Oil sludge separation and processing device

Abstract

The present invention relates to the field of oil sludge treatment, and in particular to an oil sludge separation and treatment device, comprising a separation box, a feed pipe, a liquid inlet pipe, a liquid outlet pipe and a stirring roller, wherein the top of the separation box is penetrated by a feed pipe and a liquid inlet pipe, the feed pipe is used to feed the oil sludge, the liquid inlet pipe is used to feed the extractant, the bottom of the separation box is penetrated by a liquid outlet pipe, the liquid outlet pipe is used to send out oil, a filter screen for intercepting the oil sludge is installed at the inlet of the liquid outlet pipe, the stirring roller is installed in the separation box, and the stirring roller is driven to rotate by an external motor; the present invention not only realizes the combination of extraction stirring and extrusion liquid discharge, so that the oil sludge does not need to be transferred, reducing the occupied space of the equipment and the subsequent maintenance cost, but also can use the stirring roller and the vertical rod located in the oil sludge as extrusion components, so that the oil sludge is separated on both sides of the stirring roller for extrusion, so that the effective extrusion area is increased, and the liquid can be squeezed out faster.

Description

Technical Field

[0001] The invention relates to the field of oil sludge treatment, and in particular to an oil sludge separation and treatment device. Background Art

[0002] Oily sludge is the abbreviation of oily sludge, which is the oily solid waste generated during oil extraction, transportation, refining and oily wastewater treatment. Before treating the oily sludge, it is generally necessary to pre-treat the oily sludge to filter out the oil in the oily sludge as much as possible, and then treat the remaining sludge.

[0003] For example, Chinese patent CN220665154U discloses a sludge separation pretreatment device, which does not need to be settled and liquid collected after extraction. The oil and organic solvent in the sludge can be directly filtered through a screen and discharged from a drain pipe, and can work continuously and uninterruptedly. The filtered sludge is subsequently discharged into a compression box for extrusion and drainage. However, the extraction and extrusion drainage operations are processed at two different locations, which not only occupies a large space and has a high investment cost, but also requires water to be added during the process to facilitate the transfer of the sludge, which increases the workload of subsequent extrusion and drainage, and the overall processing flow is not yet perfect. Summary of the invention

[0004] In order to overcome the shortcoming that the processing flow of the existing oil sludge pretreatment and separation equipment is still imperfect, the present invention provides an oil sludge separation and treatment device.

[0005] The technical scheme is: an oil sludge separation and processing device, comprising a separation box, a feed pipe, a liquid inlet pipe, a liquid outlet pipe and a stirring roller, wherein the top of the separation box is penetrated by a feed pipe and a liquid inlet pipe, the feed pipe is used to feed the oil sludge, the liquid inlet pipe is used to feed the extractant, the bottom of the separation box is penetrated by a liquid outlet pipe, the liquid outlet pipe is used to send out the oil, a filter screen for intercepting the oil sludge is installed at the inlet of the liquid outlet pipe, the stirring roller is installed in the separation box, and the stirring roller is driven to rotate by an external motor; further comprising: a telescopic driving member 1, the telescopic driving member 1 is provided with two, and the two telescopic driving members 1 are symmetrically installed on the two side walls of the separation box; an extrusion plate, the extrusion plate is provided with two, the two extrusion plates are symmetrically distributed in the separation box, the telescopic end of the telescopic driving member 1 penetrates into the separation box, and the two extrusion plates are respectively installed on the telescopic end of one telescopic driving member 1; a discharging module, the discharging module is arranged at the bottom of the separation box, and the discharging module is used to discharge the squeezed oil sludge.

[0006] As a further preferred embodiment, two rows of vertical rods are symmetrically installed on the outer surface of the stirring roller, and the vertical rods are used for stirring. When the sludge is squeezed by the squeezing plate, the two rows of vertical rods are located in the same vertical plane through the rotation of the stirring roller.

[0007] As a further preferred solution, the extrusion surfaces of the two extrusion plates are configured as curved surfaces.

[0008] As a further preferred solution, a cross bar is installed at one end of each of the vertical bars away from the stirring roller, and the cross bars on the same row of the vertical bars fit together.

[0009] As a further preferred scheme, a cavity one is opened in each of the vertical rods in a row, and a cavity two is opened in the horizontal rod connected to the vertical rod with cavity one, and cavity one and cavity two correspond one to one and are interconnected, and the oil in the sludge flows into from the opening of cavity one and flows out from the opening of cavity two, and filters for intercepting the sludge are provided at the openings of cavity one and cavity two.

[0010] As a further preferred solution, the opening of the cavity one is located on the side of the vertical rod, and the opening of the cavity one is not directly opposite to the extrusion plate.

[0011] As a further preferred solution, one end of the cross bar away from the vertical bar is in a pointed cone shape, which serves to drain the liquid in the oil sludge downward.

[0012] As a further preferred solution, a groove is provided on the inner bottom wall of the separation box, the groove is a curved surface, and the inlet of the liquid outlet pipe is located at the groove, so that the liquid in the sludge can be collected at the groove and discharged.

[0013] As a further preferred scheme, the discharging module includes a telescopic driving member 2 and a discharging plate. The telescopic driving member 2 is provided with two, and the telescopic ends of the two telescopic driving members 2 are commonly connected to the discharging plate. The bottom plate of the separation box body is provided with a through groove, and the discharging plate is located at the through groove. When the discharging plate moves downward and leaves the through groove, the compressed sludge passes through the through groove of the bottom plate of the separation box body and is discharged downward.

[0014] As a further preferred solution, the through groove provided on the bottom plate of the separation box is located at the groove, and the upper surface of the discharge plate cooperates with the groove to form a complete curved surface.

[0015] The present invention has the following advantages: the present invention not only realizes the combination of extraction stirring and extrusion drainage, so that the oil sludge does not need to be transferred, reducing the space occupied by the equipment and the subsequent maintenance cost, but also can use the stirring roller and the vertical rod located in the oil sludge as extrusion components, so that the oil sludge is separated on both sides of the stirring roller for extrusion, so that the effective area of ​​extrusion is increased, and the liquid can be squeezed out faster.

[0016] The present invention designs a movable and adjustable extrusion plate. When the amount of oil sludge to be processed is small, the operator can control the two extrusion plates to move closer to each other, so that the lateral span of the space between the two extrusion plates is reduced, so that a small amount of oil sludge can be concentrated and accumulated within the vertical range of the stirring roller and the vertical rod, thereby ensuring the stirring effect of the stirring roller and the vertical rod on the small amount of oil sludge.

[0017] The invention stirs the squeezed oil sludge by having the vertical rod rotate synchronously with the stirring roller, so that the oil sludge is stirred and loosened and can be discharged more easily.

[0018] The present invention provides a downward flow path for the liquid inside the oil sludge, which eliminates the need for the liquid to seep out layer by layer, thereby improving the efficiency of the liquid seepage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 What is shown is a schematic diagram of the three-dimensional structure of the oil sludge separation and treatment device of the present invention;

[0020] Figure 2 What is shown is a schematic diagram of the internal three-dimensional structure of the separation box of the present invention;

[0021] Figure 3 What is shown is a schematic diagram of the combined three-dimensional structure of the stirring roller, the vertical rod and the horizontal rod of the present invention;

[0022] Figure 4 What is shown is a schematic diagram of the combined three-dimensional structure of the vertical rod and the horizontal rod of the present invention;

[0023] Figure 5 What is shown is a schematic diagram of the three-dimensional structure of the groove of the present invention;

[0024] Figure 6 What is shown is a schematic diagram of the combined three-dimensional structure of the telescopic driving member 2 and the discharge plate of the present invention.

[0025] Among them: 1-separation box, 101-groove, 2-feeding pipe, 3-liquid inlet pipe, 4-liquid outlet pipe, 5-telescopic driving member 1, 6-extrusion plate, 7-stirring roller, 8-vertical rod, 801-cavity 1, 9-cross rod, 901-cavity 2, 10-telescopic driving member 2, 11-discharging plate. DETAILED DESCRIPTION

[0026] The technical solution is further described below in conjunction with specific embodiments. It should be noted that the words indicating directions such as up, down, left, and right mentioned in this article are only for the position of the structure shown in the corresponding drawings. The serial numbers of the parts in this article, such as first, second, etc., are only used to distinguish the objects described and do not have any order or technical meaning. The words such as connection and coupling in this application include direct and indirect connection (coupling) unless otherwise specified.

[0027] Example 1

[0028] A sludge separation and processing device, such as Figure 1-Figure 5 As shown, it comprises a separation box 1, a feed pipe 2, a liquid inlet pipe 3, a liquid outlet pipe 4 and a stirring roller 7. The feed pipe 2 and the liquid inlet pipe 3 are installed through the top of the separation box 1, and the liquid outlet pipe 4 is installed through the bottom of the separation box 1. A filter screen for intercepting sludge is installed at the inlet of the liquid outlet pipe 4. The stirring roller 7 is installed in the separation box 1 and driven to rotate by an external motor.

[0029] Also includes:

[0030] A telescopic driving member 5, wherein two telescopic driving members 5 are provided, and the two telescopic driving members 5 are symmetrically mounted on the two side walls of the separation box 1, and the telescopic driving member 5 is a hydraulic push rod;

[0031] Extrusion plates 6, two of which are provided, and the two extrusion plates 6 are symmetrically distributed in the separation box 1, the telescopic end of the telescopic driving member 5 penetrates into the separation box 1, and the two extrusion plates 6 are respectively installed on the telescopic end of one of the telescopic driving members 5;

[0032] A discharging module is arranged at the bottom of the separation box 1 .

[0033] Two rows of vertical rods 8 are symmetrically mounted on the outer circumference of the stirring roller 7 , and the vertical rods 8 are used for stirring.

[0034] The extrusion surfaces of the two extrusion plates 6 are configured as curved surfaces.

[0035] A cross bar 9 is installed at one end of each of the vertical bars 8 away from the stirring roller 7 , and the cross bars 9 on the same row of the vertical bars 8 fit together.

[0036] The feed pipe 2, the liquid inlet pipe 3 and the liquid outlet pipe 4 are all provided with electromagnetic valves for controlling connection and closure.

[0037] In this embodiment, the oil sludge to be treated is first added into the separation box 1 through the feed pipe 2, and then the extractant for extracting the oil in the oil sludge is added into the separation box 1 through the liquid inlet pipe 3. The specific selection of the extractant is common knowledge in the art and will not be repeated here. Then, the stirring roller 7 is driven by a motor to rotate, and the oil sludge is stirred by the vertical rod 8 to break up the oil sludge so that it is fully mixed with the extractant. After mixing for a specified time, the solenoid valve in the liquid outlet pipe 4 is controlled to open, so that the liquid flows out of the liquid outlet pipe 4, thereby completing the preliminary separation of the liquid in the oil sludge.

[0038] Then, the stirring roller 7 is rotated so that the two rows of vertical rods 8 are located in the same vertical plane. Figure 2As shown, the telescopic driving member 15 is then controlled to drive the squeezing plate 6 to move, so that the two squeezing plates 6 move closer to each other, thereby squeezing the oil sludge and squeezing out the liquid in the oil sludge. This not only realizes the combination of extraction stirring and squeezing and liquid discharge, so that the oil sludge does not need to be transferred, reducing the space occupied by the equipment and the subsequent maintenance cost, but also can make the stirring roller 7 and the vertical rod 8 located in the oil sludge act as squeezing components, so that the oil sludge is separated on both sides of the stirring roller 7 for squeezing, so that the effective area of ​​squeezing is increased, and the liquid can be squeezed out faster;

[0039] When the sludge is extruded, the extruded sludge is discharged through the discharging module.

[0040] Furthermore, when the amount of sludge to be processed is small, the sludge will only be located at the inner bottom of the separation box 1, that is, the lower half. At this time, the effective stirring range of the stirring roller 7 and the vertical rod 8 is limited, that is, when the vertical rod 8 rotates to the upper half of the separation box 1, the sludge cannot be stirred. Therefore, when encountering this situation, the operator can control the two extrusion plates 6 to move closer to each other, so that the lateral span of the space between the two extrusion plates 6 is reduced, so that a small amount of sludge can be concentrated and accumulated in the vertical range of the stirring roller 7 and the vertical rod 8, thereby ensuring the stirring effect of the stirring roller 7 and the vertical rod 8 on a small amount of sludge.

[0041] Furthermore, the extrusion surface of the extrusion plate 6 is set to a curved surface, so that when processing a small amount of sludge as mentioned above, the space between the two extrusion plates 6 can be enclosed into a cylindrical shape that is compatible with the rotation range of the vertical rod 8, thereby further improving the stirring effect.

[0042] Furthermore, considering that the sludge is easy to agglomerate into lumps after being squeezed and cannot be discharged quickly, when discharging the squeezed sludge, the operator controls the stirring roller 7 to rotate, and the vertical rod 8 follows the synchronous rotation of the stirring roller 7 to stir the squeezed sludge, so that the sludge is stirred and loosened and is easier to discharge, and the sludge on the stirring roller 7 and the vertical rod 8 can also be thrown off, and the two extrusion plates 6 are controlled to move to the specified position in advance, so that a row of cross bars 9 that are fitted to each other can scrape the extrusion surface of the extrusion plate 6 when rotating with the vertical rod 8. Therefore, setting the extrusion surface of the extrusion plate 6 as a curved surface can also adapt to the rotational motion trajectory of the cross bar 9, thereby scraping off the sludge on the extrusion surface of the extrusion plate 6 and improving the discharge efficiency of the sludge.

[0043] Example 2

[0044] On the basis of Example 1, Figure 1-Figure 5As shown, a cavity 1 801 is opened in one row of the vertical rods 8, and a cavity 2 901 is opened in the horizontal rod 9 connected to the vertical rod 8 with the cavity 1 801. The cavity 1 801 corresponds to the cavity 2 901 one by one and is interconnected. Filters for intercepting sludge are provided at the openings of the cavity 1 801 and the cavity 2 901.

[0045] The opening of the cavity 1 801 is located on the side of the vertical rod 8 , and the opening of the cavity 1 801 is not directly opposite to the extrusion plate 6 .

[0046] One end of the cross bar 9 away from the vertical bar 8 is in a pointed cone shape.

[0047] A groove 101 is provided at the inner bottom wall of the separation box 1 . The groove 101 is a curved surface, and the inlet of the liquid outlet pipe 4 is located at the groove 101 , so that the liquid in the sludge can be collected at the groove 101 and discharged.

[0048] In this embodiment, considering that it is difficult for the liquid inside the sludge to seep out quickly when the sludge is squeezed intensively, cavity one 801 and cavity two 901 are designed. When the stirring roller 7 and the vertical rod 8 located in the sludge act as squeezing components, a row of vertical rods 8 with cavity one 801 is located at the lower position, and the liquid inside the sludge can be squeezed into cavity one 801, and then flow through cavity two 901 to be discharged downward, thereby providing a downward flow path for the liquid inside the sludge, without the need to seep out layer by layer, thereby improving the efficiency of liquid seepage.

[0049] Furthermore, in order to reduce the pressure on the filter at the opening of cavity 1 801 when squeezing the sludge, the opening of cavity 1 801 is set on the side that is not directly opposite to the extrusion plate 6, so that the filter at the opening of cavity 1 801 will not be directly subjected to the extrusion force of the extrusion plate 6, and at this time, the cross bar 9 is located in the groove 101, and the filter at the opening of cavity 2 901 will not be directly subjected to the extrusion force of the extrusion plate 6.

[0050] Furthermore, a groove 101 is opened on the inner bottom wall of the separation box 1. When the two extrusion plates 6 move to the two side edges of the groove 101, the curved surfaces of the two extrusion plates 6 can cooperate with the curved groove 101 to form an arc, and the arc matches the rotation trajectory of the cross bar 9, so that all the sludge between the two extrusion plates 6 can be discharged during the rotation of the cross bar 9.

[0051] Example 3

[0052] On the basis of Example 2, Figure 1-Figure 6As shown, the discharging module includes a telescopic driving member 10 and a discharging plate 11. The telescopic driving member 10 is a hydraulic push rod. Two telescopic driving members 10 are provided. The telescopic ends of the two telescopic driving members 10 are commonly connected to the discharging plate 11. A through groove is opened on the bottom plate of the separation box 1, and the discharging plate 11 is located at the through groove.

[0053] The through groove formed on the bottom plate of the separation box 1 is located at the groove 101 , and the upper surface of the discharge plate 11 cooperates with the groove 101 to form a complete curved surface.

[0054] In this embodiment, when the squeezed sludge needs to be discharged, the telescopic driving member 10 is controlled to drive the discharge plate 11 to move downward, so that the discharge plate 11 leaves the through groove of the bottom plate of the separation box 1, so that the squeezed sludge is discharged downward along the through groove, and at the same time, the rotation of the cross bar 9 is cooperated to discharge all the sludge.

[0055] The technical principles of the embodiments of the present invention are described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the embodiments of the present invention and cannot be interpreted in any way as limiting the protection scope of the embodiments of the present invention. Based on the explanations herein, those skilled in the art can think of other specific implementation methods of the embodiments of the present invention without creative work, and these methods will fall within the protection scope of the embodiments of the present invention.

Claims

1. An oil sludge separation and treatment device, comprising a separation box (1), a feed pipe (2), a liquid inlet pipe (3), a liquid outlet pipe (4) and a stirring roller (7), wherein the top of the separation box (1) is provided with a feed pipe (2) and a liquid inlet pipe (3), wherein the feed pipe (2) is used to feed oil sludge, and the liquid inlet pipe (3) is used to feed an extractant, and the bottom of the separation box (1) is provided with a liquid outlet pipe (4), wherein the liquid outlet pipe (4) is used to feed oil, and a filter screen for intercepting oil sludge is provided at the inlet of the liquid outlet pipe (4), and the stirring roller (7) is provided in the separation box (1), and the stirring roller (7) is driven to rotate by an external motor; Features: Also includes: A telescopic driving member (5), wherein two telescopic driving members (5) are provided, and the two telescopic driving members (5) are symmetrically mounted on two side walls of the separation box (1); An extrusion plate (6), wherein two extrusion plates (6) are provided, and the two extrusion plates (6) are symmetrically distributed in the separation box (1); the telescopic end of the telescopic driving member (5) penetrates into the separation box (1), and the two extrusion plates (6) are respectively mounted on the telescopic end of one telescopic driving member (5); A discharge module, the discharge module being arranged at the bottom of the separation box (1), and being used to discharge the squeezed sludge; Two rows of vertical rods (8) are symmetrically mounted on the outer circumference of the stirring roller (7), and the vertical rods (8) are used for stirring. When the oil sludge is squeezed by the squeezing plate (6), the stirring roller (7) is rotated so that the two rows of vertical rods (8) are located on the same vertical plane; A cross bar (9) is installed at one end of each of the vertical bars (8) away from the stirring roller (7), and the cross bars (9) on the same row of the vertical bars (8) are in contact with each other; A cavity one (801) is formed in each of the vertical rods (8) in one row, and a cavity two (901) is formed in the horizontal rod (9) connected to the vertical rod (8) having the cavity one (801). The cavity one (801) corresponds to the cavity two (901) one by one and is interconnected. The oil in the sludge flows in from the opening of the cavity one (801) and flows out from the opening of the cavity two (901). Filters for intercepting the sludge are provided at the openings of the cavity one (801) and the cavity two (901).

2. The oil sludge separation and processing device according to claim 1, characterized in that: The extrusion surfaces of the two extrusion plates (6) are arranged as curved surfaces.

3. The oil sludge separation and processing device according to claim 2, characterized in that: The opening of the cavity one (801) is located on the side of the vertical rod (8), and the opening of the cavity one (801) is not directly opposite to the extrusion plate (6).

4. The oil sludge separation and processing device according to claim 2, characterized in that: The end of the cross bar (9) away from the vertical bar (8) is in a pointed cone shape, which serves to drain the liquid in the oil sludge downward.

5. The oil sludge separation and processing device according to claim 4, characterized in that: A groove (101) is provided on the inner bottom wall of the separation box (1), the groove (101) being a curved surface, and the inlet of the liquid outlet pipe (4) is located at the groove (101), so that liquid in the sludge can be collected at the groove (101) and discharged.

6. The oil sludge separation and processing device according to claim 5, characterized in that: The discharge module comprises a telescopic drive member 2 (10) and a discharge plate (11), wherein two telescopic drive members 2 (10) are provided, and the telescopic ends of the two telescopic drive members 2 (10) are commonly connected to the discharge plate (11), and a through groove is provided on the bottom plate of the separation box (1), and the discharge plate (11) is located at the through groove. When the discharge plate (11) moves downward and leaves the through groove, the compressed sludge passes through the through groove of the bottom plate of the separation box (1) and is discharged downward.

7. The oil sludge separation and processing device according to claim 6, characterized in that: The through groove formed on the bottom plate of the separation box body (1) is located at the groove (101), and the upper surface of the discharge plate (11) cooperates with the groove (101) to form a complete curved surface.

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