Oil sludge reduction separation equipment

Abstract

The invention discloses oil sludge reduction separation equipment, and belongs to the technical field of oil sludge treatment, the oil sludge reduction separation equipment comprises a separation tank, and a feeding pipe is fixedly mounted on the side wall of the separation tank. According to the scheme, the plugging plate is arranged, in the rotating process of the reciprocating screw rod, the reciprocating screw rod drives the plugging plate to move through the threaded sleeve, and after the plugging plate is not in contact with the bottom wall of the feeding box, a demulsifier in the feeding box can flow into the feeding cavity through the hollow rod and uniformly flow into the separation tank through the feeding holes in the feeding cavity; when the threaded sleeve drives the plugging plate to move downwards, the plugging plate gradually makes contact with the bottom wall of the feeding box, so that the feeding box can be plugged, the demulsifying agent in the feeding box cannot continuously flow into the hollow rod at the moment, in other words, under the action of the plugging plate, the demulsifying agent can intermittently and uniformly flow into the separation tank, and therefore the demulsifying agent can be separated from the separation tank. Therefore, the demulsifier and the oil sludge are quickly and uniformly mixed together, and the effect of improving the oil sludge separation efficiency is achieved.

Description

Technical Field

[0001] This invention relates to the field of oily sludge treatment technology, and more specifically, to an oily sludge reduction and separation device. Background Technology

[0002] Oilfield extraction and production processes generate a lot of oily sludge. The presence of oily sludge often poses a serious threat to the environment. At the same time, oily sludge also contains some usable oil, and direct disposal would result in the waste of oil. In order to solve this problem, it is generally necessary to separate the oily sludge, thereby reducing environmental pollution and improving the utilization rate of oil.

[0003] Existing oily sludge separation equipment typically involves placing the oily sludge into a separation tank, stirring it with a motor, and then separating the oily sludge through sedimentation and stratification. However, this method is usually suitable for oily sludge with high water and oil content, as it still has high fluidity and is therefore suitable for sedimentation and stratification. But for oily sludge with high viscosity, its fluidity is low, making sedimentation separation difficult to apply.

[0004] To address the aforementioned issues, some solutions have been proposed in the prior art. For example, Chinese invention application CN120757296A discloses a dewatering system for oily sludge. This device adds a demulsifier to disrupt the stable emulsion system formed by oil, water, and solid phases, causing oil droplets to coalesce and float, and solid particles to flocculate and settle. Then, an anchor-type agitator formed by L-shaped stirring blades performs low-speed, high-torque stirring during the initial high-viscosity stage of the oily sludge to ensure thorough mixing of the agent and the sludge. However, in actual use, the demulsifier diffuses slowly in viscous oily sludge, and after a one-time addition of the demulsifier, it is easy for the agent to be locally adsorbed and wasted, thus seriously affecting the separation efficiency. Summary of the Invention

[0005] In view of the problems existing in the prior art, the purpose of this invention is to provide a waste oil sludge reduction and separation device that can improve separation efficiency.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A waste oil sludge reduction and separation device includes a separation tank, a feeding pipe fixedly installed on the side wall of the separation tank, a cover plate detachably installed on the top wall of the separation tank, a motor fixedly installed on the cover plate, and a feeding assembly provided on the cover plate; The feeding assembly includes a feeding box fixedly installed on the cover plate, a reciprocating screw fixedly installed on the output end of the motor, a connecting rod fixedly installed on the reciprocating screw, a hollow rod fixedly installed on the connecting rod, and the hollow rod rotatably engages with the feeding box. A stirring rod is evenly fixedly installed on the hollow rod, and a feeding cavity communicating with the hollow rod is opened on the stirring rod. Feeding holes are evenly opened on the feeding cavity. A threaded sleeve is threadedly installed on the reciprocating screw, and a sealing plate is provided on the bottom wall of the threaded sleeve.

[0008] Furthermore, an air pump is fixedly installed on the cover plate, a first air pipe is fixedly installed on the output end of the air pump, an air groove is formed on the cover plate, a connecting groove is formed on the reciprocating screw, and connecting holes communicating with the air groove are evenly formed on the connecting groove. An extrusion plate that slides and seals with the feeding chamber is fixedly installed on the threaded sleeve, and an exhaust valve with its output end pointing downwards is fixedly installed on the extrusion plate. An air inlet valve with its output end pointing downwards is fixedly installed on the cover plate, and a telescopic tube extending to the top wall of the cover plate is fixedly installed on the extrusion plate. A plug plate is detachably installed on the telescopic tube.

[0009] Furthermore, the feeding box has an installation groove, a rotating ring is rotatably installed in the installation groove, a spring is installed between the rotating ring and the installation groove, a mesh plate is fixedly installed on the rotating ring, a linkage rod is vertically slidably installed on the rotating ring, and a linkage groove that cooperates with the linkage rod is provided on the rotating ring.

[0010] Furthermore, the threaded sleeve has a vertical groove, a vertical rod is slidably installed in the vertical groove, and a first spring is installed between the vertical rod and the vertical groove. The sealing plate is fixedly connected to the bottom end of the vertical rod, and an annular groove is provided on the sealing plate. An annular plate fixedly connected to the linkage rod is rotatably installed in the annular groove.

[0011] Furthermore, a scraper is fixedly installed on the stirring rod and fits against the inner wall of the separation tank, and the side wall of the scraper is inclined. A horizontal rod is fixedly installed on the hollow rod and fits against the bottom wall of the separation tank.

[0012] Furthermore, a filter screen that fits against the inner wall of the separation tank is fixedly installed on the side wall of the feeding box, an air inlet pipe extending to the separation tank is fixedly installed on the input end of the air pump, and a cleaning plate that cooperates with the filter screen is fixedly installed on the scraper.

[0013] Furthermore, the scraper has a cavity communicating with the feeding chamber, and the cavity has holes evenly distributed on it.

[0014] Furthermore, a solid phase tube is fixedly installed on the bottom wall of the separator, an electric telescopic rod is fixedly installed on the cover plate, and the output end of the electric telescopic rod extends to the bottom of the feeding box. An installation block is fixedly installed on the output end of the electric telescopic rod, and a liquid phase tube is fixedly installed on the installation block.

[0015] Furthermore, the bottom wall of the linkage rod is a smooth mirror surface, and the bottom wall of the linkage rod is tapered, and an elastic ring is installed between the top wall of the threaded sleeve and the cover plate.

[0016] Furthermore, a glass plate is fixedly installed on the side wall of the separation tank.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) This scheme sets up a sealing plate. During the rotation of the reciprocating screw, the reciprocating screw drives the sealing plate to move through the threaded sleeve. When the sealing plate is separated from the bottom wall of the feeding box, the demulsifier in the feeding box can flow into the feeding chamber through the hollow rod and flow evenly into the separation tank through the feeding hole on the feeding chamber. When the threaded sleeve drives the sealing plate to move downward, the sealing plate gradually contacts the bottom wall of the feeding box, thereby sealing the feeding box. At this time, the demulsifier in the feeding box cannot continue to flow into the hollow rod. That is, under the action of the sealing plate, the demulsifier can be intermittently and evenly flowed into the separation tank, thereby making the demulsifier and the sludge mix quickly and evenly, which improves the sludge separation efficiency. (2) This scheme is achieved by setting up an air pump, which drives the airflow through the first air pipe to the air tank, and then the airflow flows through the connecting hole into the connecting groove, and through the connecting groove into the hollow rod. Then the airflow flows through the hollow rod into the feeding chamber, and drives the demulsifier through the feeding chamber to blow the oily sludge in the separation tank. Since the airflow has an impact force, when the airflow impacts the oily sludge, it can improve the stirring effect of the oily sludge. In addition, when the airflow drives the demulsifier to impact the oily sludge, it can improve the mixing effect of the oily sludge and the demulsifier, and further improve the separation efficiency of the oily sludge. (3) This scheme sets up a screen plate, and during the reciprocating screw rotation, the linkage rod drives the rotating ring to rotate. During the rotation of the linkage rod, the ring plate rotates in the ring groove. When the sealing plate and the feeding box are out of contact, the linkage rod and the linkage groove are out of contact. At this time, the spring resets and drives the rotating ring to rotate quickly. During the rapid rotation of the ring, the ring drives the screen plate to rotate quickly. During the rapid rotation of the screen plate, the demulsifier flowing through the screen plate can be broken into small droplets. Then, the airflow drives the small droplets to impact the sludge in the separation tank, further improving the mixing effect of the demulsifier and the sludge, and further improving the separation efficiency of the sludge. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a cross-sectional view of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 4 For the present invention Figure 3 Enlarged view at point B in the middle; Figure 5 This is a cross-sectional view of the hollow rod, stirring rod, and scraper of the present invention; Figure 6 This is a diagram showing the combination of the extrusion plate and the reciprocating lead screw of the present invention. Figure 7 This is a diagram showing the combination of the hollow rod, stirring rod, scraper, and cleaning plate of the present invention.

[0019] Explanation of the labels in the diagram: 1. Separator; 2. Feed pipe; 3. Cover plate; 4. Motor; 5. Feeding assembly; 501. Feeding box; 502. Reciprocating screw; 503. Connecting rod; 504. Hollow rod; 505. Stirring rod; 506. Feeding chamber; 507. Feeding hole; 508. Threaded sleeve; 509. Sealing plate; 601. Air pump; 602. First air pipe; 603. Air tank; 604. Connecting groove; 605. Connecting hole; 606. Extrusion plate; 607. Exhaust valve; 608. Intake valve; 609. Telescopic pipe; 610. Plug plate; 701. Rotary ring; 702. Spring; 703. Mesh plate; 704. Linkage rod; 705. Linkage groove; 801. Vertical rod; 802. First spring; 803. Annular plate; 901. Scraper; 902. Horizontal bar; 903. Filter screen; 904. Intake pipe; 905. Cleaning plate; 906. Cavity; 907. Hole; 101. Solid phase tube; 102. Electric telescopic rod; 103. Mounting block; 104. Liquid phase tube; 11. Elastic ring; 12. Glass plate. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] Please see Figures 1 to 7A waste oil sludge reduction and separation device includes a separation tank 1, a feeding pipe 2 fixedly installed on the side wall of the separation tank 1, a cover plate 3 detachably installed on the top wall of the separation tank 1, a motor 4 fixedly installed on the cover plate 3, and a feeding assembly 5 provided on the cover plate 3; The feeding assembly 5 includes a feeding box 501 fixedly installed on the cover plate 3. A reciprocating screw 502 is fixedly installed on the output end of the motor 4. A connecting rod 503 is fixedly installed on the reciprocating screw 502. A hollow rod 504 is fixedly installed on the connecting rod 503, and the hollow rod 504 is rotatably engaged with the feeding box 501. A stirring rod 505 is evenly fixedly installed on the hollow rod 504. A feeding cavity 506 communicating with the hollow rod 504 is opened on the stirring rod 505. Feeding holes 507 are evenly opened on the feeding cavity 506. A threaded sleeve 508 is threadedly installed on the reciprocating screw 502. A sealing plate 509 is provided on the bottom wall of the threaded sleeve 508.

[0022] An air pump 601 is fixedly installed on the cover plate 3. A first air pipe 602 is fixedly installed on the output end of the air pump 601. An air groove 603 is opened on the cover plate 3. A connecting groove 604 is opened on the reciprocating screw 502. A connecting hole 605 communicating with the air groove 603 is evenly opened on the connecting groove 604. An extrusion plate 606 that slides and seals with the feeding chamber 506 is fixedly installed on the threaded sleeve 508. An exhaust valve 607 with the output end facing downward is fixedly installed on the extrusion plate 606. An air inlet valve 608 with the output end facing downward is fixedly installed on the cover plate 3. A telescopic pipe 609 extending to the top wall of the cover plate 3 is fixedly installed on the extrusion plate 606. A plug plate 610 is detachably installed on the telescopic pipe 609.

[0023] In use, the sludge is first fed into the separator 1 through the feed pipe 2. Then, the motor 4 is started. During the rotation of the motor 4, the hollow rod 504 is driven to rotate through the connecting rod 503 on the reciprocating screw 502. The hollow rod 504 then drives the stirring rod 505 to rotate. At the same time, during the rotation of the reciprocating screw 502, the threaded sleeve 508 moves up and down reciprocally. During the movement of the threaded sleeve 508, the sealing plate 509 moves. When the sealing plate 509 disengages from the bottom wall of the feed box 501, the demulsifier in the feed box 501 can flow into the hollow rod 504. Afterwards, the demulsifier flows through the hollow rod 504 into the feeding chamber 506, and then flows evenly into the separation tank 1 through the feeding hole 507 on the feeding chamber 506. When the threaded sleeve 508 drives the sealing plate 509 to move downwards, the sealing plate 509 gradually contacts the bottom wall of the feeding box 501, thereby sealing the feeding box 501. At this time, the demulsifier in the feeding box 501 can no longer flow into the hollow rod 504. That is, under the action of the sealing plate 509, the demulsifier can be intermittently and evenly flowed into the separation tank 1, thereby making the demulsifier and the sludge mix quickly and evenly, which improves the sludge separation efficiency.

[0024] During the operation of motor 4, which drives the threaded sleeve 508 to move, air pump 601 drives airflow through first air pipe 602 to air groove 603. Then, the airflow flows through connecting hole 605 to connecting groove 604, and through connecting groove 604 to hollow rod 504. Then, the airflow flows through hollow rod 504 to feeding chamber 506, and drives demulsifier through feeding chamber 506 to blow into the oily sludge in separation tank 1. Because the airflow has an impact force, the agitation effect of the oily sludge can be improved when the airflow impacts the oily sludge. In addition, when the airflow drives the demulsifier to impact the oily sludge, the mixing effect of oily sludge and demulsifier can be improved, further improving the separation efficiency of oily sludge.

[0025] When demulsifier needs to be added, the user can first open the stopper plate 610, and then add the demulsifier into the feeding box 501 through the telescopic tube 609. Since the pressure plate is fixedly connected to the threaded sleeve 508, and due to the restriction of the telescopic tube 609, the pressure plate and threaded sleeve 508 cannot rotate. This ensures that the threaded sleeve 508 can move up and down during the rotation of the reciprocating screw 502, and that the pressure plate moves up and down during the movement of the threaded sleeve 508. Furthermore, during the downward movement of the pressure plate, the demulsifier... The material box 501, located above the pressure plate, draws air from the outside through the air inlet valve 608. As the pressure plate moves upward, and the threaded sleeve 508 drives the pressure plate upward, the airflow in the space above the pressure plate of the material box 501 is compressed and flows through the exhaust valve 607 to the bottom of the pressure plate. Then, when the sealing plate 509 disengages from the bottom wall of the material box 501, the airflow can carry the demulsifier into the hollow rod 504, thereby ensuring that the demulsifier flows normally into the hollow rod 504.

[0026] like Figure 2 , Figure 3 , Figure 4 As shown, the feeding box 501 has an installation groove, in which a rotating ring 701 is rotatably installed. A spring 702 is installed between the rotating ring 701 and the installation groove. A mesh plate 703 is fixedly installed on the rotating ring 701, and a linkage rod 704 is vertically slidably installed on the rotating ring 701. A linkage groove 705 that cooperates with the linkage rod 704 is provided on the rotating ring 701.

[0027] The threaded sleeve 508 has a vertical groove, and a vertical rod 801 is slidably installed in the vertical groove. A first spring 802 is installed between the vertical rod 801 and the vertical groove. The sealing plate 509 is fixedly connected to the bottom end of the vertical rod 801. The sealing plate 509 has an annular groove, and an annular plate 803, which is fixedly connected to the linkage rod 704, is rotatably installed in the annular groove.

[0028] By adopting the above technical solution, during the downward movement of the threaded sleeve 508, the threaded sleeve 508 drives the linkage rod 704 to move downward through the sealing plate 509 and the rotating ring 701. During the downward movement of the linkage rod 704, the linkage rod 704 gradually inserts into the linkage groove 705. Then, during the rotation of the reciprocating screw 502, the linkage rod 704 drives the rotating ring 701 to rotate. During the rotation of the linkage rod 704, the annular plate 803 rotates within the annular groove. At this time, the mainspring 702 gradually accumulates power. Then, during the upward movement of the threaded sleeve 508, the threaded sleeve 508 drives the linkage rod 704 to move downward through the sealing plate 509 and the rotating ring 701. Ring 701 drives linkage rod 704 to move upward, and when the sealing plate 509 and the feeding box 501 are no longer in contact, linkage rod 704 and linkage groove 705 are no longer in contact. At this time, spring 702 resets and drives rotating ring 701 to rotate rapidly. During the rapid rotation of rotating ring 701, rotating ring 701 drives screen plate 703 to rotate rapidly. During the rapid rotation of screen plate 703, the demulsifier flowing through screen plate 703 can be broken into small droplets. Then, the airflow carries the small droplets to impact the sludge in the separation tank 1, further improving the mixing effect of demulsifier and sludge, and further improving the separation efficiency of sludge.

[0029] As the threaded sleeve 508 moves downward, it drives the sealing plate 509 downward via the first spring 802 and the vertical rod 801. Simultaneously, the reciprocating screw 502 drives the rotating ring 701 to rotate via the linkage rod 704. During the rotation of the rotating ring 701, the spring 702 gradually accumulates power. As the threaded sleeve 508 continues to move downward, when the sealing plate 509 contacts the bottom wall of the feeding box 501, the first spring 802 is gradually stretched and tends to return to its original position. Then, when the threaded sleeve 508 moves upward, the first spring 802 contracts and resets. After the first spring 802 resets, as the threaded sleeve 508 continues to move upward, it drives the sealing plate 509 downward via the first spring 802 and the vertical rod 801. The sealing plate 509 moves upward. When the sealing plate 509 disengages from the feeding box 501, the linkage rod 704 disengages from the linkage groove 705. That is, through the cooperation of the first spring 802 and the vertical rod 801, the power storage effect of the spring 702 can be improved, thereby improving the effect of the rotating ring 701 driving the mesh plate 703 to disperse the demulsifier. In addition, through the cooperation of the first spring 802 and the vertical rod 801, when the linkage rod 704 is not aligned with the linkage groove 705, as the threaded sleeve 508 moves downward, the threaded sleeve 508 will stretch the first spring 802. Then, after the linkage rod 704 contacts the linkage groove 705, the linkage rod 704 can be normally inserted into the linkage groove 705, thereby further improving the separation effect.

[0030] like Figure 2 , Figure 3 , Figure 7As shown, a scraper 901 is fixedly installed on the stirring rod 505 and is in contact with the inner wall of the separation tank 1, and the side wall of the scraper 901 is inclined. A horizontal rod 902 is fixedly installed on the hollow rod 504 and is in contact with the bottom wall of the separation tank 1.

[0031] A filter screen 903 that fits against the inner wall of the separation tank 1 is fixedly installed on the side wall of the feeding box 501. An air inlet pipe 904 extending to the separation tank 1 is fixedly installed on the input end of the air pump 601. A cleaning plate 905 that cooperates with the filter screen 903 is fixedly installed on the scraper 901.

[0032] The scraper 901 has a cavity 906 that communicates with the feeding chamber 506, and the cavity 906 has holes 907 evenly distributed on it.

[0033] By adopting the above technical solution, during the rotation of the stirring rod 505, the stirring rod 505 drives the scraper 901 to rotate, and the scraper 901 can clean the inner wall of the separation tank 1 during the rotation. During the rotation of the hollow rod 504, the horizontal rod 902 is driven to rotate, and the horizontal rod 902 can agitate the sludge on the bottom wall of the separation tank 1, thereby avoiding the sludge adhering to the inner wall of the separation tank 1 from affecting the separation efficiency and further improving the separation efficiency.

[0034] During the operation of the air pump 601, the air pump 601 draws airflow from the separator tank 1 through the air inlet pipe 904 and discharges it into the air tank 603 through the first air pipe 602. The airflow drawn into the separator tank 1 through the air inlet pipe 904 can avoid some of the loss of evaporated oil and gas. In addition, it can prevent the temperature change inside the separator tank 1 caused by external airflow from affecting the separation efficiency. The filter screen 903 can filter the airflow entering the air inlet pipe 904, thereby preventing the air inlet pipe 904 from being blocked by sludge. During the rotation of the scraper 901, the scraper 901 can drive the cleaning plate 905 to clean the dirt on the surface of the filter screen 903, thereby further improving the separation efficiency.

[0035] After the airflow carries the demulsifier droplets into the feeding chamber 506, part of the airflow will carry the demulsifier into the chamber 906 and impact the inner wall of the separation tank 1 through the holes 907 on the chamber 906, thereby further improving the mixing effect of the demulsifier and the sludge.

[0036] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, a solid phase tube 101 is fixedly installed on the bottom wall of the separation tank 1, an electric telescopic rod 102 is fixedly installed on the cover plate 3, and the output end of the electric telescopic rod 102 extends to the bottom of the feeding box 501. An installation block 103 is fixedly installed on the output end of the electric telescopic rod 102, and a liquid phase tube 104 is fixedly installed on the installation block 103.

[0037] The bottom wall of the linkage rod 704 is a smooth mirror surface and is tapered. An elastic ring 11 is installed between the top wall of the threaded sleeve 508 and the cover plate 3.

[0038] A glass plate 12 is fixedly installed on the side wall of the separation tank 1.

[0039] By adopting the above technical solution, after the sludge and demulsifier in the separator 1 are mixed, the mixture is allowed to stand for 30-120 minutes to separate. After the oil layer thickness stabilizes, the user can first control the electric telescopic rod 102 to move the mounting block 103 downward. After the mounting block 103 comes into contact with the oil phase, the uppermost oil phase of the separator 1 is first extracted through the liquid phase pipe 104. When the water content in the discharged liquid is significantly increased, the extraction of the oil phase is immediately stopped. Then the water phase is extracted through the liquid phase pipe 104. When obvious solid suspended matter appears at the drain outlet, the extraction of the water phase is immediately stopped. Then the solid phase in the separator 1 is discharged through the solid phase pipe 101.

[0040] During the process of inserting the linkage rod 704 into the linkage groove 705, by making the bottom end of the linkage groove 705 a smooth mirror-like cone, it is easier for the linkage rod 704 to be inserted into the linkage groove 705. Furthermore, by setting the elastic ring 11, it is possible to prevent the airflow above the feeding box 501 from flowing down to the extrusion plate 606 through the gap between the nut sleeve and the reciprocating screw 502, thereby improving the stability of the device operation.

[0041] During the separation process, the user can observe the separation status inside the separation tank 1 using the glass slide 12, which makes it easier for the user to judge the separation status.

[0042] Instructions for use: First, remove the stopper plate 610 of the telescopic tube 609 on the feeding box 501, add a certain amount of demulsifier into the feeding box 501 through the telescopic tube 609, and after the filling is completed, reinstall the stopper plate 610 to seal the telescopic tube 609.

[0043] Then, motor 4 drives reciprocating screw 502 to rotate, and drives hollow rod 504 and stirring rod 505 to rotate through connecting rod 503; at the same time, reciprocating screw 502 drives sealing plate 509 to move up and down reciprocally through threaded sleeve 508. When sealing plate 509 disengages from bottom wall of feeding box 501, demulsifier in feeding box 501 flows into hollow rod 504, and enters separation tank 1 through feeding chamber 506 and feeding hole 507; when sealing plate 509 contacts bottom wall of feeding box 501, demulsifier addition stops, thereby achieving intermittent and uniform addition of demulsifier.

[0044] In addition, during the downward movement of the threaded sleeve 508, the vertical rod 801 and the sealing plate 509 drive the linkage rod 704 to insert downward into the linkage groove 705 of the rotating ring 701. When the reciprocating screw 502 rotates, the linkage rod 704 drives the rotating ring 701 to rotate, causing the spring 702 to store power. When the sealing plate 509 disengages from the feeding box 501, the linkage rod 704 disengages from the linkage groove 705, and the spring 702 resets, causing the rotating ring 701 and the screen plate 703 to rotate rapidly, breaking the demulsifier flowing through the screen plate 703 into small droplets.

[0045] Furthermore, the air pump 601 outputs airflow through the first air pipe 602, air groove 603, connecting hole 605, and connecting groove 604 into the hollow rod 504, and drives the dispersed demulsifier droplets to impact the sludge in the separation tank 1; and the air pump 601 draws air from the separation tank 1 through the air inlet pipe 904, the filter screen 903 filters the airflow, and the scraper 901 drives the cleaning plate 905 to clean the dirt on the surface of the filter screen 903 when it rotates with the stirring rod 505.

[0046] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. A waste oil sludge reduction and separation device, comprising a separation tank (1), characterized in that: A feeding pipe (2) is fixedly installed on the side wall of the separation tank (1), and a cover plate (3) is detachably installed on the top wall of the separation tank (1). A motor (4) is fixedly installed on the cover plate (3), and a feeding assembly (5) is provided on the cover plate (3). The feeding assembly (5) includes a feeding box (501) fixedly installed on the cover plate (3), a reciprocating screw (502) fixedly installed on the output end of the motor (4), a connecting rod (503) fixedly installed on the reciprocating screw (502), a hollow rod (504) fixedly installed on the connecting rod (503), and the hollow rod (504) rotatably engages with the feeding box (501). A stirring rod (505) is evenly fixedly installed on the hollow rod (504), and a feeding chamber (506) communicating with the hollow rod (504) is opened on the stirring rod (505). Feeding holes (507) are evenly opened on the feeding chamber (506). A threaded sleeve (508) is threadedly installed on the reciprocating screw (502), and a sealing plate (509) is provided on the bottom wall of the threaded sleeve (508).

2. The sludge reduction and separation equipment according to claim 1, characterized in that: An air pump (601) is fixedly installed on the cover plate (3). A first air pipe (602) is fixedly installed on the output end of the air pump (601). An air groove (603) is opened on the cover plate (3). A connecting groove (604) is opened on the reciprocating screw (502). A connecting hole (605) communicating with the air groove (603) is evenly opened on the connecting groove (604). An extrusion plate (606) that slides and seals with the feeding chamber (506) is fixedly installed on the threaded sleeve (508). An exhaust valve (607) with the output end facing downward is fixedly installed on the extrusion plate (606). An air inlet valve (608) with the output end facing downward is fixedly installed on the cover plate (3). A telescopic pipe (609) extending to the top wall of the cover plate (3) is fixedly installed on the extrusion plate (606). A plug plate (610) is detachably installed on the telescopic pipe (609).

3. The sludge reduction and separation equipment according to claim 2, characterized in that: The feeding box (501) is provided with an installation groove, and a rotating ring (701) is rotatably installed in the installation groove. A spring (702) is installed between the rotating ring (701) and the installation groove. A mesh plate (703) is fixedly installed on the rotating ring (701), and a linkage rod (704) is vertically slidably installed on the rotating ring (701). A linkage groove (705) that cooperates with the linkage rod (704) is provided on the rotating ring (701).

4. The sludge reduction and separation equipment according to claim 3, characterized in that: The threaded sleeve (508) has a vertical groove, and a vertical rod (801) is slidably installed in the vertical groove. A first spring (802) is installed between the vertical rod (801) and the vertical groove. The sealing plate (509) is fixedly connected to the bottom end of the vertical rod (801). The sealing plate (509) has an annular groove, and an annular plate (803) fixedly connected to the linkage rod (704) is rotatably installed in the annular groove.

5. The sludge reduction and separation equipment according to claim 4, characterized in that: A scraper (901) is fixedly installed on the stirring rod (505) and fits against the inner wall of the separation tank (1). The side wall of the scraper (901) is inclined. A horizontal rod (902) is fixedly installed on the hollow rod (504) and fits against the bottom wall of the separation tank (1).

6. The sludge reduction and separation equipment according to claim 5, characterized in that: A filter screen (903) that fits against the inner wall of the separator (1) is fixedly installed on the side wall of the feeding box (501), an air inlet pipe (904) extending to the separator (1) is fixedly installed on the input end of the air pump (601), and a cleaning plate (905) that cooperates with the filter screen (903) is fixedly installed on the scraper (901).

7. The sludge reduction and separation equipment according to claim 6, characterized in that: The scraper (901) has a cavity (906) that communicates with the feeding chamber (506), and the cavity (906) has holes (907) evenly distributed on it.

8. The sludge reduction and separation equipment according to claim 1, characterized in that: A solid phase tube (101) is fixedly installed on the bottom wall of the separator (1), an electric telescopic rod (102) is fixedly installed on the cover plate (3), and the output end of the electric telescopic rod (102) extends to the bottom of the feeding box (501). An installation block (103) is fixedly installed on the output end of the electric telescopic rod (102), and a liquid phase tube (104) is fixedly installed on the installation block (103).

9. The sludge reduction and separation equipment according to claim 3, characterized in that: The bottom wall of the linkage rod (704) is a smooth mirror surface, and the bottom wall of the linkage rod (704) is conical. An elastic ring (11) is installed between the top wall of the threaded sleeve (508) and the cover plate (3).

10. The sludge reduction and separation equipment according to claim 1, characterized in that: A glass plate (12) is fixedly installed on the side wall of the separation tank (1).

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