CN104909496A - Gasification grey water on-line recycling treatment technique and special device thereof - Google Patents
Gasification grey water on-line recycling treatment technique and special device thereof Download PDFInfo
- Publication number
- CN104909496A CN104909496A CN201510293908.0A CN201510293908A CN104909496A CN 104909496 A CN104909496 A CN 104909496A CN 201510293908 A CN201510293908 A CN 201510293908A CN 104909496 A CN104909496 A CN 104909496A
- Authority
- CN
- China
- Prior art keywords
- water
- output terminal
- online resource
- gasification ash
- gasification
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention relates to a gasification grey water on-line recycling treatment technique and a special device thereof. A treatment method composed of high-density precipitation, ultrafiltration and special separation membrane treatment is utilized to treat gasification grey water, and the finally obtained produced water is used as water for gasification furnaces, thereby saving the water resources and protecting the environment. The system has the advantages of high long-term operation stability and reliability, low investment cost and low operating cost.
Description
Technical field
The invention belongs to waste water reclaiming processing technology field; specifically just relate to a kind of gasification ash water online resource treatment process and specific equipment thereof, process gasification ash water, the product water obtained can be used as vapourizing furnace water; protect environment, save water resources.
Background technology
Gasification refers to that coal is in vapourizing furnace, under certain temperature and pressure condition, makes organic matter and vaporized chemical (as steam/air or oxygen etc.) in coal that the chemical reaction of a sequence occur, is converted into solid coal containing CO, H
2, CH
4deng inflammable gas and CO
2, N
2deng the process of incombustible gas.In this process, a large amount of gasification ash waters can be discharged from vapourizing furnace and wash tower bottoms, main containing the more impurity such as calcium magnesium salts, organism, hydrofluoric acid in this waste water, if these impurity do not remove the corrosion and scaling that can cause follow-up equipment.Therefore, effective process of buck and recycle are the guarantees that coal gasifying process normally runs.
At present, gasification ash water adopts flash method and settling process process mostly, wherein, in flash method treating processes, scaling blocking is serious, the easy wear and leakage of pipeline, and pipeline valve is changed frequent, recondition expense is higher, and flashed vapour sends into torch emptying, has pollution to air; In settling process treating processes, because the moiety (comprising conductance, turbidity, hardness etc.) of dissimilar buck is different, kind and the dosage of required flocculation agent are different, cause in actual applications, operational management is comparatively complicated, and the usage quantity of flocculation agent is generally large, working cost is higher.Therefore, there is the shortcomings such as treatment facility is many, system complex, investment is large, flocculation agent usage quantity is large, cost is higher in prior art, adds the Financial cost that gasification system is run mostly.
Summary of the invention
Object of the present invention is exactly high for existing gasification ash water treatment technology cost, the technological deficiency of fluctuation of service, a kind of gasification ash water online resource treatment process and specific equipment (English: Gasification Grey-water On-line Recycling Technology and SpecialEquipment thereof are provided, abbreviation: GGOR), first reacted by chemical precipitation, remove SS in waste water, calcium magnesium, fluorion, the impurity such as total silicon, then water outlet is through ultrafiltration system and special separation membrane system process, remove SS residual in water, organism, the materials such as salt, the product water finally obtained can be used as vapourizing furnace water, achieve protection of the environment, saving water resource, system cloud gray model expense is low, the object of long-term safety steady running.
Technical scheme
In order to realize above-mentioned technical purpose, the gasification ash water online resource treatment process of the present invention's design, it comprises following step:
(1) gasification ash water is carried out chemical precipitation, be precipitated water outlet;
(2) uf processing is carried out in the precipitation water outlet that step (1) obtains, retain separation and obtain ultrafiltration product water and dense water;
(3) the product water that step (2) obtains is carried out concentrating and separating, obtain being separated and produce water and dense water.
Further, described step (1), by adding alkali, sodium carbonate and flocculation agent, carries out chemical reaction, and SS, calcium magnesium, fluorion, total silicon in waste water are formed precipitation.
Further, described step (3) working conditions pH is 5 ~ 8, pressure is 10 ~ 30bar.
For the specific equipment of above-mentioned gasification ash water online resource treatment process, it is characterized in that: it comprises high-density settler, ultra filtration unit, special separation membrane element;
Described grey water pot is connected with high-density settler, connecting pipeline is equipped with intake pump, and the clear liquid output terminal of high-density settler connects ultra filtration unit, and mud output terminal connects sludge thickener, the clear liquid output terminal of ultra filtration unit connects special separation membrane element, and dense water output terminal connects back grey water pot; The clear liquid output terminal of special separation membrane element connects product pond, and dense water output terminal connects dense pond.
Further, reaction stirrer and medicine machine are equipped with in described high-density settler inside.
Further, be provided with microfiltration equipment and membrane module in described ultra filtration unit, microfiltration equipment is connected with membrane module.
Further, described special separation membrane element comprises accurate filter, high-pressure pump and membrane module, and accurate filter is connected with membrane module, and connecting pipeline is equipped with high-pressure pump.
Beneficial effect
The gasification ash water online resource treatment process of the present invention's design and specific equipment thereof; the treatment process of employing high-density precipitation, ultrafiltration, special separatory membrane process processes gasification ash water; the product water finally obtained is as vapourizing furnace water; save water resources; protect environment; and system cloud gray model long time stability, cost of investment is low, and working cost is lower.
Accompanying drawing explanation
Accompanying drawing 1 is process flow sheet of the present invention.
Accompanying drawing 2 is annexation schematic diagram of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described.
Embodiment
The specific equipment of gasification ash water online resource treatment process as shown in Figure 2, is characterized in that: it comprises high-density settler 1, ultra filtration unit 2, special separation membrane element 3;
Described grey water pot 4 is connected with high-density settler 1, connecting pipeline is equipped with intake pump 5; The clear liquid output terminal of high-density settler 1 connects ultra filtration unit 2, and mud output terminal connects sludge thickener 7; The clear liquid output terminal of ultra filtration unit 2 connects special separation membrane element 3, and dense water output terminal connects back grey water pot 4; The clear liquid output terminal of special separation membrane element 3 connects product pond 12, and dense water output terminal connects dense pond 13.
Reaction stirrer 6 and medicine machine are equipped with in described high-density settler 1 inside.
Be provided with microfiltration equipment 8 and membrane module 9 in described ultra filtration unit 2, microfiltration equipment 8 is connected with membrane module 9.
Described special separation membrane element 3 comprises accurate filter 10, high-pressure pump 11 and membrane module 9, and accurate filter 10 is connected with membrane module 9, connecting pipeline is equipped with high-pressure pump 11.
As shown in Figure 1 to utilize above-mentioned special purpose device to carry out the process of gasification ash water online resource metallization processes (GGOR) as follows:
The first step: gasification ash water is pumped into potassium permanganate composites, by adding the chemical agents such as alkali, sodium carbonate, flocculation agent, carry out chemical reaction, SS, calcium magnesium, fluorion, total silicon in waste water are formed precipitation, precipitation is delivered to the supporting sludge dewatering system process of gasification installation with sludge form, and supernatant liquor enters ultrafiltration system.
Second step: the precipitation water outlet that the first step obtains is introduced into microfiltration systems, waste water is tentatively filtered, remove the most of SS in waste water, extend the ultrafiltration system cleaning interval, and adjust back by adding hydrochloric acid pH, carbonate major part in waste water is existed with bicarbonate ion, and adjusts pH in the scope of 5-8, then enter ultrafiltration system; Ultrafiltration system retains the mode of separation by film, remove remaining SS and colloid in waste water, delivery turbidity <3NTU, follow-up special separation membrane system long-term stability can be made to run, this unit Water Sproading rate can reach more than 90%, and the concentrate recirculation of generation is to former fill cycle process.
3rd step: the product water that second step obtains enters special separation membrane system, pH be 5-8, under pressure is the condition of 10-30bar, adopt special separatory membrane to retain the organism in waste water and salinity, make product water reach the requirement of vapourizing furnace water, the Water Sproading rate of this unit reaches more than 75%.Wherein, special separatory membrane has the feature of antipollution, resistance to cleaning, can reduce the working cost of system, and can long-term safety steady running.
The present invention adopt high-density precipitation, ultrafiltration, special separatory membrane treatment process gasification ash water is processed, the product water finally obtained, as vapourizing furnace water, has saved water resources; protect environment; and system cloud gray model long time stability, cost of investment is low, and working cost is low.
Claims (7)
1. a gasification ash water online resource treatment process, is characterized in that, it comprises following step:
(1) gasification ash water is carried out chemical precipitation, be precipitated water outlet;
(2) uf processing is carried out in the precipitation water outlet that step (1) obtains, retain separation and obtain ultrafiltration product water and dense water;
(3) the product water that step (2) obtains is carried out concentrating and separating, obtain being separated and produce water and dense water.
2. a kind of gasification ash water online resource treatment process as claimed in claim 1, it is characterized in that: described step (1) carries out chemical reaction by adding alkali, sodium carbonate and flocculation agent, SS, calcium magnesium, fluorion, total silicon in waste water are formed precipitation.
3. a kind of gasification ash water online resource treatment process as claimed in claim 1, is characterized in that: described step (3) working conditions pH is 5 ~ 8, pressure is 10 ~ 30bar.
4. for the specific equipment of the gasification ash water online resource treatment process described in above-mentioned any one claim, it is characterized in that: it comprises high-density settler (1), ultra filtration unit (2) and special separation membrane element (3);
Ash water pot (4) is connected with high-density settler (1), intake pump (5) connecting pipeline is equipped with, the clear liquid output terminal of high-density settler (1) connects ultra filtration unit (2), mud output terminal connects sludge thickener (7), the clear liquid output terminal of ultra filtration unit (2) connects special separation membrane element (3), dense water output terminal connects back grey water pot (4), the clear liquid output terminal of special separation membrane element (3) connects product pond (12), and dense water output terminal connects dense pond (13).
5. the specific equipment of gasification ash water online resource treatment process as claimed in claim 4, is characterized in that: reaction stirrer (6) and medicine machine are equipped with in described high-density settler (1) inside.
6. the specific equipment of gasification ash water online resource metallization processes process as claimed in claim 4, it is characterized in that: be provided with microfiltration equipment (8) and membrane module (9) in described ultra filtration unit (2), microfiltration equipment (8) is connected with membrane module (9).
7. the special purpose device of gasification ash water online resource metallization processes process as claimed in claim 4, it is characterized in that: described special separation membrane element (3) comprises accurate filter (10), high-pressure pump (11) and membrane module (9), accurate filter (10) is connected with membrane module (9), connecting pipeline is equipped with high-pressure pump (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510293908.0A CN104909496A (en) | 2015-06-01 | 2015-06-01 | Gasification grey water on-line recycling treatment technique and special device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510293908.0A CN104909496A (en) | 2015-06-01 | 2015-06-01 | Gasification grey water on-line recycling treatment technique and special device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104909496A true CN104909496A (en) | 2015-09-16 |
Family
ID=54079008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510293908.0A Pending CN104909496A (en) | 2015-06-01 | 2015-06-01 | Gasification grey water on-line recycling treatment technique and special device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104909496A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106007047A (en) * | 2016-05-19 | 2016-10-12 | 康洪强 | Device and method for treating black water discharged from coal gasification process |
| CN106630307A (en) * | 2016-09-30 | 2017-05-10 | 航天长征化学工程股份有限公司 | System and method for treating coal gasification grey water |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100864587B1 (en) * | 2007-05-25 | 2008-10-20 | 호서대학교 산학협력단 | Method and apparatus for disposing wastewater in digital textile printing |
| DE202008011994U1 (en) * | 2008-09-09 | 2009-01-02 | Ehrlich, Lutz | The water treatment unit |
| CN103304049A (en) * | 2012-03-06 | 2013-09-18 | 上海宝钢化工有限公司 | Coking wastewater recycling treatment system and method |
| CN103723799A (en) * | 2013-12-23 | 2014-04-16 | 北京京润新技术发展有限责任公司 | Electrodialyzer and near-zero-release industrial wastewater recycling technique |
| CN104445714A (en) * | 2014-11-04 | 2015-03-25 | 深圳能源资源综合开发有限公司 | High-powered recycling process of coal-chemical industry clean wastewater and special device for high-powered recycling process |
| CN204803134U (en) * | 2015-06-01 | 2015-11-25 | 上海晶宇环境工程有限公司 | Professional equipment of online resourceful treatment technology of gasification buck |
-
2015
- 2015-06-01 CN CN201510293908.0A patent/CN104909496A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100864587B1 (en) * | 2007-05-25 | 2008-10-20 | 호서대학교 산학협력단 | Method and apparatus for disposing wastewater in digital textile printing |
| DE202008011994U1 (en) * | 2008-09-09 | 2009-01-02 | Ehrlich, Lutz | The water treatment unit |
| CN103304049A (en) * | 2012-03-06 | 2013-09-18 | 上海宝钢化工有限公司 | Coking wastewater recycling treatment system and method |
| CN103723799A (en) * | 2013-12-23 | 2014-04-16 | 北京京润新技术发展有限责任公司 | Electrodialyzer and near-zero-release industrial wastewater recycling technique |
| CN104445714A (en) * | 2014-11-04 | 2015-03-25 | 深圳能源资源综合开发有限公司 | High-powered recycling process of coal-chemical industry clean wastewater and special device for high-powered recycling process |
| CN204803134U (en) * | 2015-06-01 | 2015-11-25 | 上海晶宇环境工程有限公司 | Professional equipment of online resourceful treatment technology of gasification buck |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106007047A (en) * | 2016-05-19 | 2016-10-12 | 康洪强 | Device and method for treating black water discharged from coal gasification process |
| CN106630307A (en) * | 2016-09-30 | 2017-05-10 | 航天长征化学工程股份有限公司 | System and method for treating coal gasification grey water |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105254104A (en) | Desulphurization wastewater zero discharge treatment process for power plant with low running cost | |
| CN104829079A (en) | A novel supercritical water oxidation sludge treatment system and a method | |
| CN107915354A (en) | A kind of desulfurization wastewater zero-emission and resource utilization device and method | |
| CN109851139B (en) | High-salt wastewater softening and concentrating device and method | |
| CN107364994A (en) | A kind of method for treating desulfurized wastewater and system | |
| CN104291486A (en) | High-power reuse technology for coal chemical industry strong brine and special equipment of high-power reuse technology | |
| CN102583809A (en) | Silica and oil removing system for oily sewage | |
| CN104909496A (en) | Gasification grey water on-line recycling treatment technique and special device thereof | |
| CN207451686U (en) | A kind of raising film producing water ratio processing system | |
| CN204803134U (en) | Professional equipment of online resourceful treatment technology of gasification buck | |
| CN107151072A (en) | A kind of handling process of desulfurization wastewater | |
| CN104973724A (en) | Steel strip wastewater zero-discharge retreatment system and method | |
| CN215559486U (en) | Alkali-resistant tubular membrane and RO membrane system treatment process circulating water | |
| CN204173955U (en) | The medical reverse osmose pure-water system of a kind of energy-saving and water-saving and water quality safety | |
| CN206901956U (en) | GTCC power plant wastewater zero discharge processing unit | |
| CN207243656U (en) | A kind of processing system of high-concentration ammonia nitrogenous wastewater | |
| CN105668860A (en) | Desulfurization wastewater zero-emission and resource comprehensive treatment recycling method and equipment | |
| CN103373774A (en) | Membrane-method high-powered recycling process for fluoride-containing wastewater generated by photovoltaic industry and dedicated system of membrane-method high-powered recycling process | |
| CN105000736A (en) | Process method for nanofiltration concentrated liquor reduction of landfill leachate | |
| CN201942582U (en) | Metallurgy waste water treatment device | |
| CN204237642U (en) | A kind of special purpose device of Coal Chemical Industry haline water purification process technique | |
| CN204342567U (en) | Boiler feed water reverse osmosis treatment system | |
| CN106673269A (en) | Nickel-containing wastewater treatment system | |
| CN202729917U (en) | Membrane method high-powered recovery process special system for photovoltaic industrial fluoride waste | |
| CN204958571U (en) | Coking wastewater nanofiltration concentrate processing apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150916 |