Continuous oil removal device

Abstract

The utility model relates to the field of oil-containing sludge treatment, in particular to a continuous oil removal device which comprises a bin body, a first separation plate, a second separation plate, a first oil removal device and a second oil removal device, the first partition plate and the second partition plate divide the bin body into a stirring bin, an oil separation bin and a discharging bin, the oil separation bin is located between the stirring bin and the discharging bin, and an oil discharging groove is formed in the upper portion in the oil separation bin; a feeding opening is formed in the upper part of the stirring bin; a discharging opening is formed in the lower part of the discharging bin; a mixed liquid outlet is formed in the lower portion of the second partition plate, a liquid level adjusting device is arranged in the discharging bin, and a liquid inlet of the liquid level adjusting device is communicated with the mixed liquid outlet. The stirring bin is communicated with the upper part of the oil separation bin; the continuous oil removal device provided by the utility model solves the problems that an oil removal device in the prior art cannot realize continuous oil removal and is high in oil removal cost.

Description

Technical Field

[0001] This utility model relates to the field of oily sludge treatment technology, and more specifically, to a continuous oil removal device. Background Technology

[0002] Oily sludge is a waste product generated during oil extraction and refining, containing a large amount of petroleum hydrocarbons. If these substances are not treated, they will not only waste resources but also pollute the environment. Traditional methods for removing oily sludge include centrifugal discharge, stirring, settling, and oil scraping.

[0003] The advantages of centrifugal discharge technology for oil removal are that it can quickly achieve the discharge of three phases: oil, water, and solids, and features continuous production and stable and reliable operation. The disadvantages are that it can only perform single-stage discharge, resulting in poor quality of recovered oil. If two centrifugal discharges are performed, there will be problems such as increased energy consumption and increased equipment investment. The stirring and settling oil scraping device involves adding chemicals and stirring, followed by settling. It cannot achieve continuous oil removal and is an intermittent oil removal device with low processing efficiency. It requires batch processing, and its maintenance is complex and costly.

[0004] In view of this, this utility model is hereby proposed. Utility Model Content

[0005] The main objective of this invention is to provide a continuous oil removal device to solve the problems of low efficiency, high cost, and inability to continuously remove oil in existing oil separation devices.

[0006] To achieve the above objectives, this utility model provides a continuous oil removal device, comprising: a chamber body, wherein a first partition and a second partition are provided inside the chamber body; the first partition and the second partition divide the chamber body into a mixing chamber, an oil separation chamber and a discharge chamber, wherein the oil separation chamber is located between the mixing chamber and the discharge chamber, and an oil drain trough is provided in the upper part of the oil separation chamber.

[0007] Specifically, the mixing chamber is provided with a feeding port at the top and a discharging port at the bottom;

[0008] Specifically, the lower part of the second partition is provided with a mixed liquid outlet, and the discharge hopper is provided with a liquid level regulating device, the liquid level regulating device inlet being connected to the mixed liquid outlet;

[0009] Specifically, the mixing chamber is connected to the upper part of the oil separator.

[0010] Specifically, the mixing chamber is provided with a third partition, which divides the mixing chamber into a first mixing chamber and a second mixing chamber. The second mixing chamber is located between the first mixing chamber and the oil separator. The feeding port is located at the upper part of the first mixing chamber. The lower parts of the first mixing chamber and the second mixing chamber are connected, and the second mixing chamber is connected to the oil separator.

[0011] Specifically, agitators are installed on the top of the mixing chamber, the oil separator, and the discharge chamber.

[0012] Specifically, an oil scraping device is provided on the top of the oil separator, and the lower end of the scraper of the oil scraping device is at the same height as the upper end of the oil drain trough.

[0013] Specifically, the oil drain groove is disposed on the second partition plate.

[0014] Specifically, the discharge port of the discharge hopper is connected to a suction pump.

[0015] Specifically, a level gauge is installed inside the discharge hopper.

[0016] The advantages of this utility model are specifically reflected in the following aspects:

[0017] (1) The structure of this utility model is reasonable. The silo is divided into three interconnected chambers: a mixing chamber, an oil separation chamber, and a discharge chamber by a partition. This enables continuous oil removal. Each chamber is equipped with a stirrer, which ensures that the oily sludge is fully stirred and prevents the sludge from clogging the outlet due to mud-water separation.

[0018] (2) The present invention sets the mixing chamber as two separate mixing chambers, and the two mixing chambers are connected by the bottom, which can prevent the material from entering the mixing chamber and overflowing directly into the oil separator, thereby improving the utilization effect of demulsifiers and other drugs and the oil separation efficiency.

[0019] (3) This utility model can ensure that the liquid level in the mixing chamber and the oil separation chamber is always at the surface height of the oil draining tank by connecting the liquid level gauge and the liquid level regulating device, ensuring that the oil scraping device is always at the highest efficiency and guaranteeing the quality of the recovered oil. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the continuous oil removal device of this utility model.

[0021] In the diagram, 1 is the feeding port; 2 is the first mixing chamber; 3 is the second mixing chamber; 4 is the agitator; 5 is the oil separator; 6 is the oil scraper; 7 is the oil drain; 8 is the liquid level regulating device; 9 is the discharge hopper; 10 is the third partition; 11 is the first partition; 12 is the second partition; 13 is the pipe; 14 is the discharge port; and 15 is the suction pump. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the protection scope of the present invention.

[0023] refer to Figure 1 This utility model provides a continuous oil removal device, comprising: a chamber body, wherein a first partition 11 and a second partition 12 are provided inside the chamber body; the first partition 11 and the second partition 12 divide the chamber body into a mixing chamber, an oil separation chamber 5, and a discharge chamber 9, wherein the oil separation chamber 5 is located between the mixing chamber and the discharge chamber 9, and an oil drain trough 7 is provided in the upper part of the oil separation chamber 5; a feeding port 1 is provided in the upper part of the mixing chamber, and a discharge port 14 is provided in the lower part of the discharge chamber 9. Demulsifiers and other chemicals, as well as oily sludge, enter the mixing chamber through the feeding port 1. After oil and sludge separation, the sludge is discharged from the discharge port 14. A mixed liquid outlet is provided in the lower part of the second partition 12, and a liquid level regulating device 8 is provided in the discharge chamber 9. The inlet of the liquid level regulating device 8 and the mixed liquid outlet are connected through a pipe 13.

[0024] To ensure thorough mixing of the feed material, a third partition 10 is provided in the mixing chamber of this embodiment. The third partition 10 divides the mixing chamber into a first mixing chamber 2 and a second mixing chamber 3. The lower parts of the first mixing chamber 2 and the second mixing chamber 3 are connected. The second mixing chamber 3 is located between the first mixing chamber 2 and the oil separator 5. The feed port 1 is located at the upper part of the first mixing chamber 2. The second mixing chamber 3 and the oil separator 5 are separated by a first partition 11 but connected at the top. The advantage of this is that the flow characteristics of the oily sludge can be used to push the floating oil in the oil separator 5 forward, thereby improving the oil removal efficiency.

[0025] The top of the oil separator 5 is equipped with an oil scraping device 6. The lower end of the scraper of the oil scraping device 6 is at the same height as the upper end of the oil drain trough 7. The scraper can move horizontally to scrape the recovered oil on the top of the liquid surface in the oil separator 5.

[0026] In order to improve the efficiency of oil scraping, the oil drain trough 7 is set on the second partition plate 12 in this embodiment, so that the scraper of the oil scraping device 6 has the longest oil scraping distance. In this embodiment, an oil outlet is also opened at the bottom of the oil drain trough 7, and the oil outlet is connected to an external collection device through a pipe 13.

[0027] The mixing chamber 2, the second mixing chamber 3, the oil separator 5, and the discharge chamber 9 are all equipped with agitators 4. The agitator 4 blades in the first mixing chamber 2 and the second mixing chamber 3 are positioned in the middle of the liquid level, which can fully mix the oily sludge and exert the effects of demulsifiers and other chemicals. The agitator 4 in the oil separator 5 is located outside the movement area of ​​the scraper, so it does not affect the movement of the scraper. The agitator 4 blades in the oil separator 5 are located at the bottom of the oil separator, so the mixing speed is slow. This does not affect the operation of the oil scraping device 6 and prevents sludge from accumulating and clogging the outlet of the mixed liquid. The agitator 4 blades in the discharge chamber 9 are positioned in the middle of the liquid level, which can prevent sludge from accumulating and clogging the discharge port 14. After being mixed evenly, the mixture is transported to the next processing step.

[0028] The top of the oil separator 5 can also be equipped with a dosing port, through which flocculant can be added to facilitate oil-sludge separation;

[0029] To facilitate control of the liquid level in the tank, the liquid level regulating device is equipped with an overflow port, which allows the sewage in the oil separator 5 to flow to the discharge tank 9 through the overflow port. By setting the overflow port height, the liquid level control of the mixing tank, the oil separator 5 and the discharge tank 9 can be realized. When the liquid level height is close to the height of the oil drain 7, the working efficiency of the oil scraping device 6 is relatively high.

[0030] To facilitate control of the liquid level in the discharge hopper 9, a level gauge is installed inside the discharge hopper 9. The level gauge can be connected to the suction pump 15 for control, starting at high and stopping at low, to control the liquid level in the discharge hopper 9 and avoid affecting the drainage from the overflow outlet.

[0031] The working process of this utility model is as follows:

[0032] Demulsifiers and other chemicals, along with oily sludge, enter the first mixing chamber 2 through the feeding port 1. After being thoroughly mixed, the mixture enters the second mixing chamber 3 and overflows from the top of the second mixing chamber 3 to the oil separator 5. Inside the oil separator, the oil floats on the surface, and the oil scraping device 6 scrapes the upper layer of oil to the oil discharge trough 7. The oil in the oil discharge trough 7 is discharged to the oil collection device through the oil outlet. The sludge at the bottom of the oil separator flows through the mixed liquid outlet to the discharge hopper 9 and is then discharged to the designated location through the discharge port 14.

[0033] The above description is merely a specific embodiment of this utility model, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this utility model.

[0034] It should be understood that this utility model is not limited to the content already described above, and various modifications and changes can be made without departing from its scope. The scope of this utility model is limited only by the appended claims.

Claims

1. A continuous oil removal device, characterized in that, include: The container body is provided with a first partition (11) and a second partition (12) at intervals inside the container body; The first partition (11) and the second partition (12) divide the chamber into a mixing chamber, an oil separation chamber (5) and a discharge chamber (9), wherein the oil separation chamber (5) is located between the mixing chamber and the discharge chamber (9), and an oil drain trough (7) is provided in the upper part of the oil separation chamber (5); The mixing chamber is provided with a feeding port (1) at the top and a discharge port (14) at the bottom of the discharge chamber (9); The lower part of the second partition (12) is provided with a mixed liquid outlet, and the discharge bin (9) is provided with a liquid level regulating device (8), and the liquid level regulating device (8) is connected to the mixed liquid outlet; The mixing chamber is connected to the upper part of the oil separator (5).

2. The continuous oil removal device according to claim 1, characterized in that, The mixing chamber is provided with a third partition (10), which divides the mixing chamber into a first mixing chamber (2) and a second mixing chamber (3). The second mixing chamber (3) is located between the first mixing chamber (2) and the oil separator (5). The feeding port (1) is located on the upper part of the first mixing chamber (2). The lower part of the first mixing chamber (2) and the second mixing chamber (3) are connected, and the second mixing chamber (3) is connected to the oil separator (5).

3. The continuous oil removal device according to claim 1, characterized in that, Agitators (4) are installed on the top of the mixing chamber, the oil separator (5) and the discharge chamber (9).

4. The continuous oil removal device according to claim 3, characterized in that, The agitator (4) blades in the mixing chamber are located in the middle of the mixing chamber; The agitator (4) blades of the oil separator (5) are located at the bottom of the oil separator (5); The agitator (4) blades of the discharge bin (9) are located in the middle of the discharge bin (9).

5. The continuous oil removal device according to claim 1, characterized in that, The top of the oil separator (5) is provided with an oil scraping device (6), and the lower end of the scraper of the oil scraping device (6) is at the same height as the upper end of the oil drain trough (7).

6. The continuous oil removal device according to claim 1, characterized in that, The oil drain trough (7) is located on the second partition (12).

7. The continuous oil removal device according to claim 1, characterized in that, The discharge port (14) of the discharge bin (9) is connected to the suction pump (15).

8. The continuous oil removal device according to claim 7, characterized in that, A level gauge is installed inside the discharge hopper (9).

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