Degreasing water treatment equipment and treatment method thereof

Abstract

The invention provides degreased water treatment equipment and a treatment method thereof, and solves the problems of difficulty in degreasing, non-uniform dosing and mixing uniformity and the like in the existing sewage treatment, the equipment structure comprises a water distribution tank, a solid-liquid separation area, a dosing area and a degreasing area which are mutually independent are sequentially arranged in the water distribution tank, an oil fishing mechanism is fixed at the top of the degreasing area, and the oil fishing mechanism is fixed at the bottom of the water distribution tank; the oil bailing mechanism comprises an oil bailing plate which is driven by a servo to rotate, the oil bailing plate is vertically placed, the bottom of the oil bailing plate is kept to be in contact with an upper oil layer in the degreasing area, a plurality of stirring mechanisms are fixed in the dosing area at equal intervals, each stirring mechanism comprises an adjusting part, a driving part and a stirring blade, the stirring blade is of a circular structure, and the adjusting part is connected with the driving part. The driving piece is used for driving the stirring blade to swing in a universal mode around the circle center of the stirring blade, and the adjusting piece is used for conducting eccentric adjustment on the stirring blade; the multi-stage filtering structure is arranged on the outer side of the water distribution tank; one end of the water pump is communicated with the solid-liquid separation area through a pipeline, and the other end of the water pump is communicated with the multi-stage filter through a pipeline.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and in particular to a degreasing water treatment device and a treatment method thereof. Background Art

[0002] In the process of industrial wastewater treatment, there are not only some heavy metal elements and particles in the industrial wastewater, but also some oils and industrial chemical residual elements. Before the water treatment equipment treats the industrial wastewater, it is necessary to use a filter device to filter the wastewater to intercept the solid particles and other substances inside it, so as to reach the device with the function of separating pure liquid. Then the wastewater is treated by biological, physical and chemical methods to make the wastewater recyclable. The commonly used industrial wastewater treatment is generally to add chemicals to the sewage treatment pool, use the chemicals to precipitate the suspended matter in the water, and then discharge the purified water to achieve the effect of water recycling.

[0003] However, for the existing industrial wastewater treatment process, it is difficult to quickly and effectively separate and collect the oil in it, and the subsequent drug adding and mixing process only uses a stirring blade to stir the motor. The stirring blade itself is mostly a fan blade structure. The fan blade structure can only meet the drug mixing in the center of the water area. The drug mixing is not uniform enough, and it is difficult to achieve further improvement of the sewage treatment process.

[0004] Therefore, we propose a degreasing water treatment equipment and a treatment method thereof to solve the above problems. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the defects of the prior art. The present invention proposes a degreasing water treatment device and a treatment method thereof. The sewage can be subjected to a series of steps such as solid particle stratification, oil removal and degreasing, and drug addition and disinfection in a step-by-step manner. The drug addition process is mixed by the stirring blade that can eccentrically rotate in a universal direction, so that the drug is mixed more fully and the process effect is significantly improved.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a degreasing water treatment equipment, comprising:

[0007] A water separation tank is provided with a mutually independent solid-liquid separation zone, a dosing zone and a degreasing zone in sequence, the dosing zone is connected with a valve at the bottom of the degreasing zone, a filter is fixed horizontally in the solid-liquid separation zone to separate solid particles, an oil scooping mechanism is fixed on the top of the degreasing zone, the oil scooping mechanism includes an oil scooping plate driven to rotate by a servo, the oil scooping plate is placed vertically and keeps the bottom in contact with the upper oil layer in the degreasing zone, a plurality of stirring mechanisms are fixed equidistantly in the dosing zone, each of the stirring mechanisms includes an adjusting member, a driving member and a stirring blade, the stirring blade is a circular structure, the driving member is used to drive the stirring blade to swing universally at its center, and the adjusting member is used to eccentrically adjust the stirring blade;

[0008] A multi-stage filtering structure is arranged outside the water separation pool, and includes at least two bag filters, adjacent bag filters are connected by pipelines, and the bag filter at the last stage is connected by pipeline to the degreasing area;

[0009] A water pump, one end of which is connected to the solid-liquid separation zone pipeline, and the other end of which is connected to the multi-stage filter pipeline.

[0010] Furthermore, the oil scooping mechanism also includes a mounting plate, a reduction motor, an electric control box, an oil scraper plate and an oil collecting trough. The mounting plate is bolted to the outer edge of the top of the degreasing area, and a motor isolation cover is fixed to the inner end thereof, and the outer end thereof is welded and fixed to the oil collecting trough. The center of the oil scooping plate is connected to the inner wall bearing of the motor isolation cover through a rotating shaft and keeps the bottom end exposed to the motor isolation cover. The reduction motor is fixedly connected to the outer side of the motor isolation cover, and its output end is coaxially fixed to the rotating shaft. The oil scraper plate includes two symmetrically arranged on both sides of the oil scraper plate, and each of the oil scrapers has a triangular outer edge protruding on the top of one end close to the oil scraper plate, and the outer edge is in frictional contact with the surface of the oil scraper plate.

[0011] Furthermore, an angle groove is fixed at the bottom of the oil scraper plate, and the angle groove is fixed at an angle on the inner wall of the motor isolation cover, with an inclination angle of 30° to 60°. One end of the bottom of the angle groove overlaps with the oil collecting groove, and a groove is passed through the center of the top end for the oil skimmer plate to rotate.

[0012] Furthermore, the electric control box is electrically connected to the reduction motor, and is integrated with a control panel to adjust the speed of the reduction motor.

[0013] Furthermore, a plurality of horizontal plates are fixed on the top of the drug adding area, and adjusting pieces are equidistantly fixed on each horizontal plate through vertical plates.

[0014] Furthermore, each of the adjusting parts includes a rotating table, a screw rod, a nut seat, a limit plate, a push plate and a swing plate, the rotating table includes two and symmetrically fixed on the upper and lower ends of the vertical plates, the screw rod is rotatably connected in the two rotating tables, a limit groove is provided in the center of the limit plate, the top of the nut seat is slidably connected in the limit groove, and its bottom is threadedly matched with the screw rod, one end of the push plate is hinged to the top of the nut seat through a first hinge leaf, and the other end is hinged to the back of the swing plate through a second hinge leaf, the bottom end of the swing plate is hinged to the bottom end of the limit plate through a third hinge leaf, and the top shaft section of the screw rod is exposed on the vertical plate and coaxially fixed with an adjustment handle.

[0015] Furthermore, the driving member includes a swing shaft, a motor fixing platform, an eccentric plate, a roller, a support rod and a limit platform. The swing shaft is rotatably connected to the motor fixing platform, one end of which is driven to rotate by a motor, and the other end is connected and fixed to the eccentric plate. The end of the eccentric plate away from the swing shaft is bent and arranged and vertically fixed to the support rod. The roller is rollingly connected to the other end of the support rod, and the stirring blade is rotatably connected to the outer wall of the roller and limited by the limit platform.

[0016] Furthermore, the limit platform includes two conical panels symmetrically around the center of the roller, the two conical panels are connected as a whole by a connecting plate, the top center of each conical panel is hollowed out and rollingly connected to the roller, the stirring blade is grooved and inserted at the corresponding connecting plate for limiting, the outer side of the conical panel close to the eccentric plate is connected and fixed to the motor fixing platform through an extension plate, the stirring blade is exposed outside the conical panel and is always kept apart from the dosing area during the swinging process.

[0017] Furthermore, the bag filter is of WS model series and is a single bag type, with a single bag size of ф219x410mm and a flow rate of 10-20m 3 / h, working pressure is 1.5bar.

[0018] The water treatment method for the above-mentioned degreasing water treatment equipment comprises the following steps:

[0019] S1. Sewage enters the pool and is first separated by a static separation in the solid-liquid separation area. A filter is installed simultaneously to prevent floating particles from rising again. After the stratification is completed, the upper layer of liquid is pumped by a water pump and then filtered through multiple bag filters in turn. The flow rate in the pipeline is controlled at 10-20m 3 / h, working pressure is 1.5bar;

[0020] S2. After the bag filter is finished filtering, it is sent to the degreasing area for a second static period until the oil floats up and separates. The speed of the oil skimming plate is adjusted by the electric control box to correspond to the height of the separation layer. Then the oil skimming plate absorbs the upper layer of grease, and the oil scraper plate scrapes it off and drops it into the oil receiving tank at an angle.

[0021] S3. After degreasing, the valve is opened to allow the lower layer of water in the degreasing area to enter the dosing area, and inorganic flocculants and disinfectants are added simultaneously, and then stirred and mixed by multiple stirring mechanisms. During the stirring process, the stirring blades can be eccentrically adjusted by the driving parts and the adjusting parts to ensure sufficient mixing.

[0022] Compared with the prior art, the beneficial effects of the present invention include: the sewage after solid-liquid separation can be adsorbed and filtered through two bag filters and sent to the degreasing area for static storage, and then adsorbed, scraped and sent out by the oil scoop plate when it rotates, and finally the medicine is added in the medicine adding area, and universal stirring is performed simultaneously through multiple stirring mechanisms, and the stirring position can be eccentrically adjusted through the corresponding adjusting parts, avoiding the problems of insufficient stirring and insufficient drug mixing uniformity caused by conventional fan-type stirring blades. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The disclosure of the present invention is described with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. In the accompanying drawings, the same reference numerals are used to refer to the same components. Among them:

[0024] Figure 1 The overall structural diagram of a water treatment device according to one embodiment of the present invention is schematically shown;

[0025] Figure 2 A schematic diagram of the structure of a stirring mechanism proposed according to an embodiment of the present invention is shown;

[0026] Figure 3 A schematic diagram of the back structure of a stirring mechanism according to an embodiment of the present invention is shown;

[0027] Figure 4 A schematic diagram of the structure of an oil recovery mechanism according to an embodiment of the present invention is shown;

[0028] Figure 5 A schematic diagram of the structure of an adjusting member according to an embodiment of the present invention is shown;

[0029] Figure 6 The schematic diagram of the structure of the limiting platform proposed according to an embodiment of the present invention is shown schematically.

[0030] Numbers in the figure:

[0031] 1. Water separation tank; 12. Solid-liquid separation area; 13. Dosing area; 14. Degreasing area;

[0032] 2. Oil scooping mechanism; 201. Oil scooping plate; 202. Mounting plate; 203. Speed ​​reduction motor; 204. Electric control box; 205. Oil scraper; 206. Oil receiving tank; 207. Rotating shaft; 208. Outer edge; 209. Angle slot; 210. Slotting;

[0033] 3. stirring mechanism; 31. adjusting member; 32. driving member; 33. stirring blade; 34. horizontal plate; 35. vertical plate;

[0034] 311, rotating table; 312, screw rod; 313, nut seat; 314, limit plate; 315, push plate; 316, swing plate; 317, limit groove; 318, first hinge leaf; 319, second hinge leaf; 320, third hinge leaf; 330, adjustment handle;

[0035] 321, swing shaft; 322, motor fixing platform; 323, eccentric plate; 324, roller; 325, support rod; 326, limit platform; 327, cone panel; 328, connecting plate; 329, extension plate;

[0036] 4. Multi-stage filtration structure; 41. Bag filter; 5. Water pump. DETAILED DESCRIPTION

[0037] It is easy to understand that according to the technical solution of the present invention, without changing the essential spirit of the present invention, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific implementation modes and drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as the whole of the present invention or as a limitation or restriction to the technical solution of the present invention.

[0038] According to one embodiment of the present invention, Figure 1-Figure 6 Shown.

[0039] like Figure 1 As shown, for the overall structure, in this embodiment, a degreasing water treatment device includes:

[0040] A water separation tank 1 is provided with a mutually independent solid-liquid separation zone 12, a dosing zone 13 and a degreasing zone 14 in sequence, the dosing zone 13 is connected with a valve at the bottom of the degreasing zone 14, a filter is fixed horizontally in the solid-liquid separation zone 12 to separate solid particles, an oil scooping mechanism 2 is fixed on the top of the degreasing zone 14, the oil scooping mechanism 2 comprises an oil scooping plate 201 driven by a servo to rotate, the oil scooping plate 201 is placed vertically and keeps the bottom in contact with the upper oil layer in the degreasing zone 14, a plurality of stirring mechanisms 3 are fixed equidistantly in the dosing zone 13, each of the stirring mechanisms 3 comprises an adjusting member 31, a driving member 32 and a stirring blade 33, the stirring blade 33 is a circular structure, the driving member 32 is used to drive the stirring blade 33 to swing in a universal direction at its center, and the adjusting member 31 is used to eccentrically adjust the stirring blade 33;

[0041] The multi-stage filtering structure 4 is arranged outside the water separation pool 1, and includes at least two bag filters 41. Adjacent bag filters 41 are connected by pipelines, and the bag filter 41 of the last stage is connected by pipeline to the degreasing area 14;

[0042] The water pump 5 has one end connected to the pipeline of the solid-liquid separation zone 12 and the other end connected to the pipeline of the multi-stage filter.

[0043] Through the above structure, the filter screen can be made of stainless steel to prevent the suspended particles in the solid-liquid separation area 12 from floating up again. The sewage is then adsorbed and filtered through two bag filters 41 and sent to the degreasing area 14 for standing. The sewage is then adsorbed, scraped and sent out by the oil scoop plate 201 when it rotates. Finally, the medicine is added in the dosing area 13, and universal stirring is performed simultaneously through multiple stirring mechanisms 3. The stirring position can be eccentrically adjusted through the corresponding adjustment member 31, avoiding the problems of insufficient stirring and insufficient drug mixing uniformity caused by the conventional fan-type stirring blades 33.

[0044] like Figure 4 As shown, the oil scooping mechanism 2 also includes a mounting plate 202, a reduction motor 203, an electric control box 204, an oil scraper plate 205 and an oil receiving groove 206. The mounting plate 202 is bolted to the outer edge 208 of the top of the degreasing area 14, and a motor isolation cover is fixed on its inner end, and the outer end is welded and fixed to the oil receiving groove 206. The center of the oil scooping plate 201 is connected to the inner wall bearing of the motor isolation cover through a rotating shaft 207 and keeps the bottom end exposed to the motor isolation cover. The reduction motor 203 is fixedly connected to the outer side of the motor isolation cover, and its output end is coaxially fixed with the rotating shaft 207. The oil scraper plate 205 includes two and symmetrically arranged on both sides of the oil scraper plate 201. Each of the oil scraper plates 205 has a triangular outer edge 208 protruding on the top of one end close to the oil scraper plate 201, and the outer edge 208 is in friction contact with the surface of the oil scraper plate 205.

[0045] Furthermore, an angle slot 209 is fixed at the bottom of the oil scraper plate 205, and the angle slot 209 is fixed at an angle on the inner wall of the motor isolation cover, and its inclination angle is 30° to 60°. One end of the bottom of the angle slot 209 overlaps the oil receiving groove 206, and a slot 210 is passed through the center of the top end for the rotation of the oil scraper plate 201. The electric control box 204 is electrically connected to the reduction motor 203, and is integrated with a control panel to adjust the speed of the reduction motor 203.

[0046] The inclined scraper plate 205 can firstly allow the scraped grease to fall by gravity for collection, and secondly, can maximize the contact length between the scraper plate 205 and the oil scooping plate 201 to improve the degreasing efficiency.

[0047] like Figure 1-Figure 3 As shown, a plurality of horizontal plates 34 are fixed on the top of the dosing area 13, and an adjusting member 31 is equidistantly fixed on each horizontal plate 34 through a vertical plate 35. There are many specific options for the adjusting member 31 and the driving member 32. In this embodiment, the specific structure is as follows.

[0048] like Figure 5 As shown, each of the adjustment members 31 includes a rotating platform 311, a screw rod 312, a nut seat 313, a limiting plate 314, a push plate 315 and a swing plate 316. The rotating platform 311 includes two and is symmetrically fixed to the upper and lower ends of the vertical plates 35. The screw rod 312 is rotatably connected in the two rotating platforms 311. The limiting plate 314 is provided with a limiting groove 317 in the center. The top of the nut seat 313 is slidably connected in the limiting groove 317, and its bottom is threadedly matched with the screw rod 312. One end of the push plate 315 is hinged to the top of the nut seat 313 through a first hinge leaf 318, and the other end is hinged to the back of the swing plate 316 through a second hinge leaf 319. The bottom end of the swing plate 316 is hinged to the bottom end of the limiting plate 314 through a third hinge leaf 320. The top shaft section of the screw rod 312 is exposed and a vertical plate 35 is provided and coaxially fixed with an adjustment handle 330.

[0049] After manually turning the adjustment handle 330, the screw rod 312 can be positioned and rotated in the rotating table 311, and then the nut seat 313 matched with its thread can be shifted up and down under the limiting action of the limiting groove 317, and synchronously drive the hinged push plate 315 to shift. Due to the hinge action of the second hinge leaf 319 and the third hinge leaf 320, the displacement of the push plate 315 can be converted into a support for the back of the swing plate 316, thereby realizing the adjustment effect of the swing plate within a certain angle range, which is convenient for the subsequent eccentric adjustment of the stirring blade 33.

[0050] Furthermore, the driving member 32 includes a swing shaft 321, a motor fixing platform 322, an eccentric plate 323, a roller 324, a support rod 325 and a limit platform 326. The swing shaft 321 is rotatably connected to the motor fixing platform 322, one end of which is driven to rotate by the motor, and the other end is connected and fixed to the eccentric plate 323. The end of the eccentric plate away from the swing shaft 321 is bent and arranged and vertically fixed to the support rod 325. The roller 324 is rollingly connected to the other end of the support rod 325. The stirring blade 33 is rotatably connected to the outer wall of the roller 324 and is limited by the limit platform 326.

[0051] After the swing shaft 321 is driven to rotate by an external motor (not shown in the figure), it can drive the roller 324 to rotate under the action of the eccentric plate 323, and the upper and lower ends of the roller 324 are limited by the limiting platform 326, and can swing in all directions in the water. The swing amplitude is more sufficient than that of the existing fan-type stirring blade 33, which can ensure the drug mixing effect of each sewage in the dosing area 13.

[0052] like Figure 6 As shown, the limiting platform 326 includes two conical panels 327 symmetrically centered on the roller 324, and the two conical panels 327 are connected as a whole through a connecting plate 328. The top center of each conical panel 327 is hollowed out and rollingly connected to the roller 324. The stirring blade 33 is grooved 210 at the corresponding connecting plate 328 and inserted for limiting. The outer side of the conical panel 327 close to the eccentric plate 323 is connected and fixed to the motor fixing platform 322 through an extension plate 329. The stirring blade 33 is exposed outside the conical panel 327 and is always kept spaced from the dosing area 13 during the swinging process.

[0053] Through the above structure, after the roller 324 rotates, it is clamped and limited by the tops of the two conical panels 327, and can swing along the connecting plate 328. During the swinging process, the stirring blade 33360° rotates up and down, and after the subsequent adjustment member 31 is adjusted synchronously, the mixing effect is better.

[0054] Furthermore, the bag filter 41 is of the WS model series and is a single bag type, with a single bag size of ф219x410mm and a flow rate of 10-20m 3 / h, working pressure is 1.5bar.

[0055] Similarly, the water treatment method applied to the above-mentioned degreasing water treatment equipment is also within the protection scope of the present invention, and the corresponding processing steps are as follows:

[0056] S1. Sewage enters the pool and is first separated by a solid-liquid separation zone 12. A filter is installed simultaneously to prevent floating particles from rising again. After the stratification is completed, the upper layer of liquid is pumped by a water pump 5 and then filtered by multiple bag filters 41. The flow rate in the pipeline is controlled at 10-20m 3 / h, working pressure is 1.5bar;

[0057] S2, after the bag filter 41 is filtered, it is sent to the degreasing area 14 for a second static state until the oil floats up and separates, and the electric control box 204 adjusts the speed of the oil scooping plate 201 to correspond to the height of the separation layer, and then the oil scooping plate 201 absorbs the upper layer of grease, and the oil scraper plate scrapes it off synchronously and drops it obliquely into the oil receiving tank 206;

[0058] S3. After degreasing is completed, the valve is opened to allow the lower layer of water in the degreasing area 14 to enter the dosing area 13, and inorganic flocculants and disinfectants are added simultaneously, and then stirred and mixed by multiple stirring mechanisms 3. During the stirring process, the driving member 32 and the adjusting member 31 can eccentrically adjust the stirring blade 33 to ensure sufficient mixing.

[0059] The technical scope of the present invention is not limited to the contents in the above description. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical idea of ​​the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.

Claims

1. A degreasing water treatment equipment, characterized in that: include: A water separation tank is provided with a mutually independent solid-liquid separation zone, a dosing zone and a degreasing zone in sequence, the dosing zone is connected with a valve at the bottom of the degreasing zone, a filter is fixed horizontally in the solid-liquid separation zone to separate solid particles, an oil scooping mechanism is fixed on the top of the degreasing zone, the oil scooping mechanism includes an oil scooping plate driven to rotate by a servo, the oil scooping plate is placed vertically and keeps the bottom in contact with the upper oil layer in the degreasing zone, a plurality of stirring mechanisms are fixed equidistantly in the dosing zone, each of the stirring mechanisms includes an adjusting member, a driving member and a stirring blade, the stirring blade is a circular structure, the driving member is used to drive the stirring blade to swing universally at its center, and the adjusting member is used to eccentrically adjust the stirring blade; A multi-stage filtering structure is arranged outside the water separation pool, and includes at least two bag filters, adjacent bag filters are connected by pipelines, and the bag filter at the last stage is connected by pipeline to the degreasing area; A water pump, one end of which is connected to the solid-liquid separation zone pipeline, and the other end of which is connected to the multi-stage filter pipeline.

2. A degreasing water treatment equipment according to claim 1, characterized in that: The oil scooping mechanism also includes a mounting plate, a reduction motor, an electric control box, an oil scraper plate and an oil receiving groove. The mounting plate is bolted to the outer edge of the top of the degreasing area, and a motor isolation cover is fixed to the inner end of the mounting plate, and the outer end is welded and fixed to the oil receiving groove. The center of the oil scooping plate is connected to the inner wall bearing of the motor isolation cover through a rotating shaft and keeps the bottom end exposed to the motor isolation cover. The reduction motor is fixedly connected to the outer side of the motor isolation cover, and its output end is coaxially fixed to the rotating shaft. The oil scraper plate includes two and symmetrically arranged on both sides of the oil scraper plate. Each of the oil scrapers has a triangular outer edge protruding on the top of one end close to the oil scraper plate, and the outer edge is in friction contact with the surface of the oil scraper plate.

3. A degreasing water treatment equipment according to claim 2, characterized in that: An angle groove is fixed at the bottom of the oil scraper plate, and the angle groove is fixed at an angle on the inner wall of the motor isolation cover, with an inclination angle of 30° to 60°. One end of the bottom of the angle groove overlaps the oil receiving groove, and a groove is passed through the center of the top end for the oil skimmer plate to rotate.

4. A degreasing water treatment equipment according to claim 2, characterized in that: The electric control box is electrically connected to the reduction motor and is integrated with a control panel to adjust the speed of the reduction motor.

5. A degreasing water treatment equipment according to claim 1, characterized in that: A plurality of horizontal plates are fixed on the top of the dosing area, and an adjusting piece is fixed on each horizontal plate at equal intervals through a vertical plate.

6. A degreasing water treatment equipment according to claim 5, characterized in that: Each of the adjusting parts includes a rotating table, a screw rod, a nut seat, a limit plate, a push plate and a swing plate. The rotating table includes two and is symmetrically fixed to the upper and lower ends of the vertical plates. The screw rod is rotatably connected to the two rotating tables. A limit groove is provided in the center of the limit plate. The top of the nut seat is slidably connected to the limit groove, and its bottom is threadedly matched with the screw rod. One end of the push plate is hinged to the top of the nut seat through a first hinge leaf, and the other end is hinged to the back of the swing plate through a second hinge leaf. The bottom end of the swing plate is hinged to the bottom end of the limit plate through a third hinge leaf. The top shaft section of the screw rod is exposed on the vertical plate and is coaxially fixed with an adjustment handle.

7. A degreasing water treatment equipment according to claim 6, characterized in that: The driving component includes a swing shaft, a motor fixing platform, an eccentric plate, a roller, a support rod and a limit platform. The swing shaft is rotatably connected to the motor fixing platform, one end of which is driven to rotate by a motor, and the other end is connected and fixed to the eccentric plate. The end of the eccentric plate away from the swing shaft is bent and arranged and vertically fixed to the support rod. The roller is rollingly connected to the other end of the support rod, and the stirring blade is rotatably connected to the outer wall of the roller and limited by the limit platform.

8. A degreasing water treatment equipment according to claim 7, characterized in that: The limiting platform includes two conical panels symmetrically centered on the roller, the two conical panels are connected as a whole by a connecting plate, the top center of each conical panel is hollowed out and rollingly connected to the roller, the stirring blade is opened at the corresponding connecting plate and inserted to limit the position, the outer side of the conical panel close to the eccentric plate is connected and fixed to the motor fixing platform through an extension plate, the stirring blade is exposed outside the conical panel and is always kept spaced apart from the dosing area during the swinging process.

9. The degreasing water treatment equipment according to claim 1, characterized in that: The bag filter is of WS series and single bag type. The size of a single bag is ф219x410mm and the flow rate is 10-20m 3 / h, working pressure is 1.5bar.

10. A water treatment method for the degreasing water treatment equipment according to any one of claims 1 to 9, characterized in that: The steps include: S1. Sewage enters the pool and is first separated by a static separation in the solid-liquid separation area. A filter is installed simultaneously to prevent floating particles from rising again. After the stratification is completed, the upper layer of liquid is pumped by a water pump and then filtered through multiple bag filters in turn. The flow rate in the pipeline is controlled at 10-20m 3 / h, working pressure is 1.5bar; S2. After the bag filter is finished filtering, it is sent to the degreasing area for a second static period until the oil floats up and separates. The speed of the oil skimming plate is adjusted by the electric control box to correspond to the height of the separation layer. Then the oil skimming plate absorbs the upper layer of grease, and the oil scraper plate scrapes it off and drops it into the oil receiving tank at an angle. S3. After degreasing, the valve is opened to allow the lower layer of water in the degreasing area to enter the dosing area, and inorganic flocculants and disinfectants are added simultaneously, and then stirred and mixed by multiple stirring mechanisms. During the stirring process, the stirring blades can be eccentrically adjusted by the driving parts and the adjusting parts to ensure sufficient mixing.

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