A purification device for efficiently treating oily wastewater

Abstract

The invention discloses a purification treatment device for efficiently treating oily wastewater. The oil separator and the oil removal mechanism can efficiently perform preliminary separation of macromolecular oil pollution in the wastewater; the pollution removal mechanism can clean the sediment impurities in the wastewater, and the sludge dehydration mechanism can separate the sediment into dry and wet parts, which is convenient for subsequent treatment; the stirring mechanism and the stirring blade mechanism can fully stir the wastewater added with flocculant; the ultrasonic generator promotes the flocculation and sedimentation process of the wastewater, greatly improves the wastewater treatment efficiency, and also utilizes the cleaning function of ultrasonic waves to avoid sediment and oil pollution being adhered to the mechanism in the device; the scraping mechanism can adjust the height according to the amount of scum, and allows liquid to pass through the overflow hole on the scraping plate, thereby reducing the wastewater from being brought into the scum collection box during the scraping process, and the scum is efficiently discharged from the liquid.

Description

Technical Field

[0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to a purification treatment device for efficiently treating oily wastewater. Background Art

[0002] The oil substances contained in oily wastewater include natural petroleum, petroleum products, tar and its fractions, as well as edible animal and vegetable oils and fats; if the oily wastewater is not recycled and treated and discharged into rivers, lakes or bays, it will pollute the water body and affect the survival of aquatic organisms; if used for agricultural irrigation, it will block the soil gaps and hinder the growth of crops; it will settle in industrial facilities and pipeline equipment together with suspended particles and iron oxide in the wastewater to form oily sludge balls with high viscosity, which will block pipelines and equipment and affect the normal production; in summary, oily wastewater pollution may cause devastating damage to the ecosystem, and also pose a serious threat to the production of enterprises and the maintenance of equipment.

[0003] After searching, the prior art authorization announcement number is CN 219098825 U, which is an industrial oily wastewater treatment device, including a treatment box, a filter box is arranged at the upper end of the treatment box, a discharge pipe is installed at the lower end of the filter box, and the discharge pipe is connected to the treatment box, a feed pipe is installed at the upper end of the filter box, and a valve is arranged on the surface of the feed pipe, a slide groove is symmetrically provided on the inner wall of the filter box, a fixed rod is installed inside the slide groove, a slider is sleeved on the outer surface of the fixed rod, a spring is sleeved on the outer surface of the fixed rod, and the spring is located below the slider, and a plug rail is symmetrically arranged inside the filter box, and the plug rail is fixedly connected to the slider, and a filter plate is arranged between the two plug rails; the utility model can remind the staff to replace the filter plate, and can replace the filter plate on time, and at the same time, can accurately extract the oil pollutants from the water; this device can effectively separate the macromolecular oil in the wastewater, but it is difficult to treat the dispersed oil and emulsified oil suspended in the wastewater.

[0004] After searching, the prior art authorization announcement number is CN 220723698 U, which is an industrial oily wastewater treatment device; comprising a box body, a partition is fixedly sleeved inside the box body, a baffle is fixedly sleeved inside the box body, a No. 1 roller is movably sleeved inside the box body, and a conveyor belt is movably sleeved outside the No. 1 roller; the industrial oily wastewater treatment device provided by the utility model has a No. 2 roller. When oil-water separation and purification is required, the rotating motor and the air pump are started, so that the air pump can inject air into the box body through the air pipe, so that the gas inside the box body can drive the oil to float from the inside of the water flow, and at this time, the rotating motor can drive the conveyor belt to drive inside the box body through the No. 2 roller, so that the conveyor belt can absorb the floating oil and then lift it out from the inside of the box body, thereby achieving the effect of oil-water separation, and thus bringing convenience to the treatment of oily wastewater; this device can effectively separate large molecular oil in wastewater, but cannot effectively clean other sediments in wastewater. Summary of the invention

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a purification treatment device for efficiently treating oily wastewater. The oil separator and the oil removal mechanism can efficiently perform preliminary separation of macromolecular oil pollution in the wastewater; the pollution removal mechanism can clean the sediment impurities in the wastewater, and the sludge dehydration mechanism separates the sediment into dry and wet parts, which is convenient for subsequent treatment; the stirring mechanism and the stirring blade mechanism can fully stir the wastewater added with flocculant; the ultrasonic generator promotes the flocculation and sedimentation process of the wastewater, greatly improves the wastewater treatment efficiency, and also utilizes the cleaning function of the ultrasonic wave to avoid the mechanism in the device from being adhered to sediment and oil pollution; the scraping mechanism can adjust the height according to the amount of scum, and allow the liquid to pass through the overflow hole on the scraping plate, thereby reducing the wastewater from being brought into the scum collection box during the scraping process, and the scum is efficiently discharged from the liquid.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

[0007] A purification device for efficiently treating oily wastewater, comprising an oil separator body, an oil removal mechanism, a dirt removal mechanism, a sludge dehydration mechanism, a dry sludge collection box, a filtrate collection box, a scum box body, a mixing tank body, a mixing tank base, an ultrasonic generator, a stirring mechanism, a scum scraping mechanism, a stirring blade mechanism, a scum collection box, a wastewater inlet, an oil separator outlet, a valve, a scum box inlet, a purified water outlet, and a sewage pipe I; the wastewater inlet is located at the front end of the oil separator body, the oil removal mechanism and the dirt removal mechanism are arranged inside the oil separator body, the oil removal mechanism is located above the inside of the oil separator body, and the dirt removal mechanism is located below the inside of the oil separator body; the sludge dehydration device comprises an oil separator body, an oil separator body, a dirt removal mechanism, a sludge dehydration device, a filtrate collection box ... The mechanism is located on the outer side of the oil separator box body, and the water outlet of the oil separator box is located at the rear end of the oil separator box body; a valve is provided between the water outlet of the oil separator box and the water inlet of the scum box, the water inlet of the scum box is provided at the front end of the scum box body, the scum scraping mechanism is provided above the scum box body, the mixing tank body is provided below the scum box body, the scum collecting box is provided on both sides of the scum box body, a stirring mechanism, an ultrasonic generator, and a stirring blade mechanism are provided inside the mixing tank body, the stirring blade mechanism is provided with six groups as a whole and is provided in the middle of the stirring mechanism, a sewage pipe I is provided at the lower part of the mixing tank body, a mixing tank base is provided at the lower part of the mixing tank body, and a purified water outlet is provided at the rear end below the mixing tank body.

[0008] The oil removal mechanism includes an oil scraper plate, a slide groove I, an oil separator plate, an oil collecting trough, a motor mounting plate I, a screw, a motor I, and an oil drain pipe. The oil scraper plate is arranged between the two slide grooves I, and the oil scraper plate is slidably connected to the slide groove I. An oil separator plate is arranged below the oil scraper plate, oil collecting troughs are arranged at both ends of the oil separator plate, and an oil drain pipe is arranged below the oil collecting trough; the motor mounting plate I is arranged on the oil separator box body, and the motor I is installed on the motor mounting plate I; the motor I controls the rotation of the screw through the gear chain, thereby controlling the oil scraper plate to reciprocate along the direction of the screw.

[0009] The dirt removal mechanism includes a scraper plate, an H-shaped plate, a limit column, a positioning plate, a motor mounting plate II, and a motor II. The motor mounting plate II is arranged outside the oil separator box body, the motor II is installed on the motor mounting plate I, the positioning plate is arranged between two chains, the positioning plate is provided with a limit column and a scraper plate, the scraper plate uses a bending plate, the front end of the scraper plate is connected to the middle of the H-shaped plate, and the scraper plate and the H-shaped plate are rotatably connected through a pin shaft; the motor II controls the chain to rotate through a gear, and the chain drives the positioning plate to move; when the positioning plate is moved, the motor II controls the chain to rotate through a gear, and the chain drives the positioning plate to move; when the positioning plate is moved, the motor II controls the chain to rotate through a gear, and the chain drives the positioning plate to move; when the positioning plate is moved, the motor II controls the chain to rotate through a gear, and the chain drives the positioning plate to move; when the positioning plate is moved, the motor II controls the chain to rotate through a gear, and the chain drives the positioning plate to rotate ... When the plate is below the chain, the front end of the limiting column supports the scraper plate, so that the front end of the scraper plate is perpendicular to the bottom of the oil separator, and the scraper plate drives the H-shaped plate to make the two ends of the H-shaped plate fit with the bottom of the oil separator. The H-shaped plate reduces sliding friction while ensuring the cleaning of the bottom sediment, and can efficiently clean the sediment; when the positioning plate is above the chain, the scraper plate falls down due to its own gravity and fits the chain. At the same time, the H-shaped plate is flat due to its own gravity, which can reduce the stirring in the box when cleaning the bottom sediment and reduce the resistance during transmission.

[0010] The sludge dewatering mechanism includes a sewage pipe II, a sludge pump, a sewage barrel, a filtrate barrel, a variable-pitch auger, a motor III, and a pump. The sewage pipe II is arranged in a groove at the bottom of the oil separator box body. The filtrate barrel and the sewage pipe II are connected by a sludge pump, and one end of the filtrate barrel is arranged on the side of the oil separator box body; the motor III is arranged at one end of the variable-pitch auger, and the variable-pitch auger, the filtrate barrel, and the sewage barrel are sequentially connected from the inside to the outside. A filtrate collecting box is provided under the sewage barrel, and a dry sludge collecting box is provided at the open end of the sewage barrel; the filtrate collecting box is connected to the wastewater inlet by a pump.

[0011] The stirring mechanism comprises stirring blades I, stirring blades II, a main shaft I, bevel gears I, bevel gears II, a rack positioning plate, a rack, a gear I, a connecting rod I, a transmission wheel, a transmission belt I, an output pulley, a motor IV, and a main shaft II; the motor IV is arranged below the stirring tank base, the motor IV is connected to the output pulley, the transmission wheel and the output pulley are connected through a transmission belt I, a connecting rod I is arranged in the middle of the transmission wheel, one end of the connecting rod I is connected to the transmission wheel and the other end is connected to the rack, the rack and the gear I are arranged in the rack positioning plate, the rack positioning plate is rotatably connected to the main shaft I, the rack is meshed with the gear I, the gear I is arranged at one end of the main shaft I, the bevel gear I is arranged at the other end of the main shaft I, the bevel gear I and the bevel gear II are provided with two groups and mesh with each other, and the stirring There are two groups of blades I and stirring blades II, one group is arranged above the main shaft II, and the other group is arranged below the main shaft II. Two groups of bevel gears I are respectively connected to the stirring blades I and stirring blades II below; a slide groove II is arranged on the stirring blades I and stirring blades II; the motor IV controls the rotation of the transmission wheel through the output pulley and the transmission belt I, the transmission wheel drives the connecting rod I to rotate, the connecting rod I drives the rack to reciprocate, the connecting rod I drives the gear I to rotate counterclockwise when the connecting rod I is pushed forward, and drives the gear I to rotate clockwise when the connecting rod I is pulled backward, so that the stirring blade I periodically rotates forward and reverses; the two groups of bevel gears I are meshed with the bevel gear II, so that the upper and lower bevel gears I rotate in opposite directions, so that the stirring blades I and the stirring blades II rotate in opposite directions.

[0012] The scraping mechanism comprises a fixed frame, a motor V, a motor mounting plate IV, a connecting rod II, a connecting rod III, a slide rail, a scraper positioning frame, a motor mounting plate V, a motor VI, a transmission chain III, a gear IV, a gear fixing plate, and a scraper plate; the fixed frame is arranged on one side of the scum box body, the slide rail is arranged on the side of the scum box body, two groups are provided and symmetrically distributed, the motor mounting plate IV is arranged on the fixed frame, the motor V is arranged on the motor mounting plate IV, the motor V output end connecting rod II, the connecting rod II is connected to the connecting rod III, the connecting rod III is connected to the scraper positioning frame, the scraper positioning frame is arranged above the slide rail and is slidably connected to the slide rail; the scraper plate is arranged It is arranged inside the scraper positioning frame, and the scraper plate is provided with dense long groove-shaped overflow holes; the motor mounting plate V is arranged above the scraper positioning plate, the motor VI is installed on the motor mounting plate V, and there are two groups of gears IV, one group is arranged at the output end of the motor V, and the other group is arranged on the gear fixing plate, the gear fixing plate is arranged on the lower side of one end of the scraper positioning frame, the transmission chain III passes through the protruding slider part of the scraper plate and meshes with the gear IV; the motor V drives the scraper positioning frame to make reciprocating linear motion along the direction of the slide rail through the crank slider structure composed of the connecting rod II and the connecting rod III; the motor VI controls the lifting and lowering of the scraper plate through the transmission chain III and the gear IV.

[0013] The stirring blade mechanism comprises a positioning rod, a spring I, a sliding shaft, a limiting ring, a stirring blade III, a connecting rod, a key, a spring II, a rotating shaft, and a passive rotating shaft; the positioning rod, the spring I, and the sliding shaft are provided with two groups arranged at the upper and lower ends of the stirring blade mechanism, the sliding shaft is slidably connected to the positioning rod, the spring I is sleeved on the positioning rod and arranged between the sliding shaft and the positioning rod; the sliding shaft is slidably connected to the rotating shaft, the passive rotating shaft is connected to the rotating shaft through a key, the passive rotating shaft is partially sleeved inside the rotating shaft, and the spring II is sleeved between the passive rotating shaft and the rotating shaft; there are three groups of limiting rings, which are respectively arranged above the rotating shaft, below the rotating shaft, and below the passive rotating shaft; there are sixteen groups of connecting rods and connected to the limiting rings, which are distributed in equal intervals around the limiting ring as the axis, there are four groups of stirring blades III, and the stirring blades III are connected to the limiting rings through the connecting rod; the sliding shaft is arranged in the slide groove II, three groups of positioning rods are arranged on the stirring blade I, and the other three groups of positioning rods are arranged on the stirring blade II.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1) The macromolecular oil separated in the oil separator floats on the oil separator plate and between the oil collecting grooves on both sides. At this time, the motor I is controlled to make the oil scraper plate do reciprocating linear motion along the direction of the lead screw, pushing the macromolecular oil on the oil separator plate into the oil collecting grooves on both sides. The oil scraper plate cooperates with the opening of the oil collecting groove, which reduces the residue when cleaning the oil and improves the cleaning effect. The oil scraper plate can clean the oil during the reciprocating motion process, which greatly improves the work efficiency; the macromolecular oil pushed into the oil collecting groove can be recycled after being discharged through the oil drain pipe;

[0016] 2) Dispersed oil and emulsified oil in oily wastewater are difficult to handle. In order to reduce the formation of dispersed oil and emulsified oil, the oil separator is set to block the floating oil and liquid in the box, reduce the stirring of the liquid in the box by the scraper during the oil scraping process, reduce the formation of dispersed oil and emulsified oil, and improve the efficiency of oil separation and cleaning; Motor II controls the rotation of the chain through gears, and the chain drives the positioning plate to move; when the positioning plate is below the chain, the limit column supports the scraper plate, so that the scraper plate and the bottom of the oil separator are 4 5° angle, the front connection part of the scraper plate is perpendicular to the bottom of the oil separator, the middle part of the H-shaped plate is parallel to the bottom of the oil separator, and the scrapers at both ends of the H-shaped plate are perpendicular to the middle part and fit the bottom of the oil separator, which can efficiently clean the sediment without leaving any dead angle; when the positioning plate is above the chain, the scraper plate falls down due to its own gravity and fits the chain, and the H-shaped plate is flat due to its own gravity, which can reduce the agitation in the box when cleaning the bottom sediment, reduce the resistance during transmission, and reduce the generation of dispersed oil and emulsified oil;

[0017] 3) The sewage pipe II of the sludge dewatering mechanism is set in the groove at the bottom of the oil separator box. After the dirt removal mechanism pushes the sediment into the groove, the sewage containing the sediment is pumped into the filtrate cylinder by the sludge pump. A variable pitch auger is arranged in the filtrate cylinder. The pitch of the variable pitch auger gradually decreases from the back to the front, so that in the process of conveying the sediment forward, the pitch decreases so that the teeth squeeze the sediment, and the water in the sediment is gradually squeezed out and finally transported to the dry sludge collection box; when the variable pitch auger conveys the squeezed sediment, the water in the sediment flows out from the dense small holes arranged on the wall of the filtrate cylinder. In order to prevent the water in the sediment from splashing during the squeezing process, a sewage cylinder is also sleeved on the outside of the filtrate cylinder. The squeezed sewage flows into the filtrate collection box through the vertical circular pipe below the sewage cylinder, and then is pumped back to the wastewater inlet by the pump and re-enters the oil separator for filtration;

[0018] 4) The sewage after preliminary treatment in the oil separator enters the scum tank body from the outlet of the oil separator tank. The lower part of the scum tank body is connected to the stirring tank. After the flocculant is added to the wastewater, the stirring mechanism drives the stirring blade mechanism to start the stirring operation. The motor IV controls the rotation of the transmission wheel through the output pulley and the transmission belt I. The transmission wheel drives the connecting rod I to rotate. The connecting rod I drives the rack to reciprocate. When the connecting rod I is pushed forward, it drives the gear I to rotate counterclockwise. When the connecting rod I is pulled backward, it drives the gear I to rotate clockwise, so that the stirring blade I periodically rotates forward and reverses, fully stirring the water flow in the upper and lower areas of the tank body, and improving the stirring effect; the rotation of the stirring blades I and II drives the stirring blade mechanism. The centrifugal force generated when the stirring mechanism rotates causes the stirring blade mechanism to slide between the positioning rods. The spring I allows the stirring blade mechanism to reset, increasing the stirring range. , which improves the stirring effect; a hub motor is arranged inside the rotating shaft in the stirring blade mechanism so that it can rotate itself, a spring II is arranged between the rotating shaft and the passive rotating shaft and connected by a key, so that the rotating shaft can drive the passive rotating shaft to rotate together during the rotation process, and the limit ring is connected to the stirring blade III through a connecting rod. The stirring blade III also generates centrifugal force during the rotation process. The centrifugal force acts on the spring II through the connecting rod so that the four groups of stirring blades III can be extended and contracted. The stirring mechanism cooperates with the stirring blade mechanism to generate irregular mixed flow between different stirring blade mechanisms, which fully stirs the water flow in the middle area of ​​the tank body, helps to break the stratification and vortex in the water flow, and improves the uniformity and effect of stirring. By increasing the stirring range and introducing irregular mixed flow, the collision and combination between solid particles and flocculants in the sewage can be accelerated, thereby improving the efficiency of sewage treatment;

[0019] 5) The scum produced after flocculation will float on the upper layer of the scum box. Motor V controls the scraper positioning frame to make reciprocating linear motion along the direction of the slide rail through connecting rods II and III. Motor VI can control the lifting of the scraper plate through transmission chain III and gear IV according to the thickness of the scum. Motor V drives the scraper positioning frame to make reciprocating linear motion along the direction of the slide rail through the crank slider structure composed of connecting rods II and III. When the scraper plate makes reciprocating linear motion, the floating scum is pushed into the scum collection boxes on both sides. The reciprocating motion of the scraper plate improves the scum cleaning efficiency; the scraper plate is provided with a long groove-shaped overflow hole, which allows water to pass through to improve the scraping efficiency. Motor VI controls the lifting and lowering of the scraper plate through transmission chain III and gear IV. During the lifting process, the long strip under the scraper positioning frame can remove the scum adhered to the scraper plate, which plays a role in cleaning the scraper plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Attached Figure 1 It is a schematic structural diagram of a purification treatment device for efficiently treating oily wastewater according to the present invention;

[0021] Attached Figure 2 Yes Figure 1 Schematic diagram of the internal structure of the intermediate oil tank;

[0022] Attached Figure 3 Yes Figure 2 Schematic diagram of oil removal mechanism;

[0023] Attached Figure 4 Yes Figure 2 Indication of pollution removal agency Figure 1 ;

[0024] Attached Figure 5 Yes Figure 2 Indication of pollution removal agency Figure 2 ;

[0025] Attached Figure 6 Yes Figure 1 Schematic diagram of medium sludge dewatering mechanism Figure 1 ;

[0026] Attached Figure 7 Yes Figure 1 Schematic diagram of medium sludge dewatering mechanism Figure 2 ;

[0027] Attached Figure 8 Yes Figure 1 Schematic diagram of the structure of the middle scum box and the mixing tank;

[0028] Attached Fig. 9 Yes Figure 8 Schematic diagram of the internal structure of the middle scum box and the mixing tank;

[0029] Attached Fig.10 Yes Fig. 9Schematic diagram of the structure of the stirring mechanism and stirring blade mechanism;

[0030] Attached Fig.11 Yes Fig.10 Schematic diagram of the stirring mechanism;

[0031] Attached Fig.12 Yes Figure 8 Schematic diagram of the middle scraper mechanism;

[0032] Attached Fig.13 Yes Fig.10 Schematic diagram of the stirring blade mechanism;

[0033] In the figure: 11, oil separator box body; 12, oil removal mechanism; 13, dirt removal mechanism; 14, sludge dewatering mechanism; 15, dry sludge collection box; 16, filtrate collection box; 17, scum box box body; 18, mixing tank body; 19, mixing tank base; 20, ultrasonic generator; 21, stirring mechanism; 22, scraping mechanism; 23, stirring blade mechanism; 24, scum collection box; 25, wastewater inlet; 26, oil separator water outlet; 27, valve; 28, scum box water inlet; 29, purified water outlet; 30, sewage pipe Ⅰ; 101, oil scraper; 102, slide Ⅰ; 103, oil separator; 104, oil collecting tank; 105, motor mounting plate Ⅰ; 106, lead screw; 107, motor Ⅰ; 108 , oil discharge pipe; 201, scraper plate; 202, H-type plate; 203, limit column; 204, positioning plate; 205, motor mounting plate II; 206, motor II; 301, sewage pipe II; 302, sludge pump; 303, sewage cylinder; 304, filtrate cylinder; 305, variable pitch auger; 306, motor III; 307, pump; 401, stirring blade I; 402, stirring blade II; 403, main shaft I; 404, bevel gear I; 405, bevel gear II; 406, slide II; 407, rack positioning plate; 408, rack; 409, gear I; 410, connecting rod I; 411, transmission wheel; 412, transmission belt I; 413, output pulley; 414, motor IV; 415, main shaft II; 501, fixed frame; 502, motor V; 503, motor mounting plate IV; 504, gear IV; 505, gear fixing plate; 506, scraper plate; 507, connecting rod II; 508, connecting rod III; 509, slide rail; 510, scraper positioning frame; 511, motor mounting plate V; 512, motor VI; 513, transmission chain III; 601, positioning rod; 602, spring I; 603, sliding shaft; 604, limiting ring; 605, stirring blade III; 606, connecting rod; 607, key; 608, spring II; 609, rotating shaft; 610, passive rotating shaft. DETAILED DESCRIPTION

[0034] To facilitate the understanding of those skilled in the art, Figure 1-13, the technical solution of the present invention is further specifically described.

[0035] A purification device for efficiently treating oily wastewater, comprising an oil separator body 11, an oil removal mechanism 12, a dirt removal mechanism 13, a sludge dewatering mechanism 14, a dry sludge collecting box 15, a filtrate collecting box 16, a scum box body 17, a mixing tank body 18, a mixing tank base 19, an ultrasonic generator 20, a stirring mechanism 21, a slag scraping mechanism 22, a stirring blade mechanism 23, a scum collecting box 24, a wastewater inlet 25, an oil separator water outlet 26, a valve 27, a scum box water inlet 28, a purified water outlet 29, and a sewage pipe Ⅰ 30; the wastewater inlet 25 is located at the front end of the oil separator body 11, the oil removal mechanism 12 and the dirt removal mechanism 13 are arranged inside the oil separator body 11, the oil removal mechanism 12 is located above the inside of the oil separator body 11, and the dirt removal mechanism 13 is located below the inside of the oil separator body 11; The dehydration mechanism 14 is located on the outer side of the oil separator box body 11, and the oil separator box outlet 26 is located at the rear end of the oil separator box body 11; a valve 27 is provided between the oil separator box outlet 26 and the scum box inlet 28, the scum box inlet 28 is provided at the front end of the scum box body 17, the scum scraping mechanism 22 is provided above the scum box body 17, the stirring tank body 18 is provided below the scum box body 17, the scum collecting box 24 is located on both sides of the scum box body 17, the stirring tank body 18 is provided with a stirring mechanism 21, an ultrasonic generator 20, and a stirring blade mechanism 23, the stirring blade mechanism 23 is provided with six groups as a whole and is arranged in the middle of the stirring mechanism 21, a sewage pipe Ⅰ30 is provided at the bottom of the stirring tank body 18, a stirring tank base 19 is provided at the bottom of the stirring tank body 18, and a purified water outlet 29 is provided at the rear end below the stirring tank body 18.

[0036] The oil removal mechanism includes an oil scraper 101, a slide groove Ⅰ102, an oil separator 103, an oil collecting groove 104, a motor mounting plate Ⅰ105, a screw 106, a motor Ⅰ107, and an oil drain pipe 108. The oil scraper 101 is arranged between the two slide grooves Ⅰ102, and the oil scraper 101 is slidably connected to the slide groove Ⅰ102. An oil separator 103 is arranged below the oil scraper 101, and oil collecting grooves 104 are arranged at both ends of the oil separator 103. An oil drain pipe 108 is arranged below the oil collecting groove 104; the motor mounting plate Ⅰ105 is arranged on the oil separator box body 11, and the motor Ⅰ107 is installed on the motor mounting plate Ⅰ105; the motor Ⅰ107 controls the rotation of the screw 106 through the gear chain, thereby controlling the oil scraper 101 to reciprocate along the direction of the screw 106.

[0037] The dirt removal mechanism includes a scraper plate 201, an H-shaped plate 202, a limit column 203, a positioning plate 204, a motor mounting plate II 205, and a motor II 206. The motor mounting plate II 205 is arranged on the outside of the oil separator box body 11, and the motor II 206 is installed on the motor mounting plate II 205. The positioning plate 204 is arranged between two chains. The positioning plate 204 is provided with a limit column 203 and a scraper plate 201. The scraper plate 201 uses a bending plate. The front end of the scraper plate 201 is connected to the middle part of the H-shaped plate 202. The scraper plate 201 and the H-shaped plate 202 are rotatably connected through a pin shaft; the motor II 206 controls the chain rotation through a gear, and the chain Drive the positioning plate 204 to move; when the positioning plate 204 is below the chain, the front end of the limiting column 203 supports the scraper plate 201, so that the front end of the scraper plate 201 is perpendicular to the bottom of the oil separator, and the scraper plate 201 drives the H-type plate 202, so that the two ends of the H-type plate 202 fit with the bottom of the oil separator, and the H-type plate 202 reduces sliding friction while ensuring the cleaning of the bottom sediment, and can efficiently clean the sediment; when the positioning plate 204 is above the chain, the scraper plate 201 falls down due to its own gravity and fits the chain, and at the same time, the H-type plate 202 is flat due to its own gravity, which can reduce the stirring in the box when cleaning the bottom sediment and reduce the resistance during transmission.

[0038] The sludge dewatering mechanism includes a sewage pipe II 301, a sludge pump 302, a sewage barrel 303, a filtrate barrel 304, a variable pitch auger 305, a motor III 306, and a pump 307. The sewage pipe II 301 is arranged in a groove at the bottom of the oil separator box 11. The filtrate barrel 304 is connected to the sewage pipe II 301 through the sludge pump 302. One end of the filtrate barrel 304 is arranged on the side of the oil separator box 11; the motor III 306 is arranged at one end of the variable pitch auger 305, and the variable pitch auger 305, the filtrate barrel 304, and the sewage barrel 303 are sequentially connected from the inside to the outside. A filtrate collecting box 16 is provided below the sewage barrel 303, and a dry sludge collecting box 15 is provided at the open end of the sewage barrel 303; the filtrate collecting box 16 is connected to the wastewater inlet 25 through a pump 307.

[0039] The stirring mechanism includes stirring blades I 401, stirring blades II 402, a main shaft I 403, a bevel gear I 404, a bevel gear II 405, a slide groove II 406, a rack positioning plate 407, a rack 408, a gear I 409, a connecting rod I 410, a transmission wheel 411, a transmission belt I 412, an output pulley 413, a motor IV 414, and a main shaft II 415; the motor IV 414 is arranged below the stirring tank base 19, the motor IV 414 is connected to the output pulley 413, the transmission wheel 411 and the output pulley 413 are connected by the transmission belt I 412, a connecting rod I 410 is arranged in the middle of the transmission wheel 411, one end of the connecting rod I 410 is connected to the transmission wheel 411 and the other end is connected to the rack 408, The rack 408 and the gear I409 are arranged in the rack positioning plate 407, the rack positioning plate 407 is rotatably connected to the main shaft I403, the rack 408 is meshed with the gear I409, the gear I409 is arranged at one end of the main shaft I403, the bevel gear I404 is arranged at the other end of the main shaft I403, the bevel gear I404 and the bevel gear II405 are provided with two groups and mesh with each other, the stirring blade I401 and the stirring blade II402 are provided with two groups, one group is arranged above the main shaft II415, and the other group is arranged below the main shaft II415, the two groups of bevel gears I404 are respectively connected to the stirring blade I401 and the stirring blade II402 below; the stirring blade I401 and the stirring blade II402 are provided with a slide groove II406.

[0040] The scraping mechanism includes a fixed frame 501, a motor V502, a motor mounting plate IV503, a gear IV504, a gear fixing plate 505, a scraping plate 506, a connecting rod II507, a connecting rod III508, a slide rail 509, a scraper positioning frame 510, a motor mounting plate V511, a motor VI512, and a transmission chain III513; the fixed frame 501 is arranged on one side of the scum box body 17, the slide rail 509 is arranged on the side of the scum box body 17, and two groups are provided and symmetrically distributed, the motor mounting plate IV503 is arranged on the fixed frame 501, the motor V502 is installed on the motor mounting plate IV503, the output end of the motor V502 is connected to the connecting rod II507, the connecting rod II507 is connected to the connecting rod III508, the connecting rod III508 is connected to the scraper positioning frame 510, and the scraper positioning frame 510 is arranged above the slide rail 509 and is connected to the slide rail 5 09 sliding connection; the scraper plate 506 is arranged inside the scraper positioning frame 510, and the scraper plate is provided with dense long groove-shaped overflow holes; the motor mounting plate V511 is arranged above the scraper positioning frame 510, and the motor VI512 is installed on the motor mounting plate V511. There are two groups of gears IV504, one group is arranged at the output end of the motor V502, and the other group is arranged on the gear fixing plate 505. The gear fixing plate 505 is arranged on the lower side of one end of the scraper positioning frame 510, and the transmission chain III513 passes through the protruding slider part of the scraper plate 506 and meshes with the gear IV504; the motor V502 drives the scraper positioning frame 510 to make reciprocating linear motion along the direction of the slide rail 509 through the crank slider structure composed of the connecting rod II507 and the connecting rod III508; the motor VI512 controls the lifting and lowering of the scraper plate 506 through the transmission chain III513 and the gear IV504.

[0041] The stirring blade mechanism includes a positioning rod 601, a spring I 602, a sliding shaft 603, a limiting ring 604, a stirring blade III 605, a connecting rod 606, a key 607, a spring II 608, a rotating shaft 609, and a passive rotating shaft 610; the positioning rod 601, the spring I 602, and the sliding shaft 603 are provided with two groups arranged at the upper and lower ends of the stirring blade mechanism, the sliding shaft 603 is slidably connected with the positioning rod 601, the spring I 602 is sleeved on the positioning rod 601 and is arranged between the sliding shaft 603 and the positioning rod 601; the sliding shaft 603 is slidably connected with the rotating shaft 609, the passive rotating shaft 610 is connected with the rotating shaft 609 through the key 607, and the passive rotating shaft 610 is connected with the rotating shaft 609. Part of it is sleeved inside the rotating shaft 609, and the spring II 608 is sleeved between the passive rotating shaft 610 and the rotating shaft 609; there are three groups of limit rings 604, which are respectively arranged above the rotating shaft 609, below the rotating shaft 609, and below the passive rotating shaft 610; there are sixteen groups of connecting rods 606 and they are connected to the limit rings 604, and are distributed in circles with equal intervals around the limit rings 604 as the axis; there are four groups of stirring blades III 605, and the stirring blades III 605 are connected to the limit rings 604 through the connecting rods 606; the sliding shaft 603 is arranged in the slide groove II 406, three groups of positioning rods 601 are arranged on the stirring blade I 401, and the other three groups of positioning rods 601 are arranged on the stirring blade II 402.

[0042] A purification device for efficiently treating oily wastewater, the working process is as follows:

[0043] Oily wastewater enters the oil separator body 11 from the wastewater inlet 25, and the macromolecular oil separated in the oil separator floats on the oil separator plate 103 and between the oil collecting grooves 104 on both sides. At this time, the motor I 107 is controlled to make the oil scraper plate 101 reciprocate linearly along the direction of the screw 106, and the macromolecular oil on the oil separator plate 103 is pushed into the oil collecting grooves 104 on both sides. The oil scraper plate 101 cooperates with the opening of the oil collecting groove 104, which reduces the residue when cleaning the oil and improves the cleaning effect. The oil scraper plate 101 can clean the oil during the reciprocating motion, which greatly improves the work efficiency; the macromolecular oil pushed into the oil collecting groove 104 can be recycled after being discharged through the oil drain pipe 108.

[0044] Dispersed oil and emulsified oil in oily wastewater are difficult to handle. In order to reduce the formation of dispersed oil and emulsified oil, the oil separator 103 is set to block the floating oil and the liquid in the box, reduce the stirring of the liquid in the box by the scraper 101 during the oil scraping process, reduce the formation of dispersed oil and emulsified oil, and improve the efficiency of oil separation and cleaning; the motor II 206 controls the chain to rotate through the gear, and the chain drives the positioning plate 204 to move; when the positioning plate 204 is under the chain, the limit column 203 supports the scraper plate 201, and the front end connection part of the scraper plate 201 is perpendicular to the bottom of the oil separator box. Both ends of the H-shaped plate 202 are in contact with the bottom of the oil separator. The H-shaped plate 202 reduces sliding friction while ensuring the cleaning of the bottom sediment, and can efficiently clean the sediment. When the positioning plate 204 is above the chain, the scraper plate 201 falls down due to its own gravity and fits the chain. At the same time, the H-shaped plate 202 is laid flat due to its own gravity, which can reduce the agitation in the box when cleaning the bottom sediment, reduce the resistance during transmission, and reduce the production of dispersed oil and emulsified oil.

[0045] The sewage pipe II 301 of the sludge dewatering mechanism 14 is arranged in the groove at the bottom of the oil separator box 11. After the dirt removal mechanism 13 pushes the sediment into the groove, the sludge pump 302 pumps the sewage containing the sediment into the filtrate cylinder 304. The filtrate cylinder 304 is provided with a variable pitch auger 305. The pitch of the variable pitch auger 305 gradually decreases from the back to the front, so that in the process of conveying the sediment forward, the pitch decreases so that the teeth squeeze the sediment, so that the water in the sediment is gradually squeezed out, and finally conveyed to the filtrate cylinder 304. It is sent to the dry sludge collection box 15; when the variable-pitch auger 305 transports the squeezed sediment, the water in the sediment flows out from the dense small holes arranged on the wall of the filtrate cylinder 304. In order to prevent the water in the sediment from splashing during the squeezing process, a sewage cylinder 303 is also connected to the outside of the filtrate cylinder 304. The squeezed sewage flows into the filtrate collection box 16 through the vertical circular pipe under the sewage cylinder 303, and is then pumped back to the wastewater inlet 25 by the pump 307 and re-enters the oil separator for filtration.

[0046] The wastewater after the preliminary treatment of the oil separator enters the scum box body 17 from the oil separator water outlet 26. The lower part of the scum box body 17 is connected to the stirring tank body 18. After the flocculant is added to the wastewater, the stirring mechanism 21 drives the stirring blade mechanism 23 to start the stirring operation. The motor IV 414 controls the rotation of the transmission wheel 411 through the output pulley 413 and the transmission belt I 412. The transmission wheel 411 drives the connecting rod I 410 to rotate. The connecting rod I 410 drives the rack 408 to reciprocate. When the connecting rod I 410 moves forward, it drives the gear I 409 to move back and forth. When the connecting rod Ⅰ410 is pulled out backward, it drives the gear Ⅰ409 to rotate clockwise, so that the stirring blade Ⅰ401 rotates forward and reverse periodically; the two sets of bevel gears Ⅰ404 mesh with the bevel gear Ⅱ405, so that the upper and lower bevel gears Ⅰ404 rotate in opposite directions, so that the stirring blade Ⅰ401 rotates in opposite directions to the stirring blade Ⅱ402, so that the stirring blade Ⅰ401 rotates forward and reverse periodically, and the stirring blade Ⅱ402 rotates in opposite directions to the stirring blade Ⅰ401, so that the upper and lower water bodies in the tank are fully stirred. The stirring blade 23 is driven by the rotation of the stirring blade Ⅰ401 and the stirring blade Ⅱ402. The centrifugal force generated when the stirring mechanism 21 rotates causes the stirring blade mechanism 23 to slide between the positioning rods 601. The spring Ⅰ602 allows the stirring blade mechanism 23 to reset, thereby increasing the stirring range and improving the stirring effect. The rotating shaft 609 in the stirring blade mechanism 23 is provided with a hub motor so that it can rotate itself. A spring Ⅱ608 is provided between the rotating shaft 609 and the passive rotating shaft 610 and is connected by a key 607. The rotating shaft 609 can drive the passive rotating shaft 610 to rotate together during the rotation process. The limiting ring 604 is connected to the stirring blade III 605 through the connecting rod 606. The stirring blade III 605 also generates centrifugal force during the rotation process. The centrifugal force acts on the spring II 608 through the connecting rod 606 so that the four groups of stirring blades III 605 can be extended and contracted. The stirring mechanism 21 cooperates with the stirring blade mechanism 23 to generate irregular mixed flow among different stirring blade mechanisms 23, which fully stirs the mixed flow of flocculant and water in the middle area of ​​the tank body.

[0047] The scum produced after flocculation will float on the upper layer of the scum box body 17, and the motor V502 controls the scraper positioning frame 510 to make reciprocating linear motion along the direction of the slide rail 509 through the connecting rod II 507 and the connecting rod III 508. The motor VI 512 can control the lifting and lowering of the scraper plate 506 according to the thickness of the scum through the transmission chain III 513 and the gear IV 504. The motor V502 drives the scraper positioning frame 510 to make reciprocating linear motion along the direction of the slide rail 509 through the crank slider structure composed of the connecting rod II 507 and the connecting rod III 508. When the scraper plate 506 makes reciprocating linear motion, the floating scum is pushed into the scum collecting hoppers on both sides. Box 24, the reciprocating motion of the scraper plate 506 improves the scum cleaning efficiency. The scraper plate 506 is provided with a long groove-shaped overflow hole, which allows water to flow through to improve the scraping efficiency. The motor VI 512 controls the lifting and lowering of the scraper plate 506 through the transmission chain III 513 and the gear IV 504. During the lifting process, the long strip under the scraper positioning frame 510 can remove the scum adhered to the scraper plate 506, which plays a role in cleaning the scraper plate 506. Finally, the treated supernatant flows out through the purified water outlet 29. After the mixing blade mechanism mixes and stirs, the flocculated sediment produced after the flocculation action is discharged from the sewage pipe I 30.

[0048] In summary, the electronic or electrical components including but not limited to motor I, motor II, motor III, motor IV, motor V, motor VI, etc. are components in the prior art, obtained through private customization or purchase, and the electrical connections between the components are conventional circuit connections or electrical connections in the prior art and are not within the scope of protection of the present invention.

[0049] In the description of the present invention, unless otherwise specified, “plurality” means two or more than two; the orientations or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “inside”, “outside”, “front end”, “rear end”, “head” and “tail” are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0050] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

1. A purification device for efficiently treating oily wastewater, comprising an oil separator box, an oil removal mechanism, a dirt removal mechanism, a sludge dehydration mechanism, a dry sludge collection box, a filtrate collection box, a scum box box, a mixing tank body, a mixing tank base, an ultrasonic generator, a stirring mechanism, a scraping mechanism, a stirring blade mechanism, a scum collection box, a wastewater inlet, an oil separator outlet, a valve, a scum box inlet, a purified water outlet, and a sewage pipe I; characterized in that The wastewater inlet is located at the front end of the oil separator body, the oil removal mechanism and the dirt removal mechanism are arranged inside the oil separator body, the oil removal mechanism is located above the inside of the oil separator body, and the dirt removal mechanism is located below the inside of the oil separator body; the sludge dehydration mechanism is located on the outer side of the oil separator body, and the oil separator water outlet is located at the rear end of the oil separator body; a valve is provided between the oil separator water outlet and the scum box water inlet, the scum box water inlet is provided at the front end of the scum box body, the scum scraping mechanism is provided above the scum box body, the mixing tank body is provided below the scum box body, the scum collecting box is located on both sides of the scum box body, the mixing tank body is provided with a mixing mechanism, an ultrasonic generator, and a mixing blade mechanism, the mixing blade mechanism is provided with six groups as a whole and is arranged in the middle of the mixing mechanism, a sewage pipe I is provided at the bottom of the mixing tank body, a mixing tank base is provided at the bottom of the mixing tank body, and a purified water outlet is provided at the rear end below the mixing tank body; The oil removal mechanism includes an oil scraper, a slide groove I, an oil separator, an oil collecting tank, a motor mounting plate I, a lead screw, a motor I, and an oil drain pipe. The oil scraper is arranged between the two slide grooves I, the oil scraper is slidably connected to the slide groove I, an oil separator is arranged below the oil scraper, oil collecting tanks are arranged at both ends of the oil separator, and an oil drain pipe is arranged below the oil collecting tank; the motor mounting plate I is arranged on the oil separator box body, and the motor I is installed on the motor mounting plate I; The dirt removal mechanism includes a scraper plate, an H-shaped plate, a limit column, a positioning plate, a motor mounting plate II, and a motor II. The motor mounting plate II is arranged on the outside of the oil separator box body, the motor II is installed on the motor mounting plate I, the positioning plate is arranged between the two chains, the positioning plate is provided with a limit column and a scraper plate, the scraper plate uses a bending plate, the front end of the scraper plate is connected to the middle of the H-shaped plate, and the scraper plate and the H-shaped plate are rotatably connected through a pin shaft; the motor II controls the rotation of the chain through a gear, and the chain drives the positioning plate to move; when the positioning plate is below the chain, the front end of the limit column supports the scraper plate, so that the front end of the scraper plate is perpendicular to the bottom of the oil separator box, and the scraper plate drives the H-shaped plate, so that the two ends of the H-shaped plate are in contact with the bottom of the oil separator box; when the positioning plate is above the chain, the scraper plate falls down due to its own gravity and fits the chain, and at the same time the H-shaped plate is laid flat due to its own gravity; The scraping mechanism includes a fixed frame, a motor V, a motor mounting plate IV, a connecting rod II, a connecting rod III, a slide rail, a scraper positioning frame, a motor mounting plate V, a motor VI, a transmission chain III, a gear IV, a gear fixing plate, and a scraping plate; the fixed frame is arranged on one side of the scum box body, the slide rail is arranged on the side of the scum box body, two groups are provided and symmetrically distributed, the motor mounting plate IV is arranged on the fixed frame, the motor V is installed on the motor mounting plate IV, the output end of the motor V is connected to the connecting rod II, the connecting rod II is connected to the connecting rod III, the connecting rod III The scraper positioning frame is connected, and the scraper positioning frame is arranged above the slide rail and is slidably connected to the slide rail; the scraper plate is arranged inside the scraper positioning frame, and the scraper plate is provided with dense long groove overflow holes; the motor mounting plate V is arranged above the scraper positioning plate, and the motor VI is installed on the motor mounting plate V. There are two groups of gears IV, one group is arranged at the output end of the motor V, and the other group is arranged on the gear fixing plate. The gear fixing plate is arranged on the lower side of one end of the scraper positioning frame, and the transmission chain III passes through the protruding slider part of the scraper plate and meshes with the gear IV.

2. The purification device for efficiently treating oily wastewater according to claim 1 is characterized in that The sludge dewatering mechanism includes a sewage pipe II, a sludge pump, a sewage barrel, a filtrate barrel, a variable-pitch auger, a motor III, and a pump. The sewage pipe II is arranged in a groove at the bottom of the oil separator box body. The filtrate barrel and the sewage pipe II are connected by a sludge pump, and one end of the filtrate barrel is arranged on the side of the oil separator box body; the motor III is arranged at one end of the variable-pitch auger, and the variable-pitch auger, the filtrate barrel, and the sewage barrel are sequentially connected from the inside to the outside. A filtrate collecting box is provided under the sewage barrel, and a dry sludge collecting box is provided at the open end of the sewage barrel; the filtrate collecting box is connected to the wastewater inlet by a pump.

3. The purification device for efficiently treating oily wastewater according to claim 1 is characterized in that The stirring mechanism comprises stirring blades I, stirring blades II, a main shaft I, a bevel gear I, a bevel gear II, a rack positioning plate, a rack, a gear I, a connecting rod I, a transmission wheel, a transmission belt I, an output pulley, a motor IV, and a main shaft II; the motor IV is arranged below the stirring tank base, the motor IV is connected to the output pulley, the transmission wheel and the output pulley are connected through the transmission belt I, a connecting rod I is arranged in the middle of the transmission wheel, one end of the connecting rod I is connected to the transmission wheel and the other end is connected to the rack, the rack and the gear I are arranged in the rack positioning plate, the rack positioning plate is rotatably connected to the main shaft I, the rack is meshed with the gear I, the gear I is arranged at one end of the main shaft I, the bevel gear I is arranged at the other end of the main shaft I, the bevel gear I and the bevel gear II are provided with two groups and mesh with each other, the stirring blades I and the stirring blades II are provided with two groups, one group is arranged above the main shaft II, and the other group is arranged below the main shaft II, the two groups of bevel gears I are respectively connected to the stirring blades I and the stirring blades II below; the stirring blades I and the stirring blades II are provided with a slide groove II.

4. The purification device for efficiently treating oily wastewater according to claim 1 is characterized in that The stirring blade mechanism comprises a positioning rod, a spring I, a sliding shaft, a limiting ring, a stirring blade III, a connecting rod, a key, a spring II, a rotating shaft, and a passive rotating shaft; the positioning rod, the spring I, and the sliding shaft are provided with two groups arranged at the upper and lower ends of the stirring blade mechanism, the sliding shaft is slidably connected to the positioning rod, the spring I is sleeved on the positioning rod and arranged between the sliding shaft and the positioning rod; the sliding shaft is slidably connected to the rotating shaft, the passive rotating shaft is connected to the rotating shaft through a key, the passive rotating shaft is partially sleeved inside the rotating shaft, and the spring II is sleeved between the passive rotating shaft and the rotating shaft; there are three groups of limiting rings, which are respectively arranged above the rotating shaft, below the rotating shaft, and below the passive rotating shaft; there are sixteen groups of connecting rods and connected to the limiting rings, which are distributed in equal intervals around the limiting ring as the axis, there are four groups of stirring blades III, and the stirring blades III are connected to the limiting rings through the connecting rod; the sliding shaft is arranged in the slide groove II, three groups of positioning rods are arranged on the stirring blade I, and the other three groups of positioning rods are arranged on the stirring blade II.

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