CN109052522A - A kind of glycol production waste water pretreatment system and method - Google Patents
A kind of glycol production waste water pretreatment system and method Download PDFInfo
- Publication number
- CN109052522A CN109052522A CN201810953220.4A CN201810953220A CN109052522A CN 109052522 A CN109052522 A CN 109052522A CN 201810953220 A CN201810953220 A CN 201810953220A CN 109052522 A CN109052522 A CN 109052522A
- Authority
- CN
- China
- Prior art keywords
- extraction
- pipeline
- waste water
- circulating pump
- dimethoxym ethane
- Prior art date
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- 239000002351 wastewater Substances 0.000 title claims abstract description 185
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 238000000605 extraction Methods 0.000 claims abstract description 189
- NKDDWNXOKDWJAK-UHFFFAOYSA-N dimethoxymethane Chemical compound COCOC NKDDWNXOKDWJAK-UHFFFAOYSA-N 0.000 claims abstract description 93
- 238000012544 monitoring process Methods 0.000 claims abstract description 63
- 230000006837 decompression Effects 0.000 claims abstract description 59
- 238000004821 distillation Methods 0.000 claims abstract description 58
- 238000005292 vacuum distillation Methods 0.000 claims abstract description 52
- 239000000446 fuel Substances 0.000 claims abstract description 19
- 238000007726 management method Methods 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 93
- 230000001988 toxicity Effects 0.000 claims description 43
- 231100000419 toxicity Toxicity 0.000 claims description 43
- 238000000926 separation method Methods 0.000 claims description 31
- 229930195733 hydrocarbon Natural products 0.000 claims description 19
- 150000002430 hydrocarbons Chemical class 0.000 claims description 19
- 230000008676 import Effects 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 12
- 230000003647 oxidation Effects 0.000 claims description 11
- 238000007254 oxidation reaction Methods 0.000 claims description 11
- 150000001875 compounds Chemical class 0.000 claims description 9
- 239000012528 membrane Substances 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 7
- -1 methoxyl group Chemical group 0.000 claims description 7
- 238000004064 recycling Methods 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 6
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 claims description 5
- 238000001704 evaporation Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000005191 phase separation Methods 0.000 claims description 4
- 238000002203 pretreatment Methods 0.000 claims description 4
- 238000009833 condensation Methods 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims description 3
- 230000003750 conditioning effect Effects 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 claims description 3
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 claims description 3
- 230000008595 infiltration Effects 0.000 claims description 3
- 238000001764 infiltration Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 3
- 238000009834 vaporization Methods 0.000 claims description 3
- 230000008016 vaporization Effects 0.000 claims description 3
- 239000000284 extract Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000003672 processing method Methods 0.000 claims description 2
- 238000003809 water extraction Methods 0.000 claims description 2
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 claims 1
- 150000001241 acetals Chemical class 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 claims 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 239000010865 sewage Substances 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 description 8
- 239000003245 coal Substances 0.000 description 7
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- 235000019441 ethanol Nutrition 0.000 description 6
- 239000002574 poison Substances 0.000 description 4
- 231100000614 poison Toxicity 0.000 description 4
- 229940093475 2-ethoxyethanol Drugs 0.000 description 2
- 238000003889 chemical engineering Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013070 change management Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/007—Modular design
Landscapes
- 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)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The present invention relates to a kind of glycol production waste water pretreatment system and methods, comprising: the unit of Wastewater Pretreatment containing dimethoxym ethane, extraction phase-separating device, raffinate phase processing unit, the unit of Wastewater Pretreatment containing 2-methyl cellosolve, fuel ratio mixer, automatic control and Internet of Things remote monitoring diagnostic administrative unit.The unit of Wastewater Pretreatment containing dimethoxym ethane is one or more levels decompression distillation system；The unit of Wastewater Pretreatment containing 2-methyl cellosolve is mainly one or more levels extracting system.The present invention removes substances and the resource utilizations such as dimethoxym ethane, the 2-methyl cellosolve in glycol production waste water by vacuum distillation and multitple extraction process efficient, creates conditions for subsequent processing, while reducing sewage treatment operation cost.Be conducive to the operation maintenance management level of raising project using Internet of Things remote monitoring diagnostic technology, ensure that production and operation are gone on smoothly.
Description
Technical field
The present invention relates to a kind of glycol production waste water pretreatment system and methods, especially a kind of long-range by Internet of Things
The glycol production waste water recycling pretreatment system and method for monitoring and diagnosis management, belong to resource and environment filed.
Background technique
Current Coal Chemical Engineering Project is required to wastewater zero discharge.Ethylene glycol is a kind of important basic chemical industry raw material, wherein
It is a certain amount of containing dimethoxym ethane and 2-methyl cellosolve as that can generate in the formaldehyde hydrocarboxylation method ethylene glycol production technology of raw material using coal
High-concentration waste water, it is difficult to directly carry out conventional biochemical treatment, be a difficult point of wastewater zero discharge；Coal Chemical Engineering Project simultaneously
Environmental protection it is with high costs, the higher concentration organic matter contained in above-mentioned waste water have certain value, using materialization, biochemistry or burn
The degradable technology path difficulty of modes such as burning are big, investment operating cost is high, poor reliability, and waste resource, are unfavorable for
It reduces environmentally friendly cost, improve project yield rate；Current coal chemical industry sewage processing item operation management difficulty is larger, long-distance intelligent
It is lower to change management level.
Summary of the invention
The present invention is to solve containing dimethoxym ethane and methoxyl group containing 2- in coal base formaldehyde hydrocarboxylation ethylene glycol production technology
The problems such as pretreatment difficulty of ethyl alcohol high-concentration waste water is big, at high cost, and operation management maintenance difficulties are big.
The present invention provides a kind of glycol production waste water pretreatment system, including waste water containing 2-methyl cellosolve are pre- thus
Processing unit；The unit of Wastewater Pretreatment containing 2-methyl cellosolve includes wastewater equalization pond containing 2-methyl cellosolve, methoxyl group containing 2-
Alcohol wastewater circulating pump, extractant circulating pump, hydro carbons extractant storage tank and at least one level extraction equipment；It is useless containing 2-methyl cellosolve
The water outlet of water conditioning tank is connected by pipeline with the water inlet of the circulating pump of waste water containing 2-methyl cellosolve；When extraction equipment is single
When grade, the water outlet of the circulating pump of waste water containing 2-methyl cellosolve is connected by pipeline with the water inlet of extraction equipment, extraction equipment
Extractant import be connected with the liquid outlet of extractant circulating pump by pipeline；When extraction equipment is multistage, methoxyl group containing 2-
The water outlet of alcohol wastewater circulating pump is connected by pipeline with the water inlet of first order extraction equipment, the extraction of upper level extraction equipment
Remaining phase outlet is connected by pipeline with the raffinate phase import of next stage extraction equipment, and the extraction phase import of upper level extraction equipment is logical
The extraction phase outlet of piping and next stage extraction equipment is connected, the extractant import of afterbody extraction equipment by pipeline and
The outlet of extractant circulating pump is connected；The outlet of hydro carbons extractant storage tank is connected by pipeline with the import of extractant circulating pump.
By adopting the above technical scheme, the organic efficients such as 2-methyl cellosolve in waste water can be separated, water outlet is made to reach subsequent
Processing water inlet requires.
It further include extraction phase-separating device and raffinate phase processing unit as the further improvement scheme of present system；
Extraction phase-separating device is vacuum distillation apparatus, distillation device or infiltration evaporation device；Raffinate phase processing unit is UF membrane
One of device and advanced oxidation device or its tandem compound, or be the tandem compound of membrane separation device and biochemical treatment apparatus, or
For the tandem compound of membrane separation device and advanced oxidation device and biochemical treatment apparatus；When extraction equipment is single-stage, extraction dress
The extraction phase outlet set is connected by pipeline with extraction phase-separating device, and the raffinate phase outlet of extraction equipment passes through pipeline and raffinate
The water inlet of phase processor device is connected；When extraction equipment is multistage, the outlet of first order extraction equipment extraction phase by pipeline with
It extracts phase-separating device to be connected, the raffinate phase outlet of afterbody extraction equipment passes through the water inlet of pipeline and raffinate phase processing unit
Mouth is connected, and the extractant that extraction phase-separating device is isolated returns to hydro carbons extractant storage tank and recycles.Using above-mentioned technical side
Case can efficiently separate out circulation or resource utilization extractant and solute from extraction phase, make raffinate phase water outlet through raffinate
Reach subsequent processing water inlet after the processing of phase processor device to require.
It further include the unit of Wastewater Pretreatment containing dimethoxym ethane as the further improvement scheme of present system；Containing dimethoxym ethane
Wastewater Pretreatment unit includes wastewater equalization pond containing dimethoxym ethane and at least one level decompression distillation system；Every level-one decompression distillation system
Including the circulating pump of waste water containing dimethoxym ethane, heat exchanger, vacuum distillation tower, condenser and vacuum pump；In every level-one decompression distillation system,
The water outlet of the circulating pump of waste water containing dimethoxym ethane is connected by pipeline with the water inlet of heat exchanger, and the water outlet of heat exchanger passes through pipeline
It is connected with the water inlet of vacuum distillation tower, vacuum distillation tower venthole is connected by pipeline with the air intake of condenser, condenser
Exhaust outlet be connected with the air inlet of vacuum pump by pipeline；When decompression distillation system is single-stage, waste water containing dimethoxym ethane is adjusted
The water outlet in pond is connected by pipeline with the water inlet of the waste water containing dimethoxym ethane of decompression distillation system circulating pump, and vacuum distillation tower goes out
Water is further processed by pipeline discharge；When decompression distillation system is multistage, the water outlet of the wastewater equalization pond containing dimethoxym ethane is logical
Piping is connected with the water inlet of the waste water containing dimethoxym ethane of first order decompression distillation system circulating pump, upper level decompression distillation system
Vacuum distillation tower water outlet pass through the water inlet phase of pipeline and the circulating pump of waste water containing dimethoxym ethane of next stage decompression distillation system
Even, the vacuum distillation tower water outlet of afterbody decompression distillation system is further processed by pipeline discharge.Using above-mentioned level-one or
The technical solution of multi-step pressure reduction distillation can separate the organic efficients such as dimethoxym ethane in waste water, water outlet is made to reach subsequent
Processing water inlet requires.
Further improvement side for the high problem of coal chemical industry sewage processing item operation cost, as present system
Case further includes fuel ratio mixer；The solute liquid outlet phase of the inlet of fuel ratio mixer and extraction phase-separating device
Even；The mixing of condensate liquid containing dimethoxym ethane of solute and condenser recycling that extraction phase-separating device is isolated respectively enters fuel ratio
Example mixer mixes resource utilization with fuel in proportion.It by adopting the above technical scheme, can be the 2-methyl cellosolve in waste water
Equal organic resourcesization utilize, and reduce environmentally friendly cost, improve project yield rate.
Big, the low problem of remote intelligent management level for coal chemical industry sewage processing item operation management difficulty, as
The further improvement scheme of present system further includes automatic control and Internet of Things remote monitoring diagnostic administrative unit；Automatic control and Internet of Things
Net remote monitoring diagnostic administrative unit includes automatic control cabinet, teletransmission thermometer, teletransmission vacuum meter, the poison of wastewater biological containing dimethoxym ethane
Property on-line monitoring early-warning apparatus, the toxicity of wastewater biological containing 2-methyl cellosolve on-line monitoring early-warning apparatus, chromacoder and remotely
Monitor terminal；The circulating pump of waste water containing dimethoxym ethane, vacuum pump, the circulating pump of waste water containing 2-methyl cellosolve and extractant circulating pump difference
It is electrically connected with automatic control cabinet；Teletransmission thermometer is mounted on the outlet conduit of heat exchanger；Teletransmission vacuum meter is mounted on decompression and steams
It evaporates on tower；The toxicity of wastewater biological containing dimethoxym ethane on-line monitoring early-warning apparatus is mounted on the outlet conduit of vacuum distillation tower；First containing 2-
Ethoxy-ethanol wastewater biological toxicity on-line monitoring early-warning apparatus is mounted on the outlet conduit of advanced oxidation device；Teletransmission thermometer,
Teletransmission vacuum meter, the toxicity of wastewater biological containing dimethoxym ethane on-line monitoring early-warning apparatus, the toxicity of wastewater biological containing 2-methyl cellosolve are online
Monitoring and warning instrument, chromacoder are electrically connected with automatic control cabinet；Automatic control cabinet is to teletransmission thermometer, teletransmission vacuum
Table, the toxicity of wastewater biological containing dimethoxym ethane on-line monitoring early-warning apparatus, the toxicity of wastewater biological containing 2-methyl cellosolve monitor early warning on-line
The parameter that instrument transmission comes is acquired and is transmitted through the network to remote monitoring terminal after chromacoder is converted；Long-range prison
Control terminal is remote management center computer or mobile monitoring terminal.Using Internet of Things remote monitoring diagnostic administrative skill, favorably
It is monitored in the long-range operation of system, the early warning maintenance and judgement maintenance of failure, raising projector operating and managing is horizontal, ensures production warp
Battalion goes on smoothly.
The present invention also provides a kind of glycol production waste water preprocess methods, including waste water containing 2-methyl cellosolve to locate in advance
Reason method, specific steps are as follows: set single-stage or multistage for extraction equipment；When extraction equipment is single-stage, the second of methoxyl group containing 2-
The water outlet of alcohol wastewater equalization pond is lifted into extraction equipment, hydro carbons extraction through the circulating pump of waste water containing 2-methyl cellosolve by pipeline
Extractant in agent storage tank is lifted into extraction equipment by extractant circulating pump and carries out extraction and separation；When extraction equipment is multistage
When, waste water containing 2-methyl cellosolve enters first order extraction equipment by circulating pump and carries out extraction and separation, hydro carbons extractant storage tank
In extractant by extractant circulating pump be lifted into afterbody extraction equipment carry out extraction and separation, upper level extraction equipment
Raffinate phase next stage extraction equipment entered by pipeline carry out extraction and separation, the extraction phase of next stage extraction equipment passes through pipeline
Extraction and separation are carried out into upper level extraction equipment.
It further include the separation of the extraction phase of waste water containing 2-methyl cellosolve and extraction as the further improvement scheme of the method for the present invention
Remaining phase processor method, specific steps are as follows: when extraction equipment is single-stage, the extraction phase of extraction equipment enters extraction phase by pipeline
Separator extraction agent and solute, the raffinate phase of extraction equipment, which enters raffinate phase processing unit by pipeline, to carry out further
Processing；When extraction equipment is multistage, first order extraction equipment extraction phase enters extraction phase-separating device separation extraction by pipeline
Agent and solute are taken, the raffinate phase of afterbody extraction equipment enters raffinate phase processing unit by pipeline and is further processed, extraction
The extractant that phase-separating device is isolated returns to hydro carbons extractant storage tank and recycles.
It further include pretreatment method for wastewater containing dimethoxym ethane, specific steps as the further improvement scheme of the method for the present invention
Are as follows: single-stage or multistage are set by decompression distillation system；In decompression distillation systems at different levels, the water outlet of heat exchanger by pipeline into
Enter vacuum distillation tower vaporization separation, the organic steam in vacuum distillation tower enters condenser condensation by pipeline and collects, condenser
Incoagulable gas is discharged to keep system vacuum by vacuum pump；When decompression distillation system is single-stage, waste water containing dimethoxym ethane
The water outlet of conditioning tank is lifted into heat exchanger heat temperature raising through the circulating pump of waste water containing dimethoxym ethane of decompression distillation system, vacuum distillation
The water outlet of tower is further processed by pipeline discharge；When decompression distillation system is multistage, the wastewater equalization pond containing dimethoxym ethane goes out
Water is lifted into heat exchanger heat temperature raising through the circulating pump of waste water containing dimethoxym ethane of first order decompression distillation system；Upper level decompression is steamed
The water outlet for evaporating the vacuum distillation tower of system is promoted by pipeline through the circulating pump of waste water containing dimethoxym ethane of next stage decompression distillation system
Into the heat exchanger heat temperature raising of next stage decompression distillation system, the vacuum distillation tower water outlet of afterbody decompression distillation system is logical
Piping discharge is further processed.
It further include extraction phase separation and condensing recovery organic resources as the further improvement scheme of the method for the present invention
Method, concrete measure are as follows: the solute isolated of extraction phase-separating device and the condensate liquid containing dimethoxym ethane of condenser recycling mix or
It respectively enters fuel ratio mixer and mixes resource utilization in proportion with fuel.
It further include automatic control and Internet of Things remote monitoring diagnostic manager as the further improvement scheme of the method for the present invention
Method, concrete measure are as follows: dimethoxym ethane waste water circulating pump, vacuum pump, the circulating pump of waste water containing 2-methyl cellosolve and extractant will be contained and followed
Ring pump is electrically connected with automatic control cabinet respectively；Automatic control cabinet coordinates each equipment work well according to setting program；By teletransmission temperature
Degree meter is mounted on the outlet conduit of heat exchanger, is monitored waste water temperature and is transferred to automatic control cabinet；Teletransmission vacuum meter is installed
On vacuum distillation tower, monitors the vacuum degree of vacuum distillation tower and be transferred to automatic control cabinet；Dimethoxym ethane wastewater biological poison will be contained
Property on-line monitoring early-warning apparatus be mounted on the outlet conduit of vacuum distillation tower, monitoring wastewater biological toxicity simultaneously be transferred to automatic control
Cabinet；The toxicity of wastewater biological containing 2-methyl cellosolve on-line monitoring early-warning apparatus is mounted on the outlet conduit of advanced oxidation device,
Monitoring wastewater biological toxicity is simultaneously transferred to automatic control cabinet；By teletransmission thermometer, teletransmission vacuum meter, the poison of wastewater biological containing dimethoxym ethane
Property on-line monitoring early-warning apparatus, the toxicity of wastewater biological containing 2-methyl cellosolve on-line monitoring early-warning apparatus, chromacoder and oneself
Dynamic control cabinet electrical connection；Automatic control cabinet monitors teletransmission thermometer, teletransmission vacuum meter, the toxicity of wastewater biological containing dimethoxym ethane on-line
The parameter that early-warning apparatus, the toxicity of wastewater biological containing 2-methyl cellosolve on-line monitoring early-warning apparatus transmit is acquired and converts through signal
Remote monitoring terminal is transmitted through the network to after device conversion for remote monitoring diagnostic management.
The beneficial effects of the present invention are: (1) using one or more levels extraction process 2-methyl cellosolve in waste water
Equal organic efficients are separated, and so that water outlet is reached subsequent processing water inlet and are required, ensure subsequent technique trouble-free operation；(2) containing
Extractant and solute in 2-methyl cellosolve waste water extraction phase carry out separation circulation or resource utilization, can reduce environmental protection at
Originally, project yield rate is improved；(3) using one or more levels reduced pressure distillation process the organic efficients such as dimethoxym ethane in waste water point
It separates out and carrys out resource utilization, so that water outlet is reached subsequent processing water inlet and require, can ensure subsequent technique trouble-free operation, while reducing ring
Guaranteed cost improves project yield rate；(4) Internet of Things remote monitoring diagnostic administrative skill, the early warning maintenance and judgement of failure are used
Maintenance is easy to accomplish accurately and timely, projector operating and managing level to can be improved, and ensures that production and operation are gone on smoothly.
Detailed description of the invention
Fig. 1 is system structure diagram of the invention.
In figure: 1, containing dimethoxym ethane wastewater equalization pond, 2, the circulating pump of waste water containing dimethoxym ethane, 3, heat exchanger, 4, teletransmission thermometer,
5, vacuum distillation tower, 6, teletransmission vacuum meter, 7, condenser, 8, vacuum pump, 9, the toxicity of wastewater biological containing dimethoxym ethane on-line monitoring it is pre-
Alert instrument, 10, the toxicity of wastewater biological containing 2-methyl cellosolve on-line monitoring early-warning apparatus, 11, fuel ratio mixer, 12, first containing 2-
Ethoxy-ethanol wastewater equalization pond, 13, extraction phase-separating device, 14, the circulating pump of waste water containing 2-methyl cellosolve, 15, extraction equipment,
16, extractant circulating pump, 17, hydro carbons extractant storage tank, 18, automatic control cabinet, 19, chromacoder, 20, raffinate phase processor
Device, 21, remote monitoring terminal.
Specific embodiment
As shown in Figure 1, a kind of glycol production waste water pretreatment system of the present invention, including contain 2-methyl cellosolve
Wastewater equalization pond 12, the circulating pump of waste water containing 2-methyl cellosolve 14, extractant circulating pump 16, hydro carbons extractant storage tank 17, at least
Level-one extraction equipment 15, extraction phase-separating device 13, raffinate phase processing unit 20, wastewater equalization pond containing dimethoxym ethane 1, at least one level
It is decompression distillation system, fuel ratio mixer 11, automatic control cabinet 18, teletransmission thermometer 4, teletransmission vacuum meter 6, useless containing dimethoxym ethane
Aquatic toxicity monitors early-warning apparatus 9, the toxicity of wastewater biological containing 2-methyl cellosolve on-line monitoring early-warning apparatus 10, signal conversion on-line
Device 19 and remote monitoring terminal 21, each of these grade of decompression distillation system include the circulating pump of waste water containing dimethoxym ethane 2, heat exchanger
3, vacuum distillation tower 5, condenser 7 and vacuum pump 8.
The water outlet of wastewater equalization pond containing 2-methyl cellosolve 12 passes through pipeline and the circulating pump of waste water containing 2-methyl cellosolve
14 water inlet is connected；When extraction equipment 15 is single-stage, the water outlet of the circulating pump of waste water containing 2-methyl cellosolve 14 passes through pipe
Road is connected with the water inlet of extraction equipment 15, and the extractant import of extraction equipment 15 is gone out by pipeline and extractant circulating pump 16
Liquid mouth is connected；When extraction equipment 15 is multistage, the water outlet of the circulating pump of waste water containing 2-methyl cellosolve 14 passes through pipeline and the
The water inlet of level-one extraction equipment 15 is connected, and the raffinate phase outlet of upper level extraction equipment 15 is filled by pipeline and next stage extraction
It sets 15 raffinate phase import to be connected, the extraction phase import of upper level extraction equipment 15 passes through pipeline and next stage extraction equipment 15
Extraction phase outlet is connected, and the extractant import of afterbody extraction equipment 15 passes through the outlet phase of pipeline and extractant circulating pump 16
Even；The outlet of hydro carbons extractant storage tank 17 is connected by pipeline with the import of extractant circulating pump 16.
Extraction phase-separating device 13 is vacuum distillation apparatus, distillation device or infiltration evaporation device；Raffinate phase processor dress
20 are set as one of membrane separation device and advanced oxidation device or its tandem compound, or is membrane separation device and biochemical treatment apparatus
Tandem compound, or the tandem compound for membrane separation device and advanced oxidation device and biochemical treatment apparatus；When extraction equipment 15 is
When single-stage, the extraction phase outlet of extraction equipment 15 is connected by pipeline with extraction phase-separating device 13, the raffinate of extraction equipment 15
Mutually outlet is connected by pipeline with the water inlet of raffinate phase processing unit 20；When extraction equipment 15 is multistage, first order extraction
The outlet of 15 extraction phase of device is connected by pipeline with extraction phase-separating device 13, the raffinate phase outlet of afterbody extraction equipment 15
It is connected by pipeline with the water inlet of raffinate phase processing unit 20, the extractant that extraction phase-separating device 13 is isolated returns to hydro carbons
Extractant storage tank 17 recycles；The water outlet of raffinate phase processing unit 20 is connected by pipeline with aftertreatment device.
In every level-one decompression distillation system, the water outlet of the circulating pump of waste water containing dimethoxym ethane 2 by pipeline and heat exchanger 3 into
The mouth of a river is connected, and the water outlet of heat exchanger 3 is connected by pipeline with the water inlet of vacuum distillation tower 5, and 5 venthole of vacuum distillation tower is logical
Piping is connected with the air intake of condenser 7, and the exhaust outlet of condenser 7 is connected by pipeline with the air inlet of vacuum pump 8；When subtracting
When pressure Distallation systm is single-stage, the water outlet of wastewater equalization pond containing dimethoxym ethane 1 is contracted by the first that contains of pipeline and decompression distillation system
The water inlet of aldehyde waste water circulating pump 2 is connected, and the water outlet of vacuum distillation tower 5 is further processed by pipeline discharge；When vacuum distillation is
When system is multistage, the water outlet of wastewater equalization pond containing dimethoxym ethane 1 contains dimethoxym ethane by pipeline and first order decompression distillation system
The water inlet of waste water circulating pump 2 is connected, and 5 water outlet of vacuum distillation tower of upper level decompression distillation system passes through pipeline and next stage
The water inlet of the circulating pump of waste water containing dimethoxym ethane 2 of decompression distillation system is connected, the vacuum distillation of afterbody decompression distillation system
The water outlet of tower 5 is further processed by pipeline discharge.
The inlet of fuel ratio mixer 11 is connected with the solute liquid outlet of extraction phase-separating device 13；Extraction phase separation
The mixing of condensate liquid containing dimethoxym ethane for solute and condenser 7 recycling that device 13 is isolated respectively enters fuel ratio mixer 11
Resource utilization is mixed in proportion with fuel.
The circulating pump of waste water containing dimethoxym ethane 2, vacuum pump 8, the circulating pump of waste water containing 2-methyl cellosolve 14 and extractant circulating pump
16 are electrically connected with automatic control cabinet 26 respectively；Teletransmission thermometer 4 is mounted on the outlet conduit of heat exchanger 3；Teletransmission vacuum meter 6 is pacified
On vacuum distillation tower 5；The toxicity of wastewater biological containing dimethoxym ethane on-line monitoring early-warning apparatus 9 is mounted on the water outlet of vacuum distillation tower 5
On pipeline；The toxicity of wastewater biological containing 2-methyl cellosolve on-line monitoring early-warning apparatus 10 is mounted on the outlet pipe of advanced oxidation device 20
On road；Teletransmission thermometer 4, teletransmission vacuum meter 6, the toxicity of wastewater biological containing dimethoxym ethane monitor early-warning apparatus 9, the second of methoxyl group containing 2- on-line
Alcohol wastewater biological toxicity on-line monitoring early-warning apparatus 10, chromacoder 19 are electrically connected with automatic control cabinet 18；It automatically controls
Cabinet 18 monitors early-warning apparatus 9, methoxyl group containing 2- on-line to teletransmission thermometer 4, teletransmission vacuum meter 6, the toxicity of wastewater biological containing dimethoxym ethane
The parameter that the on-line monitoring transmission of early-warning apparatus 10 of alcohol wastewater bio-toxicity comes is acquired and after the conversion of chromacoder 19
It is transmitted through the network to remote monitoring terminal 21；Remote monitoring terminal 21 is that remote management center computer or mobile monitor are whole
End.
The implementation method step of glycol production waste water pretreatment system of the present invention are as follows:
Pretreatment method for wastewater containing 2-methyl cellosolve: single-stage or multistage are set by extraction equipment 15；Work as extraction equipment
15 when being single-stage, and the water outlet of wastewater equalization pond containing 2-methyl cellosolve 12 passes through the circulating pump of waste water containing 2-methyl cellosolve by pipeline
14 are lifted into extraction equipment 15, and the extractant in hydro carbons extractant storage tank 17 is lifted into extraction by extractant circulating pump 16
Device 15 carries out extraction and separation；When extraction equipment 15 is multistage, waste water containing 2-methyl cellosolve is by circulating pump 14 into the
Level-one extraction equipment 15 carries out extraction and separation, the extractant in hydro carbons extractant storage tank 17 by extractant circulating pump 16 promoted into
Enter afterbody extraction equipment 15 and carry out extraction and separation, the raffinate phase of upper level extraction equipment 15 enters next stage extraction by pipeline
Device 15 is taken to carry out extraction and separation, the extraction phase of next stage extraction equipment 15, which enters upper level extraction equipment 15 by pipeline, to carry out
Extraction and separation.
The separation of the extraction phase of waste water containing 2-methyl cellosolve and raffinate phase processing method: when extraction equipment 15 is single-stage, extraction
The extraction phase of device 15 is taken to enter extraction 13 extraction agent of phase-separating device and solute, the raffinate of extraction equipment 15 by pipeline
It communicates piping and enters raffinate phase processing unit 20 and be further processed；When extraction equipment 15 is multistage, first order extraction
15 extraction phase of device enters extraction 13 extraction agent of phase-separating device and solute by pipeline, afterbody extraction equipment 15
Raffinate phase enters raffinate phase processing unit 20 by pipeline and is further processed, and the extractant that extraction phase-separating device 13 is isolated returns
Hydro carbons extractant storage tank 17 is returned to recycle；The water outlet of raffinate phase processing unit 20 is discharged by pipeline and carries out subsequent processing.
Pretreatment method for wastewater containing dimethoxym ethane: single-stage or multistage are set by decompression distillation system；In vacuum distillations at different levels
In system, the water outlet of heat exchanger 3 enters the vaporization separation of vacuum distillation tower 5 by pipeline, and the organic steam in vacuum distillation tower 5 is logical
Piping enters the condensation of condenser 7 and collects, and incoagulable gas is discharged by vacuum pump 8 to keep system vacuum in condenser 7；When
When decompression distillation system is single-stage, the water outlet of wastewater equalization pond containing dimethoxym ethane 1 is followed through the waste water containing dimethoxym ethane of decompression distillation system
Ring pump 2 is lifted into 3 heat temperature raising of heat exchanger, and the water outlet of vacuum distillation tower 5 is further processed by pipeline discharge；When decompression is steamed
When to evaporate system be multistage, the water outlet of wastewater equalization pond containing dimethoxym ethane 1 is followed through the waste water containing dimethoxym ethane of first order decompression distillation system
Ring pump 2 is lifted into 3 heat temperature raising of heat exchanger；The water outlet of the vacuum distillation tower 5 of upper level decompression distillation system is passed through by pipeline
The heat exchanger 3 that the circulating pump of waste water containing dimethoxym ethane 2 of next stage decompression distillation system is lifted into next stage decompression distillation system adds
The water outlet of vacuum distillation tower 5 of heat heating, afterbody decompression distillation system is further processed by pipeline discharge.
Extraction phase separation and condensing recovery organic resources method: the solute isolated of extraction phase-separating device 13 and cold
The condensate liquid containing dimethoxym ethane that condenser 7 recycles mixes or respectively enters fuel ratio mixer 11 mixes recycling with fuel in proportion
It utilizes.
Automatic control and Internet of Things remote monitoring diagnostic management method: dimethoxym ethane waste water circulating pump 2, vacuum pump 8, first containing 2- will be contained
Ethoxy-ethanol waste water circulating pump 14 and extractant circulating pump 16 are electrically connected with automatic control cabinet 26 respectively；26 basis of automatic control cabinet
Setting program coordinates each equipment work well；Teletransmission thermometer 4 is mounted on the outlet conduit of heat exchanger 3, monitors waste water temperature
It spends and is transferred to automatic control cabinet 18；Teletransmission vacuum meter 6 is mounted on vacuum distillation tower 5, the vacuum of vacuum distillation tower 5 is monitored
It spends and is transferred to automatic control cabinet 18；Dimethoxym ethane wastewater biological toxicity on-line monitoring early-warning apparatus 9 will be contained and be mounted on vacuum distillation tower 5
Outlet conduit on, monitoring wastewater biological toxicity simultaneously be transferred to automatic control cabinet 18；2-methyl cellosolve wastewater biological poison will be contained
Property on-line monitoring early-warning apparatus 10 be mounted on the outlet conduit of advanced oxidation device 20, monitoring wastewater biological toxicity simultaneously be transferred to from
Dynamic control cabinet 18；By teletransmission thermometer 4, teletransmission vacuum meter 6, the toxicity of wastewater biological containing dimethoxym ethane on-line monitoring early-warning apparatus 9, contain 2-
Methyl cellosolve wastewater biological toxicity on-line monitoring early-warning apparatus 10, chromacoder 19 are electrically connected with automatic control cabinet 18；
Automatic control cabinet 18 is monitored early-warning apparatus 16 on-line to teletransmission thermometer 4, teletransmission vacuum meter 6, the toxicity of wastewater biological containing dimethoxym ethane, is contained
The parameter that 2-methyl cellosolve wastewater biological toxicity on-line monitoring early-warning apparatus 17 transmits is acquired and through chromacoder 19
Remote monitoring terminal 21 is transmitted through the network to after conversion for remote monitoring diagnostic management.
The foregoing is merely preferable possible embodiments of the invention, not to limit to the scope of the patents of the invention, thus it is all
It is within the scope of the present invention with method and step made by this specification and accompanying drawing content and equivalence changes.
Claims (10)
1. a kind of glycol production waste water pretreatment system, it is characterised in that: including the list of Wastewater Pretreatment containing 2-methyl cellosolve
Member；The unit of Wastewater Pretreatment containing 2-methyl cellosolve includes wastewater equalization pond containing 2-methyl cellosolve (12), the second of methoxyl group containing 2-
Alcohol waste water circulating pump (14), extractant circulating pump (16), hydro carbons extractant storage tank (17) and at least one level extraction equipment (15)；Contain
The water outlet of 2-methyl cellosolve wastewater equalization pond (12) by pipeline and the circulating pump of waste water containing 2-methyl cellosolve (14) into
The mouth of a river is connected；When extraction equipment (15) are single-stage, the water outlet of the circulating pump of waste water containing 2-methyl cellosolve (14) passes through pipeline
It is connected with the water inlet of extraction equipment (15), the extractant import of extraction equipment (15) passes through pipeline and extractant circulating pump (16)
Liquid outlet be connected；When extraction equipment (15) are multistage, the water outlet of the circulating pump of waste water containing 2-methyl cellosolve (14) passes through
Pipeline is connected with the water inlet of first order extraction equipment (15), the outlet of the raffinate phase of upper level extraction equipment (15) by pipeline with
The raffinate phase import of next stage extraction equipment (15) is connected, and the extraction phase import of upper level extraction equipment (15) is by pipeline under
The extraction phase outlet of level-one extraction equipment (15) is connected, and the extractant import of afterbody extraction equipment (15) passes through pipeline and extraction
The outlet of agent circulating pump (16) is taken to be connected；The outlet of hydro carbons extractant storage tank (17) passes through pipeline and extractant circulating pump (16)
Import is connected.
2. a kind of glycol production waste water pretreatment system according to claim 1, it is characterised in that: further include extraction phase
Separator (13) and raffinate phase processing unit (20)；Extracting phase-separating device (13) is vacuum distillation apparatus, distillation device
Or infiltration evaporation device；Raffinate phase processing unit (20) be one of membrane separation device and advanced oxidation device or its tandem compound,
Or the tandem compound for membrane separation device and biochemical treatment apparatus, or be membrane separation device and advanced oxidation device and biochemical treatment
The tandem compound of device；When extraction equipment (15) are single-stage, the extraction phase outlet of extraction equipment (15) passes through pipeline and extraction
Phase-separating device (13) is connected, and the raffinate phase outlet of extraction equipment (15) passes through the water inlet of pipeline and raffinate phase processing unit (20)
Mouth is connected；When extraction equipment (15) are multistage, the outlet of first order extraction equipment (15) extraction phase passes through pipeline and extraction phase point
It is connected from device (13), the raffinate phase outlet of afterbody extraction equipment (15) passes through pipeline and raffinate phase processing unit (20)
Water inlet is connected, and the extractant that extraction phase-separating device (13) is isolated returns to hydro carbons extractant storage tank (17) and recycles.
3. a kind of glycol production waste water pretreatment system according to claim 1, it is characterised in that: further include contracting containing first
Aldehyde Wastewater Pretreatment unit；The unit of Wastewater Pretreatment containing dimethoxym ethane includes that wastewater equalization pond containing dimethoxym ethane (1) and at least one level subtract
Press Distallation systm；Every level-one decompression distillation system includes the circulating pump of waste water containing dimethoxym ethane (2), heat exchanger (3), vacuum distillation tower
(5), condenser (7) and vacuum pump (8)；In every level-one decompression distillation system, the water outlet of the circulating pump of waste water containing dimethoxym ethane (2) is logical
Piping is connected with the water inlet of heat exchanger (3), and the water outlet of heat exchanger (3) passes through the water inlet of pipeline and vacuum distillation tower (5)
Mouth is connected, and vacuum distillation tower (5) venthole is connected by pipeline with the air intake of condenser (7), and the exhaust outlet of condenser (7) is logical
Piping is connected with the air inlet of vacuum pump (8)；When decompression distillation system is single-stage, wastewater equalization pond containing dimethoxym ethane (1)
Water outlet is connected by pipeline with the water inlet of the waste water containing dimethoxym ethane of decompression distillation system circulating pump (2), vacuum distillation tower (5)
Water outlet is further processed by pipeline discharge；When decompression distillation system is multistage, the water outlet of wastewater equalization pond containing dimethoxym ethane (1)
Mouth is connected by pipeline with the water inlet of the waste water containing dimethoxym ethane of first order decompression distillation system circulating pump (2), upper level decompression
Vacuum distillation tower (5) water outlet of Distallation systm passes through the circulating pump of waste water containing dimethoxym ethane of pipeline and next stage decompression distillation system
(2) water inlet is connected, and further place is discharged by pipeline in vacuum distillation tower (5) water outlet of afterbody decompression distillation system
Reason.
4. a kind of glycol production waste water pretreatment system according to claim 2, it is characterised in that: further include fuel ratio
Example mixer (11)；The inlet of fuel ratio mixer (11) is connected with the solute liquid outlet of extraction phase-separating device (13)；
The mixing of condensate liquid containing dimethoxym ethane for solute and condenser (7) recycling that extraction phase-separating device (13) is isolated respectively enters combustion
Expect that proportioner (11) mix resource utilization with fuel in proportion.
5. a kind of glycol production waste water pretreatment system according to claim 2, it is characterised in that: further include automatic control and
Internet of Things remote monitoring diagnostic administrative unit；Automatic control and Internet of Things remote monitoring diagnostic administrative unit include automatic control cabinet
(18), teletransmission thermometer (4), teletransmission vacuum meter (6), the toxicity of wastewater biological containing dimethoxym ethane monitor early-warning apparatus (9), first containing 2- on-line
Ethoxy-ethanol wastewater biological toxicity monitors early-warning apparatus (10), chromacoder (19) and remote monitoring terminal (21) on-line；Contain
Dimethoxym ethane waste water circulating pump (2), vacuum pump (8), the circulating pump of waste water containing 2-methyl cellosolve (14) and extractant circulating pump (16)
It is electrically connected respectively with automatic control cabinet (26)；Teletransmission thermometer (4) is mounted on the outlet conduit of heat exchanger (3)；Teletransmission vacuum
Table (6) is mounted on vacuum distillation tower (5)；The toxicity of wastewater biological containing dimethoxym ethane on-line monitoring early-warning apparatus (9) is mounted on decompression and steams
On the outlet conduit for evaporating tower (5)；The toxicity of wastewater biological containing 2-methyl cellosolve on-line monitoring early-warning apparatus (10) is mounted on advanced oxygen
Makeup is set on the outlet conduit of (20)；Teletransmission thermometer (4), teletransmission vacuum meter (6), the toxicity of wastewater biological containing dimethoxym ethane are supervised online
Survey early-warning apparatus (9), the toxicity of wastewater biological containing 2-methyl cellosolve monitor on-line early-warning apparatus (10), chromacoder (19) with
Automatic control cabinet (18) electrical connection；Automatic control cabinet (18) is to teletransmission thermometer (4), teletransmission vacuum meter (6), waste water containing dimethoxym ethane
Bio-toxicity monitors early-warning apparatus (9) on-line, the toxicity of wastewater biological containing 2-methyl cellosolve on-line monitoring early-warning apparatus (10) transmission comes
Parameter be acquired and through chromacoder (19) conversion after be transmitted through the network to remote monitoring terminal (21)；Long-range prison
Control terminal (21) is remote management center computer or mobile monitoring terminal.
6. a kind of glycol production waste water preprocess method, it is characterised in that: including the Wastewater Pretreatment side containing 2-methyl cellosolve
Method, specific steps are as follows: set single-stage or multistage for extraction equipment (15)；When extraction equipment (15) are single-stage, methoxy containing 2-
The water outlet of base alcohol wastewater conditioning tank (12) is lifted into extraction through the circulating pump of waste water containing 2-methyl cellosolve (14) by pipeline
Device (15), the extractant in hydro carbons extractant storage tank (17) are lifted into extraction equipment (15) by extractant circulating pump (16)
Carry out extraction and separation；When extraction equipment (15) are multistage, waste water containing 2-methyl cellosolve enters first by circulating pump (14)
Grade extraction equipment (15) carries out extraction and separation, and the extractant in hydro carbons extractant storage tank (17) is mentioned by extractant circulating pump (16)
It rises and enters afterbody extraction equipment (15) progress extraction and separation, the raffinate phase of upper level extraction equipment (15) passes through pipeline and enters
Next stage extraction equipment (15) carries out extraction and separation, and the extraction phase of next stage extraction equipment (15) enters upper level extraction by pipeline
Device (15) are taken to carry out extraction and separation.
7. a kind of glycol production waste water preprocess method according to claim 6, it is characterised in that: further include first containing 2-
The separation of ethoxy-ethanol waste water extraction phase and raffinate phase processing method, specific steps are as follows: when extraction equipment (15) are single-stage, extraction
The extraction phase of device (15) enters extraction phase-separating device (13) extraction agent and solute by pipeline, extraction equipment (15)
Raffinate phase enters raffinate phase processing unit (20) by pipeline and is further processed；When extraction equipment (15) are multistage, the
Level-one extraction equipment (15) extraction phase enters extraction phase-separating device (13) extraction agent and solute, afterbody by pipeline
The raffinate phase of extraction equipment (15) enters raffinate phase processing unit (20) by pipeline and is further processed, and extracts phase-separating device
(13) extractant isolated returns to hydro carbons extractant storage tank (17) and recycles.
8. a kind of glycol production waste water preprocess method according to claim 6, it is characterised in that: further include contracting containing first
Aldehyde pretreatment method for wastewater, specific steps are as follows: set single-stage or multistage for decompression distillation system；In decompression distillation systems at different levels
In, the water outlet of heat exchanger (3) enters vacuum distillation tower (5) vaporization separation by pipeline, the organic steam in vacuum distillation tower (5)
Enter condenser (7) condensation by pipeline to collect, incoagulable gas is discharged by vacuum pump (8) to keep system in condenser (7)
Vacuum degree；When decompression distillation system is single-stage, the water outlet of wastewater equalization pond containing dimethoxym ethane (1) contains first through decompression distillation system
Acetal waste water circulating pump (2) is lifted into heat exchanger (3) heat temperature raising, the water outlet of vacuum distillation tower (5) by pipeline be discharged into
The processing of one step；When decompression distillation system is multistage, the water outlet of wastewater equalization pond containing dimethoxym ethane (1) is evaporated under reduced pressure through the first order is
The circulating pump of waste water containing dimethoxym ethane (2) of system is lifted into heat exchanger (3) heat temperature raising；The decompression of upper level decompression distillation system is steamed
Evaporate tower (5) water outlet by pipeline be lifted into through the circulating pump of waste water containing dimethoxym ethane (2) of next stage decompression distillation system it is next
Vacuum distillation tower (5) water outlet of heat exchanger (3) heat temperature raising of grade decompression distillation system, afterbody decompression distillation system passes through
Pipeline discharge is further processed.
9. a kind of glycol production waste water preprocess method according to claim 7, it is characterised in that: further include extraction phase
Separation and condensing recovery organic resources method, concrete measure are as follows: extraction phase-separating device (13) solute isolated and cold
The condensate liquid containing dimethoxym ethane of condenser (7) recycling mixes or respectively enters fuel ratio mixer (11) mixes money with fuel in proportion
Sourceization utilizes.
10. a kind of glycol production waste water preprocess method according to claim 8, it is characterised in that: further include automatic control
And Internet of Things remote monitoring diagnostic management method, concrete measure are as follows: dimethoxym ethane waste water circulating pump (2) will be contained, vacuum pump (8), contained
2-methyl cellosolve waste water circulating pump (14) and extractant circulating pump (16) are electrically connected with automatic control cabinet (26) respectively；Automatic control
Cabinet (26) processed coordinates each equipment work well according to setting program；Teletransmission thermometer (4) is mounted on to the outlet of heat exchanger (3)
On road, monitors waste water temperature and be transferred to automatic control cabinet (18)；Teletransmission vacuum meter (6) is mounted on vacuum distillation tower (5),
It monitors the vacuum degree of vacuum distillation tower (5) and is transferred to automatic control cabinet (18)；Dimethoxym ethane wastewater biological toxicity will be contained to supervise online
It surveys early-warning apparatus (9) to be mounted on the outlet conduit of vacuum distillation tower (5), monitor wastewater biological toxicity and is transferred to automatic control cabinet
(18)；2-methyl cellosolve wastewater biological toxicity on-line monitoring early-warning apparatus (10) will be contained and be mounted on going out for advanced oxidation device (20)
On waterpipe, monitors wastewater biological toxicity and be transferred to automatic control cabinet (18)；By teletransmission thermometer (4), teletransmission vacuum meter
(6), the toxicity of wastewater biological containing dimethoxym ethane on-line monitoring early-warning apparatus (9), the toxicity of wastewater biological containing 2-methyl cellosolve on-line monitoring
Early-warning apparatus (10), chromacoder (19) are electrically connected with automatic control cabinet (18)；Automatic control cabinet (18) is to teletransmission temperature
Count (4), teletransmission vacuum meter (6), the toxicity of wastewater biological containing dimethoxym ethane on-line monitoring early-warning apparatus (16), waste water containing 2-methyl cellosolve
The parameter of bio-toxicity on-line monitoring early-warning apparatus (17) transmission is acquired and passes through net after chromacoder (19) conversion
Network is transmitted to remote monitoring terminal (21) for remote monitoring diagnostic management.
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Cited By (1)
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|---|---|---|---|---|
| WO2023111567A1 (en) | 2021-12-16 | 2023-06-22 | Johnson Matthey Davy Technologies Limited | Process for recovering 2-methoxyethanol from a waste water stream |
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