring mechanism 6 can accelerate the stirring efficiency of oily wastewater, and the scraper 605 can scrape off the oily water on the inner wall of the tank 1, thereby accelerating the treatment efficiency and improving the distillation effect and quality; the filtration mechanism 7 can adsorb and filter small oily particles in the water vapor generated by distillation, avoiding the discharge of oily substances in the water vapor, reducing the difficulty of subsequent treatment and improving the quality of the water after subsequent water vapor condensation.

Claims

1. A vacuum distillation post-treatment device for oily wastewater, comprising a tank (1), a tank cover (2), a buckle (3), a serpentine coil (4), a water inlet pipe (5), a stirring mechanism (6), and a filtration mechanism (7), characterized in that: The can lid (2) is located above the can body (1), the buckle (3) is located between the can body (1) and the can lid (2), the serpentine coil (4) is located inside the can body (1), the water inlet pipe (5) is fixedly connected to the upper side of the can body (1), the stirring mechanism (6) is located inside the lower part of the can body (1), and the filtering mechanism (7) is located inside the upper part of the can body (1). The stirring mechanism (6) consists of a motor (601), a connecting shaft (602), a stirring rod (603), a connecting rod (604), a scraper (605), and a limiting block (607). The motor (601) is fixedly connected to the bottom of the tank (1). The connecting shaft (602) is connected to the output end of the motor (601). The stirring rod (603) is symmetrically and evenly fixedly connected to the outside of the connecting shaft (602). The connecting rod (604) is fixedly connected to the outside of the connecting shaft (602) above. The scraper (605) is fixedly connected to one end of the connecting rod (604), and the scraper (605) is in contact with the inner wall of the tank (1).

2. The device for treating oily wastewater after vacuum distillation according to claim 1, characterized in that: The limiting block (607) is symmetrically fixedly connected to the upper and lower sides of the scraper (605), and the stirring rod (603) and the scraper (605) are respectively provided with through holes (606).

3. The vacuum distillation post-treatment device for oily wastewater according to claim 2, characterized in that: The serpentine coil (4) is located outside the stirring rod (603), and both ends of the serpentine coil (4) penetrate the bottom surface of the tank (1) respectively. The two outlets of the serpentine coil (4) are connected to the external expansion throttle and heat exchanger respectively.

4. The vacuum distillation post-treatment device for oily wastewater according to claim 3, characterized in that: The filtration mechanism (7) consists of a fixed ring (701), a filter plate (702), a filter screen (703), absorbent cotton (704), a fixed shaft (705), a rotating rod (706), a threaded rod (707), a positioning block (708), and a limiting post (709). The fixed ring (701) is fixedly connected to the upper part of the inside of the tank (1). An L-shaped groove is opened inside the top surface of the fixed ring (701). The filter plate (702) is located above the fixed ring (701). The filter screen (703) is located inside the upper part of the filter plate (702). The absorbent cotton (704) is located below the filter screen (703).

5. The vacuum distillation post-treatment device for oily wastewater according to claim 4, characterized in that: The fixed shaft (705) is symmetrically fixed above the fixed ring (701), the rotating rod (706) is rotatably connected to the outside of the fixed shaft (705), the threaded rod (707) is threadedly connected to the upper and lower sides of the rotating rod (706), and the positioning block (708) is rotatably connected to the bottom end of the threaded rod (707).

6. The vacuum distillation post-treatment device for oily wastewater according to claim 5, characterized in that: The limiting post (709) is symmetrically fixedly connected above the L-shaped groove of the fixing ring (701). The filter plate (702) has symmetrically opened round holes on the front and rear sides that are compatible with the limiting post (709). The filter plate (702) has symmetrically opened grooves on the left and right sides of the top surface that are compatible with the positioning block (708).

7. The vacuum distillation post-treatment device for oily wastewater according to claim 6, characterized in that: The bottom surface of the fixed ring (701) and the inner bottom surface of the tank body (1) are symmetrically provided with an annular groove (608) that is adapted to the limiting block (607).

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