Integrated device for grading and sorting oil sludge

Abstract

The application discloses an oil sludge grading and classifying integrated treatment device and relates to the technical field of soil purification. The device comprises a box body provided with hot water, a pushing mechanism arranged on the box body, an adding mechanism arranged on the box body and used for adding hot water into the box body, a driving assembly arranged on the box body and used for driving the rotating cage to rotate, a first collecting assembly and a second collecting assembly arranged on the box body and respectively used for collecting the silt in a first collecting area and the sand and stone in a second collecting area, and a floating oil collecting assembly arranged on the box body and used for collecting the floating oil on water. The device realizes the cleaning of the oil in the soil, the cleaning of the light garbage, the screening of the soil, the cleaning in sections, the removal of the floating oil in water and the improvement of the cleaning effect of the water on the oil in the soil, and further improves the purification effect of the soil.

Description

Technical Field

[0001] This invention relates to the field of soil purification technology, specifically to an integrated treatment device for oily sludge classification and grading. Background Technology

[0002] With continuous economic development, energy consumption is constantly increasing, and environmental pollution is becoming increasingly serious. In particular, with the continuous increase in the scale of industrial and agricultural production, the demand for crude oil is increasing day by day. During the extraction, purification, and processing of crude oil, oil-containing waste such as oily soil is generated, and the amount of this waste is increasing year by year in a certain period.

[0003] Currently, technologies for purifying oil-contaminated sludge are being developed and applied. Among the technologies used to remove oil-containing contaminants are chemical thermal washing, incineration, pyrolysis, and microbial remediation. It is an industry consensus that oilfields must classify and sort sludge when chemically washing spilled sludge containing impurities or with significant differences in particle size distribution, as well as sludge from tank cleaning and mixed storage. Furthermore, when applying other processes such as pyrolysis, incineration, and microbial remediation to treat oilfield sludge, sorting and classification are also necessary to improve efficiency and ensure treatment effectiveness.

[0004] Traditional sorting devices can only perform general sorting, resulting in problems such as low sorting accuracy, poor sorting effect, oil-water mixing leading to poor oil recovery, poor cleaning effect, high equipment failure rate and difficult maintenance, and low oil enrichment and recovery rate. Traditional sorting devices also leave excessive impurities adhering to the oil after sorting. Furthermore, conventional or traditional sorting devices often leave soft materials carrying large amounts of mud and sand, leading to excessively high solid residue yields during subsequent incineration or pyrolysis, and high landfill costs for disposing of these pyrolysis and incineration residues. Another significant consensus is that traditional sorting devices prioritize sorting and have weak cleaning capabilities, requiring secondary processing of the sorted materials. Summary of the Invention

[0005] The purpose of this invention is to provide an integrated treatment device for oil sludge grading and classification, which improves the cleaning effect of water on oil in soil, further enhances the soil purification effect, and also improves the soil purification efficiency, achieving energy saving and environmental protection.

[0006] To achieve the above objectives, the technical solution of this application is: an integrated treatment device for grading and classifying oil sludge, comprising a tank containing hot water, a pushing mechanism disposed on the tank, and an adding mechanism disposed on the tank for adding hot water into the tank, wherein the pushing mechanism includes:

[0007] A rotating cage is rotatably mounted on a horizontally positioned box. The rotating cage is immersed in hot water and used to move and agitate the soil along its axis. The box is divided into a first collection area and a second collection area along the axis of the rotating cage. Multiple first filter holes for mud and sand are evenly distributed on the rotating cage in the first collection area, and multiple second filter holes for gravel are evenly distributed on the rotating cage in the second collection area. The diameter of the second filter holes is larger than that of the first filter holes. The rotating cage rotates so that the soil passes through the first and second filter holes in sequence, while lightweight waste is moved outside the rotating cage for collection.

[0008] A drive assembly, which is mounted on the housing and is used to drive the rotating cage to rotate;

[0009] A first collection component and a second collection component are disposed on the housing and are respectively used to collect mud and sand in the first collection area and gravel in the second collection area;

[0010] An oil spill collection assembly is installed on a tank and is used to collect oil spills on the water.

[0011] By adopting the above technical solution, soil is continuously added to the rotating cage, and the drive component starts to rotate the cage. The rotation of the cage moves and agitates the soil, and the soil is immersed in hot water, causing the oil in the soil to form floating oil that rises to the water surface. The silt in the soil settles into the first collection area through the first filter holes, where the first collection component collects the silt. At the same time, larger diameter gravel continues to move and be washed during the rotation of the cage, and then moves to the second collection area. After being washed, the gravel settles downward through the second filter holes, where the second collection component collects it. Meanwhile, lightweight waste continues to move to the outside of the rotating cage for collection as the cage rotates. The floating oil washed away by the hot water floats on the water surface and moves closer to the floating oil collection component as the cage rotates. The floating oil collection component collects the floating oil, thereby removing the floating oil from the water, improving the soil purification effect, and also enabling the classification and treatment of oily sludge, thus improving the soil treatment efficiency.

[0012] The soil is stirred and turned by the continuous rotation of the rotating cage, so that the oil in the soil is loosened and forms a floating oil that floats to the water surface, the first collecting assembly is used for collecting the silt, the second collecting assembly is used for collecting the sand, and the light garbage is also transferred to the outside of the rotating cage for collection, so that the oil in the soil is continuously cleaned, the light garbage is cleaned, the soil is screened, and the cleaning is performed in sections, and the subsequent floating oil in the water is removed, thereby improving the cleaning effect of the water on the oil in the soil and further improving the purification effect of the soil.

[0013] Optionally, the first collecting assembly comprises:

[0014] A sediment tank is arranged on the bottom of the box body and is used for collecting the silt deposited in the first collecting area.

[0015] A spiral conveyor is rotatably arranged on the bottom of the sediment tank and is used for conveying the silt.

[0016] A collecting motor is arranged on the sediment tank and is used for driving the spiral conveyor to rotate.

[0017] A silt output pipe is arranged on the bottom of the sediment tank and is used for receiving the silt output by the spiral conveyor.

[0018] A storage tank is arranged on the silt output pipe and is used for collecting the output silt.

[0019] By adopting the above technical solution, the control assembly controls the silt output pipe to open after the storage tank is closed, the silt falls into the sediment tank through the first filter hole, the collecting motor is started to drive the spiral conveyor to rotate, the spiral conveyor stirs and moves the silt, so that the residual oil in the silt continues to float under the stirring action, and the silt enters the silt output pipe under the action of the spiral conveyor, and finally the silt enters the storage tank for storage, and at the same time, as the silt enters, the sewage in the storage tank flows back from the storage tank, and the spiral conveyor generates a pushing force when pushing the silt to move, thereby extruding the silt in the storage tank, so that more hot water in the storage tank flows back to the sediment tank and the box body, thereby reducing the water content of the silt in the storage tank.

[0020] After a period of time, the storage tank is filled with the sediment, the control assembly controls the sediment output pipe to be closed and the storage tank to be opened, the sediment in the storage tank is output for collection, and the sediment can continue to accumulate in the sediment output pipe for collection. After the sediment output in the storage tank is completed, the control assembly controls the storage tank to be closed and the sediment output pipe to be opened, so that the sediment can continue to be stored in the storage tank, thereby improving the convenience of sediment collection, reducing the waste of hot water, and achieving energy saving and environmental protection.

[0021] Optionally, the sediment output pipe is provided with a drainage assembly, and the drainage assembly comprises:

[0022] a drainage pipe arranged on the sediment output pipe and above the control assembly and used for outputting water in the sediment output pipe;

[0023] a filter plate detachably arranged at the connection between the drainage pipe and the sediment output pipe and used for filtering the sediment;

[0024] a water collecting tank arranged on the drainage pipe and used for collecting water;

[0025] a water collecting pump arranged on the water collecting tank and used for outputting water in the water collecting tank and communicating with the adding mechanism.

[0026] By adopting the above technical scheme, the sediment is extruded by the thrust force to pass through the sediment output pipe and enter the storage tank for storage, the water in the storage tank is backflowed to the sediment tank and the tank body through the sediment output pipe, part of the water flows into the drainage pipe through the filter plate when passing through the sediment output pipe, and finally the water flows to the water collecting tank for collection. When the water collecting tank is full, the water collecting pump is started to flow the water in the water collecting tank to the adding mechanism for recycling, thereby further reducing the waste of hot water. Meanwhile, an additional channel is added for water backflow, thereby improving the water backflow efficiency, making more water in the sediment backflow, improving the water recycling effect, and reducing the probability of the sediment in the sediment output pipe and the storage tank being pushed upward and re-entering the sediment tank when the water backflows, thereby further improving the convenience of sediment collection, reducing the waste of hot water, and achieving environmental protection.

[0027] Optionally, the control assembly comprises:

[0028] a first plate body and a second plate body movably arranged on the sediment output pipe and the storage tank, respectively, so that the sediment output pipe is closed and the storage tank is opened to realize sediment output, or the storage tank is closed and the sediment output pipe is opened to realize sediment storage in the storage tank;

[0029] a first driving member and a second driving member arranged on the sediment output pipe and the storage tank, respectively, and used for driving the first plate body and the second plate body to move, respectively.

[0030] By adopting the technical scheme, when the storage box needs to store the silt, the second driving member drives the second plate body to move to close the storage box, and then the first driving member drives the first plate body to open the silt output pipe, so that the silt can be added to the storage box through the silt output pipe; when the storage box is full of silt, the first driving member drives the first plate body to move to close the silt output pipe, the silt continues to accumulate on the first plate body for storage, and the water in the silt output pipe continues to flow back upward, and then the second driving member drives the second plate body to open the storage box, so that the silt in the storage box is output; and after the silt output is completed, the silt accumulation on the first plate body falls downward into the storage box for storage.

[0031] When the storage box stores the silt, the silt enters to extrude the water backflow, so that the water in the storage box is discharged, so that the water content in the silt in the storage box is less; when the silt in the storage box is discharged, the silt can continue to accumulate on the first plate body while discharging water, and when the silt in the storage box is discharged, the silt accumulated on the first plate body can directly fall and be stored in the storage box, so that the discharge of the silt in the storage box is not interrupted, so as to improve the discharge efficiency of the silt, thereby improving the purification efficiency of the soil.

[0032] Optionally, the rotating cage is divided into a first cylindrical segment, a connecting segment and a second cylindrical segment along the rotating cage axis, the diameter of the connecting segment gradually decreases and the diameters of the two ends are the same as the diameters of the first cylindrical segment and the second cylindrical segment, and the diameter of the first cylindrical segment is greater than the diameter of the second cylindrical segment; the water level in the tank is below the second cylindrical segment, the connecting segment is above the second collecting assembly and is provided with a plurality of floating oil holes for floating oil to pass through, and the driving assembly is connected with the second cylindrical segment.

[0033] By adopting the technical scheme, after the sandstone enters the second collection area, it is settled through the second filter hole, but the sandstone is left with silt, so that the sandstone does not fall off and moves upward in the connecting segment after entering the connecting segment from the first cylindrical segment, so that the sandstone rolls downward and then moves back to the second filter hole, and the sandstone moves through the washing of water, so that the silt on the sandstone falls off, so that the returned sandstone can be settled through the second filter hole, but the light waste cannot pass through the second filter hole and moves upward, so that the water and floating oil adhered to the light waste also move downward and flow back, and the rotating cage drives the light waste to move out of the rotating cage for collection, so as to reduce the waste of water and the difficulty of subsequent light waste treatment.

[0034] The rotation of the rotating cage makes the oil in the soil form a floating oil floating on the water surface, and the rotation of the rotating cage drives the water, the floating oil and the soil to move in the same direction, and the floating oil is located above the settled silt and gravel, reducing the probability of the floating oil continuing to move to the silt and gravel, and finally the floating oil is moved to the floating oil collecting assembly through the floating oil hole for collection, thereby further improving the cleaning effect of the floating oil in the soil and improving the purification effect and efficiency of the soil; meanwhile, the second cylindrical section is located above the water and the floating oil, and the driving assembly is connected with the second cylindrical section, thereby reducing the probability of the driving assembly being damaged by contacting with the water and the floating oil, improving the service life and stability of the driving assembly during operation, and improving the purification efficiency of the soil.

[0035] Optionally, the second collecting assembly comprises:

[0036] A collecting box is arranged at the bottom of the box body and is used for collecting the gravel in the second collecting area.

[0037] A gravel output pipe is arranged at the bottom of the collecting box and is used for outputting the gravel, and a storage box and a control assembly are also arranged on the gravel output pipe; a gravel blocking plate that allows the sewage to pass through but blocks the gravel is arranged on the side wall of the collecting box and is located close to the floating oil collecting assembly, and the floating oil in the box body is located above the gravel blocking plate.

[0038] By adopting the above technical scheme, the gravel is settled downward into the collecting box, and the gravel output and the silt output are operated in the same way, so as to reduce the waste of water, improve the convenience of gravel output, and improve the purification efficiency of the soil; meanwhile, when the gravel is accumulated in the collecting box, part of the water flows back upward into the box body located above the collecting box, and part of the water enters the box body through the gravel blocking plate, so as to further improve the water recovery effect, thereby reducing the waste of water, improving the convenience of gravel output, and improving the purification efficiency of the soil.

[0039] The storage box and the sedimentation tank are separated to collect the settled silt and gravel, thereby reducing the probability of the silt entering the collecting box under the driving of the rotating cage, and further improving the purification effect and efficiency of the soil.

[0040] Optionally, the floating oil collecting assembly is located below the second cylindrical section and is in communication with the floating oil hole, and the floating oil collecting assembly comprises:

[0041] The first control plate, the second control plate, the third control plate and the fourth control plate are arranged on the box body in the direction of the rotating cage axis, the bottom ends of the first control plate, the third control plate and the fourth control plate are connected with the inner bottom wall of the box body, the first control plate, the second control plate and the box body form an oil collecting groove for the overflow of water and floating oil in the box body, the third control plate, the fourth control plate and the box body form a sewage groove, the bottom end of the second control plate and the inner bottom wall of the box body form an overflow channel, the second control plate, the third control plate and the box body form an overflow cavity which is communicated with the oil collecting groove through the overflow channel and is used for the overflow of water into the sewage groove, the fourth control plate and the inner side wall of the box body form a storage area for collecting light garbage, the top end of the first control plate is located above the third control plate, and the top ends of the second control plate and the fourth control plate are located above the first control plate.

[0042] The oil collecting pipeline is arranged on the box body and located above the third control plate and communicated with the oil collecting groove.

[0043] The circulating water pipeline is arranged on the box body and located below the third control plate and communicated with the sewage groove, and the circulating water pipeline is communicated with the adding mechanism.

[0044] According to the technical scheme, the floating oil floats on the water surface, and thus the floating oil first overflows into the oil collecting groove, and part of the water also enters the oil collecting groove, and the floating oil in the oil collecting groove continues to float on the water surface, so that the water in the oil collecting groove enters the overflow cavity through the overflow channel, and the density of the floating oil is smaller than that of the water, so that according to the pressure formula, when the pressure of the oil collecting groove and the overflow cavity is balanced, the liquid level of the floating oil in the oil collecting groove must be higher than that of the water in the overflow cavity, so that the floating oil in the oil collecting groove is first output through the oil collecting pipeline for collection, and as the water and the floating oil increase, the liquid levels of the floating oil in the oil collecting groove and the water in the overflow cavity are also increased, so that the floating oil is removed through the oil collecting pipeline, and the water in the overflow cavity also overflows into the sewage groove for collection, so that the floating oil and the water can be separated, the floating oil in the water is removed, the water in the sewage groove is recycled, and the purification effect and efficiency of the soil are improved.

[0045] The third control plate has a certain height for ensuring the size of the sewage groove, and then the floating oil floats on the water surface and the pressure difference, so that the sewage and the floating oil can be separated when the third control plate has a high height, and thus the removal effect of the floating oil is improved, and the purification effect and efficiency of the soil are improved; the light garbage falls into the storage area for storage, and when the water in the sewage groove is too much, the water can overflow into the storage area for buffering, and the probability of the overflow of the sewage out of the box body is reduced.

[0046] Optionally, the adding mechanism comprises:

[0047] a heating pipe arranged in the sewage tank and used for heating the sewage;

[0048] an adding pump arranged on the box and communicated with the circulating water pipe;

[0049] a water adding pipe arranged on the adding pump and communicated with the end of the box away from the circulating water pipe;

[0050] a water level detector arranged in the box and used for detecting the water level in the box and electrically connected with the adding pump.

[0051] By adopting the above technical scheme, the water level detector detects the water level in the box, the heating pipe heats the water in the sewage tank, when the water level is lower than a specified value, the adding pump is started, the hot water in the sewage tank enters the box through the water adding pipe, so that the water level in the box is kept at a certain height, thereby ensuring the cleaning effect of the hot water on the soil and improving the purification effect and efficiency of the soil, and the hot water inputted impacts the soil to move along the pushing direction of the rotating cage, thereby further improving the purification effect and efficiency of the soil.

[0052] Optionally, an agitating assembly is arranged on the sediment tank between the rotating cage and the screw conveyor, and the agitating assembly comprises:

[0053] an agitating rod rotatably arranged on the sediment tank between the rotating cage and the screw conveyor and used for agitating the silt, and an axis of the agitating rod is parallel to an axis of the rotating cage;

[0054] a stirring blade arranged on the agitating rod;

[0055] a first gear and a second gear arranged on the screw conveyor and the agitating rod respectively;

[0056] a connecting gear rotatably arranged on the sediment tank and engaged with the first gear and the second gear, and the connecting gear has a smaller number of teeth than the first gear and a larger number of teeth than the second gear.

[0057] By adopting the above technical scheme, the screw conveyor rotates to drive the first gear to rotate, the first gear rotates to drive the connecting gear to rotate, the connecting gear rotates to drive the second gear and the stirring rod to rotate, the stirring rod rotates to drive the stirring blade to rotate and agitate the silt, so that the silt is lifted to further clean the grease in the silt, thereby improving the purification effect and efficiency of the soil.

[0058] The number of teeth of the simultaneously connecting gear is less than the number of teeth of the first gear and greater than the number of teeth of the second gear, so according to the transmission ratio, the rotating speed of the stirring rod is greater than the rotating speed of the screw conveyor, and the rotating directions of the stirring rod and the screw conveyor are the same, so that the stirring effect on the silt is improved, and the purification effect and efficiency on the soil are further improved.

[0059] Optionally, the stirring blade is detachably installed with an installation strip, and the installation strip is provided with a brush for cleaning the first filter hole.

[0060] By using the above technical scheme, the brush is used to clean the first filter hole, so that the rate of silt passing through the first filter hole is ensured, and the purification effect and efficiency on the soil are improved.

[0061] The present application can achieve the following technical effects by using the above technical scheme: the soil is continuously stirred and turned by the rotating cage, so that the oil in the soil forms floating oil and floats to the water surface, the first collecting assembly is used to collect the silt, the second collecting assembly is used to collect the sand and gravel, and the light garbage is also transferred to the outside of the rotating cage for collection, so that the oil in the soil is continuously cleaned, the light garbage is cleaned, the soil is screened, and the soil is cleaned in sections, and the floating oil in the water is cleaned subsequently, so that the cleaning effect of the water on the oil in the soil is improved, and the purification effect on the soil is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0062] Figure 1 is a perspective structural schematic diagram of the present application;

[0063] Figure 2 is Figure 1 is a cross-sectional schematic diagram of A-A in the present application;

[0064] Figure 3 is a partial structural schematic diagram of the present application, mainly showing the rotating cage, the driving assembly and the stirring assembly;

[0065] Figure 4 is a structural schematic diagram of the drainage assembly in the present application;

[0066] Figure 5 is a partial structural schematic diagram of the drainage assembly in the present application, in which the filter plate and the arc-shaped plate are exploded;

[0067] Figure 6 is Figure 2 is an enlarged schematic diagram of part B in the present application.

[0068] Label: 1, box; 11, mounting part; 12, containing part; 13, input pipe; 14, feeding hopper; 15, first collection area; 16, second collection area; 2, pushing mechanism; 21, rotating cage; 22, cage body; 23, helical blade; 24, first cylindrical section; 25, connecting section; 251, floating oil hole; 26, second cylindrical section; 27, first filter hole; 28, second filter hole; 3, driving assembly; 31, main gear; 32, driving motor; 33, auxiliary gear; 4, first collection assembly; 41, sediment tank; 42, screw conveyor; 43, collection motor; 44, silt output pipe; 45, storage tank; 46, guide groove; 5, second collection assembly; 51, collection tank; 52, gravel output pipe; 53, sand separation plate; 54, water passage; 6, stirring assembly; 61, stirring rod; 62, stirring blade; 63, first gear; 64, second gear; 65, connecting gear; 7, control assembly; 71, first plate body; 72, second plate body; 73, first driving member; 74, second driving member; 8, drainage assembly; 81, drainage pipe; 811, mounting hole; 812, flow pipe; 82, filter plate; 821, arc-shaped plate; 83, water collection tank; 831, water passage pipe; 84, water collection pump; 85, water outlet pipe; 9, floating oil collection assembly; 91, first control plate; 911, oil collection groove; 92, second control plate; 921, overflow channel; 93, third control plate; 931, overflow cavity; 932, sewage groove; 94, fourth control plate; 941, storage area; 95, oil collection pipeline; 96, circulating water pipe; 10, adding mechanism; 101, heating pipe; 102, adding pump; 103, water adding pipe; 104, water level detector. DETAILED DESCRIPTION

[0069] The principles of the present disclosure will now be described with reference to a number of example embodiments illustrated in the drawings. While the preferred embodiments of the present disclosure are shown in the drawings, it is understood that the embodiments are merely for the purpose of better understanding the present disclosure so as to implement the same, and in no way limit the scope of the present disclosure.

[0070] This application discloses an integrated treatment device for classifying and sorting oil sludge. It utilizes differences in particle size, specific gravity, and suspension capacity to perform multi-stage sorting of materials with different particle sizes and properties, resulting in finer sorting and a more thorough separation than traditional rotary drum sorting. The main rotating drum structure is horizontally arranged with adjustable liquid level, providing a larger immersion volume and longer cleaning residence time for more thorough cleaning. Furthermore, the internal structure of the rotating drum not only propels the material in a spiral motion but also disperses and agitates it, solving the problem of poor sorting results caused by the entanglement of soft and hard materials in traditional rotary drums. This device not only has a sorting function but also a triple cleaning function: first, sorting and cleaning within the rotating drum; second, soaking and cleaning in the mud and sand box; and third, stirring and cleaning during the spiral mud and sand discharge process. Larger particles can be cleaned to standard in a single pass. The drive component is rationally designed and located above the liquid surface, facilitating manufacturing and maintenance and improving clean production capabilities. It incorporates water circulation, automatic liquid level adjustment, and oil enrichment functions, significantly reducing the water content of recovered waste oil and improving the quality of recovered oil, meeting the requirements of oilfield oil-water treatment systems. Multi-stage sorting and a conical constriction design solve the problems of solid phase classification and automatic impurity sorting, improving the sorting effect. The following is in conjunction with the appendix... Figures 1-6 This application will be described in further detail.

[0071] Reference Figure 1 The integrated treatment device for classifying and sorting oil sludge includes a tank 1 containing hot water, a pushing mechanism 2 installed on the tank 1, and an adding mechanism 10 installed on the tank 1 for adding hot water into the tank 1.

[0072] Reference Figure 1 and Figure 2 The box body 1 is a horizontal rectangular structure, and the box body 1 includes a mounting part 11 and a receiving part 12 connected in sequence. A horizontal input pipe 13 is fixedly installed on the end of the mounting part 11 away from the receiving part 12. The axis of the input pipe 13 is parallel to the length direction of the box body 1 and extends into the mounting part 11. A vertical feed hopper 14 is fixedly installed on the end of the input pipe 13 outside the mounting part 11 through a flange.

[0073] The driving mechanism 2 includes a rotating cage 21 and a driving assembly 3. The rotating cage 21 is horizontal and its axis is parallel to the length direction of the housing 1. The rotating cage 21 is rotatably mounted on the mounting part 11. The rotating cage 21 includes a hollow cage body 22 and a spiral blade 23 coaxially arranged inside the cage body 22 and in a spiral shape. The cage body 22 and the spiral blade 23 have the same shape and their two ends are flush. The rotating cage 21 is divided into a first cylindrical section 24, a connecting section 25 and a second cylindrical section 26 along the axis of the rotating cage 21. The first cylindrical section 24 and the second cylindrical section 26 are both cylindrical, and the diameter of the first cylindrical section 24 is larger than the diameter of the second cylindrical section 26. The connecting section 25 has a frustum-shaped tube structure and the diameters at both ends are the same as the diameters of the first cylindrical section 24 and the second cylindrical section 26, respectively.

[0074] The first cylindrical segment 24 is rotatably installed on the end of the input pipe 13 inside the box 1, and the second cylindrical segment 26 is rotatably connected to the installation part 11 and extends out of the end of the input pipe 13 away from the installation part 11; the input pipe 13 is in communication with the inside of the cage 22, and the soil is added into the input pipe 13 and then into the cage 22, and the cage 22 and the helical blade 23 rotate to push the soil along the axis of the rotating cage 21, and the helical blade 23 stirs the soil, and the soil is soaked in the hot water, so that the grease in the soil is cleaned, and the grease in the soil forms floating oil on the water surface.

[0075] With reference to Figure 2 and Figure 3 , the installation part 11 is divided into a first collection area 15 and a second collection area 16 along the axis of the cage 22, and the first collection area 15 is located on the side of the second collection area 16 close to the input pipe 13, and the first filter hole 27 is located in the first collection area 15, and the second filter hole 28 is located in the second collection area 16, and the diameter of the second filter hole 28 gradually increases along the axis of the cage 22, and the diameter of the second filter hole 28 closest to the first filter hole 27 is the smallest and larger than the diameter of the first filter hole 27, and the maximum diameter of the second filter hole 28 is larger than the diameter of the sand and gravel; the first filter hole 27 is used for the mud and sand formed after the soil is cleaned, and the second filter hole 28 is used for the sand and gravel, so that the mud and sand sink downward into the first collection area 15 for collection, and the sand and gravel sink downward into the second collection area 16 for collection, and the light garbage such as plastic bags cannot pass through the second filter hole 28, so the light garbage moves under the rotation of the rotating cage 21 and is collected from the end of the cage 22 away from the input pipe 13.

[0076] The driving assembly 3 is arranged on the installation part 11 and is used for driving the rotating cage 21 to rotate, and the driving assembly 3 comprises a main gear 31, a driving motor 32 and a secondary gear 33; the main gear 31 is key-connected to the second cylindrical segment 26 and located on the outside of the installation part 11; the driving motor 32 is fixedly installed on the outer wall of the installation part 11, and the secondary gear 33 is key-connected to the output shaft of the driving motor 32 and engaged with the main gear 31; the driving motor 32 drives the secondary gear 33 to rotate, and the secondary gear 33 drives the main gear 31 and the rotating cage 21 to rotate.

[0077] With reference to Figure 1 and Figure 2, the pushing mechanism 2 further comprises a first collecting assembly 4 and a second collecting assembly 5, the first collecting assembly 4 and the second collecting assembly 5 are arranged on the box body 1 and are respectively used for collecting the silt in the first collecting area 15 and the sand and stone in the second collecting area 16, the first collecting assembly 4 comprises a sediment tank 41, a spiral conveyor 42, a collecting motor 43, a silt output pipe 44 and a storage tank 45; the sediment tank 41 is integrally arranged on the bottom of the mounting portion 11 and is in communication with the mounting portion 11, meanwhile, the bottom of the sediment tank 41 is inwardly contracted and an arc-shaped guide groove 46 is formed in the inside of the sediment tank 41, the axis of the guide groove 46 is parallel to the axis of the rotating cage 21; the silt is moved to the guide groove 46 after being downwardly settled, and the settled silt can also be gathered upwardly into the sediment tank 41.

[0078] With reference to Figure 2 and Figure 3 , the spiral conveyor 42 is coaxially and rotatably arranged on the guide groove 46, and one end of the spiral conveyor 42 close to the input pipe 13 penetrates out of the mounting portion 11, the spiral conveyor 42 moves and stirs the silt; the collecting motor 43 is fixedly arranged on the lateral wall of the mounting portion 11, and the output shaft of the collecting motor 43 is connected with the one end of the spiral conveyor 42 penetrating out of the mounting portion 11, the collecting motor 43 drives the spiral conveyor 42 to rotate; the silt output pipe 44 is fixedly arranged on the bottom of the sediment tank 41 and is in communication with the guide groove 46, meanwhile, the silt output pipe 44 is provided with two and is arranged at the two ends of the guide groove 46, the silt output pipe 44 is vertically downwardly arranged, and the spiral conveyor 42 can be forwardly or reversely rotated, therefore, the two silt output pipes 44 are used for adapting the output of the silt when the spiral conveyor 42 is forwardly or reversely rotated; the storage tank 45 is provided with two and is fixedly arranged on the bottom of the two silt output pipes 44, and the storage tank 45 is in communication with the silt output pipe 44, meanwhile, the storage tank 45 is used for storing the silt output by the silt output pipe 44.

[0079] The stirring assembly 6 is arranged on the sediment tank 41 and between the rotating cage 21 and the spiral conveyor 42, the stirring assembly 6 comprises a stirring rod 61, stirring blades 62, first and second gears 63 and 64 and a connecting gear 65, the stirring rod 61 is rotatably arranged on the sediment tank 41 and between the rotating cage 21 and the spiral conveyor 42, and the axis of the stirring rod 61 is parallel to the axis of the spiral conveyor 42; the stirring blades 62 are fixedly arranged on the stirring rod 61 and are arranged in multiple along the axis and the radial direction of the stirring rod 61, the stirring blades 62 are fixedly arranged with mounting strips by screws, and the mounting strips are fixedly arranged with brushes for cleaning the first filter hole 27.

[0080] The first gear 63 is keyed on one end of the spiral conveyor 42 penetrating the mounting portion 11, the second gear 64 is keyed on one end of the stirring rod 61 penetrating the mounting portion 11, the connecting gear 65 is rotatably mounted on the outer wall of the settling tank 41, and the connecting gear 65 is located between and engaged with the first gear 63 and the second gear 64, and the number of teeth of the connecting gear 65 is less than that of the first gear 63 and greater than that of the second gear 64, so that the stirring rod 61 rotates at a speed greater than that of the spiral conveyor 42 and in the same direction.

[0081] With reference to Figure 1 and Figure 2 The second collecting assembly 5 includes a collecting tank 51 and a gravel output pipe 52. The containing portion 12 is located on the side of the settling tank 41 away from the input pipe 13, and the containing portion 12 is in communication with the bottom of the mounting portion 11 and extends horizontally to the side of the mounting portion 11 away from the input pipe 13. The collecting tank 51 is prismatic and has a larger top cross-sectional area than a bottom cross-sectional area. The top of the collecting tank 51 is integrally arranged on the bottom of the mounting portion 11 and is in communication with the mounting portion 11. The collecting tank 51 is located on the side of the settling tank 41 and is located in the second collecting area 16. The collecting tank 51 is in communication with the end of the containing portion 12 close to the settling tank 41. A sand blocking plate 53 is fixedly mounted on the side wall of the collecting tank 51 in communication with the containing portion 12. A plurality of water passing holes 54 are formed in the sand blocking plate 53 for allowing sewage to pass through and blocking sand and gravel. The bottom of the collecting tank 51 is flush with the bottom of the containing portion 12. When the sand and gravel settle in the collecting tank 51 for collection, the sewage passes through the sand blocking plate 53 and enters the containing portion 12. The gravel output pipe 52 is fixedly mounted on the bottom of the collecting tank 51 and is vertically downward. The bottom of the gravel output pipe 52 is also fixedly mounted with a storage tank 45.

[0082] With reference to Figure 2 and Figure 4 The bottom of the storage tank 45 is in an open state. Control assemblies 7 are arranged on the storage tank 45 and the silt output pipe 44 for controlling the silt output pipe 44 to be closed when the storage tank 45 is opened or the silt output pipe 44 to be opened when the storage tank 45 is closed. Control assemblies 7 are also arranged on the gravel output pipe 52 and the storage tank 45 for controlling the gravel output pipe 52 to be closed when the storage tank 45 is opened or the gravel output pipe 52 to be opened when the storage tank 45 is closed. The control assembly 7 connected with the silt output pipe 44 will be described below.

[0083] The control assembly 7 comprises a first plate body 71 and a second plate body 72, a first driving member 73 and a second driving member 74, the first plate body 71 is horizontally slidingly installed on the sediment output pipe 44 and used for controlling the opening and closing of the sediment output pipe 44, and the second plate body 72 is horizontally slidingly installed on the bottom of the storage tank 45 and used for controlling the opening and closing of the storage tank 45; the first driving member 73 and the second driving member 74 are both electric push rods or air cylinders, the first driving member 73 is fixedly installed on the sediment output pipe 44, and the piston rod of the first driving member 73 is connected with the first plate body 71 and used for driving the first plate body 71 to move, the second driving member 74 is fixedly installed on the outer side wall of the storage tank 45, and the piston rod of the second driving member 74 is connected with the second plate body 72 and used for driving the second plate body 72 to move.

[0084] With reference to Figure 2 and Figure 4 , the second driving member 74 drives the second plate body 72 to move to close the storage tank 45, and then the first driving member 73 drives the first plate body 71 to move to open the sediment output pipe 44, so as to realize the storage of the sediment in the storage tank 45, the sediment enters the sediment output pipe 44 under the pushing action of the screw conveyor 42, and then the sediment enters the storage tank 45 for storage, and the water in the storage tank 45 flows back to the sedimentation tank 41 and the mounting portion 11 under the pushing of the sediment, until the storage tank 45 is filled with sediment.

[0085] The first driving member 73 drives the first plate body 71 to move to close the sediment output pipe 44, and then the second driving member 74 drives the second plate body 72 to move to open the storage tank 45, the sediment in the storage tank 45 falls downward to be output, and at the same time, the sediment continues to accumulate on the first plate body 71 and continues to push the water to flow back, after the sediment in the storage tank 45 is conveyed, the process of storing the sediment in the storage tank 45 is continuously repeated, so that the sediment accumulated on the first plate body 71 falls downward to be stored in the storage tank 45, the sediment output from the storage tank 45 has a lower water content, and at the same time, the sediment output pipe 44 continues to collect the sediment when the storage tank 45 outputs the sediment, and the sand and gravel collection and the sediment collection operation are the same, so as to improve the purification effect and efficiency of the soil.

[0086] With reference to Figure 4 and Figure 5The sand output pipe 44 is provided with a drainage assembly 8 connected with the gravel output pipe 52, the drainage assembly 8 comprises a drainage pipe 81, a filter plate 82, a water collecting tank 83 and a water collecting pump 84, the two ends of the drainage pipe 81 are fixedly connected with the sand output pipe 44 and the gravel output pipe 52 respectively, the drainage pipe 81 is communicated with the sand output pipe 44 and the gravel output pipe 52 and is located above the first plate body 71, and mounting holes 811 are formed at the two ends of the drainage pipe 81 and above the axis of the drainage pipe 81; the filter plate 82 is provided with two and is detachably installed at the two ends of the drainage pipe 81, the filter plate 82 is vertically downwardly inserted and installed on the mounting hole 811, and an arc-shaped plate 821 is fixedly installed on the filter plate 82 and abuts against the drainage pipe 81, a fixing screw is threadedly connected on the arc-shaped plate 821 and the drainage pipe 81, and the filter plate 82 is used for filtering the water entering the drainage pipe 81 from the sand output pipe 44.

[0087] A vertically downward flow pipe 812 is fixedly installed on the drainage pipe 81 and between the two filter plates 82, and the water collecting tank 83 is fixedly installed on the bottom end of the flow pipe 812, when the sand or gravel enters the storage tank 45, the water is pushed to flow back upward, part of the water enters the drainage pipe 81, is filtered by the filter plate 82 and then flows into the water collecting tank 83 to be collected, a water passing pipe 831 is fixedly installed on the side wall of the water collecting tank 83 and is communicated with the water collecting tank 83, and the water collecting pump 84 is fixedly installed on the water passing pipe 831, and the water collecting pump 84 is started to discharge the water in the water collecting tank 83 and is communicated with the adding mechanism 10.

[0088] Referring to Figure 2 and Figure 6 The pushing mechanism 2 further comprises a floating oil collecting assembly 9, the floating oil collecting assembly 9 is arranged on the containing part 12 and is used for collecting floating oil on water. The floating oil collecting assembly 9 comprises a first control plate 91, a second control plate 92, a third control plate 93 and a fourth control plate 94, an oil collecting pipeline 95 and a circulating water pipe 96, the first control plate 91, the second control plate 92, the third control plate 93 and the fourth control plate 94 are spaced apart and installed on the inner side wall of the containing part 12 along the length direction of the containing part 12 and are all in a vertical state, and the first control plate 91 is located on the side closest to the mounting part 11; the first control plate 91, the second control plate 92 and the containing part 12 cooperate to form an oil collecting groove 911 for the water and the floating oil in the containing part 12 to overflow into, and the third control plate 93, the fourth control plate 94 and the containing part 12 cooperate to form a sewage groove 932.

[0089] The bottom end of the second control plate 92 is formed with an overflow channel 921 with the inner bottom wall of the containing portion 12. The second control plate 92, the third control plate 93 and the containing portion 12 cooperate to form an overflow cavity 931 for water overflow into the sewage tank 932, and the overflow cavity 931 is communicated with the oil collecting groove 911 through the overflow channel 921. The fourth control plate 94 is formed with a storage area 941 for collecting light garbage between the fourth control plate 94 and the inner side wall of the containing portion 12. The light garbage falling from the cage 22 falls into the storage area 941 for collection. The top end of the first control plate 91 is above the third control plate 93, the collecting tank 51 and the sedimentation tank 41. The top ends of the second control plate 92 and the fourth control plate 94 are flush and above the first control plate 91.

[0090] Referring to Figure 1 , Figure 2 and Figure 6 , the oil collecting pipeline 95 is fixedly installed on the outer side wall of the containing portion 12, and the oil collecting pipeline 95 is above the third control plate 93 and communicated with the oil collecting groove 911. The circulating water pipeline 96 is fixedly installed on the outer side wall of the containing portion 12, and the circulating water pipeline 96 is below the top end of the third control plate 93 and communicated with the sewage tank 932. The circulating water pipeline 96 is communicated with the adding mechanism 10. The water outlet pipe 85 communicated with the sewage tank 932 is fixedly installed on the water collecting pump 84. The water collecting pump 84 is started to make the sewage in the water collecting tank 83 backflow into the sewage tank 932. The one-way valve is fixedly installed on the water outlet pipe 85, and the one-way valve makes the water in the water outlet pipe 85 only enter the sewage tank 932.

[0091] The adding mechanism 10 includes a heating pipe 101, an adding pump 102 and a water adding pipe 103, and a water level detector 104. The heating pipe 101 is fixedly installed in the sewage tank 932 and used for heating and keeping warm the sewage. The adding pump 102 is fixedly installed on the outer side wall of the containing portion 12, and the adding pump 102 is fixedly connected with the circulating water pipeline 96. The control box for controlling the start and stop of the adding pump 102 is fixedly installed on the containing portion 12. The water adding pipe 103 is fixedly installed on the adding pump 102 and fixedly connected with the upper surface of the mounting portion 11 close to one end of the input pipe 13. The adding pump 102 is started to make the hot water in the sewage tank 932 added into the mounting portion 11 through the water adding pipe 103, and also can add water into the sewage tank 932 for supplement.

[0092] The water level detector 104 is fixedly installed on the inner wall of the installation portion 11, and the water level detector 104 detects the water level in the installation portion 11, so that the hot water level is above the collection tank 51, the sediment tank 41 and the first control panel 91, and the hot water level is below the second cylindrical segment 26; meanwhile, a plurality of floating oil holes 251 for floating oil to pass through are arranged on the connecting segment 25 and above the collection tank 51 and the sediment tank 41, the floating oil on the water surface in the installation portion 11 is located inside the cage body 22, the floating oil is pushed by the water and the soil to pass through the floating oil holes 251 and enter the containing portion 12, and the water can also pass through the floating oil holes 251, and then the floating oil and the water overflow into the oil collection groove 911, and the floating oil continues to float on the water surface, and the water enters the overflow cavity 931 under the extrusion of the floating oil.

[0093] With the increase of the floating oil and the water, the liquid level of the floating oil in the oil collection groove 911 and the liquid level of the water in the overflow cavity 931 are both raised, and according to the pressure formula P = ρgh, the density ρ of the floating oil is less than the density ρ of the water, and the oil collection groove 911 is in communication with the overflow cavity 931, when the pressure balance of the two is maintained, the liquid level of the floating oil in the oil collection groove 911 is higher than the liquid level of the water in the overflow cavity 931, so that the floating oil is first overflowed to be collected through the oil collection pipeline 95, and then with the increase of the floating oil and the water, the floating oil in the oil collection groove 911 continues to be collected through the oil collection pipeline 95, and the water in the overflow cavity 931 overflows into the sewage tank 932 to be collected, so that the floating oil in the water is removed. The heating pipe 101 heats the sewage in the sewage tank 932, and the water level detector 104 checks the water level height in the installation portion 11, when it is detected that the water level is lower than a specified value, the adding pump 102 is started, the sewage in the sewage tank 932 enters the installation portion 11 through the water adding pipe 103, and the entering water pushes the water and the floating oil in the installation portion 11 to move towards the first control panel 91, so that the removal of the floating oil in the soil is continuously realized.

[0094] The working principle of the embodiment of the application is as follows:

[0095] The soil is continuously added into the cage body 22 through the feed hopper 14 and the input pipe 13, the driving motor 32 is started to drive the cage body 22 and the spiral blade 23 to rotate at the same time, so that the soil is stirred and turned and the soil and the water are pushed to move, and the soil is soaked in the hot water, so that the soil is loosened to form mud and sandstone, and the oil in the soil floats to the water surface to form floating oil, the mud is downwardly settled into the sediment tank 41 through the first filter hole 27, and the sandstone continues to move and is downwardly settled into the collection tank 51 through the second filter hole 28 to be collected, the water enters the containing portion 12 through the sand separating plate 53, and the floating oil enters the containing portion 12 through the floating oil hole 251.

[0096] The floating oil and water continue to move and overflow into the oil collecting tank 911, the floating oil in the oil collecting tank 911 continues to float on the water surface, and the water enters the overflow chamber 931, as the water and floating oil increase, the height of the floating oil is higher than the height of the water in the overflow chamber 931, so the floating oil is first overflowed and collected through the oil collecting pipeline 95, and as the water and floating oil continue to increase, the water in the overflow chamber 931 overflows into the sewage tank 932, and the floating oil continues to overflow and collect through the oil collecting pipeline 95, so as to realize the removal of the floating oil in the water, and the heating pipe 101 heats and keeps warm the water in the sewage tank 932, and the water level detector 104 detects the water level in the installation part 11, and the addition pump 102 is started to add hot water in the sewage tank 932 to the installation part 11, so as to keep the water level in the installation part 11 at a certain height, thereby improving the purification efficiency and effect of the soil.

[0097] The collecting motor 43 drives the spiral conveyor 42 to rotate, so that the sediment in the sediment tank 41 enters the storage tank 45 for storage, and the water returns to the sediment tank 41 and the installation part 11 under the push of the sediment, until the storage tank 45 is full of sediment, the first driving part 73 drives the first plate body 71 to move to close the sediment output pipe 44, and then the second driving part 74 starts to control the output of the sediment in the storage tank 45, while the sediment continues to accumulate on the first plate body 71, and after the sediment in the storage tank 45 is output, the second driving part 74 starts to control the storage tank 45 to close, and then the first driving part 73 controls the sediment output pipe 44 to open, so that the storage tank 45 can continue to store sediment, and the sediment on the first plate body 71 directly falls into the storage tank 45, and the sand output and the sediment output are operated in the same way, so that the content of hot water in the output sediment and sand is low, thereby improving the convenience of collecting sediment and sand, improving the purification efficiency of the soil, and reducing the loss of hot water, achieving energy saving and environmental protection.

[0098] The above description is only an optional embodiment of the present disclosure and is not used to limit the present disclosure. Those skilled in the art can make various modifications and changes to the present disclosure. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

[0099] Although the claims in the present application have been made with respect to a specific combination of features, it should be understood that the scope of the present disclosure also includes any novel feature or any novel combination of features disclosed herein, whether explicitly or implicitly or any generalization thereof, regardless of whether it is involved in the same solution as any of the presently claimed claims.

Claims

1. An integrated oil sludge fractionation and classification treatment device, characterized by, The device comprises a tank containing hot water, a pushing mechanism arranged on the tank, and an adding mechanism arranged on the tank and used for adding hot water into the tank, wherein the pushing mechanism comprises: a rotating cage arranged on the tank and in a horizontal state, the rotating cage is immersed in the hot water and used for pushing and stirring the soil along the axis of the rotating cage, the tank is divided into a first collection area and a second collection area along the axis of the rotating cage, a plurality of first filter holes for passing silt are evenly arranged on the rotating cage and in the first collection area, a plurality of second filter holes for passing sand and stone are evenly arranged on the rotating cage and in the second collection area, the second filter holes have a larger diameter than the first filter holes, and the rotating of the rotating cage makes the soil pass through the first filter holes and the second filter holes in turn, at this time, the light garbage is moved to the outside of the rotating cage for collection; a driving assembly arranged on the tank and used for driving the rotating cage to rotate; a first collection assembly and a second collection assembly arranged on the tank and used for collecting the silt in the first collection area and the sand and stone in the second collection area, respectively; a floating oil collection assembly arranged on the tank and used for collecting floating oil on the water; the first collection assembly comprises: a sediment tank arranged on the bottom of the tank and used for collecting the silt deposited in the first collection area; a screw conveyor rotatably arranged on the bottom of the sediment tank and used for conveying the silt; a collection motor arranged on the sediment tank and used for driving the screw conveyor to rotate; a silt output pipe arranged on the bottom of the sediment tank and used for receiving the silt output by the screw conveyor; a storage tank arranged on the silt output pipe and used for collecting the output silt; the silt output pipe and the storage tank are provided with a control assembly that makes the silt output pipe closed when the storage tank is opened or the silt output pipe opened when the storage tank is closed; the second collection assembly comprises: a collection tank arranged on the bottom of the tank and used for collecting the sand and stone in the second collection area; a sand and stone output pipe arranged on the bottom of the collection tank and used for outputting the sand and stone, the sand and stone output pipe is also provided with a storage tank and a control assembly; a sand blocking plate for blocking the sand and stone and allowing the sewage to pass through is arranged on the side wall of the collection tank and located on the side close to the floating oil collection assembly, and the floating oil in the tank is located above the sand blocking plate.

2. The integrated device for grading and classifying oil sludge according to claim 1, wherein the silt output pipe is provided with a drainage assembly, and the drainage assembly comprises: a drainage pipe arranged on the silt output pipe and located above the control assembly and used for outputting the water in the silt output pipe; a filter plate detachably arranged at the connection between the drainage pipe and the silt output pipe and used for filtering the silt; a water collecting tank arranged on the drainage pipe and used for collecting water; a water collecting pump arranged on the water collecting tank and used for outputting the water in the water collecting tank and communicating with the adding mechanism. the control assembly comprises:

3. The integrated sludge fractionation and treatment apparatus according to claim 1 or 2, wherein ​ The first plate body and the second plate body are movably arranged on the sediment output pipe and the storage tank respectively, so that the sediment output pipe is closed and the storage tank is opened to realize sediment output, or the storage tank is closed and the sediment output pipe is opened to realize sediment storage in the storage tank; The first driving member and the second driving member are arranged on the sediment output pipe and the storage tank respectively and are used for driving the first plate body and the second plate body to move respectively.

4. The integrated sludge fractionation and treatment apparatus of claim 1, wherein The rotating cage is divided into a first cylindrical segment, a connecting segment and a second cylindrical segment along the rotating cage axis, the diameter of the connecting segment gradually decreases, and the diameters of the two ends are the same as the diameters of the first cylindrical segment and the second cylindrical segment respectively, the diameter of the first cylindrical segment is larger than the diameter of the second cylindrical segment, the water level in the tank is below the second cylindrical segment, the connecting segment is above the second collecting assembly and is provided with a plurality of floating oil holes for floating oil to pass through, and the driving assembly is connected with the second cylindrical segment.

5. The integrated oil sludge grading and classification treatment device according to claim 4, wherein the floating oil collecting assembly is below the second cylindrical segment and communicates with the floating oil holes, and the floating oil collecting assembly comprises: The first control plate, the second control plate, the third control plate and the fourth control plate are arranged on the tank in the direction of the rotating cage axis and are connected with the inner bottom wall of the tank at the bottom ends, the first control plate, the second control plate and the tank cooperate to form an oil collecting groove for the overflow of water and floating oil in the tank, the third control plate, the fourth control plate and the tank cooperate to form a sewage groove, the bottom end of the second control plate and the inner bottom wall of the tank form an overflow channel, the second control plate, the third control plate and the tank cooperate to form an overflow cavity which communicates with the oil collecting groove through the overflow channel and is used for the overflow of water into the sewage groove, and the fourth control plate and the inner side wall of the tank form a storage area for collecting light garbage, the top end of the first control plate is above the third control plate, and the top ends of the second control plate and the fourth control plate are above the first control plate. The oil collecting pipeline is arranged on the tank and is above the third control plate and communicates with the oil collecting groove. The circulating water pipe is arranged on the tank and is below the third control plate and communicates with the sewage groove, and the circulating water pipe communicates with the adding mechanism.

6. The integrated oil sludge grading and classification treatment device according to claim 5, wherein the adding mechanism comprises: The heating pipe is arranged in the sewage groove and is used for heating the sewage. The adding pump is arranged on the tank and communicates with the circulating water pipe. The water adding pipe is arranged on the adding pump and communicates with the end of the tank away from the circulating water pipe. The water level detector is arranged in the tank and is used for detecting the water level in the tank and is electrically connected with the adding pump.

7. The integrated oil sludge grading and classification treatment device according to claim 1, wherein the adding mechanism comprises: The stirring assembly is arranged on the sediment tank and is between the rotating cage and the screw conveyor, and the stirring assembly comprises: ​ ​ ​ An agitating rod is arranged on the sedimentation tank and located between the rotating cage and the screw conveyor and used for agitating the sludge, and the agitating rod axis is parallel to the rotating cage axis; An agitating blade is arranged on the agitating rod; A first gear and a second gear are arranged on the screw conveyor and the agitating rod respectively; A connecting gear is arranged on the sedimentation tank and engaged with the first gear and the second gear, and the connecting gear has less gear teeth than the first gear and more gear teeth than the second gear.

8. The integrated sludge fractionation and treatment apparatus of claim 7, wherein, The agitating blade is detachably mounted with a mounting strip, and a brush for cleaning the first filter hole is arranged on the mounting strip.

Images