A solid-liquid separation device for oil sludge treatment

Abstract

This utility model relates to the technical field of oil sludge separation devices, specifically to a solid-phase and liquid-phase separation device for oil sludge treatment. It includes an oil sludge crushing box, an oil-liquid separation box installed at the bottom of the crushing box, and a box cover installed at the top of the crushing box. A crushing mechanism is fixed to the top of the box cover and penetrates through the crushing box into the oil-liquid separation box. A separation mechanism is installed between the crushing box and the oil sludge crushing box, penetrating into the oil-liquid separation box. A filter plate is bolted to the inside of the crushing box. This utility model achieves crushing and stirring of the oil sludge through the cooperation of the internal parts of the crushing mechanism, and compresses the crushed sludge to better separate the oil and water within the sludge. The separation of oil and water is achieved through the cooperation of the internal parts of the separation mechanism, creating separate oil and water layers for easier separation and discharge.

Description

Technical Field

[0001] This utility model relates to the technical field of oil sludge separation devices, specifically to a solid-liquid phase separation device for oil sludge treatment. Background Technology

[0002] Oil sludge is short for oily sludge, which is oily solid waste generated during oil extraction, transportation, refining, and oily wastewater treatment. Before treating oil sludge, it is generally necessary to pre-treat it to filter out as much oil as possible, and then treat the remaining sludge to reduce environmental pollution.

[0003] A search revealed a utility model patent, CN 221131303 U, for a solid-liquid separation device for oil sludge treatment. The device includes a solid-liquid separation cylinder with a support frame connected to its outer wall and a sealing cap on its top. A collection hopper is installed at the bottom of the cylinder, and a bearing ring seat is installed at the edge of the top opening. An inner separation cylinder is installed inside the cylinder, and several sets of evenly spaced, ring-shaped connecting frames are installed on its inner wall. The ends of each connecting frame are coaxially connected and linked to a rotating column. This utility model uses a motor to drive the inner separation cylinder to rotate at high speed, thereby achieving solid-liquid separation of oil sludge. The separation speed is fast and the efficiency is high. The separated liquid is collected through the collection hopper. The height of the motor is adjusted by a lifting cylinder and a piston rod, making it convenient to use and easy to add raw materials and for subsequent processing. The inner separation cylinder and the bearing ring seat are connected by an insert joint, facilitating installation and disassembly.

[0004] Although the aforementioned patent uses a lifting cylinder and piston rod to adjust the height of the motor, making it convenient to use and easy to add raw materials and perform subsequent processing, and the inner cylinder and bearing ring seat are connected by an insertion joint, making it easy to install or disassemble, the existing separation device only separates the sludge by centrifugal force and cannot crush and stir the sludge. As a result, the oil and water inside large pieces of sludge cannot be effectively separated from the sludge, affecting the oil and water separation effect in the sludge.

[0005] Therefore, it is necessary to propose a solid-liquid phase separation device for oil sludge treatment to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a solid-liquid phase separation device for oil sludge treatment. Through the cooperation of the internal parts of the crushing mechanism, the oil sludge can be crushed and stirred, and the crushed oil sludge can be squeezed to better separate the oil and water in the oil sludge. Through the cooperation of the internal parts of the separation mechanism, the oil and water can be separated into layers, which facilitates the separation and discharge of oil and water. This solves the problem that the existing separation device only separates oil sludge by centrifugal force and cannot crush and stir the oil sludge, resulting in the oil and water inside large pieces of oil sludge not being effectively separated from the oil sludge, thus affecting the oil-water separation effect in the oil sludge.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a solid-liquid phase and liquid-liquid phase separation device for oil sludge treatment, comprising an oil sludge crushing box, an oil-liquid separation box installed at the bottom of the oil sludge crushing box, a box cover installed at the top of the oil sludge crushing box, a crushing mechanism fixed at the top of the box cover and penetrating through the oil sludge crushing box to the interior of the oil-liquid separation box, a separation mechanism installed between the oil-liquid separation box and the oil sludge crushing box and penetrating through the interior of the oil-liquid separation box, and a filter plate fixed inside the oil sludge crushing box by bolts;

[0008] The crushing mechanism includes a connecting rod located inside the sludge crushing box and the oil-liquid separation box, and below the filter plate. A spiral blade is fixedly fitted onto the outer wall of the connecting rod. An sludge filter ring is fitted onto the outer wall of the connecting rod and the spiral blade and fixed inside the sludge crushing box and the oil-liquid separation box.

[0009] The separation mechanism includes a connecting pipe located between the bottom of the sludge crushing box and the top of the oil-liquid separation box, and sleeved with the outer wall of the sludge filter ring. The oil-liquid separation box has a separation chamber installed inside, which is rotatably connected to the outer wall of the sludge filter ring. The bottom ends of the separation chambers are mechanically connected to a docking bracket located inside the sludge filter ring. The bottom end of the connecting rod is mechanically fixed with a docking column, and the docking bracket is sleeved with the outer wall of the docking column.

[0010] Preferably, the crushing mechanism further includes a servo motor, which is fixed to the top of the box cover by bolts. The output end of the servo motor is mechanically connected to a transmission rod via a coupling and is rotatably connected to the bottom of the box cover. The filter plate is sealed to the outer wall of the transmission rod. Stirring rods are mechanically fixed around the outer wall of the transmission rod. The top end of the connecting rod is mechanically fixed to the bottom end of the transmission rod.

[0011] Preferably, an oil sludge pipe is installed on one side of the oil sludge crushing box, and an oil drain pipe and a drain pipe are respectively installed on both sides of the outer wall of the oil-liquid separator, with a certain height difference between the oil drain pipe and the drain pipe, and a sludge discharge pipe controlled by a control valve is installed at the bottom of the oil-liquid separator.

[0012] Preferably, the surface of the filter plate is provided with a connecting hole that matches the transmission rod, the outer diameter of the spiral blade is smaller than the outer diameter of the transmission rod, and a certain gap is left between the outer wall of the sludge filter ring and the inner wall of the connecting pipe.

[0013] Preferably, the surface of the docking bracket is provided with docking holes that match the docking column, the separation chamber is rotatably connected to the outer wall of the sludge filter ring through a bearing, and sealing rings are provided at the connection between the separation chamber and the docking bracket, and at the connection between the box cover and the top of the sludge crushing box.

[0014] Preferably, the diameter of the filter holes on the outer wall of the separation chamber is smaller than the diameter of the filter holes at the bottom of the separation chamber, and the bottom of the filter plate and the interior of the sludge crushing box are provided with inclined drainage channels.

[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0016] 1. By conveying the oil sludge into the oil sludge crushing box and closing the box cover, the servo motor is started, which drives the transmission rod to rotate. The rotation of the transmission rod drives the stirring rod to rotate, which crushes and stirs the oil sludge in the oil sludge crushing box, thus crushing large pieces of oil sludge. At the same time, the crushed oil sludge is initially filtered for impurities through the filter plate and falls into the connecting pipe. The rotation of the transmission rod drives the connecting rod to rotate, which in turn drives the spiral blades to rotate. The spiral blades squeeze the oil sludge inside the oil sludge filter ring, forcing the oil and water out of the oil sludge. After being filtered through the oil sludge filter ring, the oil flows into the oil-liquid separation box inside the connecting pipe.

[0017] 2. Oil and water flow into the oil-water separator through the connecting pipe and drip into the separator chamber. The connecting rod then drives the docking column through the docking bracket, limiting the connection between the docking column and the docking bracket. The connecting rod rotates, which in turn drives the docking bracket to rotate, and in turn drives the separator chamber to rotate. This allows the oil and water in the separator chamber to be separated by centrifugal force. The diameter of the filter holes on the outer wall of the separator chamber is smaller than that at the bottom of the separator chamber, which facilitates the filtration of the oil layer on the outer wall and the filtration of the water layer at the bottom of the separator chamber. This completes the oil-water separation and allows the oil and water layers to be discharged separately. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a cross-sectional structural diagram of the sludge crushing box and the oil-liquid separation box of this utility model;

[0021] Figure 3 This is an exploded cross-sectional view of the connecting rod and docking bracket of this utility model.

[0022] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Oil sludge crushing box; 101. Oil-liquid separation box; 102. Box cover; 2. Crushing mechanism; 201. Servo motor; 202. Transmission rod; 203. Stirring rod; 204. Connecting rod; 205. Spiral blade; 206. Oil sludge filter ring; 3. Separation mechanism; 301. Connecting pipe; 302. Separation chamber; 303. Docking bracket; 304. Docking column; 4. Filter plate. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] This utility model provides, for example Figure 1-4 The solid-liquid phase separation device for oil sludge treatment shown includes an oil sludge crushing box 1, an oil-liquid separation box 101 installed at the bottom of the oil sludge crushing box 1, a box cover 102 installed at the top of the oil sludge crushing box 1, a crushing mechanism 2 fixed at the top of the box cover 102 and penetrating the oil sludge crushing box 1 to the interior of the oil-liquid separation box 101, a separation mechanism 3 installed between the oil-liquid separation box 101 and the oil sludge crushing box 1 and penetrating the interior of the oil-liquid separation box 101, and a filter plate 4 fixed inside the oil sludge crushing box 1 by bolts.

[0027] The crushing mechanism 2 includes a connecting rod 204, which is located inside the sludge crushing box 1 and the oil-liquid separation box 101, and below the filter plate 4. A spiral blade 205 is sleeved and fixed on the outer wall of the connecting rod 204, and an sludge filter ring 206 is sleeved on the outer wall of the connecting rod 204 and the spiral blade 205 and fixed inside the sludge crushing box 1 and the oil-liquid separation box 101.

[0028] The separation mechanism 3 includes a connecting pipe 301, which is located between the bottom end of the sludge crushing box 1 and the top end of the oil-liquid separation box 101 and is sleeved with the outer wall of the sludge filter ring 206. The oil-liquid separation box 101 is equipped with a separation chamber 302, which is rotatably connected to the outer wall of the sludge filter ring 206. The bottom ends of the separation chambers 302 are mechanically connected to a docking bracket 303, which is located inside the sludge filter ring 206. The bottom end of the connecting rod 204 is mechanically fixed with a docking column 304, and the docking bracket 303 is sleeved with the outer wall of the docking column 304.

[0029] By cooperating with each other among the internal parts of the crushing mechanism 2, the oil sludge can be crushed and stirred, and the crushed oil sludge can be squeezed to better separate the oil and water in the oil sludge. By cooperating with each other among the internal parts of the separation mechanism 3, the oil and water can be separated into layers, which facilitates the separation and discharge of oil and water.

[0030] Refer to the instruction manual appendix Figure 1-4 The crushing mechanism 2 also includes a servo motor 201, which is fixed to the top of the box cover 102 by bolts. The output end of the servo motor 201 is mechanically connected to the transmission rod 202 through a coupling and is rotatably connected to the bottom end of the box cover 102. The filter plate 4 is sealed to the outer wall of the transmission rod 202. The outer wall of the transmission rod 202 is mechanically fixed with stirring rods 203. The top end of the connecting rod 204 is mechanically fixed to the bottom end of the transmission rod 202. Through the cooperation between the internal parts of the crushing mechanism 2, the stirring rods 203 can be easily stirred and crushed inside the oil sludge crushing box 1.

[0031] Refer to the instruction manual appendix Figure 1-4 An oil sludge pipe is installed on one side of the oil sludge crushing box 1. An oil drain pipe and a drain pipe are installed on both sides of the outer wall of the oil-liquid separator 101, and there is a certain height difference between the oil drain pipe and the drain pipe. A sludge discharge pipe controlled by a control valve is installed at the bottom of the oil-liquid separator 101. The oil drain pipe and the drain pipe are installed on both sides of the outer wall of the oil-liquid separator 101, and there is a certain height difference between the oil drain pipe and the drain pipe, which facilitates the separation and discharge of oil and water after the oil and water are separated.

[0032] Refer to the instruction manual appendix Figure 1-4 The surface of the filter plate 4 is provided with a connection hole that matches the transmission rod 202. The outer diameter of the spiral blade 205 is smaller than the outer diameter of the transmission rod 202. A certain gap is left between the outer wall of the sludge filter ring 206 and the inner wall of the connecting pipe 301. The spiral blade 205 rotates inside the sludge filter ring 206, squeezing the sludge and allowing the oil and water in the sludge to be filtered and separated by the sludge filter ring 206.

[0033] Refer to the instruction manual appendix Figure 1-4 The surface of the docking bracket 303 is provided with docking holes that match the docking column 304. The separation chamber 302 is rotatably connected to the outer wall of the sludge filter ring 206 through a bearing. Sealing rings are provided at the connection between the separation chamber 302 and the docking bracket 303, and at the connection between the box cover 102 and the top of the sludge crushing box 1. The docking bracket 303 is provided with docking holes that match the docking column 304. The separation chamber 302 is rotatably connected to the outer wall of the sludge filter ring 206 through a bearing, which facilitates the connecting rod 204 to drive the docking column 304 to penetrate into the interior of the docking bracket 303, thereby driving the separation chamber 302 to rotate.

[0034] Refer to the instruction manual appendix Figure 1-4 The diameter of the filter holes on the outer wall of the separation chamber 302 is smaller than the diameter of the filter holes at the bottom of the separation chamber 302. The bottom of the filter plate 4 and the interior of the sludge crushing box 1 are provided with inclined drainage channels. Since the diameter of the filter holes on the outer wall of the separation chamber 302 is smaller than the diameter of the filter holes at the bottom of the separation chamber 302, it is convenient for the outer wall of the separation chamber 302 to filter the oil layer, while the bottom of the separation chamber 302 filters the water layer, thereby completing the oil-water separation.

[0035] The working principle of this practical application is as follows:

[0036] Refer to the instruction manual appendix Figure 1-4 By transporting the oil sludge into the oil sludge crushing box 1 and covering it with the box cover 102, the servo motor 201 is started, which drives the transmission rod 202 to rotate. The rotation of the transmission rod 202 drives the stirring rod 203 to rotate. The rotation of the stirring rod 203 crushes and stirs the oil sludge in the oil sludge crushing box 1, thus crushing large pieces of oil sludge. At the same time, the crushed oil sludge is initially filtered for impurities through the filter plate 4 and falls into the connecting pipe 301. The rotation of the transmission rod 202 drives the connecting rod 204 to rotate, which in turn drives the spiral blade 205 to rotate. The spiral blade 205 squeezes the oil sludge inside the oil sludge filter ring 206, squeezing the oil and water out of the oil sludge. After being filtered through the oil sludge filter ring 206, the oil and water flow into the oil-liquid separation box 101 inside the connecting pipe 301.

[0037] Refer to the instruction manual appendix Figure 1-4Oil and water flow through the connecting pipe 301 into the oil-water separator 101 and drip into the separation chamber 302. The connecting rod 204 drives the docking column 304 to penetrate into the docking bracket 303, thus limiting the connection between the docking column 304 and the docking bracket 303. The connecting rod 204 rotates, which in turn drives the docking bracket 303 to rotate, and in turn drives the separation chamber 302 to rotate. This allows the oil and water in the separation chamber 302 to be separated by centrifugal force. The diameter of the filter holes on the outer wall of the separation chamber 302 is smaller than that at the bottom of the separation chamber 302, which facilitates the filtration of the oil layer on the outer wall of the separation chamber 302 and the filtration of the water layer at the bottom of the separation chamber 302. This completes the oil-water separation and facilitates the separate discharge of the oil and water layers.

[0038] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An oil sludge treatment solid phase and liquid phase liquid separation device, characterized in that: The system includes an oil sludge crushing box (1), an oil-liquid separator (101) installed at the bottom of the oil sludge crushing box (1), a box cover (102) installed at the top of the oil sludge crushing box (1), a crushing mechanism (2) fixed at the top of the box cover (102) and penetrating the oil sludge crushing box (1) to the interior of the oil-liquid separator (101), a separation mechanism (3) installed between the oil-liquid separator (101) and the oil sludge crushing box (1) and penetrating the interior of the oil-liquid separator (101), and a filter plate (4) fixed inside the oil sludge crushing box (1) by bolts. The crushing mechanism (2) includes a connecting rod (204), which is located inside the sludge crushing box (1) and the oil-liquid separation box (101) and below the filter plate (4). The outer wall of the connecting rod (204) is fitted with a spiral blade (205), and the outer walls of the connecting rod (204) and the spiral blade (205) are fitted with a sludge filter ring (206) and fixed inside the sludge crushing box (1) and the oil-liquid separation box (101). The separation mechanism (3) includes a connecting pipe (301), which is located between the bottom end of the sludge crushing box (1) and the top end of the oil-liquid separation box (101), and is sleeved with the outer wall of the sludge filter ring (206). The oil-liquid separation box (101) is equipped with a separation chamber (302), which is rotatably connected to the outer wall of the sludge filter ring (206). The bottom ends of the separation chambers (302) are mechanically connected to a docking bracket (303), which is located inside the sludge filter ring (206). The bottom end of the connecting rod (204) is mechanically fixed with a docking column (304), and the docking bracket (303) is sleeved with the outer wall of the docking column (304).

2. An oil sludge treatment solid-liquid and liquid-liquid separation apparatus according to claim 1, characterized by: The crushing mechanism (2) also includes a servo motor (201), which is fixed to the top of the cover (102) by bolts. The output end of the servo motor (201) is mechanically connected to the transmission rod (202) through a coupling and is rotatably connected to the bottom end of the cover (102). The filter plate (4) is sealed to the outer wall of the transmission rod (202). A stirring rod (203) is mechanically fixed around the outer wall of the transmission rod (202). The top end of the connecting rod (204) is mechanically fixed to the bottom end of the transmission rod (202).

3. An oil sludge treatment solid-liquid and liquid-liquid separation apparatus according to claim 1, characterized by: An oil sludge pipe is installed on one side of the oil sludge crushing box (1), and an oil drain pipe and a drain pipe are installed on both sides of the outer wall of the oil-liquid separator (101), with a certain height difference between the oil drain pipe and the drain pipe. A sludge discharge pipe controlled by a control valve is installed at the bottom of the oil-liquid separator (101).

4. An oil sludge treatment solid-liquid and liquid-liquid separation apparatus according to claim 1, characterized by: The surface of the filter plate (4) is provided with a connection hole that matches the transmission rod (202). The outer diameter of the spiral blade (205) is smaller than the outer diameter of the transmission rod (202). A certain gap is left between the outer wall of the sludge filter ring (206) and the inner wall of the connecting pipe (301).

5. An oil sludge treatment solid-liquid and liquid-liquid separation apparatus according to claim 1, characterized by: The surface of the docking bracket (303) is provided with docking holes that match the docking column (304). The separation chamber (302) is rotatably connected to the outer wall of the sludge filter ring (206) through a bearing. Sealing rings are provided at the connection between the separation chamber (302) and the docking bracket (303) and at the connection between the box cover (102) and the top of the sludge crushing box (1).

6. An oil sludge treatment solid-liquid and liquid-liquid separation apparatus according to claim 1, characterized by: The diameter of the filter hole on the outer wall of the separation chamber (302) is smaller than the diameter of the filter hole at the bottom of the separation chamber (302). The bottom of the filter plate (4) and the interior of the sludge crushing box (1) are provided with inclined drainage grooves.

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