CN112386954B - Automatic control oil-water separation and recycling integrated equipment - Google Patents
Automatic control oil-water separation and recycling integrated equipment Download PDFInfo
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- CN112386954B CN112386954B CN201910764670.3A CN201910764670A CN112386954B CN 112386954 B CN112386954 B CN 112386954B CN 201910764670 A CN201910764670 A CN 201910764670A CN 112386954 B CN112386954 B CN 112386954B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 206
- 238000000926 separation method Methods 0.000 title claims abstract description 39
- 238000004064 recycling Methods 0.000 title claims abstract description 30
- 238000001914 filtration Methods 0.000 claims abstract description 238
- 230000008929 regeneration Effects 0.000 claims abstract description 83
- 238000011069 regeneration method Methods 0.000 claims abstract description 83
- 239000010865 sewage Substances 0.000 claims abstract description 67
- 239000007788 liquid Substances 0.000 claims description 80
- 238000004140 cleaning Methods 0.000 claims description 37
- 238000005192 partition Methods 0.000 claims description 28
- 239000000463 material Substances 0.000 claims description 26
- 239000008213 purified water Substances 0.000 claims description 24
- 238000011049 filling Methods 0.000 claims description 23
- 238000000746 purification Methods 0.000 claims description 12
- 238000009423 ventilation Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000004519 grease Substances 0.000 abstract description 7
- 239000003921 oil Substances 0.000 description 63
- 238000000034 method Methods 0.000 description 15
- 239000000945 filler Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 10
- 238000005406 washing Methods 0.000 description 10
- 239000000835 fiber Substances 0.000 description 6
- 241000758789 Juglans Species 0.000 description 4
- 235000009496 Juglans regia Nutrition 0.000 description 4
- 235000020234 walnut Nutrition 0.000 description 4
- 238000005189 flocculation Methods 0.000 description 3
- 230000016615 flocculation Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000006004 Quartz sand Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/0202—Separation of non-miscible liquids by ab- or adsorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/12—Auxiliary equipment particularly adapted for use with liquid-separating apparatus, e.g. control circuits
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The utility model discloses an automatic control oil-water separation and recycling integrated device, which comprises: oil-water separation and recycling integrated equipment and PLC, oil-water separation and recycling integrated equipment includes: the tank body, axle and 2 filtration, be equipped with a first baffle in the tank body admittedly, the other end of axle stretches out after passing this first baffle along the plane that first baffle is located, the axle can rotate in first baffle, 2 filtration are located filter chamber and regeneration indoor respectively, be formed with uncovered and axle from uncovered passing on the position that first baffle is relative with every filtration, filtration blocks up rather than the uncovered and adorns admittedly with the axle that is located this uncovered, the motor drive shaft is rotatory, every filtration passes through on the first baffle rather than the uncovered of relative and gets into to another 1 space from 1 space when the axle is rotatory. The utility model realizes the oil-water separation of the polluted oily sewage, the separated clean water can be recycled, and the separated grease can be collected and reused.
Description
Technical Field
The utility model belongs to the technical field of oil-water separation, and particularly relates to automatic control oil-water separation and recycling integrated equipment.
Background
The oily sewage mainly comes from the exploitation and processing process of petroleum, the steel smelting process and the discharge of the catering industry. As the protection of water resources is more and more strict, the treatment difficulty of the oily sewage is more and more serious and the cost is continuously increased under the condition that the wastewater discharge standard is improved year by year, and even part of enterprises face the embarrassment of closing because the wastewater can not be treated.
At present, the domestic treatment of the oily sewage mainly adopts methods of air floatation, gravity separation, flocculation, filtration and the like. The oil removal rate of air flotation and gravity separation is generally not more than 70%, the efficiency is low, and the occupied space is large. The flocculation method has poor treatment effect on free grease contained in sewage, and additionally needs to add flocculant, and secondary filtration and separation are needed after flocculation. The filtering method has higher grease removal rate on the oily sewage, but has more strict requirements on filtering materials, and the filtering effects of different filtering materials are different greatly, so that the conventional filtering materials comprise quartz sand, clay, walnut shells, fiber balls and the like. The quartz sand has the characteristics of high strength, high density and strong dirt carrying capacity, but has high labor intensity when loading and unloading fillers, and is difficult to treat after adsorption. The walnut shell and fiber ball filter material has the advantages of light weight, good filtering effect and the like, and is concerned by researchers and producers. For example, wang Xiujun of 2016 China sea oil introduces the filtering effect of the modified walnut shell filtering material, and yanyuting of 2019 Liaohe oil field is a related study of walnut shell filters. The Tang Anrong of the Zhonghai oil researches the advanced treatment of the modified fiber balls for offshore oil field sewage, and the research shows that the modified fiber balls have good filtering effect.
The filtering means and the technology reported at present treat oily sewage as three wastes, and designs a plurality of devices according to different fillers, for example, an utility model patent CN208726837U, designs a filter with a backwashing function, for example, a filter which is convenient for filtering and sterilizing is reported by CN 208120905U. CN208161112U reports a multi-stage fiber filter. These filters have good filtration but have two disadvantages: firstly, the back flushing process needs to be operated intermittently, namely, the back flushing can be performed after the filtering is stopped; secondly, the filtered grease is not collected by all filtering methods of the filtering equipment. The crude oil, the distillate oil, the lubricating grease, the edible grease and the like contained in the oily sewage are valuable resources, and if the oily sewage can be effectively recovered, the pollution can be reduced, and the resources can be utilized and the energy can be saved.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model aims to provide oil-water separation and recycling integrated equipment for treating oily sewage, which integrates a filter (a filtering structure) and a regenerator, filters the oily sewage, regenerates a filtering material, and can recycle oil released during regeneration of the filtering material.
The utility model further aims to provide the automatic control oil-water separation and recycling integrated equipment, which can continuously operate oil-water separation and filtering material regeneration, is automatically controlled, is efficient and convenient, and has the functions of green regeneration and waste oil recycling while enabling the filter to adapt to production requirements.
The utility model also aims to provide a use method of the automatic control oil-water separation and recycling integrated equipment.
The aim of the utility model is achieved by the following technical scheme.
An integrated oil-water separation and recycling device for treating oily sewage, comprising: the tank body, the axle and 2 filtration are equipped with a first baffle in the tank body for with the internal portion of jar separates into 2 spaces: a filter chamber and a regeneration chamber; one end of the shaft is fixedly arranged with a motor, the other end of the shaft extends out after penetrating through the first baffle along the plane of the first baffle, the shaft can rotate in the first baffle, 2 filtering structures are respectively positioned in the filtering chamber and the regeneration chamber, an opening is formed at the position, opposite to each filtering structure, of the first baffle, the shaft penetrates through the opening, the filtering structures block the opening opposite to the filtering structures and are fixedly arranged with the shaft positioned in the opening, the motor drives the shaft to rotate, and each filtering structure enters into the other 1 space from 1 space to the other 1 space through the opening opposite to the filtering structure on the first baffle when the shaft rotates, so that 1 filtering structure is respectively arranged in the filtering chamber and the regeneration chamber, and the filtering structure blocks the opening opposite to the filtering structure; an oily sewage inlet is formed on the tank wall of the filtering chamber above the filtering structure, the filtering structure in the filtering chamber is used for filtering the oily sewage in the filtering chamber, a clean water outlet is formed on the tank wall of the filtering chamber below the filtering structure, an oil overflow port is formed on the tank wall of the regeneration chamber above the filtering structure, and a cleaning water inlet is formed on the tank wall of the regeneration chamber.
In the above technical solution, 2 filter structures are perpendicular to the axis.
In the above technical scheme, the cross section of the inner wall of the tank body is circular, and the cross section of each filtering structure is semicircular.
In the above technical solution, each filtering structure is a half cylinder, and the filtering structure includes: an upper filtering screen plate serving as the top surface of the semi-cylinder, a lower filtering screen plate serving as the bottom surface of the semi-cylinder and a second partition plate positioned on the plane of the side surface of the semi-cylinder, wherein a filtering material is filled between the upper filtering screen plate and the lower filtering screen plate.
In the technical scheme, the cambered surface of the filtering structure is attached to the inner wall of the tank body close to the cambered surface.
In the above technical scheme, a first filling port is formed on the tank wall of the tank body opposite to the filtering structure, a cover body is mounted on the first filling port, a second filling port is formed on the cambered surface of the semi-cylinder body, and the shaft is rotated until the first filling port is opposite to the second filling port, so that the filtering material is filled between the upper filtering screen plate and the lower filtering screen plate.
In the technical scheme, 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 arranged with the second partition plates of the 2 filtering structures.
In the above technical scheme, 2 filtering structures are located on the same horizontal plane, the 2 filtering 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 scheme, 2 filtering structures are located in 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 scheme, a liquid level sensor is installed in the regeneration chamber above the filtering structure and used for detecting the liquid level of the cleaning water in the regeneration chamber.
In the above technical scheme, a pressure sensor is installed in the filter chamber above the filter structure and used for detecting the pressure in the filter chamber above the filter structure.
In the above-described aspect, a first concentration detector for detecting the concentration of oil or water in the liquid discharged from the purified water outlet is mounted on the purified water outlet.
In the above technical scheme, the water purification outlet is communicated with a first discharge pipe, the oily sewage inlet is communicated with a second discharge pipe, one end of a water return pipe is communicated with the water purification outlet, the other end of the water return pipe is communicated with the oily sewage inlet, a first valve is installed on the first discharge pipe, a second valve is installed on the water return pipe close to the water purification outlet, a water pump is installed on the water return pipe, a third valve is installed on the second discharge pipe, and a sixth valve is installed on the water 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.
In the above technical scheme, 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, ventilation openings are formed in the tank walls of the filtering chamber and the regeneration chamber.
Automatic control oil-water separation resourceful integrated equipment includes: the oil-water separation and recycling integrated equipment and the PLC control the motor to rotate.
In the above technical solution, 2 filter structures are perpendicular to the axis.
In the above technical scheme, the cross section of the inner wall of the tank body is circular, and the cross section of each filtering structure is semicircular.
In the above technical solution, each filtering structure is a half cylinder, and the filtering structure includes: an upper filtering screen plate serving as the top surface of the semi-cylinder, a lower filtering screen plate serving as the bottom surface of the semi-cylinder and a second partition plate positioned on the plane of the side surface of the semi-cylinder, wherein a filtering material is filled between the upper filtering screen plate and the lower filtering screen plate.
In the technical scheme, the cambered surface of the filtering structure is attached to the inner wall of the tank body close to the cambered surface.
In the above technical scheme, a first filling port is formed on the tank wall of the tank body opposite to the filtering structure, a cover body is mounted on the first filling port, a second filling port is formed on the cambered surface of the semi-cylinder body, and the shaft is rotated until the first filling port is opposite to the second filling port, so that the filtering material is filled between the upper filtering screen plate and the lower filtering screen plate.
In the technical scheme, 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 arranged with the second partition plates of the 2 filtering structures.
In the above technical scheme, 2 filtering structures are located on the same horizontal plane, the 2 filtering 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 scheme, 2 filtering structures are located in 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 scheme, a liquid level sensor is installed in the regeneration chamber above the filtering structure and used for detecting 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 technical scheme, a pressure sensor is arranged in the filtering chamber above the filtering structure and used for detecting the pressure in the filtering chamber above the filtering structure, and the pressure signal of the pressure sensor is read by the PLC.
In the above technical scheme, the water purification outlet is communicated with the first discharge pipe, the oily sewage inlet is communicated with the second discharge pipe, one end of a water return pipe is communicated with the water purification outlet, the other end of the water return pipe is communicated with the oily sewage inlet, a first valve is installed on the first discharge pipe, a second valve is installed on the water return pipe close to the water purification outlet, a water pump is installed on the water return pipe, a third valve is installed on the second discharge pipe, a sixth valve is installed on the water return pipe close to the oily sewage inlet, the PLC controls the opening and closing of the first valve, the third valve, the sixth valve and the second valve, and the PLC controls the opening and closing of the water pump.
In the above technical solution, a first concentration detector is mounted on the purified water outlet, and is used for detecting the concentration of oil or water in the liquid discharged from the purified water outlet, and a concentration signal of the first concentration detector is read by the PLC.
In the above technical solution, a second concentration detector is installed on the oily sewage inlet and is used for detecting the concentration of oil or water in the liquid passing through the oily sewage inlet, and a concentration signal of the second concentration detector is read by the PLC.
In the above technical scheme, a fourth valve is installed on the cleaning water inlet, and the PLC controls the fourth valve to be opened and closed.
In the above technical scheme, 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, further includes: and the PLC drives the alarm module to alarm.
In the above technical solution, ventilation openings are formed in the tank walls of the filtering chamber and the regeneration chamber.
In the above technical solution, a manhole is formed on the tank.
The application method of the automatic control oil-water separation and recycling integrated equipment comprises the following steps:
the motor is controlled to rotate through the PLC, 1 filtering structure is arranged in each of the filtering chamber and the regeneration chamber, cleaning water is introduced into the regeneration chamber through the cleaning water inlet, the liquid level of the cleaning water is higher than that of the filtering structure in the regeneration chamber, and the following filtering steps are repeated:
and when the filtering structure in the filtering chamber needs to be replaced, the motor is controlled by the PLC to drive the shaft to rotate 180 degrees so that the filtering chamber and the regeneration chamber exchange the filtering structure, and the filtering structure in the regeneration chamber is soaked with the cleaning water, so that the liquid oil in the filtering structure in the regeneration chamber is leached out to the liquid 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 to a level where the liquid oil reaches the oil overflow port, the liquid oil overflows from the oil overflow port.
In the above technical scheme, 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, and 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 the supply of the cleaning water into the regeneration chamber is stopped, the PLC controls the fourth valve to be closed.
In the above technical scheme, the water purification outlet is communicated with the first discharge pipe, the oily sewage inlet is communicated with the second discharge pipe, one end of a water return pipe is communicated with the water purification outlet, the other end of the water return pipe is communicated with the oily sewage inlet, a first valve is installed on the first discharge pipe, a second valve is installed on the water return pipe close to the water purification outlet, a water pump is installed on the water return pipe, a third valve is installed on the second discharge pipe, a sixth valve is installed on the water return pipe close to the oily sewage inlet, the PLC controls the opening and closing of the first valve, the third valve, the sixth valve and the second valve, and the PLC controls the opening and closing of the water pump.
In the above technical scheme, before the oily sewage is introduced into the filtering chamber in the filtering step, the PLC controls the first valve and the third valve to be opened, and the PLC controls the sixth valve and the second valve to be closed.
In the above technical scheme, a liquid level sensor is installed in the regeneration chamber above the filtering structure and used for detecting the liquid level of the cleaning water in the regeneration chamber, a liquid level signal of the liquid level sensor is read by the PLC, a critical liquid level value L0 is set for the PLC, the critical liquid level value L0 is higher than the height of the filtering structure in the regeneration chamber and lower than an oil overflow port (5), when the cleaning water is introduced into the regeneration chamber through a cleaning water inlet, 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 be closed.
In the above technical solution, further includes: and the PLC controls the alarm module to alarm when the liquid height signal of the liquid level sensor reaches a critical liquid level value L0.
In the above technical solution, a first concentration detector is installed on the purified water outlet, and is used for detecting the concentration of oil or water in the liquid discharged from the purified water outlet, and a concentration signal of the first concentration detector is read by the PLC; setting a critical concentration C0 to the PLC, and 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, controlling the first valve and the third valve to be closed by the PLC, and opening the sixth valve, the second valve and the water pump and judging that the filtering structure in the filtering chamber needs to be replaced by the PLC; a second concentration detector is arranged on the oily sewage inlet and is used for detecting the concentration of oil or water in liquid passing through the oily sewage inlet, and a concentration signal of the second concentration detector is read by the PLC; when the oil concentration value obtained after the PLC reads the concentration signal of the second concentration detector is smaller than the oil concentration value of the critical concentration C0, the PLC controls the first valve and the third valve to be opened and controls the sixth valve, the second valve and the water pump to be closed.
In the above technical solution, the tank walls of the filtering chamber and the regeneration chamber are both formed with air vents, the air vents of the filtering chamber are opened before the filtering step, and the air vents of the regeneration chamber are opened before the cleaning water is introduced into the regeneration chamber.
In the above technical scheme, a pressure sensor is installed in the filtering chamber above the filtering structure and is used for detecting the pressure in the filtering chamber above the filtering structure, a pressure signal of the pressure sensor is read by the PLC, a critical pressure P0 is set for the PLC, and when the pressure value of the pressure signal of the pressure sensor read by the PLC is larger than the critical pressure P0, the PLC judges that the filtering structure in the filtering chamber needs to be replaced.
The beneficial effects of the utility model are as follows:
the utility model realizes the oil-water separation of the polluted oily sewage, the separated clean water can be recycled, and the separated grease (liquid oil) can be collected and reused. The filtering material is a renewable filtering material and can be recycled, so that no three wastes are generated, and zero emission and resource utilization of the oily sewage are realized.
Drawings
FIG. 1 is a front view of an oil-water separation and recycling integrated device (an automatic control oil-water separation and recycling integrated device) of the present utility model;
fig. 2 is a front view of an oil-water separation and recycling integrated apparatus (an automatic control oil-water separation and recycling integrated apparatus) of the present utility model;
FIG. 3 is a top view (with shaft attachment) of the 2 filter structures of FIG. 1;
FIG. 4 is a top view (with shaft attached) of 1 filter structure;
FIG. 5 is a side view of the first separator plate of FIG. 1;
FIG. 6 is a side view of the first separator plate of FIG. 2;
FIG. 7 shows water samples before and after treatment of the oil-water separation and recycling integrated equipment.
Wherein, 1: tank body, 2: shaft, 3: first baffle, 4: inlet of oily sewage, 5: oil overflow port, 6: manhole, 7: first filler port, 8: purified water outlet, 9: return pipe, 10: water pump, 11: cleaning water inlet, 12: a motor, 13: bearing, 14: upper filter screen plate, 15: lower filter screen panel, 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 tube, 26: and a vent.
Detailed Description
The technical scheme of the utility model is further described below with reference to specific embodiments.
In the following embodiment, the liquid level sensor is HM21F, the pressure sensor is AK-2088, and the first and second concentration detectors are DHP-485. The model of the PLC is AX3U-80MT.
Example 1
An integrated oil-water separation and recycling device for treating oily sewage, comprising: the tank body 1, the shaft 2 and 2 filtering structures are fixedly provided with a first baffle plate 3 in the tank body 1, and the first baffle plate is used for dividing the interior of the tank body 1 into 2 spaces: a filter chamber and a regeneration chamber; one end of the shaft 2 is fixedly arranged with a motor 12, the other end of the shaft 2 extends out along the plane of the first partition plate 3 after passing through the first partition plate 3, a bearing 13 is arranged (the bearing 13 can be not arranged), the shaft 2 can rotate in the first partition plate 3, 2 filter structures are respectively positioned in the filter chamber and the regeneration chamber, wherein an opening is formed at the position of the first partition plate 3 opposite to each filter structure, the shaft 2 passes through the opening, one end of the filter structure extends into the opening and is fixedly arranged with the shaft 2 positioned 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 each filter structure enters from 1 space to the other 1 space through the opening of the first partition plate 3 opposite to the filter structure and blocks the opening opposite to the filter chamber when the shaft 2 rotates, so that 1 filter structure is respectively arranged in the filter chamber and the regeneration chamber; an oily sewage inlet 4 is formed on the tank wall of the filtering chamber above the filtering structure, the filtering structure in the filtering chamber is used for filtering the oily sewage in the filtering chamber, a purified water outlet 8 is formed on the tank wall of the filtering chamber below the filtering structure, an oil overflow port 5 is formed on the tank wall of the regeneration chamber above the filtering structure, and a cleaning water inlet 11 is formed on the tank wall of the regeneration chamber, preferably, the cleaning water inlet 11 is positioned below the filtering structure in the regeneration chamber.
Example 2
On the basis of example 1, 2 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 filtering structure is semicircular, as shown in fig. 4. Each filter structure is a half cylinder, and the filter structure includes: an upper filter screen plate 14 as a top surface of the half cylinder, a lower filter screen plate 15 as a bottom surface of the half cylinder, and a second separator plate 23 (the arc surface of the filter structure may be a closed surface or an open surface) located on a plane of the side surface of the half cylinder, a plurality of small holes are formed on each of the upper filter screen plate 14 and the lower filter screen plate 15, a filter material 22 is filled between the upper filter screen plate 14 and the lower filter screen plate 15, and the filter material 22 is a material that can release oil adsorbed by soaking, for example: the filter material 22 may be a fibrous ball filter packing (patent publication number CN109453562 a). The cambered surface of the filtering structure is attached to the inner wall of the tank body 1 which is close to the cambered surface. Preferably, soft sealing materials are fixedly arranged at the edges of the upper filtering sieve plate 14 and the lower filtering sieve plate 15, which are in contact with the inner wall of the tank body 1, respectively, so as to improve the sealing effect between the edge of the filtering structure and the inner wall of the tank body 1, and the filtering effect of the filtering structure can be improved after the sealing effect is improved.
A first filling port 7 is formed on the tank wall of the tank body 1 opposite to the filtering structure, the first filling port 7 is preferably located on the tank wall of the regeneration chamber, a cover body is mounted on the first filling port 7, a second filling port (the opening surface is an opening surface when the cambered surface of the filtering structure is an opening surface) is formed on the cambered surface of the semi-cylindrical body, and the rotating shaft 2 is opposite to the first filling port 7 and is used for filling the filtering material 22 between the upper filtering screen plate 14 and the lower filtering screen plate 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 arranged with the second partition plates 23 of the 2 filtering structures.
A liquid level sensor is arranged in the regeneration chamber above the filtering structure and used for detecting the liquid level of the cleaning water in the regeneration chamber and preventing the cleaning water from overflowing to the oil overflow port due to the overhigh liquid level.
And a pressure sensor is arranged in the filter chamber above the filter structure and used for detecting the pressure in the filter chamber above the filter structure and preventing the pressure in the filter chamber from exceeding a set value.
A first concentration detector is mounted 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 water return pipe 9 is communicated with the clean water outlet 8, the other end of the water return pipe 9 is communicated with the oily sewage inlet 4, a first valve 17 is arranged on the first discharge pipe 25, a second valve 18 is arranged on the water return pipe 9 close to the clean water outlet 8, a water pump 10 is arranged on the water return pipe 9, a third valve 16 is arranged on the second discharge pipe 24, and a sixth valve 19 is arranged on the water return pipe 9 close to the oily sewage inlet 4.
A second concentration detector is mounted on the oily sewage inlet 4 for detecting the concentration of oil or water in the liquid passing through the oily sewage inlet 4.
A manhole 6 is formed in the tank 1, 2 as shown in fig. 1, and is located at opposite sides of the tank 1, respectively.
A fourth valve 21 is installed at the washing water inlet 11.
A fifth valve 20 is mounted on the oil overflow 5.
Vents 26 are formed in the tank walls of both the filter chamber and the regeneration chamber.
Example 3
On the basis of embodiment 2, 2 filter structures are located on the same horizontal plane and the 2 filter structures are connected to form a cylinder, the length of the opening along the radial direction of the tank 1 is the same as the diameter of the inner wall of the tank 1, and the first partition plate is shown in fig. 5. The shaft 2 passes through the opening and is located at the centre line of the opening. The size of the opening on the first partition is the same as the size of the plane on the side of the filter structure.
Example 4
On the basis of example 2, 2 filter structures are located at different levels, the length of the opening along the radial direction of the can 1 is the same as the radius of the inner wall of the can 1, and the first partition is shown in fig. 6, as shown in fig. 2. Half of the shaft 2 (2 said "half of the shaft" after division in the radial direction of the shaft 2) passes through the opening. The size of the opening on the first partition plate is one half of the plane of the side face of the filtering structure.
Example 5
Automatic control oil-water separation resourceful integrated equipment includes: in the agricultural oil-water separation and recycling integrated equipment and the PLC in the embodiment 1, the PLC controls the motor 12 to rotate.
Example 6
On the basis of example 5, 2 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 filtering structure is semicircular.
Each filter structure is a half cylinder, and the filter structure includes: the upper filter screen plate 14 as the top surface of the half cylinder, the lower filter screen plate 15 as the bottom surface of the half cylinder, and the second partition 23 (the arc surface of the filter structure may be a closed surface or an open surface) on the plane of the side surface of the half cylinder, a plurality of small holes are formed on each of the upper filter screen plate 14 and the lower filter screen plate 15, the filter material 22 is filled between the upper filter screen plate 14 and the lower filter screen plate 15, and the filter material 22 may be a fiber ball filter filler (patent publication No. CN109453562 a).
The cambered surface of the filtering structure is attached to the inner wall of the tank body 1 which is close to the cambered surface. Preferably, soft sealing materials are fixedly arranged at the edges of the upper filtering screen plate 14 and the lower filtering screen plate 15, which are contacted with the inner wall of the tank body 1, respectively, so as to improve the sealing effect between the edge of the filtering structure and the inner wall of the tank body 1, and further improve the filtering effect of the filtering structure.
A first filler opening 7 is formed in the tank wall of the tank 1 opposite to the filtering structure, the first filler opening 7 is preferably located in the tank wall of the regeneration chamber, a cover is mounted on the first filler opening 7, a second filler opening (the open surface is the second filler opening when the arc surface of the filtering structure is an open surface) is formed on the arc surface of the semi-cylinder, and the rotating shaft 2 to the first filler opening 7 are opposite to the second filler opening for filling the filtering material 22 between the upper filtering screen plate 14 and the lower filtering screen plate 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 arranged with the second partition plates 23 of the 2 filtering structures.
A liquid level sensor is arranged in the regeneration chamber above the filtering structure and used for detecting the liquid level of the cleaning water in the regeneration chamber, so that the cleaning water is prevented from overflowing to the oil overflow port due to the overhigh liquid level, and the liquid level signal of the liquid level sensor is read by the PLC.
The pressure sensor is arranged in the filtering chamber above the filtering structure and used for detecting the pressure intensity when the filtering chamber above the filtering structure is filled with the oily sewage, so that the pressure in the filtering chamber is prevented from exceeding a set value, and the pressure intensity 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 water return pipe 9 is communicated with the clean water outlet 8, the other end of the water return pipe 9 is communicated with the oily sewage inlet 4, a first valve 17 is arranged on the first discharge pipe 25, a second valve 18 is arranged on the water return pipe 9 close to the clean water outlet 8, a water pump 10 is arranged on the water return pipe 9, a third valve 16 is arranged on the second discharge pipe 24, a sixth valve 19 is arranged on the water return pipe 9 close to the oily sewage inlet 4, and a PLC controls the opening and closing of the first valve 17, the third valve 16, the sixth valve 19 and the second valve 18.
A first concentration detector is mounted 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 a concentration signal of the first concentration detector is read by the PLC.
A second concentration detector is mounted 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 at the washing 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.
Further comprises: and the PLC drives the alarm module to alarm, and the alarm module can give an audible and visual alarm and display related reasons when giving an alarm.
Vents 26 are formed in the tank walls of both the filter chamber and the regeneration chamber.
A manhole 6 is formed in the tank 1, and 2 are shown in fig. 1.
Example 7
On the basis of example 6, 2 filter structures are located on the same horizontal plane and the 2 filter structures are connected to form a cylinder, the length of the opening along the radial direction of the tank 1 is the same as the diameter of the inner wall of the tank 1, as shown in fig. 1, and the first partition is shown in fig. 5. The shaft 2 passes through the opening and is located at the centre line of the opening. The size of the opening on the first partition is the same as the size of the plane on the side of the filter structure.
Example 8
On the basis of example 6, 2 filter structures were located at different levels, as shown in fig. 2, and the length of the opening along the radial direction of the can 1 was the same as the radius of the inner wall of the can 1, as shown in fig. 2, and the first partition was as shown in fig. 6. Half of the shaft 2 (2 said "half of the shaft" after division in the radial direction of the shaft 2) passes through the opening. The size of the opening on the first partition plate is one half of the plane of the side face of the filtering structure.
Example 9
The method for using the automatic control oil-water separation and recycling integrated equipment in the embodiment 5 comprises the following steps:
the motor 12 is controlled by the PLC to rotate, so that 1 filtering structure is respectively arranged in the filtering chamber and the regeneration chamber, cleaning water is introduced into the regeneration chamber through the cleaning water inlet 11, the liquid level of the cleaning water is higher than that of the filtering structure in the regeneration chamber, and the following filtering steps are repeated:
the oily sewage is introduced into the filtering chamber through the oily sewage inlet 4, filtered into purified water after passing through the filtering structure and discharged from the purified water outlet 8, when the filtering structure in the filtering chamber needs to be replaced, the motor 12 is controlled by the PLC to rotate 180 DEG by the driving shaft 2 so as to enable the filtering chamber and the regeneration chamber to exchange the filtering structure, the filtering structure in the regeneration chamber is soaked in the cleaning water, so that the liquid oil in the filtering structure in the regeneration chamber is leached out to the liquid level of the cleaning water in the regeneration chamber, and the filtering capability of the filtering structure is recovered.
Although the second partition board fixedly arranged in the filter structure can isolate the liquid in the filter chamber and the regeneration chamber, a small amount of purified water still enters the regeneration chamber through the filter material in the filter structure in the rotating process of the filter structure, however, experiments show that the regeneration process of the regeneration chamber is not influenced.
Example 10
On the basis of example 9, when the thickness of the liquid oil on the surface of the washing water in the regeneration chamber increases to the height of the liquid oil to 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 washing water inlet 11, and when washing water is required to be introduced into the regeneration chamber through the washing water inlet 11, the fourth valve 21 is controlled to be opened by the PLC; when the supply of the washing water into the regeneration chamber is stopped, the PLC controls the fourth valve 21 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 water return pipe 9 is communicated with the clean water outlet 8, the other end of the water return pipe 9 is communicated with the oily sewage inlet 4, a first valve 17 is arranged on the first discharge pipe 25, a second valve 18 is arranged on the water return pipe 9 close to the clean water outlet 8, a water pump 10 is arranged on the water return pipe 9, a third valve 16 is arranged on the second discharge pipe 24, a sixth valve 19 is arranged on the water return pipe 9 close to the oily sewage inlet 4, and a PLC controls the opening and closing of the first valve 17, the third valve 16, the sixth valve 19 and the second valve 18.
In the filtering step, before the oily sewage is introduced into the filtering chamber, the first valve 17 and the third valve 16 are controlled to be opened by the PLC, and the sixth valve 19 and the second valve 18 are controlled to be closed by the PLC (at the moment, the water pump 10 is closed).
A liquid level sensor is installed in the regeneration chamber above the filtering structure for detecting the liquid level of the washing water in the regeneration chamber, the liquid level signal of the liquid level sensor is read by the PLC, a critical liquid level value L0 is set to the PLC, the critical liquid level value L0 is higher than the height of the filtering structure in the regeneration chamber and lower than the oil overflow port 5, when the washing water is introduced into the regeneration chamber through the washing water inlet 11, the PLC reads the liquid level signal of the liquid level sensor once every 0.1-10 s, and when the liquid level of the liquid level signal continuously reaches the critical liquid level value L0 for 2 times, the PLC controls the fourth valve 21 to be closed.
Further comprises: and the alarm module is controlled by the PLC to alarm when the liquid height signal of the liquid level sensor reaches a critical liquid level value L0.
A first concentration detector is arranged on the purified water outlet 8 and is used for detecting the concentration of oil or water in the liquid discharged from the purified water outlet 8, and a concentration signal of the first concentration detector is read by the PLC; setting a critical concentration C0 for the PLC, and when the oil concentration value obtained by the PLC after continuously reading the concentration signal of the first concentration detector for 1-5 times is higher than the oil concentration value of the critical concentration C0, controlling the first valve 17 and the third valve 16 to be closed and the sixth valve 19, the second valve 18 and the water pump 10 to be opened by the PLC and judging that the filtering structure in the filtering chamber needs to be replaced. The PLC reads the concentration signal of the first concentration detector every 0.1-30 s. 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 to allow the liquid passing through the filter structure to be returned to the upper side of the filter structure and to be filtered (i.e., circulated inside) again through the filter structure.
A second concentration detector is arranged on the oily sewage inlet 4 and is used for detecting the concentration of oil or water in the liquid passing through the oily sewage inlet 4, and a concentration signal of the second concentration detector is read by the PLC; when the oil concentration value obtained after the PLC continuously reads the concentration signal of the second concentration detector 1 to 5 times is smaller than the oil concentration value of the critical concentration C0, the PLC controls the first valve 17 and the third valve 16 to be opened and the sixth valve 19, the second valve 18 and the water pump 10 to be closed. The PLC reads the concentration signal of the second concentration detector every 0.1-30 s.
The vent 26 is formed on the tank wall of both the filtering chamber and the regeneration chamber, the vent 26 of the filtering chamber is opened before the filtering step, and the vent 26 of the regeneration chamber is opened before the cleaning water is introduced into the regeneration chamber.
The pressure sensor is arranged in the filter chamber above the filter structure and used for detecting the pressure in the filter chamber above the filter structure, a pressure signal of the pressure sensor is read by the PLC, a critical pressure P0 is set for the PLC, and when the pressure value of the pressure signal of the pressure sensor is continuously read for 1-5 times by the PLC and is larger than the critical pressure P0, the PLC judges that the filter structure in the filter chamber needs to be replaced. The PLC reads the pressure signal of the pressure sensor once every 0.1-30 intervals.
For an oily sewage treatment example of a certain section of a certain oil refinery, according to the incoming water condition and the process requirement, firstly setting a critical concentration value C0 to be 5mg/L through a PLC; setting the critical pressure P0 to be 0.35MPa and setting the liquid level critical value L0 to be 1.0m; the PLC is set to read the values of the first concentration detector and the second concentration detector every 3 s. The oily sewage is introduced into the filtering chamber through the oily sewage inlet 4, the fluctuation of the oil content of the oily sewage in a small range of 46-53mg/L is detected by the second concentration detector, the oily sewage becomes clear purified water after passing through the filtering structure, and the oil content in the purified water passing through the purified water outlet 8 is detected to be 1-1.5 mg/L by the first concentration detector (the detection result is in small fluctuation of 1-1.5 mg/L). When the concentration of the first concentration detector is continuously read 3 times by the PLC and is more than 5.0mg/L, the first concentration detector detects that the value is 5.1mg/L after the oil-water separation and recycling integrated equipment continuously runs for 22 hours, the PLC controls the first valve 17 and the third valve 16 to be closed, the sixth valve 19, the second valve 18 and the water pump 10 to be opened for internal circulation, simultaneously, the PLC controls the motor 12 to rotate 180 degrees by the driving shaft 2 so that the filtering chamber and the regeneration chamber exchange the filtering structure, namely the new filtering structure (the filtering structure without the oil adsorbed) rotates into the filtering chamber, the filtering structure with the oil adsorbed is rotated into the regeneration chamber and soaked in the regeneration chamber, and liquid oil in the filtering structure in the regeneration chamber can be leached out to the liquid level of the cleaning water in the regeneration chamber through soaking. After 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; after the PLC continuously reads the concentration signals of the second concentration detector for 3 times to be less than 5.0mg/L, the PLC controls the first valve 17 and the third valve 16 to be opened and the sixth valve 19, the second valve 18 and the water pump 10 to be closed. The process completes an automatic replacement cycle for the oil-water separation and resource integrated equipment. After the above procedure was carried out 10 times, 30kg of reclaimed oil was collected from the oil overflow port. The left bottle in fig. 7 contains oily sewage which is input to the oily sewage inlet, and the right bottle contains purified water which is discharged to the purified water outlet.
The foregoing has described exemplary embodiments of the utility model, it being understood that any simple variations, modifications, or other equivalent arrangements which would not unduly obscure the utility model may be made by those skilled in the art without departing from the spirit of the utility model.
Claims (6)
1. An automatic control oil-water separation and recycling integrated device, which is characterized by comprising: oil-water separation and recycling integrated equipment and PLC, oil-water separation and recycling integrated equipment includes: tank body (1), axle (2) and 2 filtration are equipped with a first baffle (3) in the tank body (1) admittedly for with the internal partition of tank body (1) becomes 2 spaces: a filter chamber and a regeneration chamber; one end of the shaft (2) is fixedly arranged with a motor (12), the other end of the shaft extends out along the plane of the first partition board (3) after penetrating through the first partition board (3), the PLC controls the motor (12) to rotate, the shaft (2) can rotate in the first partition board (3), 2 filtering structures are respectively positioned in the filtering chamber and the regeneration chamber, an opening is formed at the position, opposite to each filtering structure, of the first partition board (3), the shaft (2) penetrates through the opening, the filtering structures block the opening opposite to the filtering structures and are fixedly arranged with the shaft (2) positioned in the opening, the motor (12) drives the shaft (2) to rotate, and each filtering structure enters into the other 1 space from 1 space through the opening opposite to the filtering structure on the first partition board (3) when the shaft (2) rotates, so that 1 filtering structure is respectively arranged in the filtering chamber and the regeneration chamber and the filtering structure are blocked by the opening opposite to the filtering structure; an oily sewage inlet (4) is formed on the tank wall of the filtering chamber above the filtering structure, the filtering structure in the filtering chamber is used for filtering the oily sewage in the filtering chamber, a clean water outlet (8) is formed on the tank wall of the filtering chamber below the filtering structure, an oil overflow port (5) is formed on the tank wall of the regeneration chamber above the filtering structure, a cleaning water inlet (11) is formed on the tank wall of the regeneration chamber, and the cleaning water inlet (11) is positioned below the filtering structure in the regeneration chamber;
2 said filtering structures being perpendicular to said axis (2); the cross section of the inner wall of the tank body (1) is circular, the cross section of each filtering structure is semicircular, each filtering structure is a semicircular cylinder, and the filtering structure comprises: an upper filtering screen plate (14) serving as the top surface of the semi-cylinder, a lower filtering screen plate (15) serving as the bottom surface of the semi-cylinder and a second baffle plate (23) positioned on the plane of the side surface of the semi-cylinder, wherein a filtering material (22) is filled between the upper filtering screen plate (14) and the lower filtering screen plate (15), and the cambered surface of the filtering structure is attached to the inner wall of the tank body (1) close to the cambered surface;
a first filling port (7) is formed on the tank wall of the tank body (1) opposite to the filtering structure, the first filling port (7) is positioned on the tank wall of the regeneration chamber, a cover body is arranged on the first filling port (7), a second filling port is formed on the cambered surface of the semi-cylinder body, and the shaft (2) is rotated until the first filling port (7) is opposite to the second filling port, so that the filtering material (22) is filled between the upper filtering screen plate (14) and the lower filtering screen plate (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 arranged with the second partition plates (23) of the 2 filtering structures;
the 2 filtering structures are positioned 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).
2. The automatic control oil-water separation and recycling integrated device according to claim 1, wherein a liquid level sensor is installed in the regeneration chamber above the filtering structure and used for detecting 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 a pressure sensor is arranged in the filtering chamber above the filtering structure and used for detecting the pressure in the filtering chamber above the filtering structure, and the pressure signal of the pressure sensor is read by the PLC.
3. The automatic control oil-water separation and recycling integrated equipment according to claim 1, wherein the water purification outlet (8) is communicated with a first discharge pipe (25), the oily water inlet (4) is communicated with a second discharge pipe (24), one end of a water return pipe (9) is communicated with the water purification outlet (8), the other end of the water return pipe (9) is communicated with the oily water inlet (4), a first valve (17) is installed on the first discharge pipe (25), a second valve (18) is installed on the water return pipe (9) close to the water purification outlet (8), a water pump (10) is installed on the water return pipe (9), a third valve (16) is installed on the second discharge pipe (24), a sixth valve (19) is installed on the water return pipe (9) close to the oily water 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), and the water pump (10) is turned on and off.
4. An automatically controlled integrated oil-water separation and recycling apparatus according to claim 3, characterized in that 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 a concentration signal of the first concentration detector is read by the PLC.
5. The integrated equipment for automatically controlling oil-water separation and recycling according to claim 4, wherein a second concentration detector is arranged on the oil-containing sewage inlet (4) and is used for detecting the concentration of oil or water in liquid passing through the oil-containing sewage inlet (4), and a concentration signal of the second concentration detector is read by the PLC.
6. The automatic control oil-water separation and recycling integrated equipment according to claim 5, characterized in that 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), the PLC controls the opening and closing of the fifth valve (20), and the oil overflow port further comprises: and the PLC drives the alarm module to alarm, ventilation ports (26) are formed on tank walls of the filtering chamber and the regeneration chamber, and a manhole (6) is formed on the tank body (1).
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| CN112386954B true CN112386954B (en) | 2024-03-22 |
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