CN106552452A - MTO chilled water (chw)s and washing high-efficiency water purifying treatment device - Google Patents
MTO chilled water (chw)s and washing high-efficiency water purifying treatment device Download PDFInfo
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- CN106552452A CN106552452A CN201510627400.XA CN201510627400A CN106552452A CN 106552452 A CN106552452 A CN 106552452A CN 201510627400 A CN201510627400 A CN 201510627400A CN 106552452 A CN106552452 A CN 106552452A
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- filter element
- underflow
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
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Abstract
The invention provides a kind of MTO chilled water (chw)s for being related to coal chemical technology include with high-efficiency water purifying treatment device, the device is washed：Filter element, underflow storage tank, blowback (punching) storage tank, cleaning pump, Chemical cleaning flow container, underflow feed pump, catalyst underflow process tank, underflow discharging pump, underflow press dry device, pneumatic filter, pipe-line mixer.Filter element can realize MTO chilled water (chw)s with washing water purification；Blowback (punching) storage tank and Chemical cleaning flow container can realize the cleaning and regeneration to filter element；Underflow press dry the catalyst granules that device can obtain relatively low moisture content.Device separation efficiency is high, and good stability, continuous operating time are long, improve separation of olefins unit heat exchanger effectiveness, reduces the burden of downstream wastewater process, extends the usage cycles of upstream device, greatly improve production efficiency.
Description
Technical field
The present invention is applied to Coal Chemical Industry methanol and prepares alkene (MTO) technical field, exists in being related to a kind of removal MTO chilled water (chw)s and washing water
Solid catalyst particle device, it is adaptable to the purified treatment of MTO chilled water (chw)s and washing water.Specifically, the invention provides a kind of MTO
Chilled water (chw) and washing high-efficiency water purifying treatment device.
Background technology
Methanol prepares alkene (MTO) technology and refers to by feed coal vaporizing system for methanol, and Jing catalytic reactions prepare the mistake of low-carbon alkene to methanol again
Journey.Existing MTO devices are that three-level or tetra-cyclone are equipped with after reactor, and cyclone separator pyroreaction gas out enters chilling
Workshop section is lowered the temperature and dust removal process with washing.Taking the part chilled water (chw) after heat and washing water carries out UTILIZATION OF VESIDUAL HEAT IN, or portion into separation of olefins unit
Chilled water (chw) and the direct decontamination water treatment system of washing water is divided to be processed.But as cyclone separator structure is limited, which can only be by particle diameter in reaction gas
Solid catalyst particle more than 10 microns is separated, and the solid catalyst particle of particle diameter≤10 micron and by-product be due to realizing separating,
And follow reaction gas to fully enter in chilled water (chw) and washing water, this solid catalyst is zeolite molecules sieve structure, and meeting water fails, no recovery value,
If but chilled water (chw) and washing water carry out UTILIZATION OF VESIDUAL HEAT IN into separation of olefins unit, occurring heat exchanger blocking, heat exchange effect in may result in running
The problems such as rate reduction, produce load reduction, the increase of device wear-out failure, high maintenance cost, large steam consumption, if chilled water (chw) and washing water directly go
Sewage disposal system is processed, then can greatly increase the burden of sewage disposal.So the chilled water (chw) containing solid catalyst particle is necessary with washing water
Purified treatment is carried out, this can just solve the problems, such as that existing system blocking is serious, and then reduce system operation energy consumption, reduce System steam and water
The consumption of resource, ensuring equipment stable operation reduce maintenance cost, while lifting the purpose of produce load.
Existing isolation of purified mode has cyclone hydraulic separators, bag filter, wire gauzee filter and purpose ceramic-film filter etc..Due to its own knot
Structure and the upper existing defects of design, the isolation of purified effect of aforesaid way are generally very poor.
The primarily discrete low precision of cyclone hydraulic separators, it is impossible to remove the solid particle of particle diameter≤5 micron, and this partial catalyst amounts of particles is accounted for
The 70%～80% of total amount.Bag filter is equally that separation accuracy is poor, and filter bag can also be corroded by components such as the alkene in fluid, causes to filter
The failure of device.Wire gauzee filter separation accuracy is poor, and efficiency is low, filter element cracky, and filter element cannot carry out on-line cleaning.Ceramic membrane mistake
Filter is that, in the form of cross flow filter, energy consumption is very high, is typically only used for the smaller system for the treatment of capacity, and earthenware is easily damaged, and sealing is easy
Reveal, it is impossible to cleaning and regeneration.Existing segregation apparatuss are due to filter medium itself existing problems and the defect of system design, and lack effectively
Cleaning and regeneration method, causes normal filtration time very short, during operation pressure reduction raise it is fast, need frequently to split out filter element carry out cleaning, keep in repair and
Change, it is impossible to realize continuous and steady operation, it is impossible to meet MTO chilled water (chw)s and washing hydraulic art requirement, so both increased equipment investment and
Day-to-day operation cost, while also add labor intensity, reduces normal produce load, causes very big impact to the income of enterprise.
The content of the invention
The invention provides a kind of new MTO chilled water (chw)s and washing high-efficiency water purifying treatment device, solve the problems, such as in prior art.
The invention provides a kind of MTO chilled water (chw)s include with high-efficiency water purifying treatment device, the device is washed：Chilled water (chw) and washing water are carried out only
Change is processed, and removes the filter element of the solid catalyst particle being wherein mingled with；Device is pressed dry for pressing dry the underflow used by catalyst cake；For storing up
Deposit the Chemical cleaning flow container of chemical cleaning solution；It is connected with the filter element bottom, stores the underflow storage tank of catalyst underflow；Filter single with described
Unit's outlet is connected, and blowback (punching) storage tank of blowback and recoil is carried out to filter element；Import is connected with described underflow storage tank, is exported and institute
The catalyst underflow process tank stated is connected, and catalyst underflow is delivered to the underflow feed pump of catalyst underflow process tank from underflow storage tank；Import with
Described catalyst underflow process tank is connected, and outlet press dry device with described underflow and is connected, and catalyst underflow is conveyed from catalyst underflow process tank
The underflow discharging pump of device is pressed dry to underflow；Import is connected with described Chemical cleaning flow container, while import is also connected with the filtration unit outlet,
What outlet was connected with described filter element, for the chemical cleaning solution in Chemical cleaning flow container is delivered to filter element, and form circuit cycle
Cleaning pump；The filter being connected with the blowback (punching) storage tank import；It is connected with the Chemical cleaning flow container import, for the pipe of liquid mixing
Road blender.
In one preferred embodiment, wherein filter element includes 2～6 filters in parallel；
Another preferred embodiment in, wherein filter element inner filter element packet place；
Another preferred embodiment in, wherein filter element inner filter element is that wedge shape net filtration element, sintering metal felt cross filtering element
Part, sintering metal powder filter element or sintered metal mesh filter element.
Another preferred embodiment in, wherein Chemical cleaning flow container jacketed or coil pipe.
Another preferred embodiment in, wherein underflow press dry unit includes 1～6 underflow pressure dryer in parallel；
Another preferred embodiment in, wherein underflow is pressed dry；
Another preferred embodiment in, it is wedge shape net filtration element, sintered gold that wherein underflow press dry inside unit upper and lower filter element
Category felt filter element, sintering metal powder filter element or sintered metal mesh filter element.
Another preferred embodiment in, wherein filter element (1) outlet with cleaning pump (4) import between connecting pipe on peace
Dress flow and pressure test device.
Description of the drawings
Fig. 1 is the workflow schematic diagram of MTO chilled water (chw)s of the present invention and washing high-efficiency water purifying treatment device；
Fig. 2 be embodiment of the present invention a filter element in filter structural representation；
Fig. 3 is the structural representation that a underflow of embodiment of the present invention press dry device.
Specific embodiment
Below by specific embodiment and combine accompanying drawing the present invention is described in further detail.
Present invention MTO chilled water (chw)s as shown in Figure 1 and the workflow schematic diagram for washing high-efficiency water purifying treatment device, including：
Purified treatment is carried out to chilled water (chw) and washing water, the filter element (1) of the solid catalyst particle being wherein mingled with is removed；Urge for pressing dry
Underflow used by agent filter cake press dry device (7)；For storing the Chemical cleaning flow container (5) of chemical cleaning solution；With the filter element (1) bottom
What portion was connected, store the underflow storage tank (2) of catalyst underflow；It is connected with the filter element (1) outlet, filter element (1) is carried out instead
Blowback (punching) storage tank (3) for blowing and recoiling；Import is connected with described underflow storage tank (2), is exported and described catalyst underflow process tank
(11) it is connected, catalyst underflow is delivered to into the underflow feed pump (10) of catalyst underflow process tank (11) from underflow storage tank (2)；Import
It is connected with described catalyst underflow process tank (11), outlet press dry device (7) with described underflow and is connected, by catalyst underflow from catalyst
Underflow process tank (11) is delivered to the underflow discharging pump (6) that underflow press dry device (7)；Import is connected with described Chemical cleaning flow container (5),
Simultaneously import is also connected with the filter element (1) outlet, exports what is be connected with described filter element (1), for by Chemical cleaning flow container (5)
In chemical cleaning solution be delivered to filter element (1), and form the cleaning pump (4) of circuit cycle；With the blowback (punching) storage tank (3) import
Connected filter (8)；It is connected with the Chemical cleaning flow container (5) import, the pipe-line mixer (9) for liquid mixing.
In some specific embodiments, described filter element 1 includes 2～6 filters in parallel, as shown in figure 1, in the reality
6 filters in parallel are employed in applying mode；
In some specific embodiments, described 1 inner filter element of filter element packet is placed, as shown in Fig. 2 separate unit is filtered
In device, filter element divide into 4 groups；
In some specific embodiments, described filter element (1) inner filter element is wedge shape net filtration element, sintering metal felt
Filter element, sintering metal powder filter element or sintered metal mesh filter element.
In some specific embodiments, described Chemical cleaning flow container (5) jacketed or coil pipe, as shown in figure 1, chemical cleaning solution
Chuck is carried inside tank.
In some specific embodiments, described underflow press dry unit (7) including 1～6 underflow pressure dryer in parallel, such as Fig. 1 institutes
Show, employ 2 underflow pressure dryers in parallel in this embodiment.
In some specific embodiments, described underflow to be pressed dry and be divided into top filter element and bottom filter element inside unit (7),；
In some specific embodiments, described underflow press dry unit (7) inner filter element for wedge shape net filtration element, sintered gold
Category felt filter element, sintering metal powder filter element or sintered metal mesh filter element.
In some specific embodiments, wherein pacifying on the connecting pipe between filter element (1) outlet and cleaning pump (4) import
Dress flow and pressure test device.
Fig. 2 is the schematic flow sheet of filter in filter element according to one embodiment of the present invention.
As shown in Fig. 2 the chilled water (chw) containing solid catalyst particle and washing water enter its internal filter ante-chamber from filter (1-2) import A,
After the internal filter element (1-1) of filter (1-2) carries out surface screening, solid catalyst particle is trapped within filter element (1-1) outward
Surface, the chilled water (chw) and washing water after purification pass through filter element (1-1) into the filter back cavity of filter (1-2), and go out from filter (1-2)
Mouth B flows out；
The purge gas that purge gas storage tank (3) comes enters filter (1-2) from filter (1-2) back blow port C and filters back cavity, to mistake
Filtering element (1-1) carries out blowback, makes the solid catalyst particle for being attached to filter element (1-1) outer surface all come off, and the solid after coming off is urged
Catalyst particles are deposited to filter (1-2) hypocone under gravity, form underflow shape, periodically arrange from filter (1-2) bottom thick liquid discharge mouth D
Go out.The chemical cleaning solution that Chemical cleaning flow container (5) comes enters filter (1-2) from filter (1-2) cleanout fluid import E and filters ante-chamber, passes through
After filter element (1-1), flow out from the rinse liquid outlet F of filter back cavity.
Fig. 3 is the schematic flow sheet that device is pressed dry according to the underflow of one embodiment of the present invention.
Catalyst underflow press dry device (7) import H into its internal filter ante-chamber from underflow, after liquid phase part passes through filter element (7-1),
Flow out from outlet K, solid catalyst particle is trapped within filter element (7-1) outer surface；
Purge gas is passed through to back blow port L carries out blowback, and the solid catalyst particle that will be attached to filter element (7-1) outer surface all blows
Fall；Gas is passed through to malleation mouth M, liquid phase part is all discharged from leakage fluid dram N, opened underflow and press dry device (7) lid greatly, you can collect
The catalyst granules of certain moisture content.
The present invention carries out carrying out purified treatment to chilled water (chw) and washing water by way of surface screening is filtered microporous filter element, eliminates which
Middle entrained solid catalyst granules, and the solid catalyst particle of low moisture content is obtained by way of air-flow is pressed dry, while rationally effective gas
Blowback and chemical cleaning method, realize the on-line cleaning to microporous filter element and regenerate, it is ensured that the operation steady in a long-term of whole device.
, for other segregation apparatuss, separation efficiency is higher, and element service life is longer for the present invention, and system stability more preferably, can be with
Realize that full automation is operated, it is simple to operate, labor intensity is reduced, the water quality of MTO chilled water (chw)s and washing water has been purified, downstream will be extended
The usage cycles of equipment, it is to avoid the blocking of heat exchanger tube, improve separation of olefins unit heat exchanger effectiveness, reduce equipment attrition, reduce sewage
The load of processing system, is to improve produce load to carry out and energetically ensure.
Package unit efficiently, energy-conservation, economy, environmental protection, easy care, reliability are high.
The foregoing is only the explanation for accompanying drawing being combined to the preferred embodiment of the present invention, but these explanations can not be considered as limiting this
The scope of invention, protection scope of the present invention are limited by appended claims, any modification for being made, are replaced on the basis of the claims in the present invention
Change, improve, be all contained within protection scope of the present invention.
Claims (9)
1. a kind of MTO chilled water (chw)s include with high-efficiency water purifying treatment device, the device is washed：
Purified treatment is carried out to chilled water (chw) and washing water, the filter element (1) of the solid catalyst particle being wherein mingled with is removed；Device (7) is pressed dry for pressing dry the underflow used by catalyst cake；For storing the Chemical cleaning flow container (5) of chemical cleaning solution；It is connected with the filter element (1) bottom, stores the underflow storage tank (2) of catalyst underflow；It is connected with the filter element (1) outlet, blowback (punching) storage tank (3) of blowback and recoil is carried out to filter element (1)；Import is connected with described underflow storage tank (2), outlet is connected with described catalyst underflow process tank (11), and catalyst underflow is delivered to the underflow feed pump (10) of catalyst underflow process tank (11) from underflow storage tank (2)；Import is connected with described catalyst underflow process tank (11), outlet press dry device (7) with described underflow and is connected, and catalyst underflow is delivered to the underflow discharging pump (6) that underflow press dry device (7) from catalyst underflow process tank (11)；Import is connected with described Chemical cleaning flow container (5), import simultaneously is also connected with the filter element (1) outlet, what outlet was connected with described filter element (1), for the chemical cleaning solution in Chemical cleaning flow container (5) is delivered to filter element (1), and form the cleaning pump (4) of circuit cycle；The filter (8) being connected with the blowback (punching) storage tank (3) import；It is connected with the Chemical cleaning flow container (5) import, the pipe-line mixer (9) for liquid mixing.
2. MTO chilled water (chw)s according to claim 1 with washing high-efficiency water purifying treatment device, it is characterised in that described filter element (1) is including 2～8 filters in parallel.
3. MTO chilled water (chw)s according to claim 1 and washing high-efficiency water purifying treatment device, it is characterised in that described filter element (1) inner filter element packet is placed.
4. MTO chilled water (chw)s according to claim 1 with washing high-efficiency water purifying treatment device, characterized in that, described filter element (1) inner filter element is wedge shape silk screen filter element, sintering metal felt filter element, sintering metal powder filter element or sintered metal mesh filter element.
5. MTO chilled water (chw)s according to claim 1 with washing high-efficiency water purifying treatment device, it is characterised in that described Chemical cleaning flow container (5) jacketed or coil pipe.
6. MTO chilled water (chw)s according to claim 1 with washing high-efficiency water purifying treatment device, it is characterised in that described underflow press dry unit (7) including 1～6 underflow pressure dryer in parallel.
7. MTO chilled water (chw)s according to claim 1 and washing high-efficiency water purifying treatment device, it is characterised in that described underflow to be pressed dry and be divided into top filter element and bottom filter element inside unit (7).
8. MTO chilled water (chw)s according to claim 1 with washing high-efficiency water purifying treatment device, characterized in that, it is wedge shape silk screen filter element, sintering metal felt filter element, sintering metal powder filter element or sintered metal mesh filter element that described underflow press dry the internal upper and lower filter element of unit (7).
9. MTO chilled water (chw)s according to claim 1 and washing high-efficiency water purifying treatment device, it is characterised in that installation flow and pressure test device on the connecting pipe between filter element (1) outlet and cleaning pump (4) import.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510627400.XA CN106552452A (en) | 2015-09-28 | 2015-09-28 | MTO chilled water (chw)s and washing high-efficiency water purifying treatment device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510627400.XA CN106552452A (en) | 2015-09-28 | 2015-09-28 | MTO chilled water (chw)s and washing high-efficiency water purifying treatment device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108117179A (en) * | 2017-12-21 | 2018-06-05 | 新兴能源科技有限公司 | It is a kind of to be applied to the cleaning system of MTO device water systems and purification technique |
| CN108465282A (en) * | 2018-05-31 | 2018-08-31 | 浙江东瓯过滤机制造有限公司 | A kind of short grained filtration wash unit of ternary precursor and its filtration washing technique |
| CN110386698A (en) * | 2019-08-23 | 2019-10-29 | 上海蓝科石化环保科技股份有限公司 | The catalyst separation device and separation method of acrylonitrile quenching water |
| CN114425274A (en) * | 2020-10-15 | 2022-05-03 | 中国石油化工股份有限公司 | Slurry separator, slurry treatment apparatus and slurry treatment method |
| CN114477321A (en) * | 2020-10-27 | 2022-05-13 | 中国石油化工股份有限公司 | Device for purifying washing water of MTO device and using method |
| CN115487568A (en) * | 2021-06-18 | 2022-12-20 | 中国石油化工股份有限公司 | MTO quench tower water slurry purification device and purification method |
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| CN205031975U (en) * | 2015-09-28 | 2016-02-17 | 石家庄波特无机膜分离设备有限公司 | MTO chilled water (chw) and washing purifying water process device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108117179A (en) * | 2017-12-21 | 2018-06-05 | 新兴能源科技有限公司 | It is a kind of to be applied to the cleaning system of MTO device water systems and purification technique |
| CN108465282A (en) * | 2018-05-31 | 2018-08-31 | 浙江东瓯过滤机制造有限公司 | A kind of short grained filtration wash unit of ternary precursor and its filtration washing technique |
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| CN110386698A (en) * | 2019-08-23 | 2019-10-29 | 上海蓝科石化环保科技股份有限公司 | The catalyst separation device and separation method of acrylonitrile quenching water |
| CN110386698B (en) * | 2019-08-23 | 2024-04-05 | 上海蓝科石化环保科技股份有限公司 | Catalyst separation device and method for acrylonitrile quench water |
| CN114425274A (en) * | 2020-10-15 | 2022-05-03 | 中国石油化工股份有限公司 | Slurry separator, slurry treatment apparatus and slurry treatment method |
| CN114477321A (en) * | 2020-10-27 | 2022-05-13 | 中国石油化工股份有限公司 | Device for purifying washing water of MTO device and using method |
| CN115487568A (en) * | 2021-06-18 | 2022-12-20 | 中国石油化工股份有限公司 | MTO quench tower water slurry purification device and purification method |
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