CN113912239A - High-oil-content colloid sewage treatment device and method - Google Patents
High-oil-content colloid sewage treatment device and method Download PDFInfo
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- CN113912239A CN113912239A CN202111513415.5A CN202111513415A CN113912239A CN 113912239 A CN113912239 A CN 113912239A CN 202111513415 A CN202111513415 A CN 202111513415A CN 113912239 A CN113912239 A CN 113912239A
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000010865 sewage Substances 0.000 title claims abstract description 21
- 239000000084 colloidal system Substances 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 95
- 239000010802 sludge Substances 0.000 claims abstract description 60
- 238000000926 separation method Methods 0.000 claims abstract description 56
- 238000005189 flocculation Methods 0.000 claims abstract description 35
- 230000016615 flocculation Effects 0.000 claims abstract description 35
- 238000000746 purification Methods 0.000 claims abstract description 32
- 238000004062 sedimentation Methods 0.000 claims abstract description 25
- 239000003292 glue Substances 0.000 claims abstract description 19
- 238000004581 coalescence Methods 0.000 claims abstract description 13
- 239000000701 coagulant Substances 0.000 claims abstract description 11
- 238000005188 flotation Methods 0.000 claims abstract description 9
- 238000005345 coagulation Methods 0.000 claims abstract description 8
- 230000015271 coagulation Effects 0.000 claims abstract description 8
- 239000008394 flocculating agent Substances 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 239000002245 particle Substances 0.000 claims abstract description 6
- 238000001179 sorption measurement Methods 0.000 claims abstract description 6
- 239000000725 suspension Substances 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 12
- 150000001768 cations Chemical class 0.000 claims description 11
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 230000008030 elimination Effects 0.000 claims description 9
- 238000003379 elimination reaction Methods 0.000 claims description 9
- 239000003712 decolorant Substances 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 3
- 230000002195 synergetic effect Effects 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 4
- 239000003795 chemical substances by application Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 238000009825 accumulation Methods 0.000 abstract description 3
- 239000002332 oil field water Substances 0.000 abstract description 2
- -1 dosing Substances 0.000 abstract 1
- 239000002699 waste material Substances 0.000 description 4
- 238000005553 drilling Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 239000012855 volatile organic compound Substances 0.000 description 2
- 206010033799 Paralysis Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003079 shale oil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a device and a method for treating high-oil colloid-containing sewage, belonging to the technical field of oil field water treatment. The device comprises a heat source device, a pre-separation oil collecting tank, a glue gathering and decoloring tank, a flocculation water purification tank and a dosing device; when the device is operated, the pre-separation oil collection tank is heated and powered, a polymerized gel decoloring agent is added into the polymerized gel decoloring tank, and a flocculating agent and a coagulant aid are added into the flocculation water purification tank; the method comprises the steps of heating, temperature rise, vortex and micro-vortex separation, turbulent flow and micro-vortex floating air flotation oil removal and coagulation, electronic disintegration of emulsified particles, dosing, glue accumulation, decoloration and flocculation, adsorption coalescence and sedimentation separation, and has the advantages of multiple functions, less dosing amount and good effect; the oil content of the oil sludge is less than 2 percent; the water content in the oil is less than 30 percent; the oil content and suspended matter in water are less than 30mg/L, and the problem of purification treatment of oil field high oil content colloid sewage is effectively solved.
Description
Technical Field
The invention relates to a device and a method for treating high-oil colloid-containing sewage, belonging to the technical field of oil field water treatment.
Background
Along with the development of a world shale oil and gas field, the difficulty of drilling and the fracturing workload are increased, the drilling waste liquid and the fracturing waste liquid are also increased, the amount of the waste liquid is increased, a large amount of waste liquid is remained in the well after drilling and fracturing, and enters an oil field sewage treatment system after production, so that the system of sewage is paralyzed and cannot be treated, and hidden dangers are brought to the safety production of the oil field.
To solve this problem and to make the oil field safe in production and increase the development benefit, a new oil-sludge-water separator, patent No. of chinese patent was selected: 201420624756.9, although the water purification effect is very good, the environment is polluted by Volatile Organic Compounds (VOCs), so that the water purification device does not meet the environmental protection requirement and is forbidden to be used. In addition, the device is operated discontinuously, so that the automation and intelligent management are inconvenient to implement.
Disclosure of Invention
The invention aims to provide a high-oil-content colloid sewage treatment device and a method, which aim to solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the following technical scheme:
a high oil content colloid sewage treatment device comprises a heat source device, a pre-separation oil collecting tank, a colloid gathering and decoloring tank, a flocculation water purification tank, a coagulant aid dosing device, a flocculant dosing device and a colloid gathering and decoloring agent dosing device, wherein an inlet of a lift pump is connected with a sewage source, an outlet of the lift pump is connected with an inlet of the pre-separation oil collecting tank, an outlet of the pre-separation oil collecting tank is connected with an inlet of the colloid gathering and decoloring tank, an outlet of the colloid gathering and decoloring tank is connected with an inlet of the flocculation water purification tank, and an outlet of the flocculation water purification tank is connected with the purification water tank; sludge discharge ports of the pre-separation oil collecting tank, the glue gathering and decoloring tank and the flocculation water purifying tank are connected with an inlet of a sludge concentration device through a sludge discharge manifold; oil collecting ports of the pre-separation oil collecting tank, the glue gathering and decoloring tank and the flocculation water purifying tank are connected with an inlet of an oil collecting device through an oil collecting manifold; the outlet of the polymerized gel decolorant dosing device is connected with the inlet of the polymerized gel decoloration tank, and the outlet of the flocculating agent dosing device and the outlet of the coagulant aid dosing device are connected with the inlet of the flocculation water purification tank; the outlet of the heat source device is connected with the heat source inlet of the pre-separation oil collecting tank, and the inlet of the heat source device is connected with the heat source outlet of the pre-separation oil collecting tank.
As a further scheme of the invention: the pre-separation oil collecting tank is a vertical round tank, a lower sludge discharge pipe orifice A is arranged at the center of the bottom of the tank, and an upper sludge discharge pipe orifice A is arranged on the circumference above the lower sludge discharge pipe orifice A; the lower part of the tank cylinder is provided with a secondary electric cation and elimination water treatment device, the upper circumference of the secondary electric cation and elimination water treatment device is provided with a liquid inlet pipe orifice, the middle lower part of the tank cylinder is provided with a water outlet pipe orifice A, the upper circumference of the liquid inlet pipe orifice is provided with a heat source outlet, the opposite side of the heat source outlet ring is provided with a heat source inlet, the upper circumference of the heat source inlet is provided with a primary electric cation and elimination water treatment device, and the center of the tank top is provided with an oil collecting pipe orifice A; the center in the tank is provided with a vortex tube, the outside of the middle lower part of the vortex tube is provided with a cap type sedimentation tube A, and the upper part of the cap type sedimentation tube A and the lower part of the bucket-shaped opening of the vortex tube are provided with an annular body micro-rotary-floating heat exchange dual-purpose device; the inlet pipe orifice is inserted into the cap type settling cylinder A and is connected with the inlet of the vortex cylinder; the water outlet pipe orifice A is connected with the outlet at the top of the cap type sedimentation cylinder A; the lower sludge discharge pipe orifice A and the upper sludge discharge pipe orifice A are connected in parallel and connected with a sludge discharge manifold; the tank top oil collecting pipe orifice A is connected with an inlet of an oil collecting tank through an oil collecting manifold; the upper inlet of the micro-floating heat exchange dual-purpose device is connected with the heat source inlet, and the lower outlet of the micro-floating heat exchange dual-purpose device is connected with the heat source outlet; the heat source inlet of the pre-separation oil collecting tank is connected with the heat outlet of the heat source device, and the heat source outlet of the pre-separation oil collecting tank is connected with the inlet of the heat source device.
As a further scheme of the invention: the glue gathering and decoloring tank is a vertical circular tank, a lower sludge discharge pipe orifice B is arranged in the center of the bottom of the tank, an upper sludge discharge pipe orifice B is arranged on the circumference above the lower sludge discharge pipe orifice B, a water inlet pipe orifice A is arranged at the middle lower part of the tank barrel, a water outlet pipe orifice is arranged at the middle upper part of the tank barrel, and an oil collecting pipe orifice B is arranged at the top of the tank; a concrete cylinder is arranged in the center of the tank, and a cap type settling cylinder B is arranged outside the concrete cylinder; annular micro-vortex generators are arranged on the cap type sedimentation cylinder B and below the hopper-shaped opening of the coagulation cylinder, mother and child suspension balls A are arranged in an annular space between the lower side of each micro-vortex generator and the outside of the cap type sedimentation cylinder B, and annular hole plates A are arranged below the mother and child suspension balls A and outside the bottom of the cap type sedimentation cylinder B; the water inlet pipe orifice A is inserted into the cap type sedimentation cylinder B and is connected with the inlet of the concrete cylinder; the water outlet pipe orifice is connected with the outlet at the top of the cap type sedimentation cylinder B; the lower sludge discharge pipe orifice B and the upper sludge discharge pipe orifice A are connected in parallel and connected with a sludge discharge manifold; the oil collecting pipe orifice B is connected with an oil collecting manifold.
As a further scheme of the invention: the flocculation water purification tank is a vertical circular tank, the lower part of the tank body is a cone, the lower part of the cone is provided with a lower pipe barrel, the center of the bottom of the lower pipe barrel is provided with a water outlet pipe orifice C, the side surface of the lower pipe barrel is provided with an upper mud discharge pipe orifice C, the top of the tank is provided with an upper pipe barrel, the center of the upper pipe barrel is provided with a water inlet pipe orifice B, the side surface of the upper pipe barrel is provided with an oil receiving pipe orifice C, the tank body is internally provided with a water collecting device, the water collecting device is externally provided with a cap type sedimentation barrel B, the cap bottom of the cap type sedimentation barrel B and the cone are externally provided with annular hole plates B, mother and child suspension balls B are arranged in an annular space on the annular hole plates B, and annular hole plates B are arranged on the top of the annular space and the cap type sedimentation barrel B; the cap type settling cylinder B is provided with a coalescence generator, the center of the coalescence generator is provided with a turbulence generator, and the inlet of the turbulence generator is connected with the water inlet pipe orifice; the upper sludge discharge pipe orifice C is connected with a sludge discharge manifold; the oil collecting pipe orifice C is connected with an oil collecting manifold.
As a further scheme of the invention: the pre-separation oil collecting tank, the glue gathering and decoloring tank and the flocculation water purifying tank are all closed tanks, and the process flow formed by the three tanks is a fully closed flow.
The pre-separation oil collecting tank comprises the following separation steps: heating thin oil, vortex and micro-vortex cooperate to separate oil and remove mud, and electronic breaking emulsified particles.
The separation steps of the polymerized rubber decoloring tank are as follows: adding NaOH to polymerize and decolor, carrying out vortex and micro-vortex synergistic coagulation, carrying out suspension ball adsorption coalescence, and settling and purifying.
The separation steps of the flocculation water purification tank are as follows: adding PAC flocculant and PAM coagulant aid, adopting turbulent air flotation and micro-rotary flotation to flocculate, adsorbing and coalescing suspension balls, settling and purifying.
Compared with the prior art, the invention has the beneficial effects that: the method comprises a heating temperature raising method, a vortex and micro-vortex separation method, a turbulent and micro-vortex air flotation oil removal and coagulation method, an electronic disintegration emulsified particle method, a drug-added glue accumulation decoloring method, a drug-added flocculation method, an adsorption coalescence method and a sedimentation separation method, and has the advantages of multiple functions, less drug-added amount and good effect; the oil content of the oil sludge is less than 2 percent; the water content in the oil is less than 30 percent; the oil content and suspended matter in water are less than 30mg/L, and the problem of purification treatment of oil field high oil content colloid sewage is effectively solved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of a pre-separation oil receiving tank;
FIG. 3 is a view of the internal structure of a pre-separation oil collecting tank;
FIG. 4 is an outline view of a gel decolorizing tank;
FIG. 5 is a view showing the internal structure of a decoloring tank for collecting glue;
FIG. 6 is an outline view of a flocculation water purification tank;
FIG. 7 is a view showing the internal structure of a flocculation water purification tank.
In the figure: 1. the device comprises a heat source device, 2 a pre-separation oil collecting tank, 3 a glue gathering decolorizing tank, 4 a flocculation water purification tank, 5 a coagulant aid dosing device, 6 a flocculating agent dosing device, 7 a glue gathering decolorizing agent dosing device, 8 a lower sludge discharge pipe orifice A, 9 a secondary electric cation removal water treatment device, 10 a liquid inlet pipe orifice, 11 a heat source outlet, 12 a primary electric cation removal water treatment device, 13 an oil collecting pipe orifice A, 14 a heat source inlet, 15 a water outlet pipe orifice A, 16 an upper sludge discharge pipe orifice A, 17 a vortex cylinder, 18 an annular micro-spiral-floating heat exchange dual-purpose device, 19 a cap type settling cylinder A, 20 a lower sludge discharge pipe orifice B, 21 a water inlet pipe orifice A, 22 an oil collecting pipe orifice B, 23 a water outlet pipe orifice B, 24 an upper sludge discharge pipe orifice B, 25 a mother and child suspension ball A, 26 a micro-vortex generator, 27 a coagulation cylinder, 28 a cap type settling cylinder B, 29 an annular pore plate A, 23 an annular pore plate A, 24 a water outlet pipe orifice B, 24 a lower sludge discharge pipe orifice B, 24, a vortex cylinder, a vortex generator, a vortex cylinder, a heat source, 30. The device comprises an upper pipe barrel, 31 water inlet nozzles B, 32 oil collecting nozzles C, 33 upper sludge discharge nozzles C, 34 water outlet nozzles C, 35 lower pipe barrel, 36 cone, 37 mother and child suspension balls B, 38 coalescence generator, 39 turbulence generator, 40 water collecting device, 41 cap type settling barrel C, 42 annular pore plate B.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely explained below with reference to the drawings in the embodiments of the present invention.
As shown in fig. 1, a high oil content colloid sewage treatment device comprises a heat source device 1, a pre-separation oil collecting tank 2, a colloid-gathering decolorizing tank 3, a flocculation water purification tank 4, a coagulant aid dosing device 5, a flocculant dosing device 6 and a colloid-gathering decolorizing agent dosing device 7, wherein the inlet of a lift pump is connected with a sewage source, the outlet of the lift pump is connected with the inlet of the pre-separation oil collecting tank 2, the outlet of the pre-separation oil collecting tank 2 is connected with the inlet of the colloid-gathering decolorizing tank 3, the outlet of the colloid-gathering decolorizing tank 3 is connected with the inlet of the flocculation water purification tank 4, and the outlet of the flocculation water purification tank 4 is connected with the purification water tank; the sludge discharge ports of the pre-separation oil collecting tank 2, the glue gathering and decoloring tank 3 and the flocculation water purification tank 4 are connected with the inlet of a sludge concentration device (not shown) through a sludge discharge manifold; oil collecting ports of the pre-separation oil collecting tank 2, the glue gathering and decoloring tank 3 and the flocculation water purifying tank 4 are connected with an inlet of an oil collecting device (not shown) through an oil collecting manifold; the outlet of the polymerized gel decolorant dosing device 7 is connected with the inlet of the polymerized gel decoloration tank 3, the outlet of the flocculating agent dosing device 6 and the outlet of the coagulant aid dosing device 5 are connected with the inlet of the flocculation water purification tank 4; an outlet of the heat source device 1 is connected with a heat source inlet of the pre-separation oil collecting tank 2, and an inlet of the heat source device 1 is connected with a heat source outlet of the pre-separation oil collecting tank 2.
As shown in fig. 2 and 3, the pre-separation oil collecting tank 2 is a vertical circular tank, a lower sludge discharge pipe port A8 is arranged at the center of the bottom of the tank, and an upper sludge discharge pipe port a16 is arranged on the circumference above the lower sludge discharge pipe port A8; the lower part of the tank cylinder is provided with a secondary electric cation and elimination water treatment device 9, the upper circumference of the secondary electric cation and elimination water treatment device 9 is provided with a liquid inlet pipe orifice 10, the middle lower part of the tank cylinder is provided with a water outlet pipe orifice A15, the upper circumference of the liquid inlet pipe orifice 10 is provided with a heat source outlet 11, the heat source outlet 11 is annularly and oppositely provided with a heat source inlet 14, the upper circumference of the heat source inlet 14 is provided with a primary electric cation and elimination water treatment device 12, and the center of the top of the tank is provided with an oil collecting pipe orifice A13; a vortex cylinder 17 is arranged at the center in the tank, a cap type settling cylinder A19 is arranged outside the middle lower part of the vortex cylinder 17, and an annular body micro-rotary-floating heat exchange dual-purpose device 18 is arranged at the upper part of the cap type settling cylinder A19 and the lower part of the hopper-shaped opening of the vortex cylinder 17; the inlet pipe orifice 10 penetrates through the cap type settling cylinder A19 to be connected with the inlet of the vortex cylinder 17; the water outlet pipe mouth A15 is connected with the outlet at the top of the cap type settling cylinder A19; the lower sludge discharge pipe opening A8 and the upper sludge discharge pipe opening A16 are connected in parallel and are connected with a sludge discharge manifold (not shown); the tank top oil collecting pipe orifice A13 is connected with an inlet of an oil collecting tank (not shown) through an oil collecting manifold; the upper inlet of the micro-floating heat exchange dual-purpose device 18 is connected with the heat source inlet 14, and the lower outlet of the micro-floating heat exchange dual-purpose device 18 is connected with the heat source outlet 11; the heat source inlet 14 of the pre-separation oil-collecting tank 2 is connected with the heat outlet of the heat source device 1, and the heat source outlet 11 of the pre-separation oil-collecting tank 2 is connected with the inlet of the heat source device 1.
As shown in fig. 4 and 5, the glue-gathering decoloring tank 3 is a vertical circular tank, a lower sludge discharge pipe orifice B20 is arranged at the center of the bottom of the tank, an upper sludge discharge pipe orifice B24 is arranged on the circumference above the lower sludge discharge pipe orifice B20, a water inlet pipe orifice a21 is arranged at the middle lower part of the tank barrel, a water outlet pipe orifice 23 is arranged at the middle upper part of the tank barrel, and an oil collecting pipe orifice B22 is arranged at the top of the tank; a concrete cylinder 27 is arranged in the center of the tank, and a cap type settling cylinder B28 is arranged outside the concrete cylinder 27; annular micro-vortex generators 26 are arranged on the cap type settling cylinder B28 and below a hopper-shaped opening of the concrete cylinder 27, mother and child suspension balls A25 are arranged in an annular space between the lower edge of each micro-vortex generator 26 and the outside of the cap type settling cylinder B28, and annular hole plates A29 are arranged below the mother and child suspension balls A25 and at the bottom of the cap type settling cylinder B28; the water inlet pipe orifice A21 penetrates through the cap type settling cylinder B28 to be connected with the inlet of the concrete cylinder 27; the water outlet pipe opening B23 is connected with the outlet at the top of the cap type settling cylinder B28; the lower sludge discharge pipe port B20 and the upper sludge discharge pipe port B24 are connected in parallel and are connected with a sludge discharge manifold (not shown); the manifold B22 is connected to a manifold (not shown).
As shown in fig. 6 and 7, the flocculation water purification tank 4 is a vertical circular tank, the lower part of the tank body is a cone 36, the lower part of the cone 36 is provided with a lower pipe barrel 35, the center of the bottom of the lower pipe barrel 35 is provided with a water outlet pipe port C34, the side surface of the lower pipe barrel 35 is provided with an upper mud discharge pipe port C33, the tank top is provided with an upper pipe barrel 30, the center of the upper pipe barrel 30 is provided with a water inlet pipe port B31, the side surface of the upper pipe barrel 30 is provided with an oil receiving pipe port C32, the tank body is internally provided with a water collection device 40, the water collection device 40 is externally provided with a cap type sedimentation barrel C41, the cap bottom of the cap type sedimentation barrel C41 and the cone are externally provided with an annular hole plate B42, an annular space on the annular hole plate B42 is internally provided with mother and child suspension balls B37, and the top of the annular space and the cap type sedimentation barrel C41 are externally provided with an annular hole plate B42; the cap type settling cylinder C41 is provided with a coalescence generator 38, the center of the coalescence generator 38 is provided with a turbulence generator 39, and the inlet of the turbulence generator 39 is connected with a water inlet pipe opening B31; the upper sludge discharge pipe orifice C33 is connected with a sludge discharge manifold (not shown); the oil collecting pipe port C32 is connected with an oil collecting manifold (not shown).
The method for treating the high-oil colloid-containing sewage by using the device comprises the following steps: the pre-separation oil collecting tank 2, the glue gathering and decoloring tank 3 and the flocculation water purifying tank 4 are all closed tanks, and the process flow of the three tanks is a fully closed flow.
The pre-separation oil collecting tank 2 comprises the following separation steps: heating thin oil, vortex and micro-vortex cooperate to separate oil and remove mud, and electronic breaking emulsified particles.
The separation steps of the poly-gel decoloring tank 3 are as follows: adding NaOH to polymerize and decolor, carrying out vortex and micro-vortex synergistic coagulation, carrying out suspension ball adsorption coalescence, and settling and purifying.
The separation steps of the flocculation water purification tank 4 are as follows: adding PAC flocculant and PAM coagulant aid, adopting turbulent air flotation and micro-rotary flotation to flocculate, adsorbing and coalescing suspension balls, settling and purifying.
The method comprises a heating temperature raising method, a vortex and micro-vortex separation method, a turbulent and micro-vortex air flotation oil removal and coagulation method, an electronic disintegration emulsified particle method, a drug-added glue accumulation decoloring method, a drug-added flocculation method, an adsorption coalescence method and a sedimentation separation method, and has the advantages of multiple functions, less drug-added amount and good effect; the oil content of the oil sludge is less than 2 percent; the water content in the oil is less than 30 percent; the oil content and suspended matter in water are less than 30mg/L, and the problem of purification treatment of oil field high oil content colloid sewage is effectively solved.
The foregoing is a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that variations, modifications, substitutions and alterations can be made in the embodiment without departing from the principles and spirit of the invention.
Claims (5)
1. The utility model provides a high oil contains colloid sewage treatment plant, includes heat source device (1), preseparation oil recovery jar (2), gathers gluey decoloration jar (3), flocculation water purification jar (4), coagulant aid charge device (5), flocculating agent charge device (6), gathers gluey decolorant charge device (7), characterized by: the inlet of a lift pump is connected with a sewage source, the outlet of the lift pump is connected with the inlet of a pre-separation oil collecting tank (2), the outlet of the pre-separation oil collecting tank (2) is connected with the inlet of a glue gathering and decoloring tank (3), the outlet of the glue gathering and decoloring tank (3) is connected with the inlet of a flocculation water purification tank (4), and the outlet of the flocculation water purification tank (4) enters a purification water tank; sludge discharge ports of the pre-separation oil collecting tank (2), the glue gathering and decoloring tank (3) and the flocculation water purifying tank (4) are connected with an inlet of a sludge concentration device through a sludge discharge manifold; oil collecting ports of the pre-separation oil collecting tank (2), the glue gathering and decoloring tank (3) and the flocculation water purifying tank (4) are connected with an inlet of an oil collecting device through an oil collecting manifold; the outlet of the polymerized gel decolorant dosing device (7) is connected with the inlet of the polymerized gel decoloration tank (3), the outlet of the flocculating agent dosing device (6) and the outlet of the coagulant aid dosing device (5) are connected with the inlet of the flocculation water purification tank (4); the outlet of the heat source device (1) is connected with the heat source inlet of the pre-separation oil collecting tank (2), and the inlet of the heat source device (1) is connected with the heat source outlet of the pre-separation oil collecting tank (2).
2. The high oil content colloid sewage treatment device according to claim 1, which is characterized in that: the pre-separation oil collecting tank (2) is a vertical round tank, the center of the bottom of the tank is provided with a lower sludge discharge pipe orifice A (8), and the circumference above the lower sludge discharge pipe orifice A (8) is provided with an upper sludge discharge pipe orifice A (16); the lower part of the tank cylinder is provided with a secondary electric cation and elimination water treatment device (9), the upper circumference of the secondary electric cation and elimination water treatment device (9) is provided with a liquid inlet pipe orifice (10), the middle lower part of the tank cylinder is provided with a water outlet pipe orifice A (15), the upper circumference of the liquid inlet pipe orifice (10) is provided with a heat source outlet (11), the heat source outlet (11) is annularly and oppositely provided with a heat source inlet (14), the upper circumference of the heat source inlet (14) is provided with a primary electric cation and elimination water treatment device (12), and the center of the top of the tank is provided with an oil collecting pipe orifice A (13); a vortex tube (17) is arranged at the center in the tank, a cap type settling tube A (19) is arranged outside the middle lower part of the vortex tube (17), and an annular body micro-rotary-floating heat exchange dual-purpose device (18) is arranged at the upper part of the cap type settling tube A (19) and the lower part of a bucket-shaped opening of the vortex tube (17); the liquid inlet pipe orifice (10) is inserted into the cap type settling cylinder A (19) and is connected with the inlet of the vortex cylinder (17); the water outlet pipe orifice A (15) is connected with the top outlet of the cap type sedimentation cylinder A (19); the lower sludge discharge pipe orifice A (8) and the upper sludge discharge pipe orifice A (16) are connected in parallel and connected with a sludge discharge manifold; the tank top oil collecting pipe orifice A (13) is connected with an inlet of an oil collecting tank through an oil collecting manifold; the upper inlet of the micro-floatation heat exchange dual-purpose device (18) is connected with the heat source inlet (14), and the lower outlet of the micro-floatation heat exchange dual-purpose device (18) is connected with the heat source outlet (11); a heat source inlet (14) of the pre-separation oil collecting tank (2) is connected with a heat outlet of the heat source device (1), and a heat source outlet (11) of the pre-separation oil collecting tank (2) is connected with an inlet of the heat source device (1).
3. The high oil content colloid sewage treatment device according to claim 1, which is characterized in that: the glue-gathering decoloring tank (3) is a vertical circular tank, a lower sludge discharge pipe orifice B (20) is arranged at the center of the bottom of the tank, an upper sludge discharge pipe orifice B (24) is arranged on the circumference above the lower sludge discharge pipe orifice B (20), a water inlet pipe orifice A (21) is arranged at the middle lower part of the tank barrel, a water outlet pipe orifice (23) is arranged at the middle upper part of the tank barrel, and an oil collecting pipe orifice B (22) is arranged at the top of the tank; a concrete cylinder (27) is arranged in the center of the tank, and a cap type settling cylinder B (28) is arranged outside the concrete cylinder (27); annular micro-vortex generators (26) are arranged on the cap type sedimentation cylinder B (28) and below a hopper-shaped opening of the concrete cylinder (27), mother-child suspension balls A (25) are arranged in annular spaces between the lower edge of each micro-vortex generator (26) and the outside of the cap type sedimentation cylinder B (28), and annular hole plates A (29) are arranged below the mother-child suspension balls A (25) and outside the bottom of the cap type sedimentation cylinder B (28); a water inlet pipe orifice A (21) penetrates through a cap type settling cylinder B (28) to be connected with an inlet of a concrete cylinder (27); the water outlet pipe orifice B (23) is connected with an outlet at the top of the cap type sedimentation cylinder B (28); the lower sludge discharge pipe orifice B (20) and the upper sludge discharge pipe orifice B (24) are connected in parallel and connected with a sludge discharge manifold; the oil collecting pipe orifice B (22) is connected with an oil collecting manifold.
4. The high oil content colloid sewage treatment device according to claim 1, which is characterized in that: the flocculation water purification tank (4) is a vertical circular tank, the lower part of the tank body is a cone (36), the lower part of the cone (36) is provided with a lower pipe barrel (35), the center of the bottom of the lower pipe barrel (35) is provided with a water outlet pipe opening C (34), the side surface of the lower pipe barrel (35) is provided with an upper mud discharge pipe opening C (33), the tank top is provided with an upper pipe barrel (30), the center of the upper pipe barrel (30) is provided with a water inlet pipe opening B (31), the side surface of the upper pipe barrel (30) is provided with an oil receiving pipe opening C (32), the tank body is internally provided with a water collecting device (40), the water collecting device (40) is externally provided with a cap type sedimentation barrel C (41), the cap bottom of the cap type sedimentation barrel C (41) and the cone are externally provided with an annular plate B (42), an annular space on the annular plate B (42) is internally provided with a mother-child suspension ball B (37), and the annular space top and the cap top of the cap type sedimentation barrel C (41) are externally provided with an annular plate B (42); a cap type settling cylinder C (41) is provided with a coalescence generator (38), the center of the coalescence generator (38) is provided with a turbulence generator (39), and the inlet of the turbulence generator (39) is connected with a water inlet pipe orifice B (31); the upper sludge discharge pipe orifice C (33) is connected with a sludge discharge manifold; the oil collecting pipe orifice C (32) is connected with an oil collecting manifold.
5. The method for treating the high oil content colloid sewage treatment device according to claim 1, which is characterized in that: the pre-separation oil collecting tank (2), the glue gathering and decoloring tank (3) and the flocculation water purifying tank (4) are all closed tanks, and the process flow formed by the three tanks is a fully closed flow; the pre-separation oil collecting tank (2) comprises the following separation steps: heating thin oil, carrying out oil separation and mud removal by the cooperation of vortex and micro-vortex, and electronically breaking emulsified particles; the separation steps of the poly-gel decoloring tank (3) are as follows: adding NaOH to polymerize and decolor, carrying out vortex and micro-vortex synergistic coagulation, carrying out suspension ball adsorption coalescence, and settling and purifying; the separation steps of the flocculation water purification tank (4) are as follows: adding PAC flocculant and PAM coagulant aid, adopting turbulent air flotation and micro-rotary flotation to flocculate, adsorbing and coalescing suspension balls, settling and purifying.
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Cited By (1)
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