CN108275792B

CN108275792B - Sewage treatment device and sewage treatment method

Info

Publication number: CN108275792B
Application number: CN201810086007.8A
Authority: CN
Inventors: 赵锡锋; 翁景坚; 沈鑫权; 吴磊; 占琪; 李欣文
Original assignee: Zhejiang Industry and Trade Vocational College
Current assignee: Zhejiang Industry and Trade Vocational College
Priority date: 2018-01-29
Filing date: 2018-01-29
Publication date: 2020-10-09
Anticipated expiration: 2038-01-29
Also published as: CN108275792A

Abstract

The invention discloses a sewage treatment device and a sewage treatment method, and relates to the technical field of sewage treatment. The oil-water separation device is simple in structure and convenient to operate, water leakage is prevented by the design of the sealing gasket, a circular hole with the diameter of 2-3 microns is formed in the filtering hole of the oil-water separation nanofiber plate (8), and the oil-water separation nanofiber plate is designed to have a fifteen-degree taper from the top to bottom in section, so that the oil-water separation state is optimal, the water saving of a family is realized, and the living cost of people is reduced; not only reduces the total amount of domestic sewage discharge, but also reduces the social environmental treatment pressure.

Description

Sewage treatment device and sewage treatment method

Technical Field

The invention relates to the technical field of sewage treatment, in particular to a sewage treatment device and a sewage treatment method.

Background

At present, domestic sewage treatment is greatly different from foreign countries, the foreign countries are prone to large-scale city independent domestic sewage pipe network systems dominated by governments, technical treatment comprises domestic sewage treatment, recycling and re-application, and meanwhile, treatment substances in sewage such as nitrogen, phosphorus and the like are also recycled and applied. However, at present, various types of sewage are not treated by being distinguished in China, such as domestic sewage, industrial sewage and the like which are mixed together and are treated by a sewage treatment plant, so that the burden of the sewage treatment plant is greatly increased. In addition, the sewage treatment technology for a single household is almost zero.

Chinese patent application No. 201520490476.8 discloses an oil-water separator, including box and case lid, the case lid sets up in the box top, the box includes first cavity, second cavity and third cavity, first cavity one end is equipped with the sewage entry, is equipped with the filter screen basket between first cavity and the second cavity, is equipped with the cavity baffle between second cavity and the third cavity, the third cavity top is equipped with the oil extraction valve, and third cavity one side is equipped with the oil-free sewage baffle, and oil-free sewage baffle one side is equipped with the outlet, and this device has the not thorough defect of oil-water separation.

Chinese patent application No. 201610151679.3 discloses a domestic sewage purification device, include the sewage collecting tank, biological rope purification tank, aquatic plant purification tank, prefiltration pond, the sewage purification group that communicate in proper order with the raceway, wherein between sewage collecting tank and the biological rope purification tank, between biological rope purification tank and the aquatic plant purification tank, all be equipped with the water pump between aquatic plant purification tank and the prefiltration pond, be equipped with the grid in the sewage collecting tank, the prefiltration pond includes the three-layer filter screen, the sewage purification group includes a plurality of sewage purification ware, and inside from last to having set gradually water inlet, polypropylene melt spout filter element layer, granule active carbon filter element layer, infiltration silver-activated carbon filter element layer, polypropylene melt spout filter element layer, water storage inner chamber, delivery port down, sewage purification ware delivery port department installs tap. This device lacks the oil-water separation function.

Disclosure of Invention

The invention aims to provide a sewage treatment device and a sewage treatment method, so as to solve the defects in the prior art.

A sewage treatment device comprises a base, a motor, a driving gear, a rotating platform and a top cover, wherein the first support and the second support are fixedly connected to the bottom of the base, the motor is fixed on the second support, the driving gear is connected to the rotating shaft of the motor, the driving gear is meshed with the rotating platform together, a supporting column is rotatably connected to the top of the base through a bearing arranged in the base, the top of the supporting column is fixedly connected to the bottom of the rotating platform, a shell, an oil-water separation nano-fiber plate, a cylinder and a central filter screen are sequentially arranged between the top cover and the rotating platform from outside to inside, the tops of the shell, the oil-water separation nano-fiber plate and the central filter screen are fixedly connected with the top cover together, the top of the cylinder is slidably connected with the top cover together, the lower end of the cylinder is fixedly connected with the rotating platform together, and the, still be equipped with through-hole and helical blade on the barrel, shell, oil-water separation nanofiber board and barrel all are equipped with the closing plate in sliding connection vicinity, the bottom of closing plate is connected with the spring, spring coupling has sealed the pad, the filtration hole of oil-water separation nanofiber board is the circular port of diameter 2-3 microns, and oil-water separation nanofiber board becomes the tapering design of fifteen degrees by the cross-section from top to bottom, be equipped with the water inlet on the top cap, the lower extreme of shell is equipped with the delivery port, the bottom of revolving stage still is equipped with annular fuel tank.

Preferably, the annular oil containing tank is made of transparent plastic.

Preferably, the annular oil containing tank is detachably connected with the bottom of the rotating platform through bolts.

Preferably, the water inlet is also provided with a fan-shaped ring.

A sewage treatment method of a sewage treatment device is characterized in that: the method comprises the following steps:

1) putting the sewer pipes of the vegetable washing pool and the dish washing pool into the water inlet;

2) starting a motor to rotate the rotating platform;

3) opening a water outlet switch to collect the purified sewage;

4) after the collection is finished, the motor is closed;

preferably, the rotating speed of the rotating platform is controlled to be 5-8 revolutions per minute.

The invention has the advantages that: the oil-water separation device is simple in structure and convenient to operate, water leakage is prevented by the design of the sealing gasket, the filtering holes of the oil-water separation nano fiber plate 8 are circular holes with the diameter of 2-3 micrometers, and the oil-water separation nano fiber plate is designed to form a fifteen-degree taper from the top to the bottom in section, so that the oil-water separation state is optimal, water is saved for families, and the living cost of people is reduced; not only reduces the total amount of domestic sewage discharge, but also reduces the social environmental treatment pressure.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.

FIG. 2 is an enlarged view of the sliding connection in example 1 of the present invention.

Fig. 3 is a schematic structural view of a cylinder in embodiment 1 of the present invention.

Fig. 4 is a schematic view of the bolt in embodiment 1 of the present invention.

Wherein, 1-base, 2-bracket I, 3-motor, 4-bracket II, 5-driving gear, 6-rotating platform, 7-shell, 8-oil

The water separation device comprises a water separation nanometer fiber plate, 9-a spiral blade, 10-a cylinder, 11-a through hole, 12-a top cover, 13-a water inlet, 14-an annular oil containing tank, 15-a central filter screen, 16-a water outlet, 17-a sealing plate, 18-a spring, 19-a sealing gasket, 20-a bolt, 21-a sector ring and 22-a supporting column.

Detailed Description

Example 1

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 3, a sewage treatment device comprises a base 1, a motor 3, a driving gear 5, a rotating platform 6 and a top cover 12, wherein the first support 2 and the second support 4 are fixedly connected to the bottom of the base 1, the motor 3 is fixed on the second support 4, the driving gear 5 is connected to a rotating shaft of the motor 3, the driving gear 5 is meshed with the rotating platform 6, a supporting column 22 is rotatably connected to the top of the base 1 through a bearing, the top of the supporting column 22 is fixedly connected to the bottom of the rotating platform 6, a shell 7, an oil-water separation nanofiber plate 8, a cylinder 10 and a central filter screen 15 are sequentially arranged between the top cover 12 and the rotating platform 6 from outside to inside, the tops of the shell 7, the oil-water separation nanofiber plate 8 and the central filter screen 15 are fixedly connected with the top cover 12, and the top of the cylinder 10 is slidably connected with the top, the lower extreme of barrel 10 is in the same place with revolving stage 6 fixed connection, the bottom and the revolving stage 6 sliding connection of shell 7 and oil water separation nanofiber board 8 are in the same place, still be equipped with through-hole 11 and helical blade 9 on the barrel 10, shell 7, oil water separation nanofiber board 8 and barrel 10 all are equipped with closing plate 17 in sliding connection vicinity, the bottom of closing plate 17 is connected with spring 18, spring 18 is connected with sealed 19, the filtration hole of oil water separation nanofiber board 8 is the circular port of diameter 2-3 microns, and oil water separation nanofiber board by the tapering design of the section one-tenth fifteen degrees of top to bottom, be equipped with water inlet 13 on top cap 12, the lower extreme of shell 7 is equipped with delivery port 16, the bottom of revolving stage 6 still is equipped with annular fuel containing tank 14.

A sewage treatment method of a sewage treatment device is characterized in that: the method comprises the following steps: 1, putting the sewer pipes of a vegetable washing pool and a dish washing pool into a water inlet;

2 starting the motor to rotate the rotating platform;

3 opening a water outlet switch to collect the purified sewage;

4, turning off the motor after the collection is finished.

Before domestic sewage enters from the water inlet 13, solid impurities with the particle size larger than 2 mm are firstly filtered by the water tank filter screen, solid impurities with the particle size larger than 0.5 mm are filtered by the central filter screen 15, and micro-particles with the particle size of 0.3-0.5 mm are isolated by the oil-water separation nano-fiber plate 8.

The impurities filtered by the central filter screen 15 can directly fall to the bottom of the device; the inboard impurity of oil-water separation nanofiber board 8, partly can fall the bottom by oneself, and the impurity that another part glues on the lateral wall drives the bottom through helical blade 9, has realized oil-water separation nanofiber board 8's clearance, and oil is detained in nanofiber board 8's inside, slowly arrives the bottom, flows in annular flourishing oil tank 14 at last.

The oil-water separation of the nanofiber plate is realized, on one hand, the oleophylic property and the oil absorption of the material are achieved; on the other hand, from the separation engineering perspective, the oil-water separation problem is actually a two-phase separation technical problem of oil and water, and a mechanical separation mode is adopted here; because the kinematic viscosities of the oil liquid and the water liquid are different, the main influence parameters of the hydrodynamic pressure characteristics of the two liquids passing through directional holes with different shapes, including direction factors, inclination angles, fluid rotation speeds (flow speed, eccentricity and the like) and fluid film pressure performances, can have great difference; the finite element software of ansys is used for designing, an oil-water separation finite element fluid analysis experiment is carried out aiming at various influence parameters of oil-water separation, the fluid dynamic pressure characteristic influence rule of micron-sized directional holes with different shapes is researched and certain data is mastered under the condition that the dynamic pressure effect is considered and the parameters of flow speed, rotating speed, direction factors (circular, rhombic and elliptical), inclination angle and the like are contrastively analyzed, and the oil-water separation state is optimal under the condition that the 15-degree taper design is carried out on the circular holes with the diameter of 2-3 microns and the outer layer of a fiberboard.

Example 2

As shown in FIGS. 1 to 4, the other steps of a sewage treatment apparatus are the same as those of example 1.

In this embodiment, the annular oil containing tank 14 is made of transparent plastic, so that the oil level in the annular oil containing tank 14 can be conveniently observed, and oil leakage can be prevented.

In this embodiment, the annular oil containing tank 14 is detachably connected to the bottom of the rotating platform 6 through a bolt 20, so that the oil containing tank 14 is convenient to detach and clean.

In addition, the water inlet 13 is also provided with a fan-shaped ring 21, so that water in the basin can be poured into the device from the water inlet 13 and cannot spill outside.

It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.

Claims

1. The sewage treatment device is characterized by comprising a base (1), a motor (3), a driving gear (5), a rotating platform (6) and a top cover (12), wherein the bottom of the base (1) is fixedly connected with a first support (2) and a second support (4), the motor (3) is fixed on the second support (4), the driving gear (5) is connected on a rotating shaft of the motor (3), the driving gear (5) is meshed with the rotating platform (6), the top of the base (1) is rotatably connected with a supporting column (22) through a bearing, the top of the supporting column (22) is fixedly connected with the bottom of the rotating platform (6), a shell (7), an oil-water separation nanofiber plate (8), a barrel (10) and a central filter screen (15) are sequentially arranged between the top cover (12) and the rotating platform (6) from outside to inside, the oil-water separation device is characterized in that the top of the shell (7), the top of the oil-water separation nanofiber plate (8) and the top of the central filter screen (15) are fixedly connected with the top cover (12), the top of the barrel (10) is connected with the top cover (12) in a sliding manner, the lower end of the barrel (10) is fixedly connected with the rotating table (6), the bottom of the shell (7) and the bottom of the oil-water separation nanofiber plate (8) are connected with the rotating table (6) in a sliding manner, the barrel (10) is further provided with a through hole (11) and a helical blade (9), the shell (7), the oil-water separation nanofiber plate (8) and the barrel (10) are respectively provided with a sealing plate (17) near the sliding connection, the bottom of the sealing plate (17) is connected with a spring (18), the spring (18) is connected with a sealing gasket (19), and a filtering hole of the oil-water separation nanofiber, and the oil-water separation nanofiber plate is designed to have a fifteen-degree taper from the top to the bottom in cross section, a water inlet (13) is formed in the top cover (12), a water outlet (16) is formed in the lower end of the shell (7), and an annular oil containing tank (14) is further arranged at the bottom of the rotating platform (6).

2. The sewage treatment apparatus according to claim 1, wherein: the annular oil containing tank (14) is made of transparent plastic.

3. The sewage treatment apparatus according to claim 1, wherein: the annular oil containing tank (14) is detachably connected with the bottom of the rotating platform (6) through a bolt (20).

4. The sewage treatment apparatus according to claim 1, wherein: a fan-shaped ring (21) is also arranged at the water inlet (13).

5. A method for sewage treatment using the sewage treatment apparatus according to any one of claims 1 to 4, characterized in that: the method comprises the following steps:

2) starting a motor to rotate the rotating platform;

3) opening a water outlet switch to collect the purified sewage;

4) and after the collection is finished, the motor is turned off.

6. The method for sewage treatment by a sewage treatment plant according to claim 5, wherein: the rotating speed of the rotating platform (6) is controlled to be 5-8 revolutions per minute.