WO2022183695A1

WO2022183695A1 - Water purifying apparatus favoring oil-water separation

Info

Publication number: WO2022183695A1
Application number: PCT/CN2021/114721
Authority: WO
Inventors: 姚海航; 姚学辰
Original assignee: 浙江恒然环保科技有限公司
Priority date: 2021-03-05
Filing date: 2021-08-26
Publication date: 2022-09-09
Also published as: CN214734688U

Abstract

A water purifying apparatus favoring oil-water separation, comprising a housing (1), the interior thereof being recessed downwards to form a placement tank (11), the housing (1) being provided at both sides respectively with an inlet (12) and an outlet (13) in communication with the placement tank (11), and several partitions (15) being provided within the placement tank (11) to divide the placement tank (11) into several separation cavities (16); an oil scraping assembly (2), which comprises a mounting frame (21) and several scrapers (22), the mounting frame (21) being placed on the partitions (15), the scrapers (22) being rotatably provided on the mounting frame (21), and the lower ends of the scrapers (11) running through the mounting frame (21) and being exposed so as to scrape oil; and an oil collecting tank, which is provided at one side of the oil scraping assembly (2) and is used for collecting the oil scraped off by the scrapers (22). The placement tank (11) is divided by the partitions (15) into the several separation cavities (16), thus implementing multiple instances of oil-water separation, and in conjunction with the oil scraping assembly (2) consisting of the multiple scrapers (22), the area of contact is increased, thereby ensuring thorough oil-water separation.

Description

A water purification device that facilitates oil-water separation

technical field

The utility model belongs to the technical field of water purification equipment, in particular to a water purification equipment which is convenient for oil-water separation.

Background technique

Kitchen waste is generally produced by households, catering industry, and canteens of enterprises and institutions in the process of food processing and dining, and kitchen waste generally contains a large amount of oily sewage. And with the increasing awareness of social environmental protection, the recycling and secondary utilization of sewage is particularly important, so the equipment for oil-water separation has been developed.

For example, the patent number is 2018222619845, and the patent name is a utility model of a new type of oil-scraping small oil-water separator. Although the patent improves the oil-water separation capacity of sewage, the patent has only one separation chamber, so only one scraping can be implemented. Therefore, it is inevitable that the oil is not scraped off, that is, the separation of oil and water is not complete. Moreover, the contact area between the oil and the drum in the unit space is relatively small, so the oil-attaching ability generally means that the oil-water separation effect is not good, resulting in incomplete oil-water separation.

Utility model content

The purpose of the utility model is to provide a water purification device that is convenient for oil-water separation. The placing tank is divided into several separation chambers through the partition plate, thereby realizing multiple oil-water separation, and is matched with an oil scraping assembly composed of a plurality of scraping discs. Thus, the contact area is increased to ensure more thorough separation of oil and water, thus solving the problem of incomplete oil and water separation in existing equipment for oil and water separation.

The purpose of this utility model is achieved in this way:

A water purification device that facilitates oil-water separation, comprising:

The shell is formed with a placement slot in a downward depression, and the two sides of the shell are respectively provided with an inlet and an outlet that communicate with the placement slot, and a number of partitions are built in the placement slot to separate the placement slot into several separate cavities ;

an oil scraper assembly, comprising an installation frame and several scraper discs, the installation frame is placed on the partition, the scraper disc is rotatably arranged on the installation frame, and the lower end of the scraper disc passes through the installation frame and is exposed to scrape oil;

The oil collecting tank is arranged on one side of the oil scraping assembly and is used to collect the oil scraped by the scraper.

On the basis of the above scheme, further improved or preferred schemes also include:

Preferably, several heating pipes for heating the liquid are arranged in the separation chamber, so as to promote the separation of oil and water.

Preferably, several scraper strip groups are provided on the mounting frame, and the scraper strip group includes a scraper strip 1 and a scraper strip Scrape the oil from the pan.

Preferably, the mounting bracket is obliquely arranged on the partition, and a guide plate is bent downward at the end connected with the oil collecting tank, and the guide plate is placed on the upper end of the oil collecting tank;

A mounting plate is bent downwardly at the end of the mounting bracket away from the oil collecting tank, and a connecting plate is bent inwardly on the mounting plate.

Preferably, the oil scraping assembly further includes two motors, and several scrapers are connected by a rotating shaft, and a gear 1 is provided on both sides of the rotating shaft;

Both motors are provided with a drive shaft and are arranged on the mounting frame, the drive shaft is provided with a second gear, and the first gear and the second gear are meshed with each other.

Preferably, the housing is provided with a filter basket for filtering residues, the filter basket is located on one side of the oil scraping assembly and at the upper end of the separation cavity, and the filter basket is communicated with the inlet;

The two sides of the filter basket are provided with connecting tables, and two connecting racks are arranged in the placing slot, the connecting tables are placed on the connecting racks, and the other two sides of the filter basket are provided with taking holes for easy taking.

Preferably, an oil collecting plate is arranged in the placing groove, and oil baffles are bent on both sides of the oil collecting plate. The oil collecting trough is arranged between the side wall of the placing trough.

Preferably, several separation chambers are arranged in sequence from the inlet to the outlet, wherein the separation chamber located in the middle includes a separation area and an overflow area, and the separation chambers located on both sides respectively include a separation area and a drainage area, and two adjacent separation chambers The zones are connected through the overflow zone;

Several partitions include an upper partition and a lower partition, and the lower partition is located between two adjacent upper partitions, and there is separation between two adjacent upper partitions and between the upper partition and the side wall of the placement slot. The two sides of the lower partition are respectively the separation area and the overflow area.

Preferably, the plurality of separation chambers include a first separation chamber, a second separation chamber, a third separation chamber, a fourth separation chamber and a fifth separation chamber, wherein the width dimension of the first separation chamber and the third separation chamber is larger than that of the other separation chambers The width dimension of the cavity, and the oil scraping assembly covers the upper ends of the first separation cavity, the second separation cavity, the third separation cavity and the fourth separation cavity;

The number of scrapers corresponding to the third separation chamber is greater than the number of scrapers of other separation chambers, and the number of scrapers corresponding to the fourth separation chamber is smaller than the number of scrapers of other separation chambers;

Or/and, the first separation cavity, the second separation cavity and the third separation cavity are all provided with heating tubes, wherein the number of heating tubes set in the second separation cavity is larger than that in the first separation cavity, and the number of heating tubes in the first separation cavity is The set number of heating tubes is larger than that of the third separation chamber.

Preferably, one side of the casing is provided with a valve that communicates with the oil collecting tank, and the other side of the casing is provided with a control component, and the control component is connected with the oil scraping component, the power supply and the heating pipe and includes switches, temperature and time controllers and buttons;

Or/and, the bottom of the housing is provided with casters for easy movement.

Compared with the prior art, the present utility model has the following outstanding and beneficial technical effects:

1. The utility model divides the placement tank into several separation chambers through the partition plate, thereby realizing multiple oil-water separation, thereby enhancing the effect of oil-water separation, that is, improving the water purification efficiency, and ensuring that the oil-water separation is more thorough.

At the same time, the oil scraping component composed of multiple scraping discs increases the contact area compared with a drum, thereby increasing the oil-attaching capacity and ensuring a more thorough separation of oil and water.

2. The utility model can promote the separation of oil and water through the arrangement of the heating pipe, so as to avoid the situation that the liquid will freeze in winter and cause difficult separation.

3. The utility model adopts the inclined setting of the installation frame, and is provided with a guide plate, so that the oil can flow into the oil collecting tank according to the situation, and avoid the accumulation of oil on the installation frame.

4. The utility model adopts two motors located on both sides. Compared with the single-side motor, the torque of the rotating shaft of the utility model is relatively small, so the overall operation is relatively stable.

5. The utility model adopts different sizes for each separation chamber and corresponds to different numbers of scrapers and heating pipes, so that each separation chamber can achieve different effects, thereby making the oil-water separation more thorough.

Description of drawings

Fig. 1 is the structural sketch of the present utility model;

Figure 2 is a schematic diagram of the structure of the housing;

Fig. 3 is one of the structural sketches of the cross-sectional view of the present utility model;

Fig. 4 is the second sectional structural diagram of the utility model;

Fig. 5 is the enlarged structural diagram of A in Fig. 4;

Figure 6 is one of the structural diagrams of the oil scraping assembly;

Figure 7 is the second structural diagram of the oil scraping assembly;

Figure 8 is a schematic diagram of the structure of the filter basket.

In the figure: 1-shell; 11-place slot; 12-inlet; 13-outlet; 15-partition; 151-upper partition; 152-lower partition; 16-separation cavity; 161-first separation cavity; 162 - the second separation chamber; 163 - the third separation chamber; 164 - the fourth separation chamber; 165 - the fifth separation chamber; 166 - separation area; 167 - overflow area; 168 - drainage area; 17 - connecting frame; 2- oil scraping assembly; 21- mounting frame; 211- guide plate; 212- mounting plate; 213- connecting plate; 22- scraping plate; 23- scraping strip one; 24- scraping strip two; 25- motor; 251- drive Shaft; 252-Gear II; 26-Rotating Shaft; 261-Gear I; 27-Assembly Plate; 4-Heating Tube; 5-Filter Basket; 51-Connecting Table; 52-Take Hole; 6-Oil Collection Plate; Oil baffle; 7-valve; 8-control assembly; 81-switch; 82-temperature time controller; 83-button; 84-turning door; 85-door lock; 9-caster; 10-cover.

Detailed ways

The specific embodiments of the present utility model will be further described in detail below with reference to the accompanying drawings.

As shown in Figures 1 to 8, a water purification device that facilitates oil-water separation includes a casing 1, an oil scraping assembly 2 and an oil collecting tank. The shell 1 is composed of an outer shell, an inner liner and a skeleton. The skeleton is first combined into a basic outline, and then the outer shell is arranged on the outside of the skeleton, and the inner liner is arranged inside the skeleton.

At the same time, a placement groove 11 is formed in a downward depression in the casing 1, that is, a placing groove 11 is formed in a downward depression in the inner tank, and an inlet 12 and an outlet 13 are respectively provided on both sides of the casing 1 which are communicated with the placing groove 11. The placing groove 11 is built with a plurality of partitions 15 so as to divide the placing groove 11 into a plurality of separation chambers 16 . The structures of the inlet 12 and the outlet 13 are both open and then pass through pipes.

Therefore, in actual use, multiple separation chambers 16 are provided to achieve multiple oil-water separations, thereby enhancing the effect of oil-water separation, improving water purification efficiency, and ensuring more thorough oil-water separation.

Moreover, the oil scraper assembly 2 includes an installation frame 21 and several scraper discs 22, and the installation frame 21 is placed on the partition plate 15, while the wiper disc 22 is rotated and arranged on the installation frame 21, and the lower end of the scraper disc 22 passes through the installation frame 21 and exposed to scrape oil. The mounting frame 21 is provided with holes so that the scraper 22 is exposed.

Therefore, in actual use, the oil scraping assembly 2 composed of a plurality of scraping discs 22 increases the contact area compared to a drum, thereby increasing the oil attaching capacity and ensuring more thorough separation of oil and water.

And the oil collecting tank is arranged on one side of the oil scraping assembly 2 and is used for collecting the oil scraped by the scraping plate 22 . The structure of the oil collecting tank is as follows: first, an oil collecting plate 6 is arranged in the placing groove 11, and oil baffles 61 are bent on both sides of the oil collecting plate 6; The oil assembly 2 is connected, and an oil collecting groove is provided between the oil collecting plate 6 and the side wall of the placing groove 11 .

The oil baffle 61 is used to block the flow of oil to other places, and the oil collecting groove is wedge-shaped, so that the working chamber where the scraper 22 is located, that is, the separation chamber 16 has a trapezoidal section, so the upper part is small so that the floating oil can be concentrated , and then increase the thickness of the oil layer, which is beneficial to improve the efficiency of the scraping disc 22, thereby reducing the water content in the scraped liquid.

In a word, in the actual use process, the working principle of the whole equipment is: firstly, the scraper 22 is made of lipophilic and hydrophobic material, so the adhesion between the scraper 22 and the oil slick is large, and the adhesion between the water and the water is small. In this way, during the rotation of the scraper plate 22, the floating oil can adhere to the outside of the scraper plate 22, and the water will not be carried out by the scraper plate 22, so that the oil and water can be separated.

As shown in FIG. 4-FIG. 7, several scraper strip groups are arranged on the mounting frame 21, and the scraper strip group includes scraper strip one 23 and scraper strip two 24, and scraper strip one 23 and scraper strip two 24 are respectively arranged in Both sides of the scraper 22 are used to scrape the oil on the scraper 22 .

Wherein the first scraper 23 and the second scraper 24 are close to the scraper plate 22, and the first scraper 23 and the second scraper 24 are provided with contact plates upward, thereby increasing the contact area between the scraper and the scraper plate 22, and One end of the scraping strip 23 and the scraping strip 24 is beyond the scraping plate 22 and exposed, so that the oil can enter the oil collecting tank along the scraping strip.

Therefore, in the actual use process, the oil adhering to the outside of the scraper 22 is scraped off by the first scraper 23 and the second scraper 24 with the rotation of the scraper 22, and then flows into the oil collecting tank under the action of gravity, and is scraped by the scraper. The arrangement of the strips can prevent oil from accumulating on the scraper plate 22, which will reduce the ability of the scraper plate 22 to attach oil.

At the same time, the installation structure of the scraper is installed on the mounting frame 21 through the combination of the assembly plate 27 and the screw, and the adjacent scraper can be installed with the same assembly plate 27, so a larger area of the assembly plate 27 can be selected. Comparing two assembly boards 27 with smaller areas, the present invention is more convenient.

As shown in FIG. 3-FIG. 4, several heating pipes 4 for heating liquid are arranged in the separation chamber 16, so as to promote the separation of oil and water. Among them, the heating tube 4 is U-shaped. Compared with a straight line, the U-shaped contact area is larger so that it can be heated better. At the same time, compared with the S-shaped, the U-shaped structure is simple, so it is easy to clean.

At the same time, the heating tube 4 is installed on the side wall of the placing groove 11 . The function of the heating tube 4 is to promote the separation of oil and water, because after heating, the water flows upward, thereby driving the oil droplets to float up as soon as possible. At the same time, heating can avoid the situation that the liquid will freeze and be difficult to separate in winter.

As shown in FIGS. 4-7 , for the installation structure of the mounting frame 21, firstly, the mounting frame 21 is obliquely arranged on the partition plate 15, and a guide plate 211 is bent downward at the end connected with the oil collecting tank, and the guide plate 211 is placed at the top of the oil sump.

Therefore, the installation frame 21 is inclined and provided with the guide plate 211 , so that the oil can flow into the oil collecting tank according to the situation, and the accumulation of oil on the installation frame 21 is avoided.

At the same time, the end of the mounting bracket 21 away from the oil collecting tank is bent downward and is provided with a mounting plate 212, and the mounting plate 212 is bent inwardly and is provided with a connecting plate 213. Therefore, during installation, the mounting plate 212 can be abutted against the side wall of the placement groove 11 and installed. The connection plate 213 is placed on the partition plate 15 .

As shown in FIGS. 3 and 6 to 7 , the driving structure of the scraper 22 , first of all, the oil scraper assembly 2 also includes two motors 25 , and several scrapers 22 are connected through the rotating shaft 26 and are provided on both sides of the rotating shaft 26 There is a gear one 261.

At the same time, the two motors 25 are provided with a drive shaft 251 on the mounting frame 21, and the drive shaft 251 is provided with a second gear 252, and the first gear 261 and the second gear 252 mesh with each other.

Therefore, in actual use, the motor 25 drives the second gear 252 to rotate, thereby driving the first gear 261 to rotate, and at the same time, the first gear 261 rotates to drive the shaft 26 to rotate and drive the scraper 22 to rotate.

In addition, with two motors 25 located on both sides, the torque of the rotating shaft 26 of the present invention is relatively small compared to the single-sided motor 36, so the overall operation is relatively stable.

As shown in Figure 1, Figure 3 and Figure 8, the housing 1 is provided with a filter basket 5 for filtering residues, and the filter basket 5 is located on one side of the oil scraping assembly 2 and at the upper end of the separation chamber 16, while the filter basket 5 is connected to the inlet 12 Connected.

At the same time, the installation structure of the filter basket 5 is as follows: firstly, both sides of the filter basket 5 are provided with a connection table 51, and two connection frames 17 are arranged in the placement groove 11, so during installation, the connection table 51 is placed on the connection frame 17, And the other two sides of the filter basket 5 are provided with taking holes 52 for easy taking.

As shown in FIG. 2 and FIG. 3 , the structure of the separation chamber 16 , first, several separation chambers 16 are arranged in sequence from the inlet 12 to the outlet 13 , wherein the separation chamber 16 located in the middle includes a separation area 166 and an overflow area 167 , and is located at two The side separation chambers respectively include a separation area 166 and a drainage area 168 , and the two adjacent separation areas 166 communicate with each other through an overflow area 167 .

The separation area 166 is mainly used for oil-water separation, and the upper ends are provided with scraping discs 22 to scrape oil. The overflow area 167 mainly flows into the other separation areas 166 when the height of the liquid is higher than that of the separator 15, and the overflow area 167 mainly flows into the overflow area 167 from the bottom of the previous separation area 166, so it can be reduced to a certain extent. Oil content of the separated liquid.

At the same time, the separation area 166 and the overflow area 167 are formed. First, the plurality of partitions 15 include an upper partition 151 and a lower partition 152, and the lower partition 152 is located between two adjacent upper partitions 151. A separation cavity 16 is formed between the upper partition plate 151 and between the upper partition plate 151 and the side wall of the placement groove 11 , and the two sides of the lower partition plate 152 are respectively a separation area 166 and an overflow area 167 .

As shown in FIG. 2 and FIG. 3 , several separation chambers 16 are arranged in sequence. First, the plurality of separation chambers 16 include a first separation chamber 161 , a second separation chamber 162 , a third separation chamber 163 , a fourth separation chamber 164 and a The fifth separation chamber 165, and corresponding to the above structure, the first separation chamber 161 includes a separation area 166, and the second separation chamber 162, the third separation chamber 163 and the fourth separation chamber 164 include the separation area 166 and the overflow zone 167 , while the fifth separation chamber 165 includes a drain zone 168 .

The widths of the first separation chamber 161 and the third separation chamber 163 are larger than those of the other separation chambers, and the oil scraping assembly 2 covers the first separation chamber 161 , the second separation chamber 162 , the third separation chamber 163 and the fourth separation chamber 163 . The upper end of the separation chamber 164 .

At the same time, the number of scrapers 22 corresponding to the third separation chamber 163 is larger than that of the other separation chambers, and the number of scrapers 22 corresponding to the fourth separation chamber 164 is smaller than that of the other separation chambers.

And the setting of the upper width is designed according to the characteristics of sedimentation. The working principle of each separation chamber 16 is: first, the first separation chamber 161 close to the inlet 12 has a relatively wide width and a large volume, and the purpose is to reduce the flow rate of the incoming liquid; Secondly, the width of the second separation chamber 162 is relatively narrow, mainly to concentrate the liquid, which is conducive to rapid heating; then the width of the third separation chamber 163 is slightly wider, that is, the volume is slightly larger, mainly to reduce the liquid flow rate and further allow the oil droplets to float; When the fourth separation chamber 164 is reached, there is not much oil at this time, so the width is relatively narrow, that is, the space is relatively small, so that the liquid floats up and flows to the fifth separation chamber 165; and the fifth separation chamber 165 is used for final The discharge of liquid is the discharge of water after oil-water separation.

In addition, the number of scrapers 22 in different separation chambers 16 is set according to the amount of oil. Since the first separation chamber 161, the second separation chamber 162 and the third separation chamber 163 have a large amount of oil, the set At the same time, the maximum number of 163 third separation chambers is also to ensure the complete separation of oil and water.

The small number of the fourth separation chamber 164 is mainly due to the relatively small amount of oil in this chamber, while the fifth separation chamber 165 is not provided, because the front and the separation are completed, and the latter only needs to be discharged.

As shown in FIG. 3 , when the heating tube 4 is built in the separation chamber 16 , the first separation chamber 161 , the second separation chamber 162 and the third separation chamber 163 are all provided with the heating tube 4 , wherein the second separation chamber 162 The number of four heating tubes provided is greater than that of the first separation chamber 161 , and the number of four heating tubes provided in the first separation chamber 161 is greater than that of the third separation chamber 163 .

The different number of heating tubes 4 in different separation chambers 16 is determined according to the heat demand of the processing process. First, the first separation chamber 161 needs to be heated the most, but due to the large amount of scum in it, if the heating is too fast, it is easy to cause floating The slag forms a colloid and is not easy to separate, so here two heating tubes 4 are arranged horizontally; secondly, the second separation chamber 162 has relatively less scum, so it is vertically arranged in the narrow second separation chamber 162 There are three heating tubes 4, so that the oil droplets can be easily heated by rapid heating; then there is only one third separation chamber 163, because after the heating of the previous two separation chambers 16, the liquid temperature has risen to about 40 degrees Celsius, so it does not require much heating Power, as long as the temperature can be maintained.

As shown in Figures 1-2 and 4, a valve 7 is provided on one side of the casing 1 which communicates with the oil collecting tank, so as to discharge the collected waste oil.

At the same time, the other side of the housing 1 is provided with a control assembly 8 , and the control assembly 8 is connected with the oil scraping assembly 2 , the power supply and the heating pipe 4 and includes a switch 81 , a temperature time controller 82 and a button 83 .

The button 83 is used to control the start and stop of the motor 25 that drives the scraper 22, and the switch 81 is used to control whether the external power supply is connected, and the power supply is an external power supply, which is equivalent to a plug.

Moreover, the control assembly 8 also includes a rotary door 84 and a door lock 85, wherein the rotary door 84 is used to protect the switch 81, the temperature time controller 82 and the button 83, and a door lock 85 is provided on one side of the rotary door 84, and the door lock 85 Rotary locks can be used to facilitate the opening and locking of the door, and facilitate maintenance and avoid accidents caused by unauthorized opening by non-workers.

At the same time, the bottom of the casing 1 is provided with casters 9 that are easy to move, so as to facilitate the movement of the water purification equipment, and the water purification equipment also includes a cover 10, and the cover 10 covers the opening of the casing 1 to protect the internal structure, while the casing 1 and the The lids 10 are snap-connected, so they can be opened for easy maintenance.

The above-mentioned embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore: all equivalent changes made according to the structure, shape and principle of the present invention shall be covered by the present invention. within the scope of protection of the utility model.

Claims

A kind of water purification equipment which is convenient for oil-water separation, is characterized in that: comprises:

The casing (1) has a placement groove (11) formed in a downward depression in its interior, and an inlet (12) and an outlet (13) communicating with the placement groove (11) are respectively provided on both sides of the casing (1), and are arranged on both sides of the casing (1). The placing groove (11) is provided with a plurality of partitions (15) so as to divide the placing groove (11) into a plurality of separation chambers (16);

An oil scraping assembly (2), comprising a mounting bracket (21) and a plurality of scrapers (22), the mounting bracket (21) is placed on the partition plate (15), and the scraper (22) is rotatably arranged on the mounting bracket (21), and the lower end of the scraper (22) passes through the mounting frame (21) and is exposed to scrape oil;

The oil collecting tank is arranged on one side of the oil scraping assembly (2) and is used for collecting the oil scraped by the scraping disc (22).
A water purification device convenient for oil-water separation according to claim 1, characterized in that: several heating pipes (4) for heating liquid are arranged in the separation chamber (16), thereby promoting oil-water separation.
A water purification device that is convenient for oil-water separation according to claim 1, characterized in that: the mounting frame (21) is provided with several scraper strip groups, and the scraper strip group comprises a scraper strip (23) and a scraper strip. Two strips (24) are provided, and the first scraper (23) and the second scraper (24) are respectively arranged on both sides of the scraper plate (22) to scrape the oil on the scraper plate (22).
A water purification device convenient for oil-water separation according to claim 1 or 3, characterized in that: the mounting bracket (21) is obliquely arranged on the partition plate (15) and faces downward at the end connected with the oil collecting tank A guide plate (211) is bent and arranged, and the guide plate (211) is placed on the upper end of the oil collecting tank;

A mounting plate (212) is bent downward at the end of the mounting bracket (21) away from the oil collecting tank, and the mounting plate (212) is bent inwardly and is provided with a connecting plate (213). The mounting plate (212) is connected to the placement groove (11) The side walls abut and the connecting plate (213) is placed on the partition (15).
A water purifying device that facilitates separation of oil and water according to claim 1 or 3, characterized in that: the oil scraping assembly (2) further comprises two motors (25), and a plurality of scraping discs (22) pass through the rotating shaft (26) connected, and a gear one (261) is provided on both sides of the rotating shaft (26);

Both motors (25) are provided with a drive shaft (251) and are arranged on the mounting frame (21), the drive shaft (251) is provided with a second gear (252), and the first gear (261) and the second gear (252) are provided on the drive shaft (251). 252) mesh with each other.
A water purification device convenient for oil-water separation according to claim 1, characterized in that: a filter basket (5) for filtering residues is arranged on the casing (1), and the filter basket (5) is located in the oil scraping assembly (2) one side is located at the upper end of the separation cavity (16), and the filter basket (5) is communicated with the inlet (12);

Both sides of the filter basket (5) are provided with a connecting table (51), and two connecting racks (17) are arranged in the placing groove (11), and the connecting table (51) is placed on the connecting rack (17). , and the other two sides of the filter basket (5) are provided with taking holes (52) for easy taking.
A water purification device convenient for oil-water separation according to claim 1 or 2 or 3 or 6, characterized in that: an oil collecting plate (6) is arranged in the placing groove (11), and the oil collecting plate (6) ) There are oil baffles (61) bent on both sides, the oil collecting plate (6) is inclined on the casing (1) and connected with the oil scraping assembly (2), and the oil collecting plate (6) is placed on the The oil collecting groove is arranged between the side walls of the groove (11).
A water purification device convenient for oil-water separation according to claim 1 or 2 or 3 or 6, characterized in that: a plurality of separation chambers (16) are arranged in sequence from the inlet (12) to the outlet (13), wherein the middle is located in the middle The separation chamber (16) includes a separation area (166) and an overflow area (167), and the separation chambers located on both sides respectively include a separation area (166) and a drainage area (168), and the two adjacent separation areas ( 166) communicated through the overflow area (167);

The plurality of partitions (15) include an upper partition (151) and a lower partition (152), and the lower partition (152) is located between two adjacent upper partitions (151), and the two adjacent upper partitions Between (151) and between the upper partition plate (151) and the side wall of the placement groove (11) is a separation cavity (16), and the two sides of the lower partition plate (152) are respectively a separation area (166) and an overflow area ( 167).
A water purification device convenient for oil-water separation according to claim 1 or 2 or 3 or 6, characterized in that: the plurality of separation chambers (16) comprise a first separation chamber (161) and a second separation chamber (162) , the third separation chamber (163), the fourth separation chamber (164) and the fifth separation chamber (165), wherein the width of the first separation chamber (161) and the third separation chamber (163) is larger than that of the other separation chambers width dimension, and the oil scraping assembly (2) covers the upper ends of the first separation chamber (161), the second separation chamber (162), the third separation chamber (163) and the fourth separation chamber (164);

The number of scrapers (22) corresponding to the third separation chamber (163) is greater than the number of scrapers (22) of other separation chambers, and the number of scrapers (22) corresponding to the fourth separation chamber (164) The number of scrapers (22) is smaller than that of other separation chambers;

Or/and, the first separation chamber (161), the second separation chamber (162) and the third separation chamber (163) are all provided with heating pipes (4), wherein the heating pipe (4) provided in the second separation chamber (162) The number of tubes (4) is greater than that of the first separation chamber (161), and the number of heating tubes (4) provided in the first separation chamber (161) is greater than that of the third separation chamber (163).
A water purification device convenient for oil-water separation according to claim 1 or 2 or 3 or 6, characterized in that: a valve (7) communicating with the oil collecting tank is provided on one side of the casing (1), The other side of the housing (1) is provided with a control assembly (8), and the control assembly (8) is connected with the oil scraping assembly (2), the power supply and the heating pipe (4) and includes a switch (81), a temperature and time controller (82) and button (83);

Or/and, the bottom of the casing (1) is provided with casters (9) which are convenient to move.