A waste mineral oil quick layering pretreatment device and method

Abstract

The application relates to a waste mineral oil quick-layering pretreatment device, which comprises a stirring barrel, an oil inlet pipe is fixedly communicated above the stirring barrel, a barrel cover is fixedly connected inside the stirring barrel, a discharging assembly for controlling the proportioning between alkali liquor and waste mineral oil and other auxiliary materials is arranged above the barrel cover, a screening assembly for filtering the impurities in the waste mineral oil is arranged below the barrel cover, a stirring assembly for stirring and mixing the waste mineral oil is arranged below the stirring barrel, the inner side surface of the stirring barrel is wiped by a scraper, waste mineral oil is prevented from adhering to the inner wall of the stirring barrel, the effect of waste mineral oil sedimentation is affected, the efficiency of aeration can be improved, the impurities in the waste mineral oil are filtered, the reaction efficiency between the alkali liquor and the waste mineral oil and other auxiliary materials can be accelerated through the cooperation between the stirring blade, the scraper and the stirring plate, the waste mineral oil sedimentation speed is improved, and the treatment efficiency is high.

Description

Technical Field

[0001] This application relates to the field of waste mineral oil treatment technology, and in particular to a rapid stratification pretreatment device and method for waste mineral oil. Background Technology

[0002] Waste mineral oil mainly refers to waste lubricating oil and engine oil discarded from machinery, transportation equipment, etc. Its physical and chemical properties change during use, rendering it unusable. Because waste mineral oil contains various toxic substances, it poses a certain risk to human health and can pollute water resources and soil if it enters the environment.

[0003] The usual method for treating waste mineral oil is to add alkaline solution to the waste mineral oil tank, stir for a period of time, and then put it into a settling tank for settling. Due to the high viscosity of waste mineral oil, even with stirring, it is not easy to ensure the uniformity of the mixture between the alkaline liquid and the waste mineral oil. The uneven mixing of alkaline liquid and waste mineral oil prevents rapid stratification, resulting in prolonged settling time. Therefore, a rapid stratification pretreatment device and method for waste mineral oil is proposed. Summary of the Invention

[0004] In order to improve the defect of uneven mixing of alkali solution and waste mineral oil in related technologies, this application provides a rapid stratification pretreatment device and method for waste mineral oil.

[0005] The waste mineral oil rapid stratification pretreatment device provided in this application adopts the following technical solution: A rapid stratification pretreatment device for waste mineral oil includes a mixing tank, an oil inlet pipe fixedly connected to the top of the mixing tank, a tank cover fixedly connected inside the mixing tank, a feeding component for controlling the ratio of auxiliary materials such as alkali to waste mineral oil above the tank cover, a screening component for filtering impurities inside the waste mineral oil below the tank cover, a mixing component for mixing the waste mineral oil below the mixing tank, a fixing sleeve fixedly connected to the periphery of the mixing tank, a fixing rod fixedly connected to the surface of the fixing sleeve, and a bracket fixedly connected to the surface of the fixing rod.

[0006] By adopting the above technical solution, when the stirring component stirs the waste mineral oil inside, the screening component can effectively filter the waste mineral oil, which facilitates effective stirring of the waste mineral oil inside, improves the contact between the alkali solution and other auxiliary materials and the waste mineral oil, and increases the settling speed of the waste mineral oil. At the same time, the feeding component can effectively control the stirring ratio between the alkali solution and other auxiliary materials and the waste mineral oil, improve the settling speed of the waste mineral oil, and facilitate full contact between the waste mineral oil and the alkali solution and other auxiliary materials. The working efficiency is high, and it can achieve rapid stratification of alkali solution and waste oil.

[0007] Optionally, the stirring assembly includes a motor and a cylindrical cam. The stirring assembly controls the screening assembly to filter impurities floating on the surface of the waste mineral oil via the cylindrical cam. The stirring assembly controls the feeding assembly to adjust the ratio between the auxiliary materials such as alkali and the waste mineral oil via the motor. The output end of the motor is fixedly connected to a rotating shaft. The rotating shaft is fixedly connected to the cylindrical cam. A small sprocket is fixedly connected to the surface of the rotating shaft. A chain is meshed with the surface of the small sprocket. The small sprocket drives a large sprocket through the chain. Several sets of scrapers are fixedly connected above the large sprocket.

[0008] By adopting the above technical solution, during operation, the motor rotates, driving the rotating shaft to rotate. The rotating shaft then drives the small sprocket to rotate, which in turn drives the large sprocket to rotate via a chain. This rapidly rotates the stirring plate above the large sprocket, stirring the waste mineral oil that has settled at the bottom of the mixing tank, making the stirring more uniform. At the same time, the rotation of the large sprocket drives several sets of scrapers to rotate, wiping the inner wall of the mixing tank and preventing the waste mineral oil from adhering to the inner wall, thus affecting the efficiency of stirring between the waste mineral oil and the auxiliary materials.

[0009] Optionally, a number of stirring plates are fixedly connected above the large sprocket, a first pulley is fixedly connected above the rotating shaft, a belt is driven by friction on the surface of the first pulley, a second pulley is connected to the first pulley by belt drive, a stirring shaft is fixedly connected inside the second pulley, a number of stirring blades are fixedly connected to the surface of the stirring shaft, the lower end of the stirring shaft is rotatably connected to the upper surface of the large sprocket, a number of crushing blades are fixedly connected to the upper end of the stirring shaft, and a crushing box is provided on the outside of the crushing blades.

[0010] By adopting the above technical solution, the rotation of several sets of crushing blades and several sets of stirring blades can crush the auxiliary materials, allowing the auxiliary materials added to the mixing tank to come into full contact with the waste mineral oil. The rotation of the stirring blades can fully mix the waste mineral oil and alkaline solution and other auxiliary materials poured into the mixing tank, thereby improving the degree of contact between them.

[0011] Optionally, the screening assembly includes a first piston rod, which is slidably connected to the lower surface of a cylindrical cam. A first piston cylinder is slidably connected to the surface of the first piston rod, and an aeration pipe is fixedly connected to the surface of the first piston cylinder. One end of the aeration pipe is fixedly connected to the bottom of the mixing tank. A sliding rod is provided above the first piston rod, and a mating plate is rotatably connected inside the sliding rod. The upper end of the mating plate is fixedly connected to the lower surface of the tank cover.

[0012] By adopting the above technical solution, the inside of the mixing tank is aerated through the aeration pipe during operation. On the one hand, this improves the efficiency of the mixing blades in mixing the waste mineral oil inside the mixing tank. On the other hand, it aerates the impurities floating inside the waste mineral oil to the surface of the waste mineral oil, where they are adsorbed by the adsorption plate below the swing plate. This effectively improves the mixing quality between the waste mineral oil and the alkali solution. At the same time, the swing plate can filter the impurities contained in the poured waste mineral oil and remove the filtered impurities from the inside of the device, thus improving the settling effect of the waste mineral oil.

[0013] Optionally, a swing plate is fixedly connected to one end of the slide rod, two sets of discharge pipes are fixedly connected to one side of the swing plate, an adsorption plate is rotatably connected to the lower surface of the swing plate, a connecting rod is fixedly connected to the side of the adsorption plate, a corrugated plate is provided on one side of the connecting rod, a support plate is fixedly connected to the side of the corrugated plate, the support plate is fixedly connected to the bracket, and a spring column is provided at the contact position between the adsorption plate and the swing plate.

[0014] By adopting the above technical solution, the connecting rod set on the side of the adsorption plate intermittently pushes the adsorption plate to move during movement. This not only filters and adsorbs impurities inside the waste mineral oil, but also increases the adsorption area of ​​the adsorption plate and improves the filtration quality.

[0015] Optionally, the feeding assembly includes a plum blossom cam, which is fixedly connected to the stirring shaft. A push rod is provided on one side of the plum blossom cam, and a feeding plate is hinged to one end of the push rod via a hinged ball joint. The feeding plate is rotatably connected to the crushing box via a pin. A reset element is provided on the surface of the push rod, and the push rod is slidably connected to the barrel cover. A second piston rod is provided on the other side of the plum blossom cam, and a second piston cylinder is slidably connected to the surface of the second piston rod. A feeding pipe is fixedly connected to the surface of the second piston cylinder, and a storage box is fixedly connected to the upper end of the feeding pipe. The storage box is fixedly connected to the crushing box.

[0016] By adopting the above technical solution, during operation, the intermittent rotation of the plum blossom cam pushes the feed plate at one end of the push rod to move. The movement of the feed plate can quickly drop the crushed auxiliary materials inside the crushing box into the mixing tank. At the same time, the movement of the plum blossom cam pushes the second piston rod to slide inside the second piston cylinder, which can intermittently add the alkali solution inside the storage tank into the mixing tank through the spray nozzle on the surface. This can accurately control the ratio between the auxiliary materials, alkali solution and waste mineral oil, and improve the quality of waste mineral oil settling.

[0017] Optionally, the surface of the second piston cylinder is fixedly connected to a spray nozzle, which is fixedly connected to the barrel lid. A rotating plate is provided below the plum blossom cam, and the rotating plate is fixedly connected to the stirring shaft. Two sets of contact rods are provided on the side of the rotating plate. The upper part of the contact rod is hinged to the barrel lid through a hinge ball. A wiping plate is hinged to the lower end of the contact rod through a hinge ball. A brush is fixedly connected to the lower end of the wiping plate. The brush slides on the surface of the swing plate. A telescopic spring for extending and retracting the brush is provided inside the wiping plate.

[0018] By adopting the above technical solution, the rotation of the rotating plate drives the two sets of contact rods to move to both sides. The reset element set between the hinge ball at the upper end of the contact rod and the barrel cover can cause the brush below the wiping plate to reciprocate on the surface of the swing plate. When the swing plate swings, the hinge ball set below the contact rod can make the wiping plate move, which can make the brush fully contact the surface of the swing plate, thereby sweeping the impurities filtered on the surface of the swing plate into the discharge groove opened on its surface, and thus expelling them from the inside of the device.

[0019] Optionally, six sets of stirring blades are arranged at a 60-degree angle on the surface of the stirring shaft. The stirring shaft and the crushing box rotate. A support column is rotatably connected to the bottom of the large sprocket. A base plate is fixedly connected to the support column below. The base plate is fixedly connected to the bracket. The large sprocket is rotatably connected to the mixing tank. Through the above improvements, the waste mineral oil inside the mixing tank can be effectively stirred and mixed by setting multiple sets of stirring blades.

[0020] Optionally, a one-way valve is provided between the aeration pipe and the spray nozzle on the surface of the second piston cylinder, a reset element is provided between the sliding position of the second piston rod and the second piston cylinder, a discharge plate is rotatably connected to the side of the mixing tank by a pin, the motor is fixedly connected to the bottom plate, and several sets of through holes are opened on the surface of the swing plate, with two sets of discharge troughs provided between the through holes.

[0021] By adopting the above technical solution, the settling speed of waste mineral oil during the pretreatment process of this device can be increased, the alkaline solution and waste mineral oil can be fully combined, and impurities in the waste mineral oil can be cleaned, making it easier for staff to carry out subsequent treatment of waste mineral oil, and effectively improving the quality and efficiency of waste mineral oil treatment.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. This invention utilizes an electric motor to drive a rotating shaft, which in turn drives a small sprocket. The small sprocket meshes with and drives a large sprocket on the inner side of a chain. The large sprocket's rotation causes the scraper above to wipe the inner surface of the mixing tank, preventing waste mineral oil from adhering to the inner wall and affecting its settling effect. Simultaneously, the large sprocket drives the stirring plate to agitate the bottom of the waste mineral oil, improving aeration efficiency and filtering impurities. The rotating shaft also drives a first pulley, which in turn drives a second pulley via a belt. The second pulley then drives the stirring shaft, which in turn drives several sets of stirring blades on its surface to agitate the waste mineral oil inside the mixing tank. Through the interaction between the stirring blades, scraper, and stirring plate, the reaction efficiency between the alkali solution and the waste mineral oil is accelerated, increasing the settling speed and resulting in high processing efficiency.

[0023] 2. This invention uses a rotating shaft to drive a cylindrical cam to rotate. The rotation of the cylindrical cam intermittently pushes the first piston rod inside the first piston cylinder, allowing outside air to be injected into the bottom of the mixing tank through the aeration pipe to aerate the waste mineral oil being mixed, thereby improving the settling efficiency. At the same time, the rotation of the cylindrical cam drives a sliding rod to swing around a pin shaft below the mating plate. The swinging rod drives a swing plate to swing, which can filter the waste mineral oil poured into the mixing tank. Simultaneously, the movement of the swing plate can discharge the filtered impurities through the discharge pipe to the surface of the discharge plate, thereby improving the quality of waste mineral oil mixing and accelerating the settling speed of the waste mineral oil inside. At the same time, the swinging plate drives the adsorption plate below to move, which drives the connecting rod to move. The moving connecting rod contacts the corrugated plate, which can intermittently adsorb impurities floating on the surface of the waste mineral oil, thereby improving the efficiency of waste mineral oil treatment inside.

[0024] 3. This invention uses the rotation of the stirring shaft to drive the rotation of the plum blossom cam. The rotation of the plum blossom cam intermittently pushes the second piston rod to slide inside the second piston cylinder, which can draw the alkaline solution inside the storage tank into the second piston cylinder through the feed pipe. When the second piston rod moves again, it can spray the alkaline solution inside the second piston cylinder into the mixing tank through the spray nozzle on the surface. At the same time, the intermittent movement of the plum blossom cam pushes the push rod to reciprocate. The push rod pushes the feed plate to swing on the side of the crushing box through the hinge ball, which can accelerate the falling speed of the crushed auxiliary materials. The plum blossom cam can control the ratio between waste mineral oil and alkaline solution and other auxiliary materials, which can effectively improve the settling efficiency of waste mineral oil. Attached Figure Description

[0025] Figure 1 This is a flowchart illustrating the steps of a rapid stratification pretreatment method for waste mineral oil in this embodiment. Figure 2 This is a schematic diagram of the overall structure of a rapid stratification pretreatment device for waste mineral oil according to this embodiment; Figure 3This is a schematic diagram of the internal structure of a rapid stratification pretreatment device for waste mineral oil according to this embodiment; Figure 4 This is a schematic diagram of the stirring assembly structure of a rapid stratification pretreatment device for waste mineral oil according to this embodiment; Figure 5 This is a schematic diagram of the screening component structure of a rapid stratification pretreatment device for waste mineral oil according to this embodiment; Figure 6 This is a bottom view of the screening component of a rapid stratification pretreatment device for waste mineral oil according to this embodiment; Figure 7 This is a schematic diagram of the feeding assembly structure of a rapid stratification pretreatment device for waste mineral oil according to this embodiment. Figure 8 This is a bottom view of the feeding component of a rapid stratification pretreatment device for waste mineral oil according to this embodiment; Explanation of reference numerals in the attached drawings: 1. Mixing tank; 2. Oil inlet pipe; 3. Discharge plate; 4. Support; 5. Base plate; 6. Fixing sleeve; 7. Fixing rod; 8. Tank lid; 9. Crushing box; 100. Mixing assembly; 101. Motor; 102. Rotating shaft; 103. Small sprocket; 104. Chain; 105. Large sprocket; 106. Scraper; 107. Support column; 108. Mixing shaft; 109. Mixing blade; 110. Cylindrical cam; 111. First pulley; 112. Belt; 113. Second pulley; 114. Crushing blade; 115. Mixing plate; 200. Screen Sub-components; 201, First piston rod; 202, First piston cylinder; 203, Aeration pipe; 204, Slide rod; 205, Swing plate; 206, Discharge pipe; 207, Matching plate; 208, Adsorption plate; 209, Connecting rod; 210, Corrugated plate; 211, Support plate; 300, Discharge assembly; 301, Plum blossom cam; 302, Push rod; 303, Discharge plate; 304, Second piston rod; 305, Second piston cylinder; 306, Discharge pipe; 307, Storage box; 308, Rotating plate; 309, Contact rod; 310, Wiping plate; 311, Brush. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0027] This application discloses a rapid stratification pretreatment device for waste mineral oil. (Refer to...) Figure 1 , Figure 2 and Figure 3A rapid stratification pretreatment device for waste mineral oil includes a mixing tank 1, an oil inlet pipe 2 fixedly connected to the top of the mixing tank 1, a tank cover 8 fixedly connected inside the mixing tank 1, a feeding component 300 for controlling the ratio between auxiliary materials such as alkali and waste mineral oil above the tank cover 8, a screening component 200 for filtering impurities inside the waste mineral oil below the tank cover 8, a mixing component 100 for mixing the waste mineral oil below the mixing tank 1, a fixing sleeve 6 fixedly connected to the outside of the mixing tank 1, a fixing rod 7 fixedly connected to the surface of the fixing sleeve 6, and a bracket 4 fixedly connected to the surface of the fixing rod 7.

[0028] Reference Figure 2 , Figure 3 and Figure 4 To facilitate the mixing of waste mineral oil with auxiliary materials such as alkali solution and improve the sedimentation efficiency of waste mineral oil, the mixing component 100 includes a motor 101 and a cylindrical cam 110. The mixing component 100 controls the screening component 200 to filter impurities floating on the surface of the waste mineral oil through the cylindrical cam 110. The mixing component 100 controls the feeding component 300 to adjust the ratio between auxiliary materials such as alkali solution and waste mineral oil through the motor 101. The output end of the motor 101 is fixedly connected to a rotating shaft 102. The rotating shaft 102 is fixedly connected to the cylindrical cam 110. A small sprocket 103 is fixedly connected to the surface of the rotating shaft 102. A chain 104 is meshed with the surface of the small sprocket 103. The small sprocket 103 meshes with the chain 104 to drive a large sprocket 105. Several sets of scrapers 106 are fixedly connected above the large sprocket 105.

[0029] Reference Figure 2 , Figure 3 and Figure 4 To facilitate the stirring of waste mineral oil and effectively prevent it from adhering to the inner wall of the mixing tank 1, thereby improving the mixing efficiency, several sets of stirring plates 115 are fixedly connected above the large sprocket 105. A first pulley 111 is fixedly connected above the rotating shaft 102. A belt 112 is driven by friction on the surface of the first pulley 111. A second pulley 113 is connected to the first pulley 111 via the belt 112. A stirring shaft 108 is fixedly connected inside the second pulley 113. Several sets of stirring blades 109 are fixedly connected to the surface of the stirring shaft 108. The lower end of the stirring shaft 108 is rotatably connected to the upper surface of the large sprocket 105. Several sets of crushing blades 114 are fixedly connected to the upper end of the stirring shaft 108. A crushing box 9 is provided on the outer side of the crushing blades 114.

[0030] Reference Figure 5 and Figure 6To facilitate the cleaning and adsorption of impurities inside the waste mineral oil and those generated during the stirring process, and to improve the contact between the alkali solution and the waste mineral oil, thereby increasing the settling efficiency, the screening component 200 includes a first piston rod 201. The first piston rod 201 is slidably connected to the lower surface of the cylindrical cam 110. A first piston cylinder 202 is slidably connected to the surface of the first piston rod 201. An aeration pipe 203 is fixedly connected to the surface of the first piston cylinder 202. One end of the aeration pipe 203 is fixedly connected to the bottom of the mixing tank 1. A sliding rod 204 is provided above the first piston rod 201. A mating plate 207 is rotatably connected inside the sliding rod 204. The upper end of the mating plate 207 is fixedly connected to the lower surface of the tank cover 8.

[0031] Reference Figure 5 and Figure 6 To facilitate the adsorption of impurities floating on the surface of waste mineral oil, a swing plate 205 is fixedly connected to one end of the slide bar 204. Two sets of discharge pipes 206 are fixedly connected to one side of the swing plate 205. An adsorption plate 208 is rotatably connected to the lower surface of the swing plate 205. A connecting rod 209 is fixedly connected to the side of the adsorption plate 208. A corrugated plate 210 is provided on one side of the connecting rod 209. A support plate 211 is fixedly connected to the side of the corrugated plate 210. The support plate 211 is fixedly connected to the bracket 4. A spring column is provided at the contact position between the adsorption plate 208 and the swing plate 205.

[0032] Reference Figure 5 , Figure 6 and Figure 7 To facilitate precise control of the ratio between waste mineral oil and auxiliary materials such as alkali solution, and to improve the settling quality of waste mineral oil, the feeding assembly 300 includes a plum blossom cam 301. The plum blossom cam 301 is fixedly connected to the stirring shaft 108. A push rod 302 is provided on one side of the plum blossom cam 301. One end of the push rod 302 is hinged to a feeding plate 303 via a hinge ball. The feeding plate 303 is rotatably connected to the crushing box 9 via a pin. A reset element is provided on the surface of the push rod 302. The push rod 302 is slidably connected to the barrel cover 8. A second piston rod 304 is provided on the other side of the plum blossom cam 301. A second piston cylinder 305 is slidably connected to the surface of the second piston rod 304. A feeding pipe 306 is fixedly connected to the surface of the second piston cylinder 305. A storage box 307 is fixedly connected to the upper end of the feeding pipe 306. The storage box 307 is fixedly connected to the crushing box 9.

[0033] Reference Figure 5 , Figure 6 and Figure 7To facilitate the discharge and cleaning of filtered impurities, a spray nozzle is fixedly connected to the surface of the second piston cylinder 305. The spray nozzle is fixedly connected to the barrel cover 8. A rotating plate 308 is provided below the plum blossom cam 301. The rotating plate 308 is fixedly connected to the stirring shaft 108. Two sets of contact rods 309 are provided on the side of the rotating plate 308. The upper part of the contact rod 309 is hinged to the barrel cover 8 through a hinge ball. The lower end of the contact rod 309 is hinged to a wiping plate 310 through a hinge ball. A brush 311 is fixedly connected to the lower end of the wiping plate 310. The brush 311 slides on the surface of the swing plate 205. A telescopic spring for extending and retracting the brush 311 is provided inside the wiping plate 310.

[0034] Reference Figure 5 , Figure 6 and Figure 7 To ensure the stability of the device during use, six sets of stirring blades 109 are arranged at a 60-degree angle on the surface of stirring shaft 108. Stirring shaft 108 and crushing box 9 are rotating. Support column 107 is rotatably connected to the bottom of large sprocket 105. Support column 107 is fixedly connected to bottom plate 5 below. Bottom plate 5 is fixedly connected to bracket 4. Large sprocket 105 is rotatably connected to stirring tank 1.

[0035] Reference Figure 5 , Figure 6 and Figure 7 To improve the smoothness of the device during use, a one-way valve is provided between the spray nozzles on the surface of the aeration pipe 203 and the second piston cylinder 305. A reset element is provided between the sliding positions of the second piston rod 304 and the second piston cylinder 305. The side of the mixing tank 1 is rotatably connected to the discharge plate 3 by a pin. The motor 101 is fixedly connected to the bottom plate 5. Several sets of through holes are opened on the surface of the swing plate 205, and two sets of discharge troughs are provided between the through holes.

[0036] This invention also proposes a treatment method for a rapid stratification pretreatment device for waste mineral oil. S1: The feeding component 300 can control the ratio between waste mineral oil and mixing auxiliary materials such as alkaline solution; S2: The screening component 200 can filter and clean the impurities inside the waste mineral oil as well as the impurities generated during the stirring process. S3: The stirring component 100 can uniformly stir and mix the waste mineral oil with added alkali solution and other auxiliary materials.

[0037] The implementation principle of the waste mineral oil rapid stratification pretreatment device in this application embodiment is as follows: After the device is installed, the worker connects the oil inlet pipe 2 to the waste mineral oil discharge pipe, then adds alkali solution into the storage tank 307, and adds other stirring materials into the crushing tank 9. At this time, waste mineral oil is discharged into the mixing tank 1, and simultaneously the motor 101 is started to rotate, driving the rotating shaft 102 to rotate. The rotating shaft 102 rotates, driving the small sprocket 103 to rotate. The small sprocket 103 meshes and drives the large sprocket 105 inside the chain 104 to rotate. The large sprocket 105 rotates. The rotating shaft 102 drives the scraper 106 and the stirring plate 115 to rotate. The rotation of the scraper 106 can scrape the inner wall of the mixing tank 1, so that the waste mineral oil adheres to the side wall of the mixing tank 1 and affects the mixing effect. At the same time, the rotation of the rotating shaft 102 drives the first pulley 111 above to rotate. The first pulley 111 drives the second pulley 113 to rotate through the belt 112. The rotation of the second pulley 113 drives several sets of stirring blades 109 below to stir the waste mineral oil inside the mixing tank 1. Meanwhile, the rotation of the stirring plate 115 can push the waste mineral oil at the bottom to assist the stirring blades 109 in stirring, resulting in high stirring efficiency. While the stirring blades 109 are stirring the waste mineral oil inside the mixing tank 1, the stirring shaft 108 driven by the second pulley 113 rotates. The rotation of the stirring shaft 108 drives the upper crushing blades 114 to rotate. The rotation of the crushing blades 114 can crush the auxiliary materials inside the crushing box 9. The crushed material will be discharged into the mixing tank 1 through the discharge plate 303 to mix with the waste mineral oil being stirred inside the mixing tank 1. At the same time, the rotation of the stirring shaft 108 drives the lobed cam 301 to rotate. The lobed cam 301 pushes the second piston rod 304 to slide inside the second piston cylinder 305, which can store the material. The alkaline solution inside the box 307 is drawn into the second piston cylinder 305 through the feed pipe 306. When the second piston rod 304 moves again, the alkaline solution inside the second piston cylinder 305 can be added into the mixing tank 1 through the surface-through spray nozzle to mix with the waste mineral oil. At the same time, the plum blossom cam 301 intermittently pushes the push rod 302 to move. The push rod 302 pushes the feed plate 303 to swing on the side of the crushing box 9, which can accelerate the speed at which the auxiliary materials fall into the mixing tank 1. The mixing efficiency is high. It can effectively control the ratio between the alkaline solution and the auxiliary materials and the waste mineral oil to accelerate the settling speed of the waste mineral oil. When the motor 101 drives the rotating shaft 102 to rotate, the rotating shaft 102 drives the cylindrical cam 110 to rotate. The rotation of the cylindrical cam 110 intermittently pushes the first piston rod 201 to slide inside the first piston cylinder 202, which can fill the bottom of the mixing tank 1 with outside air through the aeration pipe 203, thereby achieving the aeration effect and making the waste mineral oil settle more quickly. At the same time, the rotation of the cylindrical cam 110 pushes the slide rod 204 to swing up and down around the pin shaft. The swing of the slide rod 204 drives the swing plate 205 to swing. The movement of the swing plate 205 can filter impurities from the waste mineral oil poured into the mixing tank 1. At the same time, the filtered impurities are discharged through the discharge opening inside the swing plate 205. The discharge pipe 206 at one end of the tank discharges into the interior of the mixing tank 1 and falls onto the outside of the mixing tank 1 through the discharge plate 3, thereby improving the settling efficiency of waste mineral oil. At the same time, when the swing plate 205 swings, it drives the adsorption plate 208 to move. The movement of the adsorption plate 208 drives the connecting rod 209 on one side to make a circular motion around the pin axis. At this time, the movement of the connecting rod 209 contacts the wave plate 210. The wave plate 210 intermittently pushes the connecting rod 209 to move left and right. The movement of the connecting rod 209 drives the adsorption plate 208 to fan, which can adsorb impurities floating on the surface of the waste mineral oil being stirred below, thereby improving the stirring efficiency of the stirring blade 109 and accelerating the settling efficiency of waste mineral oil.

[0038] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A rapid stratification pretreatment device for waste mineral oil, comprising a stirring tank (1), characterized in that: An oil inlet pipe (2) is fixedly connected to the top of the mixing tank (1). A bucket cover (8) is fixedly connected inside the mixing tank (1). A feeding component (300) for controlling the ratio between auxiliary materials and waste mineral oil is provided above the bucket cover (8). A screening component (200) for filtering impurities inside the waste mineral oil is provided below the bucket cover (8). A stirring component (100) for stirring and mixing the waste mineral oil is provided below the mixing tank (1). A fixing sleeve (6) is fixedly connected to the outer periphery of the mixing tank (1). A fixing rod (7) is fixedly connected to the surface of the fixing sleeve (6). A bracket (4) is fixedly connected to the surface of the fixing rod (7). The stirring assembly (100) includes a motor (101) and a cylindrical cam (110). The stirring assembly (100) controls the screening assembly (200) to filter impurities floating on the surface of waste mineral oil through the cylindrical cam (110). The stirring assembly (100) controls the feeding assembly (300) to adjust the ratio between auxiliary materials and waste mineral oil through the motor (101). The output end of the motor (101) is fixedly connected to a rotating shaft (102). The rotating shaft (102) is fixedly connected to the cylindrical cam (110). A small sprocket (103) is fixedly connected to the surface of the rotating shaft (102). A chain (104) is meshed with the surface of the small sprocket (103). The small sprocket (103) is meshed with a large sprocket (105) through the chain (104). Several sets of scrapers (106) are fixedly connected above the large sprocket (105). Several sets of stirring plates (115) are fixedly connected above the large sprocket (105). A first pulley (111) is fixedly connected above the rotating shaft (102). A belt (112) is driven by friction on the surface of the first pulley (111). A second pulley (113) is connected to the first pulley (111) via the belt (112). A stirring shaft (108) is fixedly connected inside the second pulley (113). Several sets of stirring blades (109) are fixedly connected to the surface of the stirring shaft (108). The lower end of the stirring shaft (108) is rotatably connected to the upper surface of the large sprocket (105). Several sets of crushing blades (114) are fixedly connected to the upper end of the stirring shaft (108). A crushing box (9) is provided on the outside of the crushing blades (114).

2. The waste mineral oil rapid stratification pretreatment device according to claim 1, characterized in that: The screening assembly (200) includes a first piston rod (201), which is slidably connected to the lower surface of the cylindrical cam (110). A first piston cylinder (202) is slidably connected to the surface of the first piston rod (201). An aeration pipe (203) is fixedly connected to the surface of the first piston cylinder (202). One end of the aeration pipe (203) is fixedly connected to the bottom of the mixing tank (1). A slide rod (204) is provided above the first piston rod (201). A mating plate (207) is rotatably connected inside the slide rod (204). The upper end of the mating plate (207) is fixedly connected to the lower surface of the tank cover (8).

3. The waste mineral oil rapid stratification pretreatment device according to claim 2, characterized in that: One end of the slide bar (204) is fixedly connected to a swing plate (205). Two sets of discharge pipes (206) are fixedly connected to one side of the swing plate (205). An adsorption plate (208) is rotatably connected to the lower surface of the swing plate (205). A connecting rod (209) is fixedly connected to the side of the adsorption plate (208). A wave plate (210) is provided on one side of the connecting rod (209). A support plate (211) is fixedly connected to the side of the wave plate (210). The support plate (211) is fixedly connected to the bracket (4). A spring column is provided at the contact position between the adsorption plate (208) and the swing plate (205).

4. The waste mineral oil rapid stratification pretreatment device according to claim 3, characterized in that: The feeding assembly (300) includes a plum blossom cam (301), which is fixedly connected to the stirring shaft (108). A push rod (302) is provided on one side of the plum blossom cam (301). One end of the push rod (302) is hinged to a feeding plate (303) via a hinge ball. The feeding plate (303) is rotatably connected to the crushing box (9) via a pin. A reset element is provided on the surface of the push rod (302). The push rod (302) is slidably connected to the barrel cover (8). A second piston rod (304) is provided on the other side of the plum blossom cam (301). A second piston cylinder (305) is slidably connected to the surface of the second piston rod (304). A feeding pipe (306) is fixedly connected to the surface of the second piston cylinder (305). A storage box (307) is fixedly connected to the upper end of the feeding pipe (306). The storage box (307) is fixedly connected to the crushing box (9).

5. The waste mineral oil rapid stratification pretreatment device according to claim 4, characterized in that: The surface of the second piston cylinder (305) is fixedly connected to a spray nozzle, which is fixedly connected to the barrel cover (8). A rotating plate (308) is provided below the plum blossom cam (301), and the rotating plate (308) is fixedly connected to the stirring shaft (108). Two sets of contact rods (309) are provided on the side of the rotating plate (308). The upper part of the contact rod (309) is hinged to the barrel cover (8) through a hinge ball. The lower end of the contact rod (309) is hinged to a wiping plate (310) through a hinge ball. A brush (311) is fixedly connected to the lower end of the wiping plate (310). The brush (311) slides on the surface of the swing plate (205). A telescopic spring for extending and retracting the brush (311) is provided inside the wiping plate (310).

6. The waste mineral oil rapid stratification pretreatment device according to claim 5, characterized in that: The stirring blades (109) are arranged in six groups at a 60-degree angle on the surface of the stirring shaft (108). The stirring shaft (108) and the crushing box (9) are rotating. The bottom of the large sprocket (105) is rotatably connected to a support column (107). The support column (107) is fixedly connected to a base plate (5) below. The base plate (5) is fixedly connected to the bracket (4). The large sprocket (105) and the stirring tank (1) are rotatably connected.

7. The rapid stratification pretreatment device for waste mineral oil according to claim 6, characterized in that: One-way valves are provided between the spray nozzles on the surface of the aeration pipe (203) and the second piston cylinder (305). A reset element is provided between the sliding position of the second piston rod (304) and the second piston cylinder (305). The side of the mixing tank (1) is rotatably connected to the discharge plate (3) by a pin. The motor (101) is fixedly connected to the bottom plate (5). Several sets of through holes are opened on the surface of the swing plate (205), and two sets of discharge troughs are provided between the through holes.

8. The treatment method of the waste mineral oil rapid stratification pretreatment device according to any one of claims 1-7, characterized in that: S1: The ratio between waste mineral oil and mixing auxiliary materials is controlled by the feeding component (300); S2: The waste mineral oil is filtered and cleaned by the screening component (200) as well as the impurities generated during the stirring process; S3: The waste mineral oil with added auxiliary materials is uniformly stirred and mixed by the stirring component (100).

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