Filtering device for treating oily sewage

Abstract

The invention relates to the technical field of oily sewage filtering, in particular to a filtering device for treating oily sewage, which comprises a filter body, a medicine preparation box is mounted on the top surface of the filter body, two feeding assemblies are mounted on the top surface of the medicine preparation box, each feeding assembly comprises a feeding hopper, an inserting groove is formed in the bottom surface of each feeding hopper, and an inserting block is inserted into each inserting groove. A sliding groove is formed in the middle of the feeding hopper, an adjusting block is slidably connected into the sliding groove, a pushing block is slidably connected into the adjusting block, a first air cylinder is installed on the outer wall of one end of the adjusting block, a piston rod of the first air cylinder is fixedly connected with one end of the pushing block, and a lead screw is in threaded connection with the adjusting block. The metering precision is improved through preset rapid coarse adjustment and weighing, the reagent adding amount is more reliable through combination of the two, the single-time adding volume can be conveniently adjusted according to the change of the water quality of the sewage, and therefore the treatment requirements of oily sewage with different concentrations are met, and the treatment efficiency and stability are improved.

Description

Technical Field

[0001] This invention relates to the field of oily wastewater filtration technology, and in particular to a filtration device for treating oily wastewater. Background Technology

[0002] Oily wastewater originates widely from industrial and residential sectors such as oil extraction, machinery processing, and catering services. If the oil, suspended particles, and other pollutants it contains are discharged directly without effective treatment, it can easily cause serious environmental problems such as eutrophication of water bodies and soil pollution. At the same time, it will also reduce the operating efficiency and service life of subsequent water treatment equipment. Therefore, the purification and treatment of oily wastewater has become an important research direction in the field of environmental protection. In the process of treating oily wastewater, it is necessary to control the dosage of flocculants, demulsifiers, and other agents according to parameters such as the oil content and pollutant concentration of the wastewater. A search revealed a Chinese patent with publication number CN208161111U, which provides an automatic filtration and separation safe and environmentally friendly treatment device for oily wastewater based on liquid level changes. This device uses a filter barrel made of magnetic material in conjunction with an extrusion part to achieve convenient replacement of the filter medium, solving the problems of cumbersome operation and poor sealing when replacing the filter medium in traditional devices. However, during use, it was found that the fixed-volume feed hopper or single weighing sensor is usually used to measure the reagents. The feed volume or weighing range is fixed in advance, making it difficult to flexibly adjust the feed volume according to changes in wastewater quality, which affects the treatment efficiency. When multiple feeds are required, the activity of the reagents and the accuracy of the measurement are affected, which is not conducive to the filtration and treatment of oily wastewater with different concentrations. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a filtration device for treating oily wastewater. It features a preset rapid coarse adjustment and weighing to improve metering accuracy. The combination of these two features makes the dosage of chemicals more reliable and allows for easy adjustment of the single dosing volume according to changes in wastewater quality. This adapts to the treatment needs of oily wastewater with different concentrations, thereby improving treatment efficiency and stability.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a filtration device for treating oily wastewater, comprising a filter body, a dosing tank installed on the top surface of the filter body, and two feeding components installed on the top surface of the dosing tank; The feeding assembly includes a feeding hopper with a slot on its bottom surface. A plug is inserted into the slot, and a weighing platform is mounted on the top surface of the plug. A sliding groove is formed in the middle of the feeding hopper, and an adjusting block is slidably connected inside the sliding groove. A push block is slidably connected inside the adjusting block. A first cylinder is mounted on the outer wall of one end of the adjusting block, and the piston rod of the first cylinder is fixedly connected to one end of the push block. A lead screw is threaded onto the adjusting block. A first servo motor is mounted on the outer wall of the feeding hopper, and the output shaft of the first servo motor is coaxially connected to the lead screw. A bracket is rotatably connected to the lower end of the lead screw, and the bracket is fixedly connected to the outer wall of the feeding hopper. A pretreatment assembly is slidably connected to the inner wall of the feeding hopper.

[0005] Preferably, a fourth cylinder is installed on the outer peripheral wall of the lower end of the feed hopper, and the piston rod of the fourth cylinder is fixedly connected to the insert block. The pretreatment assembly includes a treatment frame, the outer peripheral wall of the treatment frame is slidably connected to the inner wall of the lower end of the feed hopper, a fixing block is fixedly provided on the inner wall of the upper end of the feed hopper, a second cylinder is installed on the fixing block, a C-shaped block is installed on the top surface of the treatment frame, the piston rod of the second cylinder is slidably connected to the fixing block, the bottom surface of the piston rod of the second cylinder is fixedly connected to the top surface of the C-shaped block, and two crushing rollers are rotatably connected to the treatment frame.

[0006] The above technical solution uses the piston rod of the fourth cylinder to drive the insert block to slide along the slot, thereby moving the weighing platform carrying the weighed medicine out and causing the medicine to fall into the dispensing box below.

[0007] Preferably, the outer wall of the processing frame has a groove, the groove wall is equipped with a dual-axis motor, the two output shafts of the dual-axis motor are coaxially connected with worm gears, one end of the crushing roller is sleeved with a worm wheel, the worm gear and the worm wheel are meshed and connected, one end of the processing frame has multiple heat dissipation holes, and the inner wall of the heat dissipation holes is filled with breathable non-woven fabric.

[0008] The above technical solution uses a dual-axis motor whose two output shafts drive a coaxially connected worm to rotate. The worm meshes with a worm wheel sleeved on the outer circumferential wall of one end of the crushing roller, driving the two crushing rollers to rotate. This process crushes the powder falling from the top of the feed hopper, facilitating the weighing and subsequent dissolution of clumps of powder.

[0009] Preferably, the upper end of the dosing box is connected to two inlet pipes with valves, the bottom surface of the dosing box is connected to two outlet pipes with valves, liquid flow meters are installed on the inlet pipes and outlet pipes respectively, and two medicine chambers are opened inside the dosing box respectively, and the inlet pipes and outlet pipes are connected to the corresponding medicine chambers respectively.

[0010] Using the above technical solution, the liquid inlet pipe with a valve at the top of the medicine preparation box is opened, and liquid is injected into the corresponding medicine chamber. The liquid flow meter on the liquid inlet pipe monitors the liquid inlet volume in real time.

[0011] Preferably, the medicine chamber is provided with a mixing assembly, which includes a hollow box. The hollow box is fixed to the inner wall of the dispensing box. The upper and lower ends of the hollow box are respectively rotatably connected to a rotating shaft. Two first stirring rods are fixed on the rotating shafts. The outer peripheral walls of one end of the two rotating shafts are respectively rotatably connected to the dispensing box. The other end of the rotating shaft is fixed with a first bevel gear. A second bevel gear is meshed between the two first bevel gears. The first bevel gear and the second bevel gear are respectively located inside the hollow box.

[0012] Preferably, a rotating rod is fixedly provided in the middle of the second bevel gear, a support block is fixedly provided in the inner wall of the hollow box, the outer peripheral wall of the rotating rod is rotatably connected to the support block, the other ends of the two rotating rods extend through the medicine dispensing box to the outside, a pulley is sleeved on the outer peripheral wall of one end of the rotating rod, the grooves of the two pulleys are driven by belt friction, a second servo motor is installed on the outer wall of the medicine dispensing box, and the output shaft of the second servo motor is coaxially connected to one of the rotating rods.

[0013] Through the above technical solution, the first stirring rod on the rotating shaft rotates with the rotating shaft to mix the agent and liquid in the agent chamber, ensuring uniform concentration of the agent solution and avoiding excessively high or low local concentrations that could affect the wastewater treatment effect.

[0014] Preferably, the top surface of the filter body is open, the lower end of the filter body is provided with a drain pipe with a valve, the side wall of the filter body is connected to a magnetic float level gauge, the filter body is provided with a reaction assembly, the reaction assembly includes a rotating shaft, the upper outer peripheral wall of the rotating shaft is rotatably connected to the dosing tank, the top surface of the dosing tank is equipped with a third servo motor, and the output shaft of the third servo motor is coaxially connected to the rotating shaft.

[0015] Preferably, an impeller is fixedly mounted on the outer peripheral wall of the lower end of the rotating shaft, and two second stirring rods and a third stirring rod are mounted on the upper end of the impeller. The second stirring rods and the third stirring rods are respectively fixedly connected to the rotating shaft, and a positioning block is rotatably connected to the lower end of the rotating shaft. The two ends of the positioning block are respectively fixedly connected to the inner wall of the filter body.

[0016] Through the above technical solution, the impeller at the lower end of the rotating shaft rotates with the shaft to initially stir and mix the sewage and the chemical solution. At the same time, the second and third stirring rods on the rotating shaft rotate synchronously, which further improves the mixing uniformity and promotes the reaction between the oil and the chemical.

[0017] Preferably, a connecting rod is fixedly provided on the outer peripheral wall of the middle part of the rotating shaft, and a scraper is fixedly provided on the outer end of the connecting rod. The outer wall of the scraper is slidably connected to the inner wall of the filter body. The bottom surface of the filter body is inclined. An annular aeration frame is installed at the lower end of the interior of the filter body. Multiple aerators are connected to the upper end of the annular aeration frame. An air inlet pipe with a valve is connected to the filter body. The air inlet pipe is connected to the annular aeration frame. A scraper block is fixedly provided on the rotating shaft. An I-shaped floating block is slidably connected to the middle of the scraper block.

[0018] The above technical solution allows the scraper at the outer end of the connecting rod in the middle of the rotating shaft to slide along the inner wall of the filter body, thus cleaning the pollutants attached to the inner wall in a timely manner.

[0019] Preferably, the filter body is provided with a slag discharge assembly at its upper end. The slag discharge assembly includes a discharge trough, which is fixedly connected to the outer wall of the filter body. The top surface of the filter body is provided with an arc groove, and an arc block is slidably connected to the inner wall of the arc groove. A third cylinder is installed on the outer peripheral wall of the filter body. A moving block is fixedly provided at the lower end of the piston rod of the third cylinder, and the moving block is fixedly connected to the upper outer peripheral wall of the arc block.

[0020] Through the above technical solution, the arc block slides along the inner wall of the arc groove on the top surface of the filter body, and is adjusted to a suitable working height to match the liquid level height on the inner wall of the filter body. With the rotation of the scraper block and the I-shaped floating block, the floating objects are easily pushed to the discharge trough, and the oil sludge is discharged through the discharge trough, which facilitates the filtration and separation of oil sludge.

[0021] The beneficial effects of this invention are as follows: The space between the pusher block and the weighing platform forms a closed volume cavity, facilitating the subsequent quantitative addition of the powder. When the piston rod of the first cylinder extends, the pusher block separates from the inner wall of the feed hopper, releasing the barrier. At this time, the powder is added to the feed hopper and falls onto the top surface of the weighing platform. When the reading on the weighing platform reaches the preset value, the piston rod of the first cylinder retracts, causing the pusher block to reset and re-barrier the falling powder, completing the weighing and metering of the powder. After weighing, the insert block slides along the slot, moving the weighing platform carrying the weighed powder out, allowing the powder to fall into the dosing tank for further processing under gravity. The preset rapid coarse adjustment and improved weighing accuracy, combined with the other features, make the dosage more reliable and allow for adjustment of the single-dosing volume according to changes in wastewater quality, thus adapting to the treatment needs of oily wastewater with different concentrations and improving treatment efficiency and stability. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the medicine dispensing box of the present invention; Figure 3This is a schematic diagram of the internal structure of the feed hopper of the present invention; Figure 4 This is a schematic diagram of the pusher block structure of the present invention; Figure 5 This is a schematic diagram of the preprocessing component structure of the present invention; Figure 6 This is an enlarged schematic diagram of the structure at point A of the present invention; Figure 7 This is a schematic diagram of the first stirring rod structure of the present invention; Figure 8 This is a schematic diagram of the second bevel gear structure of the present invention; Figure 9 This is a schematic diagram of the internal structure of the filter body of the present invention; Figure 10 This is a schematic diagram of the arc block structure of the present invention.

[0023] In the diagram: 100, Filter body; 101, Dosing tank; 102, Inlet pipe; 103, Outlet pipe; 104, Liquid flow meter; 105, Chemical chamber; 106, Drain pipe; 107, Magnetic level gauge; 200, Feeding assembly; 201, Feed hopper; 202, Slot; 203, Insert block; 204, Weighing platform; 205, Slide groove; 206, Adjusting block; 207, Push block; 208, First cylinder; 209, Lead screw; 210, First servo motor; 211, Support; 212, Fourth cylinder; 300, Pretreatment assembly; 301, Treatment frame; 302, Fixing block; 303, Second cylinder; 304, C-block; 305, Groove; 306, Dual-axis motor; 307, Worm gear; 308, Worm wheel; 309, Heat dissipation hole; 310, Crushing roller. ; 400. Mixing assembly; 401. Hollow box; 402. Rotating shaft; 403. First stirring rod; 404. First bevel gear; 405. Second bevel gear; 406. Rotating rod; 407. Pulley; 408. Belt; 409. Second servo motor; 410. Support block; 500. Reaction assembly; 501. Rotating shaft; 502. Third servo motor; 503. Impeller; 504. Second stirring rod; 505. Third stirring rod; 506. Positioning block; 507. Connecting rod; 508. Scraper; 509. Annular aerator; 510. Aerator; 511. Air inlet pipe; 512. Scraper block; 513. I-shaped floating block; 600. Slag discharge assembly; 601. Discharge chute; 602. Arc groove; 603. Arc block; 604. Third cylinder; 605. Moving block. Detailed Implementation

[0024] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0025] like Figures 1-10As shown, this embodiment provides a filtration device for treating oily wastewater, including a filter body 100, a dosing tank 101 installed on the top surface of the filter body 100, and two feeding components 200 installed on the top surface of the dosing tank 101. The feeding assembly 200 includes a feeding hopper 201. A slot 202 is provided on the bottom surface of the feeding hopper 201. An insert block 203 is inserted into the slot 202. A weighing platform 204 is installed on the top surface of the insert block 203. A sliding groove 205 is provided in the middle of the feeding hopper 201. An adjusting block 206 is slidably connected inside the sliding groove 205. A push block 207 is slidably connected inside the adjusting block 206. A first cylinder 208 is installed on the outer wall of one end of the adjusting block 206. The piston rod of the first cylinder 208 is fixedly connected to one end of the push block 207. A lead screw 209 is threadedly connected to the adjusting block 206. A first servo motor 210 is installed on the outer wall of the feeding hopper 201. The output shaft of the first servo motor 210 is coaxially connected to the lead screw 209. A bracket 211 is rotatably connected to the lower end of the lead screw 209. The bracket 211 is fixedly connected to the outer wall of the feeding hopper 201. A pretreatment assembly 300 is slidably connected to the inner wall of the feeding hopper 201.

[0026] A fourth cylinder 212 is installed on the lower outer peripheral wall of the feed hopper 201. The piston rod of the fourth cylinder 212 is fixedly connected to the insert block 203. The pretreatment component 300 includes a treatment frame 301. The outer peripheral wall of the treatment frame 301 is slidably connected to the lower inner wall of the feed hopper 201. A fixing block 302 is fixedly provided on the upper inner wall of the feed hopper 201. A second cylinder 303 is installed on the fixing block 302. A C-shaped block 304 is installed on the top surface of the treatment frame 301. The piston rod of the second cylinder 303 is slidably connected to the fixing block 302. The bottom surface of the piston rod of the second cylinder 303 is fixedly connected to the top surface of the C-shaped block 304. Two crushing rollers 310 are rotatably connected to the treatment frame 301. The piston rod of the fourth cylinder 212 drives the insert block 203 to slide along the slot 202, thereby moving the weighing platform 204 carrying the weighed medicine out, so that the medicine falls into the dispensing tank 101 below.

[0027] The outer wall of the processing frame 301 has a groove 305. A dual-axis motor 306 is installed on the groove wall of the groove 305. Worms 307 are coaxially connected to the two output shafts of the dual-axis motor 306. A worm wheel 308 is sleeved on the outer peripheral wall of one end of the crushing roller 310. The worm 307 and the worm wheel 308 are meshed and connected. Multiple heat dissipation holes 309 are opened at one end of the processing frame 301. The inner wall of the heat dissipation holes 309 is filled with breathable non-woven fabric. The two output shafts of the dual-axis motor 306 drive the coaxially connected worm 307 to rotate. The worm 307 meshes with the worm wheel 308 sleeved on the outer peripheral wall of one end of the crushing roller 310, driving the two crushing rollers 310 to rotate. This crushes the powder falling from the upper end of the feed hopper 201, and crushes clumps of powder for easy weighing and subsequent dissolution.

[0028] The upper end of the dosing tank 101 is connected to two inlet pipes 102 with valves, and the bottom surface of the dosing tank 101 is connected to two outlet pipes 103 with valves. Liquid flow meters 104 are installed on the inlet pipes 102 and outlet pipes 103 respectively. There are two medicine chambers 105 inside the dosing tank 101. The inlet pipes 102 and outlet pipes 103 are connected to the corresponding medicine chambers 105 respectively. When the inlet pipes 102 with valves at the upper end of the dosing tank 101 are opened, liquid is injected into the corresponding medicine chambers 105. The liquid flow meters 104 on the inlet pipes 102 monitor the liquid inflow in real time.

[0029] The medicine chamber 105 is equipped with a mixing assembly 400, which includes a hollow box 401. The hollow box 401 is fixed to the inner wall of the medicine dispensing tank 101. Rotary shafts 402 are rotatably connected to the upper and lower ends of the hollow box 401, respectively. Two first stirring rods 403 are fixed on the rotating shafts 402. The outer peripheral walls of one end of each of the two rotating shafts 402 are rotatably connected to the medicine dispensing tank 101. A first bevel gear 404 is fixed to the other end of the rotating shafts 402. A second bevel gear 405 meshes between the two first bevel gears 404. The first bevel gears 404 and 405 are located inside the hollow box 401. A rotating rod 406 is fixed to the middle of the second bevel gear 405. A support block 410 is fixedly installed on the inner wall of the 01. The outer peripheral wall of the rotating rod 406 is rotatably connected to the support block 410. The other ends of the two rotating rods 406 extend through the dosing tank 101 to the outside. A pulley 407 is sleeved on the outer peripheral wall of one end of the rotating rod 406. The grooves of the two pulleys 407 are driven by friction through the belt 408. A second servo motor 409 is installed on the outer wall of the dosing tank 101. The output shaft of the second servo motor 409 is coaxially connected to one of the rotating rods 406. The first stirring rod 403 on the rotating shaft 402 rotates with the rotating shaft 402 to mix the medicine and liquid in the medicine chamber 105, ensuring uniform concentration of the medicine and avoiding excessively high or low local concentrations that may affect the sewage treatment effect.

[0030] The top surface of the filter body 100 is open, and a drain pipe 106 with a valve is provided at the lower end of the filter body 100. A magnetic level gauge 107 is connected to the side wall of the filter body 100. A reaction assembly 500 is provided inside the filter body 100. The reaction assembly 500 includes a rotating shaft 501. The upper outer peripheral wall of the rotating shaft 501 is rotatably connected to the dosing tank 101. A third servo motor 502 is installed on the top surface of the dosing tank 101. The output shaft of the third servo motor 502 is coaxially connected to the rotating shaft 501. An impeller 503 is fixed on the lower outer peripheral wall of the rotating shaft 501. 3. Two second stirring rods 504 and a third stirring rod 505 are installed at the upper end. The second stirring rods 504 and the third stirring rod 505 are fixedly connected to the rotating shaft 501. The lower end of the rotating shaft 501 is rotatably connected to a positioning block 506. The two ends of the positioning block 506 are fixedly connected to the inner wall of the filter body 100. The impeller 503 at the lower end of the rotating shaft 501 rotates with the shaft to initially stir and mix the sewage and the chemical solution. At the same time, the second stirring rods 504 and the third stirring rod 505 on the rotating shaft 501 rotate synchronously, which further improves the mixing uniformity and promotes the reaction between the oil and the chemical.

[0031] A connecting rod 507 is fixedly mounted on the outer peripheral wall of the middle part of the rotating shaft 501. A scraper 508 is fixedly mounted on the outer end of the connecting rod 507. The outer wall of the scraper 508 is slidably connected to the inner wall of the filter body 100. The bottom surface of the filter body 100 is inclined. An annular aeration frame 509 is installed at the lower end of the filter body 100. Multiple aerators 510 are connected to the upper end of the annular aeration frame 509. An air inlet pipe 511 with a valve is connected to the filter body 100. The air inlet pipe 511 is connected to the annular aeration frame 509. A scraper block 512 is fixedly mounted on the rotating shaft 501. An I-shaped floating block 513 is slidably connected to the middle of the scraper block 512. The scraper 508 at the outer end of the connecting rod 507 in the middle of the rotating shaft 501 slides along the inner wall of the filter body 100 to clean the pollutants attached to the inner wall in a timely manner.

[0032] The filter body 100 is equipped with a slag discharge assembly 600 at its upper end. The slag discharge assembly 600 includes a discharge trough 601, which is fixedly connected to the outer wall of the filter body 100. The top surface of the filter body 100 is provided with an arc groove 602, and an arc block 603 is slidably connected to the inner wall of the arc groove 602. A third cylinder 604 is installed on the outer peripheral wall of the filter body 100. A moving block 605 is fixedly provided at the lower end of the piston rod of the third cylinder 604, and the moving block 605 is fixedly connected to the upper outer peripheral wall of the arc block 603. The arc block 603 slides along the inner wall of the arc groove 602 on the top surface of the filter body 100 and is adjusted to a suitable working height that matches the liquid level height on the inner wall of the filter body 100. With the rotation of the scraper block 512 and the I-shaped float block 513, the floating objects are easily pushed to the discharge trough 601. The slag discharge of oil is completed through the discharge trough 601, which facilitates the filtration and separation of oil.

[0033] Before filtering oily wastewater, if the volume of the agent added at one time needs to be adjusted according to the concentration and flow rate of the oily wastewater to be treated, the output shaft of the first servo motor 210 drives the lead screw 209 to rotate. The rotation of the lead screw 209 drives the adjusting block 206, which is threaded to it, to move up and down along the slide 205, adjusting the vertical distance between the push block 207 and the weighing platform 204, thus realizing the preset feeding volume. After the volume is adjusted to a suitable size, the push block 207 abuts against the inner wall of the feeding hopper 201 to complete the separation, so that the space between the push block 207 and the weighing platform 204 forms a closed volume cavity, which facilitates the subsequent quantitative addition of the powder. When the piston rod of the first cylinder 208 extends, the push block 207 separates from the inner wall of the feed hopper 201, releasing the isolation. At this time, the powder is put into the feed hopper 201, and the powder will fall onto the top surface of the weighing platform 204. When the reading of the weighing platform 204 reaches the preset value, the piston rod of the first cylinder 208 retracts, driving the push block 207 to reset, re-isolating the falling agent, and completing the weighing and metering of the agent. After weighing, the insert block 203 slides along the slot 202, moving the weighing platform 204 carrying the weighed agent out, so that the agent falls into the dosing tank 101 under the action of gravity for further processing. The preset rapid coarse adjustment and the weighing improve the metering accuracy. The combination of the two makes the agent dosage more reliable, and it is convenient to adjust the volume of a single addition according to the changes in the wastewater quality, thereby adapting to the treatment needs of oily wastewater of different concentrations and improving the treatment efficiency and stability. After the medicine is weighed, the piston rod of the fourth cylinder 212 drives the insert block 203 to slide along the slot 202, thereby moving the weighing platform 204 carrying the weighed medicine out, so that the medicine falls into the dispensing tank 101 below; when the medicine powder is put into the feed hopper 201 by external equipment, the piston rod of the second cylinder 303 pushes the C-shaped block 304 and the processing frame 301 to move synchronously, so that the outer wall of the processing frame 301 slides with the inner wall of the feed hopper 201. After sliding to a suitable working height, the two output shafts of the dual-shaft motor 306 drive the coaxially connected worm gear 307 to rotate. The worm gear 307 meshes with the worm wheel 308 sleeved on the outer peripheral wall of one end of the crushing roller 310, driving the two crushing rollers 310 to rotate, crushing the medicine powder falling into the upper end of the feed hopper 201, crushing the agglomerated medicine powder for weighing and subsequent dissolution and use; During the processing, the breathable non-woven fabric filling the inner wall of the heat dissipation hole 309 at one end of the processing frame 301 ensures air circulation and heat dissipation while reducing the amount of powder entering the groove 305; when the processing frame 301 slides along the inner wall of the feed hopper 201, it is convenient to remove the powder adhering to the inner wall of the feed hopper 201, reducing the occurrence of blockage. After weighing, the powdered medicine falls into the dispensing tank 101. According to the dissolution requirements of the medicine, the liquid inlet pipe 102 with a valve at the top of the dispensing tank 101 is opened to inject liquid into the corresponding medicine chamber 105. The liquid flow meter 104 on the liquid inlet pipe 102 monitors the liquid inlet volume in real time. After the liquid is injected, the output shaft of the second servo motor 409 on the outer wall of the dispensing tank 101 drives the rotating rod 406 connected to it to rotate. The outer peripheral wall of the rotating rod 406 drives another rotating rod 406 to rotate synchronously through the friction transmission between the pulley 407 and the belt 408. The middle part of the rotating rod 406 is rotatably engaged with the support block 410 on the inner wall of the hollow box 401. The second bevel gear 405 at one end of the rotating rod 406 meshes with the first bevel gear 404 at the other end of the rotating shaft 402, driving the rotating shafts 402 at both ends of the hollow box 401 to rotate. The first stirring rod 403 on the rotating shaft 402 rotates with the rotating shaft 402, mixing the agent and liquid in the agent chamber 105 to ensure uniform concentration of the agent solution and avoid local concentrations that are too high or too low, which would affect the sewage treatment effect. After mixing, the outlet pipe 103 with a valve is opened, and the liquid flow meter 104 on the outlet pipe 103 monitors the liquid flow rate, delivering the mixed agent solution into the filter body 100. The filter body 100 has an opening on its top surface to receive the chemical solution and the oily wastewater to be treated. The output shaft of the third servo motor 502 drives the rotating shaft 501 to rotate. The impeller 503 at the lower end of the rotating shaft 501 rotates with the shaft to initially stir and mix the wastewater and the chemical solution. At the same time, the second stirring rod 504 and the third stirring rod 505 on the rotating shaft 501 rotate synchronously, which further improves the mixing uniformity and promotes the reaction between the oil and the chemical. To enhance the reaction effect, external air is pumped through the air inlet pipe 511 to the annular aeration frame 509, and then microbubbles are released through multiple aerators 510 to increase the contact area between wastewater, chemicals, and air. The scraper 508 at the outer end of the connecting rod 507 in the middle of the rotating shaft 501 slides along the inner wall of the filter body 100 to clean the contaminants attached to the inner wall in a timely manner, such as sludge and flocs. The scraper block 512 on the rotating shaft 501 rotates with the shaft, and the I-shaped floating block 513 slidably connected in the middle can slide adaptively with the liquid level to help clean the oil or flocs floating on the liquid surface; the internal liquid level is monitored in real time by the magnetic float level gauge 107 to reduce overflow when the liquid level is too high or idling when the liquid level is too low; the drain pipe 106 with a valve at the lower end of the filter body 100 makes it convenient to open it periodically to discharge the impurities deposited at the bottom; When the slag discharge assembly 600 is working, the piston rod of the third cylinder 604 drives the moving block 605 to move. The moving block 605 is fixedly connected to the outer peripheral wall of the upper end of the arc block 603, driving the arc block 603 to slide along the inner wall of the arc groove 602 on the top surface of the filter body 100. It is adjusted to a suitable working height that matches the liquid level height on the inner wall of the filter body 100. With the rotation of the scraper block 512 and the I-shaped float block 513, the floating objects are easily pushed to the discharge trough 601. The discharge trough 601 completes the slag discharge of oil, facilitating the filtration and separation of oil.

[0034] Working principle: Before filtering oily wastewater, if the volume of the agent added at one time needs to be adjusted according to the concentration and flow rate of the oily wastewater, the output shaft of the first servo motor 210 drives the lead screw 209 to rotate. The rotation of the lead screw 209 drives the adjusting block 206, which is threaded to it, to move up and down along the slide 205, adjusting the vertical distance between the push block 207 and the weighing platform 204, thus presetting the feed volume. After the volume is adjusted to a suitable size, the push block 207 abuts against the inner wall of the feed hopper 201 to complete the separation, so that the space between the push block 207 and the weighing platform 204 forms a closed volume cavity, which facilitates the subsequent quantitative addition of the powder. When the piston rod of the first cylinder 208 extends, the push block 207 separates from the inner wall of the feed hopper 201, releasing the barrier. At this time, the powder is put into the feed hopper 201, and the powder falls onto the top surface of the weighing platform 204. When the reading of the weighing platform 204 reaches the preset value, the piston rod of the first cylinder 208 retracts, driving the push block 207 to reset, re-isolating the falling agent, and completing the weighing and metering of the agent. After weighing, the insert block 203 slides along the slot 202, moving the weighing platform 204 carrying the weighed agent out, so that the agent falls into the dosing tank 101 under the action of gravity for further processing. The preset rapid coarse adjustment and the weighing improve the metering accuracy. The combination of the two makes the agent dosage more reliable, and it is convenient to adjust the volume of a single addition according to the changes in the wastewater quality, thereby adapting to the treatment needs of oily wastewater of different concentrations and improving treatment efficiency and stability.

[0035] After the medicine is weighed, the piston rod of the fourth cylinder 212 drives the insert block 203 to slide along the slot 202, thereby moving the weighing platform 204 carrying the weighed medicine out, so that the medicine falls into the dispensing tank 101 below; when the medicine powder is put into the feed hopper 201 by external equipment, the piston rod of the second cylinder 303 pushes the C-shaped block 304 and the processing frame 301 to move synchronously, so that the outer wall of the processing frame 301 slides with the inner wall of the feed hopper 201. After sliding to a suitable working height, the two output shafts of the dual-shaft motor 306 drive the coaxially connected worm gear 307 to rotate. The worm gear 307 meshes with the worm wheel 308 sleeved on the outer peripheral wall of one end of the crushing roller 310, driving the two crushing rollers 310 to rotate, crushing the medicine powder falling into the upper end of the feed hopper 201, crushing the agglomerated medicine powder for weighing and subsequent dissolution and use; During the processing, the breathable non-woven fabric filling the inner wall of the heat dissipation hole 309 at one end of the processing frame 301 ensures air circulation and heat dissipation while reducing the amount of powder entering the groove 305; when the processing frame 301 slides along the inner wall of the feed hopper 201, it is convenient to remove the powder adhering to the inner wall of the feed hopper 201, reducing the occurrence of blockage.

[0036] After weighing, the powdered medicine falls into the dispensing tank 101. According to the dissolution requirements of the medicine, the liquid inlet pipe 102 with a valve at the top of the dispensing tank 101 is opened to inject liquid into the corresponding medicine chamber 105. The liquid flow meter 104 on the liquid inlet pipe 102 monitors the liquid inlet volume in real time. After the liquid is injected, the output shaft of the second servo motor 409 on the outer wall of the dispensing tank 101 drives the rotating rod 406 connected to it to rotate. The outer peripheral wall of the rotating rod 406 drives another rotating rod 406 to rotate synchronously through the friction transmission between the pulley 407 and the belt 408. The middle part of the rotating rod 406 is rotatably engaged with the support block 410 on the inner wall of the hollow box 401. The second bevel gear 405 at one end of the rotating rod 406 meshes with the first bevel gear 404 at the other end of the rotating shaft 402, driving the rotating shafts 402 at both ends of the hollow box 401 to rotate. The first stirring rod 403 on the rotating shaft 402 rotates with the rotating shaft 402, mixing the agent and liquid in the agent chamber 105 to ensure uniform concentration of the agent solution and avoid local concentrations that are too high or too low, which would affect the sewage treatment effect. After mixing, the outlet pipe 103 with a valve is opened, and the liquid flow meter 104 on the outlet pipe 103 monitors the liquid flow rate, delivering the mixed agent solution into the filter body 100.

[0037] The filter body 100 has an opening on its top surface to receive the chemical solution and the oily wastewater to be treated. The output shaft of the third servo motor 502 drives the rotating shaft 501 to rotate. The impeller 503 at the lower end of the rotating shaft 501 rotates with the shaft to initially stir and mix the wastewater and the chemical solution. At the same time, the second stirring rod 504 and the third stirring rod 505 on the rotating shaft 501 rotate synchronously, which further improves the mixing uniformity and promotes the reaction between the oil and the chemical. To enhance the reaction effect, external air is pumped through the air inlet pipe 511 to the annular aeration frame 509, and then microbubbles are released through multiple aerators 510 to increase the contact area between wastewater, chemicals, and air. The scraper 508 at the outer end of the connecting rod 507 in the middle of the rotating shaft 501 slides along the inner wall of the filter body 100 to clean the contaminants attached to the inner wall in a timely manner, such as sludge and flocs. The scraper block 512 on the rotating shaft 501 rotates with the shaft, and the I-shaped floating block 513 slidably connected in the middle can slide adaptively with the liquid level to help clean the oil or flocs floating on the liquid surface; the internal liquid level is monitored in real time by the magnetic float level gauge 107 to reduce overflow when the liquid level is too high or idling when the liquid level is too low; the drain pipe 106 with a valve at the lower end of the filter body 100 makes it convenient to open it periodically to discharge the impurities deposited at the bottom; When the slag discharge assembly 600 is working, the piston rod of the third cylinder 604 drives the moving block 605 to move. The moving block 605 is fixedly connected to the outer peripheral wall of the upper end of the arc block 603, driving the arc block 603 to slide along the inner wall of the arc groove 602 on the top surface of the filter body 100. It is adjusted to a suitable working height that matches the liquid level height on the inner wall of the filter body 100. With the rotation of the scraper block 512 and the I-shaped float block 513, the floating objects are easily pushed to the discharge trough 601. The discharge trough 601 completes the slag discharge of oil, facilitating the filtration and separation of oil.

[0038] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A filtration device for treating oily wastewater, characterized in that, include: A filter body (100) is provided with a dosing tank (101) on its top surface, and two feeding assemblies (200) are provided on the top surface of the dosing tank (101). The feeding assembly (200) includes a feeding hopper (201), a slot (202) is provided on the bottom surface of the feeding hopper (201), a plug (203) is inserted into the slot (202), a weighing platform (204) is installed on the top surface of the plug (203), a sliding groove (205) is provided in the middle of the feeding hopper (201), an adjusting block (206) is slidably connected inside the sliding groove (205), a push block (207) is slidably connected inside the adjusting block (206), and a first cylinder (208) is installed on the outer wall of one end of the adjusting block (206). The piston rod of the first cylinder (208) is fixedly connected to one end of the push block (207). The adjusting block (206) is threaded with a lead screw (209). The outer wall of the feed hopper (201) is equipped with a first servo motor (210). The output shaft of the first servo motor (210) is coaxially connected to the lead screw (209). The lower end of the lead screw (209) is rotatably connected to a bracket (211). The bracket (211) is fixedly connected to the outer wall of the feed hopper (201). The inner wall of the feed hopper (201) is slidably connected to a pretreatment component (300).

2. The filtration device for treating oily wastewater as described in claim 1, characterized in that: A fourth cylinder (212) is installed on the lower outer peripheral wall of the feed hopper (201). The piston rod of the fourth cylinder (212) is fixedly connected to the insert block (203). The pretreatment component (300) includes a treatment frame (301). The outer peripheral wall of the treatment frame (301) is slidably connected to the lower inner wall of the feed hopper (201). A fixing block (302) is fixedly provided on the upper inner wall of the feed hopper (201). A second cylinder (303) is installed on the fixing block (302). A C-shaped block (304) is installed on the top surface of the treatment frame (301). The piston rod of the second cylinder (303) is slidably connected to the fixing block (302). The bottom surface of the piston rod of the second cylinder (303) is fixedly connected to the top surface of the C-shaped block (304). Two crushing rollers (310) are rotatably connected to the treatment frame (301).

3. The filtration device for treating oily wastewater as described in claim 2, characterized in that: The outer wall of the processing frame (301) is provided with a groove (305), and a dual-axis motor (306) is installed on the groove wall of the groove (305). The two output shafts of the dual-axis motor (306) are respectively coaxially connected with worm gears (307). A worm wheel (308) is sleeved on the outer peripheral wall of one end of the crushing roller (310). The worm gear (307) and the worm wheel (308) are meshed and connected. A plurality of heat dissipation holes (309) are provided at one end of the processing frame (301), and the inner wall of the heat dissipation holes (309) is filled with breathable non-woven fabric.

4. The filtration device for treating oily wastewater as described in claim 3, characterized in that: The upper end of the medicine preparation box (101) is connected to two inlet pipes (102) with valves, and the bottom surface of the medicine preparation box (101) is connected to two outlet pipes (103) with valves. Liquid flow meters (104) are installed on the inlet pipes (102) and outlet pipes (103) respectively. Two medicine chambers (105) are opened inside the medicine preparation box (101), and the inlet pipes (102) and outlet pipes (103) are respectively connected to the corresponding medicine chambers (105).

5. The filtration device for treating oily wastewater as described in claim 4, characterized in that: The medicine chamber (105) is equipped with a mixing component (400). The mixing component (400) includes a hollow box (401). The hollow box (401) is fixed to the inner wall of the medicine dispensing box (101). The upper and lower ends of the hollow box (401) are respectively rotatably connected to a rotating shaft (402). Two first stirring rods (403) are fixed on the rotating shaft (402). The outer peripheral wall of one end of the two rotating shafts (402) is rotatably connected to the medicine dispensing box (101). The other end of the rotating shaft (402) is fixed with a first bevel gear (404). A second bevel gear (405) is meshed between the two first bevel gears (404). The first bevel gear (404) and the second bevel gear (405) are respectively located inside the hollow box (401).

6. The filtration device for treating oily wastewater as described in claim 5, characterized in that: A rotating rod (406) is fixedly provided in the middle of the second bevel gear (405). A support block (410) is fixedly provided in the inner wall of the hollow box (401). The outer peripheral wall of the rotating rod (406) is rotatably connected to the support block (410). The other ends of the two rotating rods (406) extend through the medicine dispensing box (101) to the outside. A pulley (407) is sleeved on the outer peripheral wall of one end of the rotating rod (406). The grooves of the two pulleys (407) are driven by friction through a belt (408). A second servo motor (409) is installed on the outer wall of the medicine dispensing box (101). The output shaft of the second servo motor (409) is coaxially connected to one of the rotating rods (406).

7. The filtration device for treating oily wastewater as described in claim 1, characterized in that: The top surface of the filter body (100) is open, and a drain pipe (106) with a valve is provided at the lower end of the filter body (100). A magnetic float level gauge (107) is connected to the side wall of the filter body (100). A reaction assembly (500) is provided inside the filter body (100). The reaction assembly (500) includes a rotating shaft (501). The upper outer peripheral wall of the rotating shaft (501) is rotatably connected to the dosing tank (101). A third servo motor (502) is installed on the top surface of the dosing tank (101). The output shaft of the third servo motor (502) is coaxially connected to the rotating shaft (501).

8. The filtration device for treating oily wastewater as described in claim 7, characterized in that: An impeller (503) is fixedly mounted on the outer peripheral wall of the lower end of the rotating shaft (501). Two second stirring rods (504) and a third stirring rod (505) are mounted on the upper end of the impeller (503). The second stirring rods (504) and the third stirring rods (505) are fixedly connected to the rotating shaft (501) respectively. A positioning block (506) is rotatably connected to the lower end of the rotating shaft (501). The two ends of the positioning block (506) are fixedly connected to the inner wall of the filter body (100) respectively.

9. The filtration device for treating oily wastewater as described in claim 8, characterized in that: A connecting rod (507) is fixedly mounted on the outer peripheral wall of the middle part of the rotating shaft (501). A scraper (508) is fixedly mounted on the outer end of the connecting rod (507). The outer wall of the scraper (508) is slidably connected to the inner wall of the filter body (100). The bottom surface of the filter body (100) is inclined. An annular aeration frame (509) is installed at the lower end of the filter body (100). Multiple aerators (510) are connected to the upper end of the annular aeration frame (509). An air inlet pipe (511) with a valve is connected to the filter body (100). The air inlet pipe (511) is connected to the annular aeration frame (509). A scraper block (512) is fixedly mounted on the rotating shaft (501). An I-shaped floating block (513) is slidably connected to the middle of the scraper block (512).

10. The filtration device for treating oily wastewater as described in claim 9, characterized in that: The filter body (100) is provided with a slag discharge assembly (600) at its upper end. The slag discharge assembly (600) includes a discharge trough (601). The discharge trough (601) is fixedly connected to the outer wall of the filter body (100). The top surface of the filter body (100) is provided with an arc groove (602). An arc block (603) is slidably connected to the inner wall of the arc groove (602). A third cylinder (604) is installed on the outer peripheral wall of the filter body (100). A moving block (605) is fixedly provided at the lower end of the piston rod of the third cylinder (604). The moving block (605) is fixedly connected to the upper outer peripheral wall of the arc block (603).

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