CN210933902U - Automatic control oil-water separation recycling integrated equipment capable of continuously working - Google Patents

Abstract

The utility model discloses an integrative equipment of automatic control oil-water separation resourceization that can continuous work, include: integrative equipment of water oil separating resourceful and PLC, integrative equipment of water oil separating resourceful includes: the jar body, axle and 2 filtration, at a jar internal fixation and be equipped with a first baffle, the other end of axle stretches out after passing this first baffle along first baffle place plane, the axle can rotate in first baffle, 2 filtration are located filter chamber and regeneration room respectively, be formed with uncovered and axle and pass from uncovered on first baffle and every filtration relative position, filtration plug up rather than relative uncovered and with lie in this uncovered axle dress admittedly, the motor drive axle is rotatory, each filtration enters into to another 1 space through on the first baffle rather than relative uncovered from 1 space when the axle is rotatory. The utility model discloses a to the oil-water separation that has the oily sewage of contamination, the water purification after the separation can recycle, and the grease after the separation can be concentrated and collected reuse.

Description

Automatic control oil-water separation and resource integration equipment that can work continuously

technical field

The utility model belongs to the technical field of oil-water separation, and in particular relates to an automatic control oil-water separation and resource utilization integrated equipment capable of continuous operation.

Background technique

Oily wastewater mainly comes from the extraction and processing of petroleum, the process of iron and steel smelting, and the discharge from the catering industry. Due to the increasingly strict protection of water resources and the improvement of wastewater discharge standards year by year, the treatment of such oily wastewater is becoming more and more difficult, and the cost continues to rise.

At present, air flotation, gravity separation, flocculation, filtration and other methods are mainly used in the treatment of oily sewage in China. Among them, the oil removal rate of air flotation and gravity separation is generally not more than 70%, and the efficiency is low and the floor space is large. The flocculation method has poor treatment effect on the free oil contained in the sewage, and additional flocculant needs to be added. After flocculation, a secondary filtration separation is required. The filtration method has a higher oil removal rate for oily sewage, but it has stricter requirements on the filter material, and the filtration effect of different filter materials is quite different. Quartz sand has the characteristics of high strength, high density and strong dirt-carrying capacity, but it is labor-intensive when loading and unloading fillers, and it is difficult to handle after adsorption. Walnut shell and fiber ball filter material has the advantages of light texture and good filtering effect, and has attracted the attention of researchers and producers. For example, in 2016, Wang Xiujun of CNOOC introduced the filtration effect of modified walnut shell filter materials, and in 2019, Yan Yuting of Liaohe Oilfield made relevant research on walnut shell filters. Tang Guangrong from CNOOC conducted research on modified fiber balls for advanced treatment of sewage in offshore oilfields. The research shows that modified fiber balls have good filtering effect.

The currently reported filtration methods and technologies all treat oily sewage as the three wastes, and many equipments are designed according to different fillers, such as the utility model patent CN208726837U, a filter with backwashing function is designed, such as CN208120905U reported A filter that is easy to filter and sterilize. CN208161112U reported a multi-stage fiber filter. These filters have a good filtering effect, but they all have two disadvantages: First, the backwashing process must be operated intermittently, that is, the backwashing can only be carried out after the filtration is suspended; after the grease. Crude oil, distillate oil, lubricating grease and edible oil contained in oily sewage are all valuable resources. If they can be effectively recovered, they can not only reduce pollution but also save energy through resource utilization.

SUMMARY OF THE INVENTION

In view of the deficiencies of the prior art, the purpose of this utility model is to provide an integrated oil-water separation and resource-recycling equipment for treating oily sewage, which integrates a filter (filter structure) and a regenerator into one, The filter material is regenerated while the oily sewage is filtered, and the oil released during the regeneration of the filter material can also be recycled.

Another object of the present utility model is to provide an integrated equipment for automatic control of oil-water separation and recycling. The oil-water separation and filter material regeneration of the integrated equipment for automatic control of oil-water separation and recycling can be continuously operated, automatically controlled, efficient and convenient, so that the filter can be adapted to In addition to production needs, it also has the functions of green renewable and waste oil recycling.

Another object of the present invention is to provide a method of using the above-mentioned automatic control oil-water separation and resource-recycling integrated equipment.

The purpose of this utility model is achieved through the following technical solutions.

An integrated oil-water separation and recycling equipment for treating oily sewage, comprising: a tank body, a shaft and two filter structures, a first partition is fixed in the tank body, and is used to separate the inside of the tank body into two filter structures. 2 spaces: a filter room and a regeneration room; one end of the shaft is fixedly mounted with a motor, and the other end extends through the first partition along the plane where the first partition is located, and the shaft is in the first partition. A baffle can be rotated, and the two filter structures are respectively located in the filter chamber and the regeneration chamber, wherein an opening is formed at the position opposite to each filter structure of the first baffle and the The shaft passes through the opening, the filter structure blocks the opening opposite to it and is fixedly mounted with the shaft located in the opening, the motor drives the shaft to rotate, and each of the shafts rotates when the shaft rotates. The filter structure enters from one of the spaces to the other of the spaces through the opening opposite to it on the first partition, so that the filter chamber and the regeneration chamber are each provided with one of the filter structures and The filter structure blocks the opening opposite to it; an oily sewage inlet is formed on the tank wall of the filter chamber above the filter structure, and the filter structure located in the filter chamber is used for filtering the oily sewage in the filter chamber, A clean water outlet is formed on the tank wall of the filter chamber below the filter structure, an oil overflow port is formed on the tank wall of the regeneration chamber above the filter structure, and an oil overflow port is formed on the tank wall of the regeneration chamber Cleaning water inlet.

In the above technical solution, two of the filtering structures are perpendicular to the axis.

In the above technical solution, the cross section of the inner wall of the tank body is circular, and the cross section of each filter structure is a semicircle.

In the above technical solution, each of the filtering structures is a half cylinder, and the filtering structures include: an upper filtering sieve plate serving as the top surface of the semi-cylindrical body, a lower filtering sieve plate serving as the bottom surface of the semi-cylindrical body, and The second partition plate located on the plane of the side surface of the semi-cylindrical body is filled with filter material between the upper filter sieve plate and the lower filter sieve plate.

In the above technical solution, the cambered surface of the filter structure is in contact with the inner wall of the tank body close to the cambered surface.

In the above technical solution, a first filler port is formed on the tank wall of the tank body opposite to the filter structure, a cover body is installed on the first filler port, and an arc surface of the semi-cylindrical body is formed with a A second packing port, rotating the shaft until the first packing port is opposite to the second packing port, is used for filling the filter material between the upper filter sieve plate and the lower filter sieve plate.

In the above technical solution, the shaft is vertically arranged on the center point of the cross section of the inner wall of the tank body, and the shaft is fixedly mounted with the second partitions of the two filter structures.

In the above technical solution, two filter structures are located on the same horizontal plane, and the two filter structures are connected to form a cylinder, and the length of the opening along the radial direction of the tank body is the same as the diameter of the inner wall of the tank body.

In the above technical solution, the two filter structures are located on different horizontal planes, and the length of the opening along the radial direction of the tank body is the same as the radius of the inner wall of the tank body.

In the above technical solution, a liquid level sensor is installed in the regeneration chamber above the filter structure to detect the liquid level of the cleaning water in the regeneration chamber.

In the above technical solution, a pressure sensor is installed in the filter chamber above the filter structure to detect the pressure in the filter chamber above the filter structure.

In the above technical solution, a first concentration detector is installed on the purified water outlet for detecting the concentration of oil or water in the liquid discharged from the purified water outlet.

In the above technical solution, the purified water outlet is communicated with the first discharge pipe, the oily sewage inlet is communicated with the second discharge pipe, one end of a return pipe is communicated with the purified water outlet, and the other end of the return pipe is communicated with the first discharge pipe. Connected with the oily sewage inlet, a first valve is installed on the first discharge pipe, a second valve is installed on the return pipe close to the clean water outlet, and a water pump is installed on the return pipe , a third valve is installed on the second discharge pipe, and a sixth valve is installed on the return pipe close to the oily sewage inlet.

In the above technical solution, a second concentration detector is installed on the oily sewage inlet for detecting the concentration of oil or water in the liquid passing through the oily sewage inlet.

In the above technical solution, a manhole is formed on the tank body.

In the above technical solution, a fourth valve is installed on the cleaning water inlet.

In the above technical solution, a fifth valve is installed on the oil overflow port.

In the above technical solution, vents are formed on the tank walls of the filter chamber and the regeneration chamber.

The integrated equipment for automatic control of oil-water separation and recycling includes: the integrated equipment for oil-water separation and recycling and a PLC, and the PLC controls the rotation of the motor.

In the above technical solution, two of the filtering structures are perpendicular to the axis.

In the above technical solution, the cross section of the inner wall of the tank body is circular, and the cross section of each filter structure is a semicircle.

In the above technical solution, each of the filtering structures is a half cylinder, and the filtering structures include: an upper filtering sieve plate serving as the top surface of the semi-cylindrical body, a lower filtering sieve plate serving as the bottom surface of the semi-cylindrical body, and The second partition plate located on the plane of the side surface of the semi-cylindrical body is filled with filter material between the upper filter sieve plate and the lower filter sieve plate.

In the above technical solution, the cambered surface of the filter structure is in contact with the inner wall of the tank body close to the cambered surface.

In the above technical solution, a first filler port is formed on the tank wall of the tank body opposite to the filter structure, a cover body is installed on the first filler port, and an arc surface of the semi-cylindrical body is formed with a A second packing port, rotating the shaft until the first packing port is opposite to the second packing port, is used for filling the filter material between the upper filter sieve plate and the lower filter sieve plate.

In the above technical solution, the shaft is vertically arranged on the center point of the cross section of the inner wall of the tank body, and the shaft is fixedly mounted with the second partitions of the two filter structures.

In the above technical solution, two filter structures are located on the same horizontal plane, and the two filter structures are connected to form a cylinder, and the length of the opening along the radial direction of the tank body is the same as the diameter of the inner wall of the tank body.

In the above technical solution, the two filter structures are located on different horizontal planes, and the length of the opening along the radial direction of the tank body is the same as the radius of the inner wall of the tank body.

In the above technical solution, a liquid level sensor is installed in the regeneration chamber above the filter structure to detect the liquid level of the cleaning water in the regeneration chamber, and the liquid level signal of the liquid level sensor is read by the PLC.

In the above technical solution, a pressure sensor is installed in the filter chamber above the filter structure to detect the pressure in the filter chamber above the filter structure, and the pressure signal of the pressure sensor is read by the PLC.

In the above technical solution, the purified water outlet is communicated with the first discharge pipe, the oily sewage inlet is communicated with the second discharge pipe, one end of a return pipe is communicated with the purified water outlet, and the other end of the return pipe is communicated with the first discharge pipe. Connected with the oily sewage inlet, a first valve is installed on the first discharge pipe, a second valve is installed on the return pipe close to the clean water outlet, and a water pump is installed on the return pipe , a third valve is installed on the second discharge pipe, a sixth valve is installed on the return pipe close to the oily sewage inlet, and the PLC controls the first valve, the third valve, the sixth valve The opening and closing of the valve and the second valve, the PLC controls the opening and closing of the water pump.

In the above technical solution, a first concentration detector is installed on the purified water outlet to detect the concentration of oil or water in the liquid discharged from the purified water outlet, and the concentration signal of the first concentration detector is used by the PLC read.

In the above technical solution, a second concentration detector is installed on the oily sewage inlet to detect the concentration of oil or water in the liquid passing through the oily sewage inlet, and the concentration signal of the second concentration detector is used by the PLC. read.

In the above technical solution, a fourth valve is installed on the cleaning water inlet, and the PLC controls the opening and closing of the fourth valve.

In the above technical solution, a fifth valve is installed on the oil overflow port, and the PLC controls the opening and closing of the fifth valve.

In the above technical solution, an alarm module is further included, and the PLC drives the alarm module to alarm.

In the above technical solution, vents are formed on the tank walls of the filter chamber and the regeneration chamber.

In the above technical solution, a manhole is formed on the tank body.

The use method of automatic control oil-water separation and resource integration equipment includes the following steps:

The rotation of the motor is controlled by the PLC, so that each of the filter chamber and the regeneration chamber is provided with one of the filter structures, and the washing water is introduced into the regeneration chamber through the washing water inlet, and the liquid level of the washing water is higher than that of the regeneration chamber. To regenerate the filter structure in the chamber, repeat the following filter steps:

The oily sewage is introduced into the filter chamber through the oily sewage inlet, and the oily sewage is filtered into clean water after passing through the filter structure and discharged from the clean water outlet. When the filter structure in the filter chamber needs to be replaced, the PLC Control the motor to drive the shaft to rotate 180°, so that the filter chamber and the regeneration chamber exchange the filter structure, soak the filter structure in the regeneration chamber with cleaning water, so that the liquid oil in the filter structure in the regeneration chamber is leached out to the level of the cleaning water in the regeneration chamber.

In the above technical solution, when the thickness of the liquid oil on the liquid surface of the cleaning water in the regeneration chamber increases until the height of the liquid oil reaches the oil overflow port, the liquid oil overflows from the oil overflow port.

In the above technical solution, a fifth valve is installed on the oil overflow port, and the PLC controls the opening and closing of the fifth valve.

In the above technical solution, a fourth valve is installed on the cleaning water inlet. When cleaning water needs to be introduced into the regeneration chamber through the cleaning water inlet, the PLC controls the fourth valve to open; When cleaning water is introduced into the regeneration chamber, the PLC controls the fourth valve to close.

In the above technical solution, the purified water outlet is communicated with the first discharge pipe, the oily sewage inlet is communicated with the second discharge pipe, one end of a return pipe is communicated with the purified water outlet, and the other end of the return pipe is communicated with the first discharge pipe. Connected with the oily sewage inlet, a first valve is installed on the first discharge pipe, a second valve is installed on the return pipe close to the clean water outlet, and a water pump is installed on the return pipe , a third valve is installed on the second discharge pipe, a sixth valve is installed on the return pipe close to the oily sewage inlet, and the PLC controls the first valve, the third valve, the sixth valve The opening and closing of the valve and the second valve, the PLC controls the opening and closing of the water pump.

In the above technical solution, in the filtering step, before the oily sewage is introduced into the filtering chamber, the PLC controls the first valve and the third valve to open, and the PLC controls the sixth valve and the second valve closure.

In the above technical solution, a liquid level sensor is installed in the regeneration chamber above the filter structure to detect the liquid level of the cleaning water in the regeneration chamber, and the liquid level signal of the liquid level sensor is read by the PLC and sent to all The PLC sets a critical liquid level value L0, and the critical liquid level value L0 is higher than the height of the filter structure in the regeneration chamber and lower than the oil overflow port (5). When washing water, the PLC reads the liquid level signal of the liquid level sensor, and when the liquid level of the liquid level signal reaches the critical liquid level value L0, the PLC controls the fourth valve to close.

In the above technical solution, an alarm module is further included, and when the liquid level signal of the liquid level sensor reaches the critical liquid level value L0, the PLC controls the alarm module to give an alarm.

In the above technical solution, a first concentration detector is installed on the purified water outlet to detect the concentration of oil or water in the liquid discharged from the purified water outlet, and the concentration signal of the first concentration detector is used by the PLC Read; set a critical concentration C0 to the PLC, when the oil concentration value obtained after the PLC reads the concentration signal of the first concentration detector is higher than the oil concentration value of the critical concentration C0, the PLC Control the first valve and the third valve to be closed and the sixth valve, the second valve and the water pump to open, and determine that the filter structure in the filter chamber needs to be replaced; a second concentration detector is installed on the oily sewage inlet , used to detect the concentration of oil or water in the inlet liquid of the oily sewage, the concentration signal of the second concentration detector is read by the PLC; when the PLC reads the concentration signal of the second concentration detector When the obtained oil concentration value is less than the oil concentration value of the critical concentration C0, the PLC controls the first valve and the third valve to open and the sixth valve, the second valve and the water pump to close.

In the above technical solution, ventilation ports are formed on the tank walls of the filter chamber and the regeneration chamber. Before the filtering step, the ventilation ports of the filter chamber are opened, and cleaning water is introduced into the regeneration chamber. before opening the vent of the regeneration chamber.

In the above technical solution, a pressure sensor is installed in the filter chamber above the filter structure to detect the pressure in the filter chamber above the filter structure, and the pressure signal of the pressure sensor is read by the PLC and sent to the PLC A critical pressure P0 is set, and when the pressure value of the pressure signal of the pressure sensor read by the PLC is greater than the critical pressure P0, the PLC determines that the filter structure in the filter chamber needs to be replaced.

The beneficial effects of the present utility model are as follows:

The utility model realizes the oil-water separation of polluting oil-containing sewage, the separated purified water can be recycled, and the separated grease (liquid oil) can be collected and reused. Because the filter material is a renewable filter material, it can be recycled, so no three wastes are generated, and zero discharge and resource utilization of oily sewage are realized.

Description of drawings

Fig. 1 is the front view of the integrated equipment of oil-water separation and recycling of the present utility model (automatic control of the integrated equipment of oil-water separation and recycling);

Fig. 2 is the front view of the integrated equipment for oil-water separation and recycling of the present utility model (automatic control of the integrated equipment for oil-water separation and recycling);

Figure 3 is a top view of the two filter structures in Figure 1 (fixed with the shaft);

Figure 4 is a top view of a filter structure (fixed with the shaft);

Fig. 5 is the side view of the first separator in Fig. 1;

Fig. 6 is the side view of the first separator in Fig. 2;

Figure 7 shows the water samples before and after treatment by the integrated oil-water separation and recycling equipment of the present invention.

Among them, 1: tank body, 2: shaft, 3: first separator, 4: oily sewage inlet, 5: oil overflow port, 6: manhole, 7: first filling port, 8: purified water outlet, 9 : Return pipe, 10: Water pump, 11: Cleaning water inlet, 12: Motor, 13: Bearing, 14: Upper filter sieve, 15: Lower filter sieve, 16: Third valve, 17: First valve, 18: Second valve, 19: Sixth valve, 20: Fifth valve, 21: Fourth valve, 22: Filter material, 23: Second separator, 24: Second discharge pipe, 25: First discharge pipe, 26: vent.

Detailed ways

The technical solutions of the present utility model are further described below in conjunction with specific embodiments.

In the following embodiments, the model of the liquid level sensor is HM21F, the model of the pressure sensor is AK-2088, and the model of the first concentration detector and the second concentration detector are DHP-485. The model of the PLC is AX3U-80MT.

Example 1

An integrated equipment for oil-water separation and resource utilization for treating oily sewage, comprising: a tank body 1, a shaft 2 and two filter structures, a first partition 3 is fixed in the tank body 1, which is used to separate the inside of the tank body 1. Divided into two spaces: a filter room and a regeneration room; one end of the shaft 2 is fixedly mounted with a motor 12, and the other end extends through the first partition 3 along the plane where the first partition 3 is located, and a bearing 13 ( The bearing 13 can also not be installed, the shaft 2 can rotate in the first partition plate 3, and the two filter structures are respectively located in the filter chamber and the regeneration chamber, wherein, the first partition plate 3 is formed at the position opposite to each filter structure. There is an opening and the shaft 2 passes through the opening, and one end of the filter structure extends into the opening and is fixed with the shaft 2 located in the opening (one end of the filter structure extends into the opening so that the filter structure blocks the opening ), the motor 12 drives the shaft 2 to rotate, and when the shaft 2 rotates, each filter structure enters from one space to another space through the opening opposite to it on the first partition 3 and the filter structure blocks the opening opposite to it, So that the filter chamber and the regeneration chamber are each provided with a filter structure; an oily sewage inlet 4 is formed on the tank wall of the filter chamber above the filter structure, and the filter structure located in the filter chamber is used to filter the oily sewage in the filter chamber, A clean water outlet 8 is formed on the tank wall of the filter chamber below the filter structure, an oil overflow port 5 is formed on the tank wall of the regeneration chamber above the filter structure, and a cleaning water inlet 11 is formed on the tank wall of the regeneration chamber , as a preference, the cleaning water inlet 11 is located below the filter structure in the regeneration chamber.

Example 2

On the basis of Example 1, the two filter structures are perpendicular to the axis 2 . The cross section of the inner wall of the tank body 1 is circular, and the cross section of each filter structure is a semicircle, as shown in FIG. 4 . Each filter structure is a half cylinder, and the filter structure includes: an upper filter sieve plate 14 as the top surface of the half cylinder, a lower filter sieve plate 15 as the bottom surface of the half cylinder, and a second partition located on the plane of the side surface of the half cylinder Plate 23 (the arc surface of the filter structure can be a closed surface or an open surface), a plurality of small holes are formed on the upper filter sieve plate 14 and the lower filter sieve plate 15, between the upper filter sieve plate 14 and the lower filter sieve plate 15. The space is filled with filter material 22, and the filter material 22 is a material that can be released by soaking the adsorbed oil. For example, the filter material 22 can be a fiber ball filter filler (Patent Publication No.: CN109453562A). The arc surface of the filter structure is in contact with the inner wall of the tank body 1 which is close to the arc surface. Preferably, the edges of the upper filter sieve plate 14 and the lower filter sieve plate 15 that are in contact with the inner wall of the tank body 1 are respectively fixed with a soft sealing material, which is used to improve the sealing effect between the edge of the filter structure and the inner wall of the tank body 1. After the sealing effect, the filtering effect of the filtering structure can be improved.

A first packing port 7 is formed on the tank wall of the tank body 1 opposite to the filter structure. The first packing port 7 is preferably located on the tank wall of the regeneration chamber. A cover is installed on the first packing port 7. A second filling port is formed on the arc surface of the filter structure (when the arc surface of the filter structure is an open surface, the open surface is the second packing port), and the rotating shaft 2 to the first packing port 7 is opposite to the second packing port, used for The filter material 22 is filled between the upper filter sieve 14 and the lower filter sieve 15 .

The shaft 2 is vertically arranged on the center point of the cross section of the inner wall of the tank body 1 , and the shaft 2 is fixedly mounted with the second partitions 23 of the two filter structures.

A liquid level sensor is installed in the regeneration chamber above the filter structure to detect the liquid level of the cleaning water in the regeneration chamber to prevent the cleaning water from overflowing to the oil overflow port due to the high liquid level.

A pressure sensor is installed in the filter chamber above the filter structure to detect the pressure in the filter chamber above the filter structure and prevent the pressure in the filter chamber from exceeding the set value.

A first concentration detector is installed on the purified water outlet 8 for detecting the concentration of oil or water in the liquid discharged from the purified water outlet 8 .

The clean water outlet 8 is communicated with the first discharge pipe 25, the oily sewage inlet 4 is communicated with the second discharge pipe 24, one end of a return pipe 9 is communicated with the clean water outlet 8, and the other end of the return pipe 9 is communicated with the oily sewage inlet 4, The first valve 17 is installed on the first discharge pipe 25 , the second valve 18 is installed on the return pipe 9 close to the clean water outlet 8 , the water pump 10 is installed on the return pipe 9 , and the second discharge pipe 24 is installed There is a third valve 16 , and a sixth valve 19 is installed on the return pipe 9 near the oily sewage inlet 4 .

A second concentration detector is installed on the oily sewage inlet 4 for detecting the concentration of oil or water in the liquid passing through the oily sewage inlet 4 .

There are two manholes 6 formed on the tank body 1 , as shown in FIG. 1 , and they are respectively located on opposite sides of the tank body 1 .

A fourth valve 21 is installed on the washing water inlet 11 .

A fifth valve 20 is installed on the oil overflow port 5 .

Air vents 26 are formed on the tank walls of both the filter chamber and the regeneration chamber.

Example 3

As shown in Figures 1 and 3, on the basis of Example 2, two filter structures are located on the same horizontal plane, and the two filter structures are connected to form a cylinder, and the length of the opening along the radial direction of the tank body 1 is the same as that of the tank body 1. The diameter of the inner wall is the same, and the first separator is shown in Figure 5. The shaft 2 passes through the opening and is located on the centerline of the opening. The size of the opening on the first partition is the same as the size of the plane on which the filter structure is located on the side.

Example 4

As shown in Figure 2, on the basis of Example 2, the two filter structures are located on different horizontal planes, and the length of the opening along the radial direction of the tank body 1 is the same as the radius of the inner wall of the tank body 1. The first partition is shown in the figure 6 shown. Half of the shaft 2 (divided radially of the shaft 2 to form 2 said "shaft halves") passes through the opening. The size of the opening on the first partition is half of the plane on which the filter structure is located on the side.

Example 5

The integrated equipment for automatic control of oil-water separation and recycling includes: the integrated equipment for agricultural oil-water separation and recycling in Example 1 and a PLC, and the PLC controls the rotation of the motor 12 .

Example 6

On the basis of Example 5, the two filter structures are perpendicular to the axis 2 .

The cross section of the inner wall of the tank body 1 is circular, and the cross section of each filter structure is a semicircle.

Each filter structure is a half cylinder, and the filter structure includes: an upper filter sieve plate 14 as the top surface of the half cylinder, a lower filter sieve plate 15 as the bottom surface of the half cylinder, and a second partition located on the plane of the side surface of the half cylinder Plate 23 (the arc surface of the filter structure can be a closed surface or an open surface), a plurality of small holes are formed on the upper filter sieve plate 14 and the lower filter sieve plate 15, between the upper filter sieve plate 14 and the lower filter sieve plate 15. A filter material 22 is filled in the space, and the filter material 22 can be a fiber ball filter filler (Patent Publication No. CN109453562A).

The arc surface of the filter structure is in contact with the inner wall of the tank body 1 which is close to the arc surface. Preferably, the edges of the upper filter sieve plate 14 and the lower filter sieve plate 15 in contact with the inner wall of the tank body 1 are respectively fixed with soft sealing materials to improve the sealing effect between the edge of the filter structure and the inner wall of the tank body 1, and then Improve the filtering effect of the filtering structure.

A first packing port 7 is formed on the tank wall of the tank body 1 opposite to the filter structure. The first packing port 7 is preferably located on the tank wall of the regeneration chamber. A cover is installed on the first packing port 7. A second packing port is formed on the arc surface of the filter structure (when the arc surface of the filter structure is an open surface, the open surface is the second packing port), and the rotating shaft 2 to the first packing port 7 is opposite to the second packing port for upward A filter material 22 is filled between the filter screen 14 and the lower filter screen 15 .

The shaft 2 is vertically arranged on the center point of the cross section of the inner wall of the tank body 1 , and the shaft 2 is fixedly mounted with the second partitions 23 of the two filter structures.

A liquid level sensor is installed in the regeneration chamber above the filter structure to detect the liquid level of the cleaning water in the regeneration chamber to prevent the cleaning water from overflowing to the oil overflow port due to the high liquid level. The liquid level signal of the liquid level sensor is read by the PLC .

A pressure sensor is installed in the filter chamber above the filter structure to detect the pressure when the filter chamber above the filter structure is filled with oily sewage, to prevent the pressure in the filter chamber from exceeding the set value, and the pressure signal of the pressure sensor is read by the PLC.

The clean water outlet 8 is communicated with the first discharge pipe 25, the oily sewage inlet 4 is communicated with the second discharge pipe 24, one end of a return pipe 9 is communicated with the clean water outlet 8, and the other end of the return pipe 9 is communicated with the oily sewage inlet 4, The first valve 17 is installed on the first discharge pipe 25 , the second valve 18 is installed on the return pipe 9 close to the clean water outlet 8 , the water pump 10 is installed on the return pipe 9 , and the second discharge pipe 24 is installed There is a third valve 16, a sixth valve 19 is installed on the return pipe 9 near the oily sewage inlet 4, and the PLC controls the opening and closing of the first valve 17, the third valve 16, the sixth valve 19 and the second valve 18, The PLC controls the opening and closing of the water pump 10 .

A first concentration detector is installed on the purified water outlet 8 for detecting the concentration of oil or water in the liquid discharged from the purified water outlet 8, and the concentration signal of the first concentration detector is read by the PLC.

A second concentration detector is installed on the oily sewage inlet 4 for detecting the concentration of oil or water in the liquid passing through the oily sewage inlet 4, and the concentration signal of the second concentration detector is read by the PLC.

A fourth valve 21 is installed on the cleaning water inlet 11 , and the PLC controls the opening and closing of the fourth valve 21 .

A fifth valve 20 is installed on the oil overflow port 5 , and the PLC controls the opening and closing of the fifth valve 20 .

It also includes: an alarm module, the PLC drives the alarm module to alarm, and the alarm module can alarm by sound and light and display the relevant reasons when it alarms.

Air vents 26 are formed on the tank walls of both the filter chamber and the regeneration chamber.

There are two manholes 6 formed on the tank body 1 , as shown in FIG. 1 .

Example 7

As shown in FIG. 1 , on the basis of Example 6, two filter structures are located on the same horizontal plane, and the two filter structures are connected to form a cylinder, and the length of the opening along the radial direction of the tank body 1 is the same as the inner wall of the tank body 1 . The diameters are the same, as shown in Figure 1, and the first separator is shown in Figure 5. The shaft 2 passes through the opening and is located on the centerline of the opening. The size of the opening on the first partition is the same as the size of the plane on which the filter structure is located on the side.

Example 8

As shown in Figure 2, on the basis of Example 6, the two filter structures are located on different horizontal planes, and the length of the opening along the radial direction of the tank body 1 is the same as the radius of the inner wall of the tank body 1, as shown in Figure 2, The first separator is shown in FIG. 6 . Half of the shaft 2 (divided radially of the shaft 2 to form 2 said "shaft halves") passes through the opening. The size of the opening on the first partition is half of the plane on which the filter structure is located on the side.

Example 9

The use method of automatic control oil-water separation and resource utilization integrated equipment in embodiment 5, comprises the following steps:

The rotation of the motor 12 is controlled by the PLC, so that each of the filter chamber and the regeneration chamber is provided with a filter structure, and the washing water is introduced into the regeneration chamber through the washing water inlet 11, and the liquid level of the washing water is higher than the filter structure in the regeneration chamber, repeat the following Filter steps:

The oily sewage is introduced into the filter chamber through the oily sewage inlet 4. The oily sewage is filtered into clean water after passing through the filter structure and discharged from the clean water outlet 8. When the filter structure in the filter chamber needs to be replaced, the motor 12 is controlled by PLC to drive the shaft. 2 Rotate 180° to exchange the filter structure between the filter chamber and the regeneration chamber, soak the filter structure in the regeneration chamber with cleaning water, so that the liquid oil in the filter structure in the regeneration chamber is leached to the liquid level of the cleaning water in the regeneration chamber, thereby recovering The filtering capacity of the filtering structure.

Although the second partition fixed in the filter structure can isolate the liquid in the filter chamber and the regeneration chamber, during the rotation of the filter structure, a small amount of purified water will still enter the regeneration chamber through the filter material in the filter structure , however, tests have shown that this does not affect the regeneration process of the regeneration chamber.

Example 10

On the basis of Example 9, when the thickness of the liquid oil on the liquid surface of the cleaning water in the regeneration chamber increases until the height of the liquid oil reaches the oil overflow port 5 , the liquid oil overflows from the oil overflow port 5 .

A fifth valve 20 is installed on the oil overflow port 5 , and the PLC controls the opening and closing of the fifth valve 20 .

A fourth valve 21 is installed on the cleaning water inlet 11. When cleaning water needs to be introduced into the regeneration chamber through the cleaning water inlet 11, the PLC controls the fourth valve 21 to open; when the cleaning water is stopped flowing into the regeneration chamber, the PLC The fourth valve 21 is controlled to be closed.

The clean water outlet 8 is communicated with the first discharge pipe 25, the oily sewage inlet 4 is communicated with the second discharge pipe 24, one end of a return pipe 9 is communicated with the clean water outlet 8, and the other end of the return pipe 9 is communicated with the oily sewage inlet 4, The first valve 17 is installed on the first discharge pipe 25 , the second valve 18 is installed on the return pipe 9 close to the clean water outlet 8 , the water pump 10 is installed on the return pipe 9 , and the second discharge pipe 24 is installed There is a third valve 16, a sixth valve 19 is installed on the return pipe 9 near the oily sewage inlet 4, and the PLC controls the opening and closing of the first valve 17, the third valve 16, the sixth valve 19 and the second valve 18, The PLC controls the opening and closing of the water pump 10 .

In the filtering step, before the oily sewage is introduced into the filter chamber, the PLC controls the first valve 17 and the third valve 16 to open, and the PLC controls the sixth valve 19 and the second valve 18 to close (the water pump 10 is closed at this time).

A liquid level sensor is installed in the regeneration chamber above the filter structure to detect the liquid level of the cleaning water in the regeneration chamber. The liquid level signal of the liquid level sensor is read by the PLC, and a critical liquid level value L0 is set to the PLC. The value L0 is higher than the height of the filter structure in the regeneration chamber and lower than the oil overflow port 5. When the cleaning water is introduced into the regeneration chamber through the cleaning water inlet 11, the PLC reads the liquid level of the liquid level sensor every 0.1~10s. signal, when the liquid level of the liquid level signal reaches the critical liquid level value L0 for two consecutive times, the PLC controls the fourth valve 21 to close.

It also includes: an alarm module, when the liquid height signal of the liquid level sensor reaches the critical liquid level value L0, the PLC controls the alarm module to give an alarm.

A first concentration detector is installed on the purified water outlet 8 to detect the concentration of oil or water in the liquid discharged from the purified water outlet 8, and the concentration signal of the first concentration detector is read by the PLC; a critical concentration is set to the PLC C0, when the oil concentration value obtained after the PLC reads the concentration signal of the first concentration detector for 1 to 5 times in a row is higher than the oil concentration value of the critical concentration C0, the PLC controls the first valve 17 and the third valve 16 to close and The sixth valve 19, the second valve 18 and the water pump 10 are opened and it is determined that the filter structure in the filter chamber needs to be replaced. The PLC reads the density signal of the first density detector every 0.1-30s. The first valve 17 and the third valve 16 are closed and the sixth valve 19, the second valve 18 and the water pump 10 are opened, so that the liquid passing through the filter structure can be re-injected back to the top of the filter structure, and filtered by the filter structure again (ie, internal circulation). ).

A second concentration detector is installed on the oily sewage inlet 4 to detect the concentration of oil or water in the liquid passing through the oily sewage inlet 4. The concentration signal of the second concentration detector is read by the PLC; when the PLC continues for 1 to 5 times When the oil concentration value obtained after reading the concentration signal of the second concentration detector is less than the oil concentration value of the critical concentration C0, the PLC controls the first valve 17 and the third valve 16 to open and the sixth valve 19, the second valve 18 and the water pump 10 off. The PLC reads the concentration signal of the second concentration detector every 0.1-30s.

Ventilation ports 26 are formed on the tank walls of both the filter chamber and the regeneration chamber. Before the filtering step, the ventilation ports 26 of the filter chamber are opened, and before the cleaning water is introduced into the regeneration chamber, the ventilation ports 26 of the regeneration chamber are opened.

A pressure sensor is installed in the filter chamber above the filter structure to detect the pressure in the filter chamber above the filter structure. The pressure signal of the pressure sensor is read by the PLC, and a critical pressure P0 is set to the PLC. When the PLC continues for 1 to 5 times When the pressure value of the pressure signal read from the pressure sensor is greater than the critical pressure P0, the PLC determines that the filter structure in the filter chamber needs to be replaced. The PLC reads the pressure signal of the pressure sensor every 0.1~30.

For an example of oily sewage treatment in a section of a refinery, according to the incoming water conditions and process requirements, first set the critical concentration value C0 through PLC, and set it to 5mg/L; set the critical pressure P0 to 0.35MPa, and set the critical value of the liquid level. L0 is 1.0m; set the PLC to read the values of the first concentration detector and the second concentration detector every 3s. The oily sewage is introduced into the filter chamber through the oily sewage inlet 4. The second concentration detector detects that the oil content of the oily sewage fluctuates in a small range of 46-53 mg/L. After the oily sewage passes through the filter structure, it becomes clear water. , the first concentration detector detects that the oil content in the purified water passing through the purified water outlet 8 is 1-1.5 mg/L (the detection result fluctuates slightly at 1-1.5 mg/L). When the PLC reads the concentration of the first concentration detector three times in a row and the concentration is greater than 5.0mg/L, it is after 22 hours of continuous operation of the oil-water separation and resource integration equipment and the value detected by the first concentration detector is 5.1mg. /L, the PLC controls the first valve 17 and the third valve 16 to close and the sixth valve 19, the second valve 18 and the water pump 10 to open for internal circulation. At the same time, the PLC controls the motor 12 to drive the shaft 2 to rotate 180°, so that the The filter chamber and the regeneration chamber exchange the filter structure, that is, the new filter structure (the filter structure without oil adsorption) is rotated into the filter chamber, and the filter structure that absorbs the oil is rotated into the regeneration chamber and soaked in the regeneration chamber, and the regeneration chamber can be filtered by soaking. The liquid oil in the structure is leached to the surface of the cleaning water in the regeneration chamber. When the filter chamber and the regeneration chamber exchange the filter structure, the second concentration detector quickly detects that the concentration value is less than 5.0mg/L; when the PLC reads the concentration signal of the second concentration detector three times in a row, the concentration value is less than 5.0mg/L Afterwards, the PLC controls the first valve 17 and the third valve 16 to open and the sixth valve 19, the second valve 18 and the water pump 10 to close. The above process completes an automatic replacement cycle for the oil-water separation and resource integration equipment. After the above process was performed 10 times, 30kg of regenerated oil was collected from the oil overflow port. In Figure 7, the left bottle contains oily sewage that is input to the oily sewage inlet, and the right bottle contains clean water that is discharged from the clean water outlet.

The present invention has been exemplarily described above. It should be noted that, without departing from the core of the present invention, any simple deformations, modifications or other equivalent replacements that can be performed by those skilled in the art without any creative effort will fall into place. into the protection scope of the present invention.

Claims (10)

1. An integrated equipment for automatic control of oil-water separation and recycling, characterized in that it comprises: oil-water separation and recycling-integrated equipment and PLC, and the oil-water separation and recycling-integrated equipment comprises: tank (1), shaft (2) and 2 A filter structure, a first partition plate (3) is fixed in the tank body (1), which is used to divide the interior of the tank body (1) into two spaces: a filter room and a regeneration room; the shaft One end of (2) is fixedly mounted with a motor (12), and the other end extends through the first partition (3) along the plane where the first partition (3) is located, and the PLC controls the motor ( 12) Rotation, the shaft (2) can be rotated in the first partition plate (3), and the two filter structures are respectively located in the filter chamber and the regeneration chamber, wherein, in the first partition plate ( 3) An opening is formed at a position opposite to each of the filter structures and the shaft (2) passes through the opening, the filter structure blocks the opening opposite to it and communicates with the opening located in the opening; The shaft (2) is fixedly installed, and the motor (12) drives the shaft (2) to rotate. When the shaft (2) rotates, each of the filter structures passes through the opposite to it on the first partition plate (3). The openings enter from one of the spaces to the other of the spaces, so that each of the filter chamber and the regeneration chamber is provided with one of the filter structures and the filter structures block the openings opposite to them; An oily sewage inlet (4) is formed on the tank wall of the filter chamber above the filter structure, the filter structure located in the filter chamber is used to filter the oily sewage in the filter chamber, and the filter chamber below the filter structure A clean water outlet (8) is formed on the tank wall of the filter structure, an oil overflow port (5) is formed on the tank wall of the regeneration chamber above the filter structure, and a cleaning water inlet is formed on the tank wall of the regeneration chamber. (11). 2. The integrated equipment for automatic control of oil-water separation and recycling according to claim 1, characterized in that, two of the filter structures are perpendicular to the shaft (2); the cross-section of the inner wall of the tank body (1) is circular, the cross section of each filter structure is a semicircle, each of the filter structures is a half cylinder, and the filter structure includes: an upper filter screen plate (14) as the top surface of the half cylinder, The lower filter sieve plate (15) as the bottom surface of the semi-cylindrical body and the second partition plate (23) located on the plane of the side surface of the semi-cylindrical body, in the upper filter sieve plate (14) and the lower filter sieve plate A filter material (22) is filled between (15), and the arc surface of the filter structure is in contact with the inner wall of the tank body (1) close to the arc surface. 3. The integrated equipment for automatic control of oil-water separation and recycling according to claim 2, characterized in that a first filling port (7) is formed on the tank wall of the tank body (1) opposite to the filter structure , a cover body is installed on the first packing port (7), a second packing port is formed on the arc surface of the semi-cylindrical body, and the shaft (2) is rotated to the first packing port (7) and the The second filling ports are opposite to each other, and are used to fill the filter material (22) between the upper filter sieve plate (14) and the lower filter sieve plate (15); the shaft (2) is vertically arranged on the On the center point of the cross section of the inner wall of the tank body (1), the shaft (2) is fixedly mounted with the second partitions (23) of the two filter structures. 4. The integrated equipment for automatic control of oil-water separation and resource utilization according to claim 3, characterized in that, two filter structures are located on the same horizontal plane and the two filter structures are connected to form a cylinder, and the opening is along the tank body (1). ) in the radial direction is the same as the diameter of the inner wall of the tank (1). 5. The integrated equipment for automatic control of oil-water separation and resource utilization according to claim 3, wherein the two filter structures are located on different horizontal planes, and the length of the opening along the radial direction of the tank body (1) is the same as that of the tank body (1). 1) The radius of the inner wall is the same. 6. The integrated equipment for automatic control of oil-water separation and recycling according to claim 4 or 5, wherein a liquid level sensor is installed in the regeneration chamber above the filter structure to detect the liquid level of the cleaning water in the regeneration chamber, The liquid height signal of the liquid level sensor is read by the PLC; a pressure sensor is installed in the filter chamber above the filter structure to detect the pressure in the filter chamber above the filter structure, and the pressure signal of the pressure sensor is The PLC reads. 7. The integrated equipment for automatic control of oil-water separation and recycling according to claim 6, characterized in that, the water purification outlet (8) is communicated with the first discharge pipe (25), and the oily sewage inlet (4) is connected with the first discharge pipe (25). Two discharge pipes (24) are communicated, one end of a return pipe (9) is communicated with the purified water outlet (8), and the other end of the return pipe (9) is communicated with the oily sewage inlet (4). A first valve (17) is installed on the first discharge pipe (25), a second valve (18) is installed on the return pipe (9) close to the clean water outlet (8), and a second valve (18) is installed on the return pipe (9) near the clean water outlet (8). A water pump (10) is installed on the water pipe (9), a third valve (16) is installed on the second discharge pipe (24), and the return pipe (9) close to the oily sewage inlet (4) A sixth valve (19) is installed on it, and the PLC controls the opening and closing of the first valve (17), the third valve (16), the sixth valve (19) and the second valve (18). The PLC controls the opening and closing of the water pump (10). 8. The integrated equipment for automatic control of oil-water separation and recycling according to claim 7, characterized in that, a first concentration detector is installed on the purified water outlet (8), for detecting the flow from the purified water outlet (8). 8) The concentration of oil or water in the discharged liquid, the concentration signal of the first concentration detector is read by the PLC. 9. The integrated equipment for automatic control of oil-water separation and recycling according to claim 8, characterized in that, a second concentration detector is installed on the oily sewage inlet (4) for detecting the oily sewage inlet (4). 4) The concentration of oil or water in the liquid, the concentration signal of the second concentration detector is read by the PLC. 10. The integrated equipment for automatic control of oil-water separation and recycling according to claim 9, characterized in that, a fourth valve (21) is installed on the cleaning water inlet (11), and the PLC controls the fourth valve ( 21) opening and closing; a fifth valve (20) is installed on the oil overflow port (5), the PLC controls the opening and closing of the fifth valve (20), and also includes: an alarm module, the The PLC drives the alarm module to give an alarm, a vent (26) is formed on the tank walls of the filter chamber and the regeneration chamber, and a manhole (6) is formed on the tank body (1).

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