CN105152265A - Composite coalescence type oil-water separation device and method - Google Patents
Composite coalescence type oil-water separation device and method Download PDFInfo
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- CN105152265A CN105152265A CN201510452148.3A CN201510452148A CN105152265A CN 105152265 A CN105152265 A CN 105152265A CN 201510452148 A CN201510452148 A CN 201510452148A CN 105152265 A CN105152265 A CN 105152265A
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Abstract
The invention discloses a composite coalescence type oil-water separation device and method. A baffle is arranged in a deposition chamber inside a box body, a wear-resisting plate is arranged on the surface of one side, facing to a water inlet pipe, of the baffle, and a cleaning pipe opening is formed in a cover plate at the left side of the baffle. Both a corrugated-plate coalescer and a fiber-bundle coalescer are mounted in an outer frame with a slot structure, and the outer frame is fixed at the internal bottom of the box body. The top of an oil-water separation chamber is provided with an oil drain port and a liquid level switch, the left lower part of the oil-water separation chamber is connected with a clean water chamber through a clean water flow guide tube, and a water outlet is formed in the left middle part of the box body. Oily wastewater is subjected to flow state adjusting through the baffle and then sequentially passes through the corrugated-plate coalescer and the fiber-bundle coalescer so as to achieve the aim of oil-water separation, and finally, the oily wastewater is discharged after reaching standards. Through using the corrugated-plate coalescer and the fiber-bundle coalescer in a combined manner, the problem that the ratio of removal of oil from the oily wastewater is insufficient is solved, the effect of oil-water separation is remarkably improved, and conditions are created for reusing the oil, having a resource value, in the oily wastewater.
Description
Technical field
The invention belongs to field of waste water treatment, be specifically related to a kind of compound coagulation type oily-water seperating equipment and method thereof.
Background technology
The existing forms of oil in water body generally comprises oil slick (> 100 μm), dispersed oil (10 ~ 100 μm), oil in water emulsion (< 10 μm), separates oil (several microns) and solid attaching oil.The floating of oil content in water and its size have direct relation: droplet size is larger, and ascent rate is faster, then be more conducive to oil, water, layering.Therefore, for the separating effect of oily-water seperating equipment, oil droplet size is very important.
Oily water separation technique is long-standing, mainly contains Gravity separate, centrifugal separation, electrically separated, fractionation by adsorption and dissolved air flotation.Wherein, the advantages such as gravity type boat davit (unpowered type) profit square law device structure is simple, easy to operate, deoiling effect stable, do not consume medicament, non-secondary pollution, operation and maintenance cost are low, are widely used.But gravitational separation process can only have good removal to oil slick in oily(waste)water and the larger oil droplet of these particle diameters of dispersed oil, then there is no effect to the removal of dissolving oil, oil in water emulsion.The application of coalescence technology in oily water separation, while performance gravity type boat davit oily water separation advantage, solves the deficiency that it exists very well, thus obtains and apply more widely.
Coalescence technology, also known as coarse, refers to that oily(waste)water is in the process flowing through coalescence material, the process that the oil droplet in water body changes from small to big.Dispersed oil mainly in sewage of the object of coalescent method process and the stable oil in water emulsion of nonsurfactant.Coalescent method as an independently oily water separation technique, normally as the preparation link of gravity settling separation, by increasing oil droplet size, cannot make gravity settling separation thereafter become more easy and thorough, thus indirectly improving oil removal efficiency.Coalescent method oil removing, relative to other degreasing technique, mainly contains following characteristics:
1. coalescence technology can't reduce the oil-contg in oily(waste)water, and it just changes the size distribution of oil droplet in water body, is large oil droplet, improves the oil removal efficiency of follow-up gravity settling by the little oil droplet of coalescence.
2. coalescence technology can not change the chemical property of original water body, owing to not needing to introduce any chemical agent, avoids the generation of secondary pollution.Meanwhile, the oil product after separation also can directly be recycled.
By studying the change procedure of drop in agglomeration process, it is generally acknowledged and coalescently mainly comprise three processes: dispersed phase drop close to or the dispersed phase drop that collides cohesive fiber or be attached on fiber; Dispersed phase drop soaks on the dispersed phase drop that sticks on fiber or be attached on fiber; The dispersed phase drop increased is coalescent to be discharged from fiber surface after certain size.
Coalescing separator can be divided into board-like coalescing separator, material filling type coalescing separator and filer element type coalescing separator.Board-like coalescing separator is product shallow-layer principle and coalescence technology combined, and adopts multi-layer flat andante group, has both provided the carrier of oil droplet coalescence attachment, and shortened again the buoyance lift distance of oil droplet, thus realize except efficient lifting.Material filling type coalescing separator, refers to the coalescent bed by being arranged in housing, realizes the device that oil droplet coalescence becomes large and then completes oily water separation.By the difference of filler type of feed, material filling type coalescing separator is divided into the coalescent and coalescent two kinds of separators of dumped packing of structured packing.Material filling type coalescing separator developing direction is from now on decided by the improvement direction of filler and type of feed to a great extent.According to structured packing and dumped packing relative merits separately, make filler adopt relatively-stationary type of feed on the whole, local, in fluidized, is a reasonable thinking that can improve rejection efficiency.Filer element type coalescing separator take filter core as the water-and-oil separator of unique coalescent original paper, is mainly used in the field that becomes more meticulous of oily water separation.
The key of coalescent method is the selection of coalescence material, the contact angle size that oil, water are formed at material surface, will directly have influence on the deoiling effect of coalescent waved plate.Oil is less with the contact angle on the surface of material, and the lipophilicity of material is better; The contact angle on the surface of water and material is larger, and the hydrophobicity of material is better, then the coalescent effect of waved plate is better.The structural performance of waved plate coalescer, material behavior and plate group characteristic all can have an impact to the effect of oily water separation.
At present, the domestic oily-water seperating equipment scheme based on coalescence technology is more, and if the patent No. is CN101857285A, patent name is " composite coalescent oil-water separator ", arranges by the unit such as inclined tube, coalescent module the effect realizing oily water separation.But current most of plant running cycle is shorter, and under low cost, deoiling effect is also not ideal enough, and level of automation has much room for improvement.
Summary of the invention
The object of the invention is to solve problems of the prior art, and provide a kind of compound coagulation type oily-water seperating equipment and method thereof, concrete technical scheme is as follows:
A kind of compound coagulation type oily-water seperating equipment, casing top is provided with cover plate, box house becomes two chambers by the first baffle for separating, right side is clean water chamber, waved plate coalescer is arranged in the chamber in left side, and left chamber being divided into sediment chamber and oily water separation room, each chamber lower portion is equipped with water port; Casing upper left quarter is provided with water inlet pipe, sediment chamber's inner top is provided with traverse baffle, and traverse baffle is divided into dismountable two-part structure, is connect connected by baffle, traverse baffle is provided with wearing plate towards the surface of water inlet pipe side, and the cover plate on the right side of traverse baffle is provided with the cleaning mouth of pipe; Oily water separation indoor are provided with fibrous bundle coalescer, top, oily water separation room is provided with oil exit pipe and liquid level switch, oil exit pipe two ends are communicated with casing outside and oily water separation room respectively, oily water separation room right lower quadrant is connected by clear water thrust-augmenting nozzle with between clean water chamber, clear water thrust-augmenting nozzle stretches into the upper left quarter of clean water chamber, casing right middle is provided with rising pipe, and rising pipe two ends connect outside clean water chamber right lower quadrant and casing respectively; Waved plate coalescer and fibrous bundle coalescer are changeable type assembly, and waved plate coalescer and fibrous bundle coalescer are all installed in the outside framework in inserting slot construction, and outside framework is fixed on casing inner bottom part; Sediment chamber or top, oily water separation room are provided with venting port; Water inlet pipe is provided with electrical ball valve;
Liquid level switch comprises ball float, connecting rod and sensor, and connecting rod is vertically installed on the cover plate of oily water separation indoor top, and connecting rod bottom is provided with sensor; Ball float, through connecting rod, is positioned at above sensor, and the density of ball float is between oil and water; Sensor is connected with housing, and housing is connected with oil pump, electrical ball valve, and housing is used for the signal that sends of receiving sensor and the startup of control oil pump and closedown; Oil pump is connected with oil exit pipe, and oil exit pipe bottom level is higher than sensor location but lower than clear water thrust-augmenting nozzle top nozzle position.
As preferably, be also provided with sludge settling room, and separate with second partition on the left of the sediment chamber of described box house, bottom, sludge settling room is provided with water port, and second partition top is provided with water inlet pipe.
As preferably, be provided with the coalescent assembly of waved plate in waved plate coalescer, the coalescent assembly of waved plate is tilted by polylith and waved plate parallel to each other forms, and waved plate upper surface is slab construction, and lower surface is ripple struction.
As preferably, cover plate is fixed with handle member, described casing lower left quarter is provided with ground connection lug.
As preferably, the described casing left and right sides is equipped with lifting hanger.
Use a compound coagulation type oil-water separation method for described oily-water seperating equipment, comprise the steps:
1) oily(waste)water is flow into the sediment chamber of oily-water seperating equipment by water intake, and the traverse baffle first arranged below utilized head regulates Inlet flow pattern, makes its retaining layer stream mode of trying one's best in follow-up flow process;
2) through step 1) process after oily(waste)water flow through waved plate coalescer, enter tilt and in the coalescent assembly of waved plate parallel to each other, it is slab construction that oily(waste)water flows through upper surface, when lower surface is the waved plate of ripple struction, the ripple struction of lower surface makes current be diffusion, contraction schedule alternately flows and produces fluctuating flow, increase probability of collision between elaioleucite, increase oil droplet volume, oil droplet is floated, rise along waved plate and enter more than water layer, and the solid particulate in oily(waste)water, under gravity, be sink to the level and smooth and upper surface tilted and be deposited in sediment chamber, reach oily water separation,
3) by through step 2) oily(waste)water after process enters fibrous bundle coalescer, utilize the secondary fiber Shu Jujie web frame in fibrous bundle coalescer, by remaining elaioleucite coalescence, and float up to more than water layer, form the layered structure of oil reservoir and water layer, reach further oily water separation;
4) by through step 3) oily(waste)water enters the water layer on the top of clean water chamber, remaining elaioleucite floating in oily(waste)water by the clear water thrust-augmenting nozzle of oily water separation room and clean water chamber central dividing plate bottom after process, and water is discharged from clean water chamber bottom;
5) density utilizing the oil reservoir in sediment chamber, oily water separation room and clean water chamber to promote is greater than oil but the ball float being less than water moves downward along connecting rod, when arriving sensor location, sensor sends signal to housing, closed the water inlet pipe of oily-water seperating equipment by electrical ball valve by housing, open oil pump simultaneously, by oil exit pipe, oil is extracted out, when the oil pump opening time reaches preset value, close oil pump, again electrical ball valve.
As preferably, carry out step 1) process before, first oily(waste)water is entered sludge settling room and precipitates, make oily(waste)water carry out step 1) remove silt or mud before process.
This cover oily-water seperating equipment compared with existing oily-water seperating equipment, tool following points beneficial effect:
(1), long-play limited for conventional coalescing-plate oil removing produces the deficiency that sludge creation has a strong impact on separating effect, by adopting the compound use of " upper layer plane+lower floor's corrugated " coalescent assembly and fibrous bundle coalescer, achieve long periods of time in order, high efficiency oil-water separation.
(2) this covering device is for the not high problem of current oil water separation device level of automation, as required, by the Combination application of the Conventional spatial such as floating-ball level switch, housing, electrical ball valve, based on transducing signal process and feedback, achieve the automatic control of oil extraction process, improve the operation ease of device greatly.
Accompanying drawing explanation
Fig. 1 is the structural representation of oily-water seperating equipment;
Fig. 2 is the connection diagram that liquid level switch of the present invention controls liquid level part;
In figure, casing 1, sediment chamber 2, oily water separation room 3, sensor 4, water inlet pipe 5, traverse baffle 6, wearing plate 7, waved plate coalescer 8, framework 9, ball float 10, rising pipe 11, cover plate 12, venting port 13, connecting rod 14, the cleaning mouth of pipe 15, housing 16, water port 17, oil exit pipe 18, liquid level switch 19, clear water thrust-augmenting nozzle 20, electrical ball valve 21, lifting hanger 22, oil pump 23, fibrous bundle coalescer 24, handle member 25, baffle connect 26, sludge settling room 27, first dividing plate 28, second partition 28 ', ground connection lug 29 and clean water chamber 30.
Embodiment
As shown in Figure 1, a kind of compound coagulation type oily-water seperating equipment, casing 1 top is provided with cover plate 12, and casing 1 inside is separated into two chambers by the first dividing plate 28, and the first dividing plate 28 is connected by seal welding with casing 1; Right side is clean water chamber 30, and waved plate coalescer 8 is arranged in the chamber in left side, and left chamber is divided into sediment chamber 2 and oily water separation room 3, and sediment chamber 2 is communicated with top, oily water separation room 3.Each chamber lower portion is equipped with water port 17.Casing 1 upper left quarter is provided with water inlet pipe 5, and water inlet pipe 5 is 90 ° of bend pipes.Sediment chamber 2 inner top is provided with traverse baffle 6, and traverse baffle 6 is divided into dismountable two-part structure, connects 26 be connected by baffle, and traverse baffle 6 is provided with wearing plate 7 towards the surface of water inlet pipe 5 side, adopts glue to bond between traverse baffle 6 and wearing plate 7.Traverse baffle 6 regulates for the Inlet flow pattern flowed out water inlet pipe 5.Cover plate 12 on the right side of traverse baffle 6 is provided with the cleaning mouth of pipe 15.Fibrous bundle coalescer 24 is provided with in oily water separation room 3, top, oily water separation room 3 is provided with oil exit pipe 18 and liquid level switch 19, oil exit pipe 18 is fixed on cover plate 12 by pipe collar form, oil exit pipe 18 two ends are communicated with casing 1 outside and oily water separation room 3 respectively, oily water separation room 3 right lower quadrant is connected by clear water thrust-augmenting nozzle 20 with between clean water chamber 30, clear water thrust-augmenting nozzle 20 stretches into the upper left quarter of clean water chamber 30, casing 1 right middle is provided with rising pipe 11, and rising pipe 11 two ends connect outside clean water chamber 30 right lower quadrant and casing 1 respectively.Waved plate coalescer 8 and fibrous bundle coalescer 24 are changeable type assembly, and waved plate coalescer 8 and fibrous bundle coalescer 24 are all installed in the outside framework in inserting slot construction, and outside framework is fixed on casing 1 inner bottom part.Sediment chamber 2 or top, oily water separation room 3 are provided with venting port 13.Water inlet pipe 5 is provided with electrical ball valve 21.Water pipe can adopt pvc pipe.
As preferably, be provided with the coalescent assembly of waved plate in waved plate coalescer 8, the coalescent assembly of waved plate is tilted by polylith and waved plate parallel to each other forms, and waved plate upper surface is slab construction, and lower surface is ripple struction.
After oily(waste)water enters waved plate coalescer 8, wherein larger-size oil droplet is except small part floating upward quickly is to except the liquid level of sedimentary province, mainly flows into the certain inclination angle of a series of one-tenth (can adjust according to practical situation), the coalescent assembly of waved plate parallel to each other with current.The two dimensional structure on the upper strata of waved plate is the solid particulate in order to make to enter in oily(waste)water this region, by the angle of inclination that is level and smooth and coalescing-plate of upper surface, landing can be set to sediment chamber, avoid, because the combined composition of " oil+water+particle " generates mud gradually in operational process, affecting Stability Analysis of Structures and the coalescence effect of coalescing-plate.The ripple struction of coalescing-plate lower surface, by to coalescing-plate material, distance between plates, the isoparametric optimization design in angle of inclination, realize waved plate to become spacing, become current streamline, water-carrying section is change, and current are the alternately flowing of diffusion, contraction schedule, create fluctuating flow, increase the probability of collision between elaioleucite, accelerate little oil droplet coalescence, be conducive to the floating of oil droplet, thus improve the efficiency of oily water separation.Under coalescence becomes the acting in conjunction that large oil droplet advances at buoyancy and current between coalescing-plate, enter water layer upper end along coalescing-plate scarp rises.
And the waste water after above-mentioned process enters fibrous bundle coalescer 24 again processes.Through process in early stage, the solid particulate (if containing) of oil-containing and larger-size elaioleucite (and part small size elaioleucite) obtain and remove fast and effectively, remain in oily(waste)water, then do not flow into secondary fiber Shu Jujie web frame by the smaller szie elaioleucite that coalescence is removed, the material special by this coalescent net and structure function, small size elaioleucite completes coalescence herein and floats up to more than water layer.As a kind of implementation of secondary fiber bundle coalescer, this coalescer entirety is hollow, rectangular structure, and rectangular surfaces is polypropylene material, and surface is fine and close cellular hexagonal hole.Meanwhile, fibrous bundle coalescer also can adopt other modes of the prior art to realize.Oily(waste)water after the coalescent cell processing of two-stage, contained oil content substantially forms oil slick layer and is positioned on water layer, and oil, water stratification structure are formed.
As shown in Figure 2, the above-mentioned liquid level switch 19 mentioned comprises ball float 10, connecting rod 14 and sensor 4, and connecting rod 14 is vertically installed on the cover plate 12 of oily water separation room 3 inner top, and connecting rod 14 bottom is provided with sensor 4; Ball float, through connecting rod 14, is positioned at above sensor 4, and the density of ball float 10 is between oil and water; Sensor 4 is connected with housing 16, and housing 16 is connected with oil pump 23, electrical ball valve 21, the signal that housing 16 sends for receiving sensor 4 startup of control oil pump 23 and closedown; Oil pump 23 is connected with oil exit pipe 18, and oil exit pipe 18 bottom level is higher than sensor 4 position but lower than clear water thrust-augmenting nozzle 20 top nozzle position.
Due to the existence of this liquid level switch 19, along with continuing of oiliness sewage treatment process, the oil reservoir formed above water layer is thickening gradually, due to the total thickness (degree of depth) of " oil reservoir+water layer " constant (flushing with clear water thrust-augmenting nozzle nozzle position), oil reservoir amasss the reduction that thick simultaneous causes water depth, after water layer liquid level drops to certain depth, the liquid level switch ball float being positioned at water layer certain depth (arranged by the latch closure of liquid level switch connecting rod and regulate) pre-set starts to contact with oil reservoir face, due to oil, the difference of water-mass density and the material density of liquid level switch ball float are selected (ball float material density is between oil and water), ball float will move down under " promotion " that add thick oil pay lower end gradually, after ball float moves down into certain distance, trigger the sensor of liquid level switch, sensor then sends signal, now, the housing that control oil pump opens and closes receives the signal of liquid level switch, make feedback in time, the water-in of oily-water seperating equipment is closed by electrical ball valve, open oil pump simultaneously, oil reservoir is then pumped by the oil pipe (degree of depth when pipe lower end degree of depth and liquid level switch ball float move down ultimate range is suitable) inserting oily-water seperating equipment by oil pump, by time controling (due to equipment size, waste water oil concentration and pump parameter known, oil reservoir can be controlled as required and form thickness, and then calculate the oil extraction time), after oil extraction completes, electrical ball valve is opened, oily(waste)water continues to flow into, liquid level switch ball float floats, start the oily water separation entering next stage.Cleaning water not containing oil content (or content is little) is being intake with under atmospheric effect mainly through the dividing plate lower end water inlet arranged between coalescent district and clean water chamber, (in oil extraction process, water outlet suspends) in clean water basin is flowed into by rising pipe, because water inlet locations arranges lower, effectively can avoid the disturbance to oil reservoir like this, ensure effluent quality.
As preferably, be also provided with sludge settling room 27 on the left of the sediment chamber 2 of described casing 1 inside, and separate with second partition 28 ', be i.e. complete assembly as shown in Figure 1.Bottom, sludge settling room 27 is provided with water port 17, and the second partition 28 ' top between sludge settling room 27 and sediment chamber 2 is provided with water inlet pipe 5.The difference of this optimal way and aforesaid embodiment is, original sediment chamber 2 second partition 28 ' is divided into two chambers, and left side is sludge settling room 27, and right side is sediment chamber 2, and traverse baffle 6 is still arranged with in sediment chamber 2.Be equivalent to be provided with settling tank in front end, sediment chamber 2, if contain the compositions such as the larger such as shale of more proportion in oily(waste)water, these can be made to be deposited in before oily(waste)water enters follow-up coalescent unit, precipitate, avoid impacting follow-up aggregated component performance.
As preferably, cover plate 12 is fixed with handle member 25, described casing 1 lower left quarter is provided with ground connection lug 29.
As preferably, described casing 1 left and right sides is equipped with lifting hanger 22, and lifting hanger 22 is connected with casing 1 by welding, lifting operation when installing for device.
Use a compound coagulation type oil-water separation method for described oily-water seperating equipment, comprise the steps:
1) oily(waste)water is flow into the sediment chamber 2 of oily-water seperating equipment by water intake, and the traverse baffle first arranged below utilized head regulates Inlet flow pattern, makes its retaining layer stream mode of trying one's best in follow-up flow process;
2) through step 1) process after oily(waste)water flow through waved plate coalescer 8, enter tilt and in the coalescent assembly of waved plate parallel to each other, it is slab construction that oily(waste)water flows through upper surface, when lower surface is the waved plate of ripple struction, the ripple struction of lower surface makes current be diffusion, contraction schedule alternately flows and produces fluctuating flow, increase probability of collision between elaioleucite, increase oil droplet volume, oil droplet is floated, rise along waved plate and enter more than water layer, and the solid particulate in oily(waste)water, under gravity, be sink to the level and smooth and upper surface tilted and be deposited in sediment chamber, reach oily water separation,
3) by through step 2) oily(waste)water after process enters fibrous bundle coalescer 24, utilize the secondary fiber Shu Jujie web frame in fibrous bundle coalescer 24, by remaining elaioleucite coalescence, and float up to more than water layer, form the layered structure of oil reservoir and water layer, reach further oily water separation;
4) by through step 3) oily(waste)water enters the water layer on the top of clean water chamber 30 by the clear water thrust-augmenting nozzle 20 of oily water separation room 3 and clean water chamber 30 central dividing plate (i.e. second partition 28 ') bottom after process, in oily(waste)water, remaining elaioleucite floats, and water is discharged from clean water chamber 30 bottom;
5) density promoted on 10 of the oil reservoir in sediment chamber 2, oily water separation room 3 and clean water chamber 30 is utilized to be greater than oil but the ball float 10 being less than water moves downward along connecting rod 14, when arriving sensor 4 position, sensor sends signal to housing 16, closed the water inlet pipe 5 of oily-water seperating equipment by electrical ball valve 21 by housing 16, open oil pump 23 simultaneously, by oil exit pipe 18, oil is extracted out, when oil pump 23 opening time reaches preset value, close oil pump 23, again electrical ball valve 21.
Preferred as the method, carry out step 1) process before, first oily(waste)water is entered sludge settling room 27 and precipitates, make oily(waste)water carry out step 1) remove silt or mud before process.
In order to the separating effect of oily-water seperating equipment of the present invention is described, utilize oil-water separator device in the present invention, the oily(waste)water that the process of dyeing forming machine waste gas spray produces is processed, being provided with aforementioned said upper surface in the waved plate coalescer of this device is slab construction, and lower surface is the waved plate of ripple struction.Fibrous bundle coalescer adopts secondary fiber Shu Jujie net.According to waste water physico-chemical property, front end does not arrange sludge settling pond.All the other structures and mode of connection are all identical with aforesaid device.
This cover oily-water seperating equipment is adopted to be 5m to water spray
3the oily(waste)water of/h processes, this oily(waste)water oil content composition is mainly from forming machine waste gas, main component comprises: the cured and oily (content: 1% ~ 2%) of textiles fabrication processes, refining, boil, the organic solvent (10% ~ 20%) of drift process, dyeing and dyeing auxiliary (5% ~ 20%), urea in printing gum, dyestuff and solvent (10% ~ 20%), the chemical composition (30%) such as hydrogen, oxygen, carbon in the polymkeric substance such as resin, softening agent (5% ~ 10%) of sizing processing and other oil smoke.This oil flue waste gas is the complicated oily(waste)water of forming component after spray process, and concentration of oil is at about 500mg/L.Adopt this cover compound coagulation type water-and-oil separator to process, final outflow water oil concentration can be reduced to below 5mg/L, and the clearance of oil content can to more than 99%.
As can be seen here, this complete equipment is while performance gravity oil-water separator advantage, by being arranged in series of the coalescent unit of two-stage, promote the coalescence of the less oil droplet of size (dissolving oil and nonsurfactant oil in water emulsion) in water body targetedly, realize the removal to small size oil droplet, improve the degree of oily water separation, the process for the oil after separation, water is disposed and is created conditions.The present invention adopts following technical scheme for the not high problem of current oil water separation equipment level of automation, as required, by the cooperation of multiple function unit transducing signal, feedback, action, solve oil removing and the Automated condtrol of water inlet process, saved cost of labor, improve efficiency, reduced security risk.Meanwhile, solve the problem of oil content clearance deficiency in oily(waste)water, significantly promote the effect of oily water separation, for the recycling in oily(waste)water with the oil content that resource utilization is worth creates condition.
Claims (7)
1. a compound coagulation type oily-water seperating equipment, it is characterized in that, casing (1) top is provided with cover plate (12), casing (1) inside is separated into two chambers by the first dividing plate (28), right side is clean water chamber (30), waved plate coalescer (8) is arranged in the chamber in left side, and left chamber is divided into sediment chamber (2) and oily water separation room (3), and each chamber lower portion is equipped with water port (17); Casing (1) upper left quarter is provided with water inlet pipe (5), sediment chamber (2) inner top is provided with traverse baffle (6), traverse baffle (6) is divided into dismountable two-part structure, connect (26) by baffle to be connected, traverse baffle (6) is provided with wearing plate (7) towards the surface of water inlet pipe (5) side, and the cover plate (12) on traverse baffle (6) right side is provided with the cleaning mouth of pipe (15); Fibrous bundle coalescer (24) is provided with in oily water separation room (3), oily water separation room (3) top is provided with oil exit pipe (18) and liquid level switch (19), oil exit pipe (18) two ends are communicated with casing (1) outside and oily water separation room (3) respectively, be connected by clear water thrust-augmenting nozzle (20) between oily water separation room (3) right lower quadrant with clean water chamber (30), clear water thrust-augmenting nozzle (20) stretches into the upper left quarter of clean water chamber (30), casing (1) right middle is provided with rising pipe (11), and rising pipe (11) two ends connect clean water chamber (30) right lower quadrant and casing (1) outside respectively; Waved plate coalescer (8) and fibrous bundle coalescer (24) are changeable type assembly, and waved plate coalescer (8) and fibrous bundle coalescer (24) are all installed in the outside framework in inserting slot construction, and outside framework is fixed on casing (1) inner bottom part; Sediment chamber (2) or oily water separation room (3) top are provided with venting port (13); Water inlet pipe (5) is provided with electrical ball valve (21);
Liquid level switch (19) comprises ball float (10), connecting rod (14) and sensor (4), and connecting rod (14) is vertically installed on the cover plate (12) of oily water separation room (3) inner top, and connecting rod (14) bottom is provided with sensor (4); Ball float, through connecting rod (14), be positioned at sensor (4) top, and the density of ball float (10) is between oil and water; Sensor (4) is connected with housing (16), and housing (16) is connected with oil pump (23), electrical ball valve (21), the signal that housing (16) sends for receiving sensor (4) the startup of control oil pump (23) and closedown; Oil pump (23) is connected with oil exit pipe (18), and oil exit pipe (18) bottom level is higher than sensor (4) position but lower than clear water thrust-augmenting nozzle (20) top nozzle position.
2. a kind of compound coagulation type oily-water seperating equipment as claimed in claim 1, it is characterized in that, sludge settling room (27) is also provided with on the left of the sediment chamber (2) that described casing (1) is inner, and separate with second partition (28 '), sludge settling room (27) bottom is provided with water port (17), and second partition (28 ') top is provided with water inlet pipe (5).
3. a kind of compound coagulation type oily-water seperating equipment as claimed in claim 1 or 2, it is characterized in that, the coalescent assembly of waved plate is provided with in waved plate coalescer (8), the coalescent assembly of waved plate is tilted by polylith and waved plate parallel to each other forms, waved plate upper surface is slab construction, and lower surface is ripple struction.
4. a kind of compound coagulation type oily-water seperating equipment as claimed in claim 1, is characterized in that, cover plate (12) is fixed with handle member (25), and described casing (1) lower left quarter is provided with ground connection lug (29).
5. a kind of compound coagulation type oily-water seperating equipment as claimed in claim 1, is characterized in that, described casing (1) left and right sides is equipped with lifting hanger (22).
6. use a compound coagulation type oil-water separation method for oily-water seperating equipment as claimed in claim 1, it is characterized in that, comprise the steps:
1) oily(waste)water is flow into the sediment chamber (2) of oily-water seperating equipment by water intake, and the traverse baffle first arranged below utilized head regulates Inlet flow pattern, makes its retaining layer stream mode of trying one's best in follow-up flow process;
2) oily(waste)water after step 1) process flows through waved plate coalescer (8), enter tilt and in the coalescent assembly of waved plate parallel to each other, it is slab construction that oily(waste)water flows through upper surface, when lower surface is the waved plate of ripple struction, the ripple struction of lower surface makes current be diffusion, contraction schedule alternately flows and produces fluctuating flow, increase probability of collision between elaioleucite, increase oil droplet volume, oil droplet is floated, rise along waved plate and enter more than water layer, and the solid particulate in oily(waste)water, under gravity, be sink to the level and smooth and upper surface tilted and be deposited in sediment chamber, reach oily water separation,
3) by through step 2) oily(waste)water after process enters fibrous bundle coalescer (24), utilize the secondary fiber Shu Jujie web frame in fibrous bundle coalescer (24), by remaining elaioleucite coalescence, and float up to more than water layer, form the layered structure of oil reservoir and water layer, reach further oily water separation;
4) oily(waste)water after step 3) process is entered the water layer on the top of clean water chamber (30) by oily water separation room (3) and the clear water thrust-augmenting nozzle (20) of clean water chamber (30) central dividing plate bottom, in oily(waste)water, remaining elaioleucite floats, and water is discharged from clean water chamber (30) bottom;
5) sediment chamber (2) is utilized, oil reservoir in oily water separation room (3) and clean water chamber (30) density promoted on (10) is greater than oil but the ball float (10) being less than water moves downward along connecting rod (14), when arriving sensor (4) position, sensor sends signal to housing (16), closed the water inlet pipe (5) of oily-water seperating equipment by electrical ball valve (21) by housing (16), open oil pump (23) simultaneously, by oil exit pipe (18), oil is extracted out, oil pump (23) opening time is when reaching preset value, close oil pump (23), again electrical ball valve (21).
7. a kind of compound coagulation type oil-water separation method as claimed in claim 6, it is characterized in that, before the process carrying out step 1), first oily(waste)water is entered sludge settling room (27) and precipitate, make oily(waste)water remove silt or mud before carrying out step 1) process.
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