Pretreatment device for oil-water separation

Abstract

The utility model discloses a pretreatment device for oil-water separation, which relates to the technical field of oil-water separation treatment and comprises a treatment platform, a pretreatment box and a separation box, the pretreatment box and the separation box are positioned on the treatment platform, the top of the pretreatment box is connected with a feed pipe, and the outer wall of the pretreatment box is assembled on the treatment platform through a support. A leakage net bracket is mounted at a bottom opening of the pretreatment box; the top end of a conical leakage net fixed on the leakage net bracket covers the bottom opening of the pretreatment box; the discharging pipe is sealed by the discharging assembly, garbage containing oil and water is poured into the pretreatment box from the feeding pipe, the garbage is filtered by the conical leakage net, the oil and water flow through the conical leakage net and fall into the separation box, the garbage on the conical leakage net is scraped by the stirring assembly so that the residual oil and water can fall down, and after pre-separation is finished, the discharging pipe is opened, and the oil and water are separated. And in cooperation with rotation of the scraper, garbage is continuously scraped off and discharged from the discharging pipe to fall into the collecting tank, and garbage is prevented from remaining in the pretreatment box.

Description

Technical Field

[0001] The utility model relates to the technical field of oil-water separation treatment, in particular to a pretreatment device for oil-water separation. Background Art

[0002] In addition to some solid residues, the sewage discharged from the catering industry such as hotels and restaurants also contains a liquid mixture of oil and water. If it is directly discharged after removing the residues, it will cause serious pollution to the environment. Therefore, the oil-water mixture must undergo a series of purification treatments before being discharged.

[0003] The existing oil-water separation equipment is generally relatively traditional and cannot pre-treat the oil-water mixture. The impurities in the oil-water mixture will seriously affect the oil-water separation treatment effect. Therefore, in view of the above situation, there is an urgent need to provide a pretreatment equipment for oil-water separation and an oil-water separation equipment to overcome the deficiencies in current practical applications. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a pretreatment device for oil-water separation to solve the above problems.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A pretreatment device for oil-water separation includes a processing platform, a pretreatment tank and a separation tank located on the processing platform. The top of the pretreatment tank is connected to a feed pipe, and the outer wall of the pretreatment tank is assembled on the processing platform through a bracket. At the bottom opening of the pretreatment tank, a net support is installed, and the top of the conical net fixed on the net support covers the bottom opening of the pretreatment tank;

[0007] One end of a stirring component arranged in the pretreatment tank is connected to a motor on the pretreatment tank, and the other end of the stirring component contacts the surface of the conical net. The top end of a discharge pipe connected to the net support is fixed to the bottom opening of the conical net, and the other end of the discharge pipe passes through the separation tank and the processing platform and extends into a collection tank;

[0008] A feeding component connected to the bottom end of the stirring component is inserted into the discharge pipe.

[0009] As a preferred technical solution of this application, the four end corners of the bottom surface of the processing platform are connected to support columns. The collection tank is located below the processing platform, and the separation tank is above the processing platform. The opening diameter of the separation tank is larger than the outer diameter of the top opening of the conical net.

[0010] As a preferred technical solution of this application, the stirring component includes a rotating shaft, side rods and scraping plates. The side rods are equally spaced around the outer wall of the rotating shaft. The top end of the rotating shaft passes through the pretreatment tank and is connected to the shaft of the motor through a coupling. The scraping plates are obliquely fixed on the side rods, and the bottom surface of the scraping plates contacts the inner wall of the conical net.

[0011] As a preferred technical solution of the present application, the blanking assembly includes a blanking support rod, a blanking plugging component, and a transmission lead screw. The outer wall of the blanking plugging component is connected to the top of the discharge pipe through a plurality of fixed blanking support rods. One end of the transmission lead screw is fixed to the bottom end of the rotating shaft, and the other end of the transmission lead screw penetrates into the blanking plugging component.

[0012] As a preferred technical solution of the present application, the blanking plugging component includes a sleeve, a lower ring, a sealing head, an upper spring, a lower spring, an upper ring, and an inner cylinder. The outer peripheral surface of the sleeve is fixed with equally spaced blanking support rods. The sleeve is a cylindrical member with a closed top and an open bottom. The lower ring is fixed to the bottom opening of the sleeve. The inner cylinder is located inside the sleeve. An upper ring is sleeved on the outer wall of the middle part of the inner cylinder. The inner cylinder is engaged with the transmission lead screw. The sealing head connected to the bottom end of the inner cylinder penetrates through the lower ring. The upper spring is fixed to the top surface of the upper ring and the sleeve, and the lower spring is fixed to the bottom surface of the upper ring and the lower ring.

[0013] As a preferred technical solution of the present application, both the upper spring and the lower spring are sleeved on the sleeve, and the outer diameter of the sealing head is the same as the inner wall of the discharge pipe.

[0014] As a preferred technical solution of the present application, a section of external thread is provided on the outer wall of the transmission lead screw, and a section of internal thread is provided on the inner wall of the inner cylinder, and the inner wall of the inner cylinder on both sides of the internal thread is smooth.

[0015] As a preferred technical solution of the present application, the guiding blocks fixed on the outer wall of the upper ring are inserted into the strip-shaped grooves provided along the length direction of the sleeve.

[0016] Technical effects and advantages of the present utility model:

[0017] The blanking assembly seals the discharge pipe. The garbage containing oil and water is poured into the pretreatment tank from the feed pipe. The garbage will be filtered by the conical strainer. The oil and water flow through the conical strainer and fall into the separation tank. The stirring assembly scrapes the garbage on the conical strainer so that the remaining oil and water can fall. After the pre-separation, the discharge pipe is opened, and the garbage is continuously scraped off by the rotating scraper and discharged from the discharge pipe into the collection tank to prevent the garbage from remaining in the pretreatment tank. Description of the drawings

[0018] Figure 1 It is the overall structure diagram in the present utility model;

[0019] Figure 2 It is the internal structure diagram of the pretreatment tank in the present utility model;

[0020] Figure 3 It is the structure diagram of the stirring assembly and the conical strainer in the present utility model;

[0021] Figure 4The sealing head in the present utility model seals the discharge pipe;

[0022] Figure 5 The sealing head in the present utility model opens the discharge pipe.

[0023] Reference numerals in the figure: 1, processing platform; 2, pretreatment tank; 21, conical strainer; 22, strainer support; 3, separation tank; 4, discharge pipe; 5, stirring assembly; 51, rotating shaft; 52, side rod; 53, scraper; 6, blanking assembly; 61, blanking support rod; 62, blanking blocking member; 621, sleeve; 622, lower ring; 623, sealing head; 624, upper spring; 625, lower spring; 626, upper ring; 627, inner cylinder; 63, transmission lead screw; 7, collection tank. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1-5 , a pretreatment device for oil-water separation, including a processing platform 1, a pretreatment tank 2 located on the processing platform 1, and a separation tank 3. The top of the pretreatment tank 2 is connected to a feed pipe. The outer wall of the pretreatment tank 2 is assembled on the processing platform 1 through a bracket. A strainer support 22 is installed at the bottom opening of the pretreatment tank 2, and the top of the conical strainer 21 fixed on the strainer support 22 covers the bottom opening of the pretreatment tank 2;

[0026] One end of the stirring assembly 5 arranged in the pretreatment tank 2 is connected to a motor on the pretreatment tank 2, and the other end of the stirring assembly 5 contacts the surface of the conical strainer 21. The top end of the discharge pipe 4 connected to the strainer support 22 is fixed to the bottom opening of the conical strainer 21, and the other end of the discharge pipe 4 passes through the separation tank 3 and the processing platform 1 and extends into the collection tank 7; The blanking assembly 6 connected to the bottom end of the stirring assembly 5 is inserted into the discharge pipe 4.

[0027] The strainer support 22 provides support for the conical strainer 21. The blanking assembly 6 seals the discharge pipe 4. The garbage containing oil and water is poured into the pretreatment tank 2 from the feed pipe. The garbage will be filtered by the conical strainer 21, and the oil and water flow through the conical strainer 21 and fall into the separation tank 3. The stirring assembly 5 scrapes the garbage on the conical strainer 21 so that the remaining oil and water can fall while scraping the garbage on the conical strainer 21 subsequently.

[0028] The four end corners of the bottom surface of the processing platform 1 are connected to the support columns. The collection tank 7 is located below the processing platform 1, and the separation tank 3 is above the processing platform 1. The opening diameter of the separation tank 3 is larger than the outer diameter of the top opening of the conical strainer 21.

[0029] The diameter of the separation tank 3 is large enough to collect all the oil and water on the conical strainer 21, preparing for subsequent separation.

[0030] The stirring assembly 5 includes a rotating shaft 51, side rods 52, and a scraping plate 53. The side rods 52 are evenly arranged around the outer wall of the rotating shaft 51. The top end of the rotating shaft 51 passes through the pretreatment tank 2 and is connected to the shaft of the motor through a coupling. The scraping plate 53 is inclined and fixed on the side rods 52, and the bottom surface of the scraping plate 53 contacts the inner wall of the conical strainer 21.

[0031] The motor is used to drive the side rods 52 and the scraping plate 53 to rotate synchronously. When the scraping plate 53 is inclined, it can still maintain close contact with the conical strainer 21 during rotation.

[0032] The feeding assembly 6 includes a feeding support rod 61, a feeding blocking component 62, and a transmission lead screw 63. The outer wall of the feeding blocking component 62 is connected to the top of the discharge pipe 4 through a plurality of fixed feeding support rods 61. One end of the transmission lead screw 63 is fixed to the bottom end of the rotating shaft 51, and the other end of the transmission lead screw 63 penetrates into the feeding blocking component 62.

[0033] The feeding blocking component 62 includes a sleeve 621, a lower ring 622, a sealing head 623, an upper spring 624, a lower spring 625, an upper ring 626, and an inner cylinder 627. The outer peripheral surface of the sleeve 621 is fixed with evenly spaced feeding support rods 61. The sleeve 621 is a cylindrical member with a closed top and an open bottom. The lower ring 622 is fixed to the bottom opening of the sleeve 621. The inner cylinder 627 is located inside the sleeve 621. An upper ring 626 is sleeved on the outer wall of the middle part of the inner cylinder 627. The inner cylinder 627 is engaged with the transmission lead screw 63. The sealing head 623 connected to the bottom end of the inner cylinder 627 penetrates through the lower ring 622. The upper spring 624 is fixed to the top surface of the upper ring 626 and the sleeve 621. The lower spring 625 is fixed to the bottom surface of the upper ring 626 and the lower ring 622.

[0034] Both the upper spring 624 and the lower spring 625 are sleeved on the sleeve 621. The outer diameter of the sealing head 623 is the same as the inner wall of the discharge pipe 4.

[0035] A section of external thread is provided on the outer wall of the transmission lead screw 63, and a section of internal thread is provided on the inner wall of the inner cylinder 627. The inner wall of the inner cylinder 627 is smooth on both sides of the internal thread. The guiding blocks fixed on the outer wall of the upper ring 626 are inserted into the strip-shaped grooves opened along the length direction of the sleeve 621.

[0036] Working principle:

[0037] The blanking and plugging component 62 controls the sealing head 623 to seal or open the discharge pipe 4 by driving the forward and reverse rotation of the rotating shaft 51 by a motor. When the motor drives the rotating shaft 51 to rotate forward, the transmission lead screw 63 also rotates synchronously, and the inner cylinder 627 descends along the strip-shaped groove. The inner cylinder 627 slowly descends to compress the lower spring 625 until the outer thread and the inner thread of the inner cylinder 627 and the rotating shaft 51 are disengaged, and the sealing head 623 is inserted into the discharge pipe 4 to seal the discharge pipe 4. Garbage is poured into the pretreatment tank 2 for preliminary separation of garbage and oil-water. Then the rotating shaft 51 continues to rotate forward, and the scraper 53 rotates continuously to drive the garbage to fluctuate, and the remaining oil-water drops from the conical screen 21. After the pretreatment is completed, the motor drives the rotating shaft 51 to rotate reversely. The rotation direction of the rotating shaft 51 is opposite to the thread direction of the inner cylinder 627. Under the elastic force of the lower spring 625, the inner cylinder 627 slowly rises to drive the sealing head 623 to disengage from the discharge pipe 4 until the inner cylinder 627 moves upward to disengage from the inner thread. The upper spring 624 is compressed and the lower spring 625 is stretched. The thread of the inner cylinder 627 and the rotation direction of the rotating shaft 51 are the same. The scraper 53 always rotates, and continuously scrapes the garbage off and discharges it from the discharge pipe 4 into the collection tank 7 to prevent garbage from remaining in the pretreatment tank 2.

[0038] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pretreatment device for oil-water separation, comprising a processing platform (1), a pretreatment tank (2) located on the processing platform (1), and a separation tank (3). The top of the pretreatment tank (2) is connected to a feed pipe, and the outer wall of the pretreatment tank (2) is assembled on the processing platform (1) through a bracket, characterized in that: A wire mesh support (22) is installed at the bottom opening of the pretreatment tank (2), and the top of the conical wire mesh (21) fixed on the wire mesh support (22) covers the bottom opening of the pretreatment tank (2); One end of a stirring assembly (5) arranged in the pretreatment tank (2) is connected to a motor on the pretreatment tank (2), the other end of the stirring assembly (5) is in contact with the surface of the conical wire mesh (21), the top of a discharge pipe (4) connected to the wire mesh support (22) is fixed to the bottom opening of the conical wire mesh (21), and the other end of the discharge pipe (4) passes through the separation tank (3) and the processing platform (1) and extends into the collection tank (7); A feeding assembly (6) connected to the bottom end of the stirring assembly (5) is inserted into the discharge pipe (4).

2. The pretreatment device for oil-water separation according to claim 1, characterized in that, The four end corners of the bottom surface of the processing platform (1) are connected to support columns, the collection tank (7) is located below the processing platform (1), the separation tank (3) is above the processing platform (1), and the opening diameter of the separation tank (3) is larger than the outer diameter of the top opening of the conical wire mesh (21).

3. The pretreatment device for oil-water separation according to claim 1, characterized in that, The stirring assembly (5) includes a rotating shaft (51), side rods (52) and a scraper (53). The side rods (52) are equally spaced around the outer wall of the rotating shaft (51). The top end of the rotating shaft (51) passes through the pretreatment tank (2) and is connected to the shaft of the motor through a coupling. The scraper (53) is obliquely fixed on the side rods (52), and the bottom surface of the scraper (53) is in contact with the inner wall of the conical wire mesh (21).

4. The pretreatment device for oil-water separation according to claim 1, characterized in that, The feeding assembly (6) includes a feeding support rod (61), a feeding blocking component (62) and a transmission lead screw (63). The outer wall of the feeding blocking component (62) is connected to the top of the discharge pipe (4) through a plurality of fixed feeding support rods (61). One end of the transmission lead screw (63) is fixed to the bottom end of the rotating shaft (51), and the other end of the transmission lead screw (63) penetrates into the feeding blocking component (62).

5. The pretreatment device for oil-water separation according to claim 4, wherein, The feeding blocking component (62) includes a sleeve (621), a lower ring (622), a sealing head (623), an upper spring (624), a lower spring (625), an upper ring (626) and an inner cylinder (627). The outer peripheral surface of the sleeve (621) is fixed with equally spaced feeding support rods (61). The sleeve (621) is a cylindrical member with a closed top and an open bottom. The lower ring (622) is fixed to the bottom opening of the sleeve (621). The inner cylinder (627) is located inside the sleeve (621). An upper ring (626) is sleeved on the middle outer wall of the inner cylinder (627). The inner cylinder (627) is engaged with the transmission lead screw (63). The sealing head (623) connected to the bottom end of the inner cylinder (627) passes through the lower ring (622). The upper spring (624) is fixed to the top surface of the upper ring (626) and the sleeve (621). The lower spring (625) is fixed to the bottom surface of the upper ring (626) and the lower ring (622).

6. The pretreatment device for oil-water separation according to claim 5, characterized in that, Both the upper spring (624) and the lower spring (625) are sleeved on the sleeve (621), and the outer diameter of the sealing head (623) is the same as the inner wall of the discharge pipe (4).

7. A pretreatment device for oil-water separation according to claim 4, characterized in that, An external thread is provided on the outer wall of the transmission lead screw (63), and an internal thread is provided on the inner wall of the inner cylinder (627). The inner wall of the inner cylinder (627) on both the upper and lower sides of the internal thread is smooth.

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