CN211226451U - Coal chemical wastewater extraction deoiling equipment - Google Patents
Coal chemical wastewater extraction deoiling equipment Download PDFInfo
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- CN211226451U CN211226451U CN201922151038.XU CN201922151038U CN211226451U CN 211226451 U CN211226451 U CN 211226451U CN 201922151038 U CN201922151038 U CN 201922151038U CN 211226451 U CN211226451 U CN 211226451U
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- oil
- extractor
- water
- extraction
- coal chemical
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- 239000002351 wastewater Substances 0.000 title claims abstract description 35
- 238000000605 extraction Methods 0.000 title claims abstract description 32
- 239000003245 coal Substances 0.000 title claims abstract description 25
- 239000000126 substance Substances 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 47
- 239000000945 filler Substances 0.000 claims abstract description 25
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 6
- 238000000409 membrane extraction Methods 0.000 claims abstract 3
- 235000019198 oils Nutrition 0.000 claims description 55
- 239000012528 membrane Substances 0.000 claims description 29
- 235000019476 oil-water mixture Nutrition 0.000 claims description 14
- 239000004743 Polypropylene Substances 0.000 claims description 6
- 239000006185 dispersion Substances 0.000 claims description 6
- -1 polypropylene Polymers 0.000 claims description 6
- 229920001155 polypropylene Polymers 0.000 claims description 6
- 238000003809 water extraction Methods 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 abstract description 6
- 238000000926 separation method Methods 0.000 abstract description 3
- 238000004065 wastewater treatment Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 48
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 8
- 229910021529 ammonia Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 150000002989 phenols Chemical class 0.000 description 3
- 230000008929 regeneration Effects 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- ZAFNJMIOTHYJRJ-UHFFFAOYSA-N Diisopropyl ether Chemical compound CC(C)OC(C)C ZAFNJMIOTHYJRJ-UHFFFAOYSA-N 0.000 description 1
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 1
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 231100000086 high toxicity Toxicity 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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- Extraction Or Liquid Replacement (AREA)
Abstract
The utility model discloses a coal chemical wastewater extraction deoiling equipment, including membrane extraction ware, tubular extractor and oil water clarifier, the entry of the exit linkage tubular extractor of membrane extraction ware, the entry of the exit linkage oil water clarifier of tubular extractor, oil water clarifier are equipped with extraction looks export and the export of extraction raffinate looks. The oil-water clarifier is internally provided with a water inlet distributor, a flow stabilizing plate, a plate corrugated filler and a grating filler in sequence from a water inlet to a water outlet. The utility model discloses the equipment volume ratio is smaller, and the extraction deoiling rate is high and oil-water separation is effectual, can replace the mechanical filtration and the greatly reduced running cost among the current coal chemical wastewater treatment.
Description
Technical Field
The utility model relates to a waste water treatment technical field especially relates to a coal chemical industry waste water extraction deoiling equipment.
Background
The coal chemical wastewater has the characteristics of large water quantity, high toxicity and the like, and can be discharged only after being qualified. At present, the coal chemical industry wastewater treatment mainly comprises oil removal pretreatment, deacidification and ammonia distillation, extraction and dephenolization, biochemical treatment, advanced treatment and other working sections.
The coal chemical industry wastewater contains more phenols, carbon dioxide and ammonia, also contains a certain amount of oils, the content of the oils is more than 200-2000 mg/L, and the components are more complex and comprise organic matters such as phenols, ketones, olefins and long-chain alkanes. In coal chemical wastewater, oils exist in the forms of dissolved oil, emulsified oil, dispersed oil, and floating oil. Oil removal and filtration can remove most of the oil slick, but there is no removal capability for dissolved, emulsified and dispersed oils. At present, most of floating oil is removed by oil separation filtration in the pretreatment of coal chemical wastewater, but other oils cannot be removed. In order to increase the removal rate of oils, many plants use filtration processes to remove the oils. However, because the oil content in the sewage is high, the filter is easy to block, frequent back flushing and regeneration are needed, and steam treatment is needed during regeneration, so that the energy consumption is very high. Moreover, even if the oil removal rate is limited by filtration, usually not more than 50%, more oil remains after filtration, and the fouling problems of the tower internals and heat exchangers are not fundamentally improved.
SUMMERY OF THE UTILITY MODEL
In order to solve the above-mentioned defects, the utility model aims to provide a coal chemical industry waste water extraction deoiling equipment gets rid of most oils in the coal chemical industry waste water through the extraction to the great scale deposit problem of deacidification ammonia still and heat exchanger of alleviating.
In order to achieve the above object, the utility model discloses a following technical scheme realizes: the utility model provides a coal chemical industry waste water extraction deoiling equipment, includes membrane extractor, tubular extractor and oil water clarifier, the export of membrane extractor connects the entry of tubular extractor, the exit linkage oil water clarifier's of tubular extractor entry, oil water clarifier is equipped with extract phase outlet and raffinate phase outlet.
Further, the membrane extractor comprises a wastewater inlet, an extractant inlet, an oil-water mixture outlet and a flat plate type microporous dispersion membrane.
Further, the tube extractor includes a tube extractor inlet, a tube extractor outlet, and an internals.
Furthermore, the cross-sectional dimension of the tubular extractor is the same as that of the membrane extractor, and the tubular extractor inlet of the tubular extractor is directly connected with the oil-water mixture outlet of the membrane extractor.
Further, the inner member is a stainless steel plate corrugated filler or a grid filler.
Furthermore, a water inlet distributor, a flow stabilizing plate, a plate corrugated filler and a grating filler are sequentially arranged in the oil water clarifier from a water inlet to a water outlet, and an overflow port and an interface monitor are arranged on the oil water clarifier.
Further, the plate corrugated packing is made of polypropylene.
Further, the grid filler is made of polypropylene.
The dephenolizing extracting agents such as methyl isobutyl ketone, diisopropyl ether and the like have good extraction effect on the oils in the coal chemical industry wastewater, have high distribution coefficient, and can remove most of the oils through single-stage extraction. Therefore, when the method is used for extracting and removing oil from coal chemical wastewater, a higher multistage countercurrent extraction tower is not needed, and the aim can be achieved by utilizing single-stage extraction. The extraction and oil removal equipment utilizes the membrane extractor to disperse the extracting agent into micron-sized oil drops, forms a great oil-water contact mass transfer area, and can finish oil removal and extraction in water in a short time; the tubular extractor can enable the extractant liquid drops to continuously contact with the wastewater; after extraction is finished, the oleophilic filler in the oil-water clarifier is used for efficiently separating the extractant from the wastewater, so that the influence of oil-water entrainment on subsequent working sections is avoided.
The utility model has the advantages that: the volume of the equipment is small, the extraction efficiency is high, and the efficient separation and clarification of oil and water can be realized after extraction. Because of the high-efficiency oil removal performance of the equipment, the oil removal filter with high operation cost in the prior art can be replaced, and the operation cost is greatly reduced; the equipment has small volume and can be conveniently added into the prior art.
In addition, in the process of extraction and oil removal, more phenols can be removed, the load of a subsequent extraction tower is greatly reduced, the phenol content of the effluent of the extraction tower is reduced, and the subsequent advanced treatment and recycling of sewage are facilitated.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the membrane extractor of the present invention.
Fig. 3 is a schematic structural diagram of the tube extractor of the present invention.
Wherein: 1. the device comprises a membrane extractor, 2, a tubular extractor, 3, an oil-water clarifier, 4, an inlet, 5, a water inlet distributor, 6, a flow stabilizing plate, 7, plate corrugated filler, 8, grid filler, 9, an overflow port, 10, an extract phase outlet, 11, a raffinate phase outlet, 12, an interface monitor, 13, a wastewater inlet, 14, an extractant inlet, 15, an oil-water mixture outlet, 16, a flat microporous dispersion membrane, 17, a tubular extractor inlet, 18, a tubular extractor outlet, 19 and an inner member.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1, an extraction and oil removal device for coal chemical wastewater comprises a membrane extractor 1, a tubular extractor 2 and an oil-water clarifier 3, wherein an oil-water mixture outlet 15 of the membrane extractor 1 is connected with a tubular extractor inlet 17 of the tubular extractor 2, a tubular extractor outlet 18 of the tubular extractor 2 is connected with an inlet 4 of the oil-water clarifier 3, and the oil-water clarifier 3 is provided with two outlets, namely an extract phase outlet 10 and a raffinate phase outlet 11. The oil water clarifier 3 is internally provided with a water inlet distributor 5, a flow stabilizing plate 6, a plate ripple filler 7 and a grating filler 8 in sequence from a water inlet to a water outlet, and the oil water clarifier 3 is provided with an overflow port 9 and an interface monitor 12. Wherein, the plate corrugated filler 7 is made of polypropylene, and the grid filler 8 is made of polypropylene.
As shown in fig. 2, the enlarged view of the membrane extractor 1, the membrane extractor 1 includes a wastewater inlet 13, an extractant inlet 14, an oil-water mixture outlet 15, and a flat microporous dispersion membrane 16.
As shown in fig. 3, an enlarged view of the tube extractor 2, the tube extractor 2 comprises a tube extractor inlet 17, a tube extractor outlet 18 and internals 19. The inner member 19 is a stainless steel plate corrugated filler or a grid filler. The sectional dimension of the tubular extractor 2 is the same as that of the membrane extractor 1, and the tubular extractor inlet 17 of the tubular extractor 2 is directly connected with the oil-water mixture outlet 15 of the membrane extractor 1.
When the device works, the coal chemical industry wastewater enters the membrane extractor 1 from the wastewater inlet 13 of the membrane extractor 1. Simultaneously, the extractant enters the membrane extractor 1 from the extractant inlet 14. Through the dispersion of the membrane pores of the flat-plate type microporous dispersion membrane 16 and the shearing of the wastewater, a large amount of micron-sized extractant droplets are quickly formed, a huge two-phase contact area is generated, and the extraction is started. The oil-water mixture then enters the tube extractor 2 from the oil-water mixture outlet 15 of the membrane extractor 1 and the tube extractor inlet 17 of the tube extractor 2. Under the action of the inner component 19, the extractant remains as small droplets and continues to be extracted, and after passing through the tubular extractor 2, the extraction and oil removal are substantially completed. Finally, the oil-water mixture enters the oil-water clarifier 3 from the outlet 18 of the tubular extractor 2 and the inlet 4 of the oil-water clarifier 3. In the oil-water clarifier 3, the oil-water mixture firstly passes through the water inlet distributor 5 to uniformly distribute the feed, and then passes through the stabilizing plate 6 to more uniformly distribute the oil-water mixture. Because the section of the oil-water clarifier 3 is larger, the flow velocity of the oil-water mixture is rapidly reduced, the oil-water two phases are separated, the extractant floats upwards and gradually coalesces, and the wastewater flows downwards relatively. Under the action of the oleophilic plate corrugated packing 7, oil drops in water are easier to gather on the surface of the packing, and gradually float upwards after large oil drops are formed. After passing through the plate corrugated filler 7, the waste water passes through the grid filler 8, on one hand, small oil drops remained in the waste water are further condensed and removed, and on the other hand, large oil drops are condensed and combined on the upper part of the filler to form a continuous oil phase. Then, the oil phase flows out through an overflow port 9 and an extraction phase outlet 10 to remove an extractant regeneration section; the lower layer of clear wastewater without extractant oil drops flows out through a bottom raffinate phase outlet 11 to an ammonia distillation deacidification section.
The utility model has the outstanding advantages that the equipment volume is small, and the equipment can be conveniently added into the prior art; the oil removal rate of extraction is high, and the oil removal filter with high operation cost in the process can be replaced, so that the operation cost is greatly reduced.
The aforesaid only be the basic principle of the utility model, it is not right the utility model discloses do any restriction, all foundation the utility model discloses carry out equal change and decoration to it, all within this patent technical protection scheme's scope.
Claims (8)
1. The utility model provides a coal chemical industry waste water extraction deoiling equipment which characterized in that: the membrane extraction device comprises a membrane extractor, a tubular extractor and an oil-water clarifier, wherein an outlet of the membrane extractor is connected with an inlet of the tubular extractor, an outlet of the tubular extractor is connected with an inlet of the oil-water clarifier, and the oil-water clarifier is provided with an extract phase outlet and an extract raffinate phase outlet.
2. The coal chemical industry wastewater extraction oil removal equipment as claimed in claim 1, wherein: the membrane extractor comprises a wastewater inlet, an extractant inlet, an oil-water mixture outlet and a flat plate type microporous dispersion membrane.
3. The coal chemical industry wastewater extraction oil removal equipment as claimed in claim 1, wherein: the tubular extractor includes a tubular extractor inlet, a tubular extractor outlet, and an internals.
4. The coal chemical industry wastewater extraction oil removal equipment as claimed in claim 1, wherein: the cross-sectional dimension of the tubular extractor is the same as that of the membrane extractor, and the tubular extractor inlet of the tubular extractor is directly connected with the oil-water mixture outlet of the membrane extractor.
5. The coal chemical industry wastewater extraction oil removal equipment as claimed in claim 3, wherein: the inner member is a stainless steel plate corrugated filler or a grid filler.
6. The coal chemical industry wastewater extraction oil removal equipment as claimed in claim 1, wherein: the oil-water clarifier is internally provided with a water inlet distributor, a flow stabilizing plate, plate corrugated fillers and grid fillers in sequence from a water inlet to a water outlet, and the oil-water clarifier is provided with an overflow port and an interface monitor.
7. The coal chemical industry wastewater extraction oil removal equipment as claimed in claim 6, wherein: the plate corrugated filler is made of polypropylene.
8. The coal chemical industry wastewater extraction oil removal equipment as claimed in claim 6, wherein: the grid filler is made of polypropylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922151038.XU CN211226451U (en) | 2019-12-05 | 2019-12-05 | Coal chemical wastewater extraction deoiling equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922151038.XU CN211226451U (en) | 2019-12-05 | 2019-12-05 | Coal chemical wastewater extraction deoiling equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211226451U true CN211226451U (en) | 2020-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922151038.XU Active CN211226451U (en) | 2019-12-05 | 2019-12-05 | Coal chemical wastewater extraction deoiling equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211226451U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114506896A (en) * | 2022-01-27 | 2022-05-17 | 华南理工大学 | Application of n-nonanol in separation of emulsified oil in coal chemical oil-containing wastewater and method |
| CN115594241A (en) * | 2022-09-20 | 2023-01-13 | 中冶焦耐（大连）工程技术有限公司（Cn） | Ammonia water tar and oil residue removing device at bottom of ammonia still |
-
2019
- 2019-12-05 CN CN201922151038.XU patent/CN211226451U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114506896A (en) * | 2022-01-27 | 2022-05-17 | 华南理工大学 | Application of n-nonanol in separation of emulsified oil in coal chemical oil-containing wastewater and method |
| CN114506896B (en) * | 2022-01-27 | 2023-02-14 | 华南理工大学 | Application of n-nonanol in separation of emulsified oil in coal chemical oil-containing wastewater and method |
| CN115594241A (en) * | 2022-09-20 | 2023-01-13 | 中冶焦耐（大连）工程技术有限公司（Cn） | Ammonia water tar and oil residue removing device at bottom of ammonia still |
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