CN205710254U - A kind of high slat-containing wastewater Zero emission device for coal chemical industry - Google Patents
A kind of high slat-containing wastewater Zero emission device for coal chemical industry Download PDFInfo
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- CN205710254U CN205710254U CN201620341035.6U CN201620341035U CN205710254U CN 205710254 U CN205710254 U CN 205710254U CN 201620341035 U CN201620341035 U CN 201620341035U CN 205710254 U CN205710254 U CN 205710254U
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Abstract
A kind of high slat-containing wastewater Zero emission device for coal chemical industry, mainly includes activated carbon adsorption reaction member, ED ion isolation unit, MVR, lime set precision processing processing unit.This device is provided with water inlet pipe, outlet pipe, dump pipe, slag-drip opening, dosing unit etc., is provided with respective corollary equipment, has been used for the processing intent of each unit in unit.Can reduce as the pretreatment of MVR that the dirt of MVR is stifled and fouling risk owing to have employed activated carbon adsorption+ED technique, this device tool reduced investment, the advantage such as operating cost is low, have floor space little, and the fabrication and installation cycle is short, and disposal ability is strong.Lime set after process can be with direct reuse.The design with the addition of PLC integrating control, it is thereby achieved that full-automatic unattended feature.
Description
Technical field
This utility model relates to a kind of coal chemical industry sewage processing means, is mainly used in the zero discharge treatment of high slat-containing wastewater, belongs to zero
Draining technology field.
Background technology
Coal Chemical Engineering Project is concentrated mainly on colliery and compares western part and the Northwest of concentration, along with coal chemical industry development increasingly
The discharge of many high-salt wastewaters, but the most effectively processed and make saline Land serious, it is deep into underground pollution subsoil water
Source.Therefore, the zero-discharge technology of high slat-containing wastewater is increasingly paid attention to.
There is no both at home and abroad at present and be truly realized wastewater zero discharge, the coal chemical industrial waste water that especially Halite water amount is bigger, currently for
These high-salt wastewaters mainly utilize electrodialysis or reverse osmosis compound mode to carry out desalinating to high-salt concentrated water to carry out enrichment to process heel row extremely
Vaporizer carries out drying and other treatment, but can produce in evaporating concentration process due to the high COD in high slat-containing wastewater in running
Raw a large amount of foams affect condensed fluid water, simultaneously as the organic matter that exists causes heat exchange contact surface quilt in evaporating concentration process
The Organic substance of mummification hides, and reduces heat-transfer surface, and concentrated effect quickly declines, and therefore vaporizer operation very short time is accomplished by carrying out
Cleaning, therefore, the high operation and maintenance cost simultaneously of waste water zero discharge device fluctuation of service investment is high.
Therefore, shortcoming based on above-mentioned zero discharge treatment present situation, design one more adapts to Coal Chemical Industry in China high salt water treatment technology dress
Put.
It was verified that existing pilot-plant has the disadvantage in that
(1) pretreatment that contemporary devices is general be concentrated by reverse osmosis or electrodialysis after enter vaporizer, owing to not having
The effective organic pollution controlling to enter vaporizer causes evaporator effectiveness quickly to reduce, and can only shut down and be carried out operation.
(2) contemporary devices typically constitutes from ground area relatively greatly, and integration is strong, and investment cost and operating cost are the highest.
(3) pretreatment of some process unit of current device is dosing technique, adds the medicines such as substantial amounts of Calx in haline water
Agent, so can produce substantial amounts of inorganic mud, add sludge treatment expense.
(4) organic pollutant removal in haline water, especially volatility are sufficiently had by contemporary devices owing to not being with or without
Organic pollutants, the COD causing the condensed fluid of vaporizer to contain higher concentration can not process by direct reuse, the most also needs lime set
The reverse osmosis of the supreme pretreatment unit of cooling for reflux, and this lime set water quality is far better than the product water water quality of this reverse osmosis, thus results in
Waste adds operating cost and investment simultaneously.
Utility model content
The purpose of the design is the deficiency for prior art device, proposes a kind of novel giving up for coal chemical industry height saliferous
Water zero discharge device.These device construction and installation are convenient and swift, strong operability, have removal COD, carnallite crystallization, lime set process
Etc. function in the function of one.
The purpose of this utility model is to be achieved through the following technical solutions:
A kind of high slat-containing wastewater Zero emission device for coal chemical industry, it is characterised in that: this device mainly includes that activated carbon is inhaled
Reaction enclosure unit, ED ion isolation unit, MVR vaporizer, lime set precision processing processing unit, activated carbon adsorption reaction member
Being connected with ED ion isolation unit, ED ion isolation unit and two MVR-1 vaporizers are connected with MVR-2 vaporizer,
Wherein MVR-2 vaporizer is connected with monovalent salt crystallizer, and MVR-1 vaporizer is connected with divalent salts crystallizer, at MVR-1
Having lime set precision processing processing unit between vaporizer and MVR-2 vaporizer, this device is additionally provided with water inlet pipe, outlet pipe, accident
Delivery pipe, slag-drip opening, dosing unit.
Absorbent charcoal adsorption tank uses glass steel material.
Activated carbon adsorption unit mainly removes the Organic substance in water, is lowered into the organic pollution of subsequent cell, after reduction
The probability that the dirt of continuous unit is blocked up；
The high slat-containing wastewater that ED ion isolation unit is mainly used for after filtering carries out preliminary salt separation, separates by choosing characteristic
Film makes the monovalent ion in the high slat-containing wastewater of ED unit and high valence ion separate, and can avoid miscellaneous after entering vaporizer
Salt can not the danger of sufficient crystallising；The electricity of MVR unit selection routine drives vaporizer, is primarily due to steam-powered vaporizer heat
Utilization rate is relatively low, and operating cost is higher, and maintenance is bigger；Lime set precision processing unit is primarily directed to the steam of MVR generation and coagulates
Liquid can contain volatile organic pollution, therefore arranges high-temperature resin by its purified treatment.
Enforcement by this utility model method, it is possible to reduce the construction of outside RO equipment and operating cost, system investments saving
About 8-15%, operating cost can save 10-20%.It has following advantage compared with conventional equipment:
This device has that floor space is little, it is convenient to install, operation maintenance is convenient, stable.
This design can save the construction of the partial preprocessing units dual membrane system in conventional processes, and it is left that 8-15% is saved in investment
The right side, operating cost can save 10-20%.
The more conventional device of this design is compared, and is provided with absorbent charcoal adsorption tank, and this unit can improve water quality, reduces dirty Organic substance in water
Content, reduce subsequent cell Organic Pollution rate.
This design adds ED unit, main purpose is monovalent ion and divalent ion to be separated, it is to avoid subsequent evaporation
Crystalline element mixed salt cannot crystallize.
The lime set that MVR produces carries out heat exchange with the product water of ED unit, it is possible to reduce the power consumption of MVR, reduces entirety
Operating cost.
This is designed with PLC integration Management, it is possible to achieve unmanned continuous and steady operation, reduces operation maintenance amount and personnel
Administration fee is used.
Accompanying drawing explanation
Below according to accompanying drawing, this utility model is described in further detail.
Fig. 1 is this utility model high slat-containing wastewater Zero emission device structure chart for coal chemical industry.
Detailed description of the invention
For illustrating this utility model in more detail, this this utility model embodiment is as follows:
Embodiment 1
As it is shown in figure 1, a kind of high slat-containing wastewater Zero emission device for coal chemical industry, it is characterised in that: this device is main
Including activated carbon adsorption reaction member 1, ED ion isolation unit 2, MVR vaporizer, lime set precision processing processing unit 3, live
Property charcoal adsorption reaction unit 1 is connected with ED ion isolation unit 2, ED ion isolation unit and two MVR-1 vaporizers 4
Being connected with MVR-2 vaporizer 5, wherein MVR-2 vaporizer is connected with monovalent salt crystallizer 6, MVR-1 vaporizer and bivalence
Salt-pepper noise device 7 is connected, and has lime set precision processing processing unit, this device between MVR-1 vaporizer and MVR-2 vaporizer
It is additionally provided with water inlet pipe, outlet pipe, dump pipe, slag-drip opening, dosing unit.
Described absorbent charcoal adsorption tank uses glass steel material.
First water is promoted to absorbent charcoal adsorption tank through pump, and sewage from top to bottom flows through adsorption tanks, and its response time must be by experiment
Determining, being removed by the most of Adsorption of Organic in high saline sewage at this unit, it is left to acid 5 that its water outlet is adjusted pH value
It is forced into ED ion separator by pump, sewage zwitterion film in ED ion separator and the driving of electrode potential behind the right side
Under, by ED ion separator, the monovalent ion in sewage and divalent ion will be separated, the main purpose splitting process is to have
It is beneficial to its crystallization.The waste water rich in monovalent ion after separation enters MVR-1 and concentrates, and should exist rich in the waste water of monovalent ion
Driving heating through electricity in MVR-1 and make sewage constantly heated evaporation, the steam of generation is discharged by steam port, and remaining liq continues
Concentrating until reaching finite concentration heel row to carry out crystallization treatment to monovalent salt crystallizer, the monovalent salt separated carries out pack outward transport.
The lime set produced in this evaporation process first product water with ED ion exchanger carries out heat exchange, will enter the sewage of vaporizer
Water temperature improves, and the lime set after cooling is outer after being replaced by resin absorption to be delivered to water spot, it is possible to reduce power consumption, reduces and runs
Expense.In like manner divalent ion crystallization treatment.
ED ion separator cardinal principle is electrodialysis principle, by selecting the zwitterion film of different performance, by sewage
Valency ion and divalent ion carry out separating treatment.Such as find that its separating effect declines during ED work, need to carry out soda acid cleaning,
Reduce zwitterion film and process scaling salt and/or the organic contamination of chamber.
Method of the present utility model is used for processing chemical industrial park, Ningxia water, and this garden primary recipient is adnexa Coal Chemical Industry reverse osmosis
The high salt height organic wastewaters such as dense water, ion exchange regenerant waste water, contrast with conventional integrated apparatus.Water COD exists
90～about 120mg/L, TDS are at 9000-12000mg/L, and after this processing means processes, after activated carbon adsorption, COD is permissible
Less than 35mg/L, the monovalent salt after ED separates can reach about 20%, enter back into crystallizing evaporator and carry out concentration,
Wherein monovalent salt is mainly NaCl etc., and monovalence crystal salt is transported to Ningxia salt chemical engineering as raw material after pack encapsulation.
This device Inner Mongol coal chemical industry enterprises, its haline water is mainly technique feedwater RO and the dense water of RO of reusing sewage unit,
Water COD is 200～about 250mg/L, and TDS is at 8000-21000mg/L, after this integrated sewage treating apparatus processes
Delivering to chemical enterprises outside crystal salt, lime set is recycled to water treatment plant and re-uses.
Above specific embodiment of the utility model is described, more concrete and detailed, but originally can not therefore be interpreted as
Restriction to this utility model the scope of the claims.It should be pointed out that, for the general technical staff of this area, without departing from
On the premise of design of the present utility model, it is also possible to make some deformation and improvement, these broadly fall into protection model of the present utility model
Enclose.Therefore, the protection domain of this utility model patent is as the criterion with claims.
Claims (2)
1. the high slat-containing wastewater Zero emission device for coal chemical industry, it is characterised in that: this device mainly includes activated carbon adsorption
Reaction member, ED ion isolation unit, MVR vaporizer, lime set precision processing processing unit, activated carbon adsorption reaction member and
ED ion isolation unit is connected, and ED ion isolation unit and two MVR-1 vaporizers are connected with MVR-2 vaporizer, wherein
MVR-2 vaporizer is connected with monovalent salt crystallizer, and MVR-1 vaporizer is connected with divalent salts crystallizer, at MVR-1 vaporizer
And there is between MVR-2 vaporizer lime set precision processing processing unit, this device be additionally provided with water inlet pipe, outlet pipe, dump pipe,
Slag-drip opening, dosing unit.
The high slat-containing wastewater Zero emission device of coal chemical industry the most according to claim 1, it is characterised in that: absorbent charcoal adsorption tank
Use glass steel material.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620341035.6U CN205710254U (en) | 2016-04-21 | 2016-04-21 | A kind of high slat-containing wastewater Zero emission device for coal chemical industry |
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| CN201620341035.6U CN205710254U (en) | 2016-04-21 | 2016-04-21 | A kind of high slat-containing wastewater Zero emission device for coal chemical industry |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110393975A (en) * | 2019-08-19 | 2019-11-01 | 山信软件股份有限公司 | Doctor solution proposes the control method and system of refined salt |
| CN112851007A (en) * | 2021-01-18 | 2021-05-28 | 清控环境(北京)有限公司 | Processing system of high concentrated organic waste water zero release of industry high salt |
-
2016
- 2016-04-21 CN CN201620341035.6U patent/CN205710254U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110393975A (en) * | 2019-08-19 | 2019-11-01 | 山信软件股份有限公司 | Doctor solution proposes the control method and system of refined salt |
| CN110393975B (en) * | 2019-08-19 | 2021-07-23 | 山信软件股份有限公司 | Control method and system for extracting refined salt from desulfurization solution |
| CN112851007A (en) * | 2021-01-18 | 2021-05-28 | 清控环境(北京)有限公司 | Processing system of high concentrated organic waste water zero release of industry high salt |
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