CN106830455A - The electrochemistry in a kind of gas treatment ashing water or Heisui River removes hard turbidity removal integrated apparatus and its processing method and purposes - Google Patents
The electrochemistry in a kind of gas treatment ashing water or Heisui River removes hard turbidity removal integrated apparatus and its processing method and purposes Download PDFInfo
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- CN106830455A CN106830455A CN201710160557.5A CN201710160557A CN106830455A CN 106830455 A CN106830455 A CN 106830455A CN 201710160557 A CN201710160557 A CN 201710160557A CN 106830455 A CN106830455 A CN 106830455A
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- heisui river
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- 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
- C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
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- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/463—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrocoagulation
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- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/123—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using belt or band filters
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/127—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering by centrifugation
-
- 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
- C02F2001/007—Processes including a sedimentation step
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- 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)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
A kind of electrochemistry the invention provides gas treatment ashing water or Heisui River removes hard turbidity removal integrated apparatus and its processing method and purposes, and described device includes the electrochemical reaction area, basicity regulatory region and the settling zone that are sequentially connected.Methods described is：Treating gas treatment ashing water or Heisui River carries out electrochemical treatments, and in-situ preparation flocculation core simultaneously forms flocculation nucleoreticulum；The basicity of coal gasification buck or Heisui River after regulation electrochemical treatments, makes the fouling tendency ionic reaction in coal gasification buck or Heisui River generate sediment, then the coal gasification buck after precipitating and being processed or Heisui River.The method of the invention, integrated Automatic Control effectively removes hardness, turbidity or the suspension of gasification ash water/Heisui River system, the fouling tendency of reduction system, the heat exchange efficiency of raising system, it is ensured that the long-period stable operation of system, can be in coal gasification field wide popularization and application.
Description
Technical field
The invention belongs to coal gasification buck or usage on black water technical field, it is related to a kind of gas treatment ashing water or Heisui River
Device and its processing method and purposes, more particularly to the electrochemistry in a kind of gas treatment ashing water or Heisui River remove hard turbidity removal integration
Device and its processing method and purposes.
Background technology
Coal gasification buck/Heisui River system is to ensure the important composition that gasification furnace stabilization, whole coal gasifying process are normally run
Part, it is mainly characterized in that：Temperature is high and excursion is wide；Calcium ion, magnesium ion and silica equal size are high, mainly calcium
Hardness is high；Gasification Heisui River suspension content is high, turbidity is big.Factors above can cause when serious gasification system sedimentation of suspension and
Calcium carbonate and calcium sulfate scaling tendency are serious, so as to influence the heat exchange efficiency of gasification system, make system operation cycle is short, and equipment is non-
Orderly shutdown checking maintenance frequently etc..
Coal water slurry gasification buck/Heisui River is mainly derived from the chilled water (chw) of gasification furnace and the washings of gasification process, wherein removing
Containing including ammonia nitrogen, sulfide (hydrogen sulfide, sulfate radical), chloride and etc. cyanide outside harmful substance, another significant spy
Point, is exactly hardness high (typically in 900mg/L~1200mg/L (with CaCO3Meter)), this be due in coal pulping process, it is necessary to
Addition flux (different because of coal) introduces calcium and magnesium ion in various degree to improve coal gasification condition.
At present, coal gasification buck/Heisui River system is by a series for the treatment of such as high pressure flash, low pressure flash and vacuum flashing
Afterwards, flocculant is added on subsider inlet channel and goes most suspended substances in water removal, adding dispersant in ash water tank prevents knot
Dirt ion is in device interior fouling, it is to avoid the normal operation of influence equipment, is then back to system circulation and uses.Domestic and international technology
The focus of research is concentrated mainly in the species and consumption of flocculant and dispersant, but the major part that flocculant can only be gone in water removal
Suspension, and dispersant can not fundamentally remove fouling tendency ion, to prevent fouling tendency ion that concentration is enriched with system,
Buck/Heisui River system carries out continuous blowdown.
CN 103708632A disclose a kind of Grey water antiscale dispersion agent for gasification, and the resistance is added by gasification ash water system
Dirty dispersant, to disperse calcium ion and magnesium ion, slows down buck fouling, while can the effective suspension such as dispersed silicon and coal ash.
Although the method can to a certain extent slow down the fouling of ash water system and dirty stifled tendency, calcium ions and magnesium ions can not be removed, not from
Fundamentally solve fouling and dirty stifled problem.
CN 102285722A disclose a kind of processing method of coal gasifying process ash water recycling, are by sedimentation basin
Feeding lime and sodium carbonate carry out sofening treatment to buck.The method it is easy to operate, bating effect is good, but anti-to consider flocculation
Process is answered, so that reaction and sedimentation time are long, softening efficiency is low, and sludge quantity is big, and sedimentation basin floor space is big.
Therefore, exploitation one kind can efficiently coal gasification buck/Heisui River hardness and suspension handling process, fundamentally solve
Problem is blocked up in the certainly fouling of system and dirt, it is ensured that gasification system long-period stable operation, imperative.
The content of the invention
Cannot effectively solve fouling and dirty stifled problem for existing coal gasification buck or usage on black water technique, and reaction and
Sedimentation time is long, the low, sludge quantity that softens efficiency is big and the problems such as big sedimentation basin floor space, the invention provides one kind treatment coal
The electrochemistry in gasification ash water or Heisui River removes hard turbidity removal integrated apparatus and its processing method and purposes.Core of the invention is profit
The chemical cooperated emollescence of electricity consumption, most of hardness and suspension etc. in removal coal gasification buck or Heisui River, so as to slow down significantly
The fouling of gasification system and dirty stifled tendency, realize the long-period stable operation of gasification system；Also, need not during this
Addition flocculant and dispersant, have saved cost.
It is that, up to this purpose, the present invention uses following technical scheme：
In a first aspect, this hair provides the electrochemistry in a kind of gas treatment ashing water or Heisui River except hard turbidity removal one is disguised
Put, described device includes the electrochemical reaction area, basicity regulatory region and the settling zone that are sequentially connected.
It is following as currently preferred technical scheme, but not as the present invention provide technical scheme limitation, pass through
Following technical scheme, can preferably reach and realize technical purpose of the invention and beneficial effect.
Used as currently preferred technical scheme, the electrochemistry is filled except hard turbidity removal integrated apparatus including basicity dosing
Put, the basicity chemicals dosing plant is connected with basicity regulatory region.
Preferably, the electrochemistry removes hard turbidity removal integrated apparatus includes the sludge treatment equipment being connected with settling zone, its
Purpose is that the sludge that settling zone is produced is processed.
Preferably, the sludge treatment equipment is to appoint during sheet frame presses mud machine, folded spiral shell pressure mud machine, vacuum belt machine or centrifuge
Meaning it is a kind of or at least two combinations, combination typical case but non-limiting examples have：Sheet frame presses mud machine and folded spiral shell to press mud machine
Combination, folds the combination of spiral shell pressure mud machine and vacuum belt machine, the combination of vacuum belt machine and centrifuge, sheet frame pressure mud machine, folded spiral shell pressure
The combination of mud machine and vacuum belt machine, combination of sheet frame pressure mud machine, folded spiral shell pressure mud machine, vacuum belt machine and centrifuge etc., preferably
For sheet frame presses mud machine.
Preferably, the electrochemistry removes hard turbidity removal integrated apparatus includes power module, the power module and electrochemistry
Reaction zone is connected, its object is to regulate and control electrochemical reaction area condition, so that electrochemical reaction is carried out under reasonable terms.
Preferably, the power template uses any one in dc source, the pulse power or AC power, preferably directly
Stream power supply.
Preferably, the electrochemistry is except hard turbidity removal integrated apparatus are including detecting control module, the detection control module
It is connected with electrochemical reaction area and basicity regulatory region, its object is to the response situation to electrochemical reaction area and basicity regulatory region
It is monitored.
Used as currently preferred technical scheme, the electrochemical reaction area sets electrochemical reactor.
Preferably, the material of the electrochemical reactor be metallic iron, metallic aluminium or alloy in any one or at least two
The combination planted, preferably metallic iron.
Preferably, the settling zone is precipitated or ramp type precipitation using inclined tube-type.
Preferably, the material of the swash plate used in the inclined tube and ramp type precipitation that are used in the inclined tube-type precipitation is independent
Ground in carbon steel, fiberglass or heatproof organic material any one or at least two combination, the combination is typical but unrestricted
Property example has：The combination of carbon steel and fiberglass, the combination of fiberglass and heatproof organic material, carbon steel, fiberglass and heatproof are organic
The combination of material.
Preferably, the heatproof organic material be polytetrafluoroethylene (PTFE), polyethylene or polypropylene in any one or at least two
The combination planted, the combination is typical but non-limiting examples have：The combination of polytetrafluoroethylene (PTFE) and polyethylene, polyethylene and polypropylene
Combination, polytetrafluoroethylene (PTFE), polyethylene and polyacrylic combination etc..
Second aspect, the invention provides a kind of gas treatment ashing water or the method in Heisui River, methods described includes following
Step：
(1) treating gas treatment ashing water or Heisui River carries out electrochemical treatments, and in-situ preparation flocculation core simultaneously forms flocculation core
Net；
(2) coal gasification buck after regulating step (1) electrochemical treatments or the basicity in Heisui River, make coal gasification buck or Heisui River
In fouling tendency ionic reaction generation sediment, then through precipitation processed after coal gasification buck or Heisui River.
In the present invention, the pending coal gasification buck or Heisui River, can be with in-situ preparation efficient flocculatings under electric field action
Core, and then form efficient flocculating nucleoreticulum；The efficient flocculating nucleoreticulum can catch the particulate matter in water during basicity regulation
Deng, formed great quantity of floc alumen ustum, then by precipitation discharge system, reach effectively removal coal gasification buck or Heisui River in it is hard
The effect of degree, turbidity and suspension, reduces the fouling tendency of system.
Used as currently preferred technical scheme, the hardness in step (1) the pending coal gasification buck or Heisui River is
0mg/L~5000mg/L and include 0mg/L, such as 10mg/L, 100mg/L, 500mg/L, 1000mg/L, 1500mg/L,
2000mg/L, 2500mg/L, 3000mg/L, 3500mg/L, 4000mg/L, 4500mg/L or 4900mg/L etc., but simultaneously not only limit
It is equally applicable in other unrequited numerical value in cited numerical value, the number range；Turbidity is 0NTU~100NTU and does not wrap
0NTU, such as 5NTU, 10NTU, 20NTU, 30NTU, 40NTU, 50NTU, 60NTU, 70NTU, 80NTU or 90NTU etc. are included, but simultaneously
It is not limited only to other unrequited numerical value in cited numerical value, the number range equally applicable；Suspension content be 0mg/L~
10000mg/L and include 0mg/L, such as 10mg/L, 100mg/L, 1000mg/L, 3000mg/L, 4000mg/L, 5000mg/
L, 6000mg/L, 7000mg/L, 8000mg/L or 9000mg/L etc., it is not limited to cited numerical value, the number range
Interior other unrequited numerical value are equally applicable.
Preferably, the temperature in step (1) the pending coal gasification buck or Heisui River be 25 DEG C~100 DEG C, such as 27 DEG C,
30 DEG C, 35 DEG C, 40 DEG C, 45 DEG C, 50 DEG C, 55 DEG C, 60 DEG C, 65 DEG C, 70 DEG C, 75 DEG C, 80 DEG C, 85 DEG C, 90 DEG C, 95 DEG C or 97 DEG C
Deng, it is not limited to other unrequited numerical value are equally applicable in cited numerical value, the number range, preferably 50 DEG C~
100℃。
Preferably, the flow in step (1) the pending coal gasification buck or Heisui River is 0m3/ h~500m3/ h and do not include
0m3/ h, such as 10m3/h、30m3/h、50m3/h、100m3/h、200m3/h、300m3/ h or 400m3/ h etc., it is not limited to institute
Other unrequited numerical value are equally applicable in the numerical value enumerated, the number range.
Adjusting current density in electrochemical treatment process as currently preferred technical scheme, described in step (1) is
0A/m2~200A/m2And do not include 0, such as 10A/m2、30A/m2、50A/m2、70A/m2、100A/m2、130A/m2、150A/m2、
170A/m2Or 190A/m2Deng it is not limited to other unrequited numerical value are equally fitted in cited numerical value, the number range
With.
In the present invention, because the temperature of pending coal gasification buck or Heisui River is higher, and hardness, turbidity and suspension contain
Amount is larger, in processes the not free settling such as suspension, and equipment scaling is serious.Thus needed in using electrochemical treatment process
Current density and pH value in reaction are set, with in-situ preparation efficient flocculating core, and then efficient flocculating nucleoreticulum is formed.
If current density is too high, a large amount of flocculation cores can be produced, reactor consumption is big, the lost of life；If current density is too low,
The flocculation core amount of generation is few, and flocculation efficiency declines, and goes out aqueous suspension or turbidity is high.
Used as currently preferred technical scheme, step (2) the regulation basicity is regulation coal gasification buck or Heisui River
PH to 7~14, such as 7.5,8,8.5,9,9.5,10,10.5,11,11.5,12,12.5,13 or 14 etc., it is not limited to institute
Other unrequited numerical value are equally applicable in the numerical value enumerated, the number range, and preferably 8.5~12.
Preferably, conditioning agent used by step (2) the regulation basicity is CO2It is any in gas, NaOH or sodium carbonate
It is a kind of or at least two combination, combination typical case but non-limiting examples have：CO2The combination of gas and NaOH, hydrogen
The combination of sodium oxide molybdena and sodium carbonate, CO2Combination of gas, NaOH and sodium carbonate etc..
Used as currently preferred technical scheme, the sediment that step (2) precipitation process is produced carries out Treatment of Sludge
After discharge.
As currently preferred technical scheme, the described method comprises the following steps：
(1) pending coal gasification buck or Heisui River carry out electrochemical treatments, and regulation current density is 0A/m2~200A/m2And
Do not include 0, in-situ preparation flocculation core simultaneously forms flocculation nucleoreticulum, wherein the hardness in pending coal gasification buck or Heisui River is 0mg/L
~5000mg/L and include 0mg/L, turbidity be 0NTU~100NTU and include 0NTU, suspension content be 0mg/L~
10000mg/L and include 0mg/L, temperature be 50 DEG C~100 DEG C；
(2) coal gasification buck or the basicity in Heisui River after regulating step (1) electrochemical treatments is 7~14 to pH, makes coal gas
Fouling tendency ionic reaction generation sediment in ashing water or Heisui River, then the coal gasification buck or black after precipitating and being processed
Water, the sediment that precipitation process is produced is discharged after carrying out Treatment of Sludge.
More specifically, the described method comprises the following steps：
(1) pending coal gasification buck or Heisui River carry out electrochemical treatments into electrochemical reaction area, by power module
Regulation current density is 0A/m2~200A/m2And not including 0, in-situ preparation flocculation core simultaneously forms flocculation nucleoreticulum, wherein pending
The hardness in coal gasification buck or Heisui River is 0mg/L~5000mg/L and does not include 0mg/L, and turbidity is 0NTU~100NTU and does not wrap
0NTU is included, suspension content is 0mg/L~10000mg/L and does not include 0mg/L, and temperature is 50 DEG C~100 DEG C；
(2) coal gasification buck or Heisui River after electrochemical treatments enters basicity regulatory region, is added by basicity chemicals dosing plant
Conditioning agent, the basicity of coal gasification buck or Heisui River after regulating step (1) electrochemical treatments is 7~14 to pH, makes coal gas ashing
Fouling tendency ionic reaction generation sediment in water or Heisui River, subsequently into settling zone, the coal gasification after being processed through precipitation
Buck or Heisui River, the sediment feeding sludge treatment equipment that precipitation process is produced are discharged after carrying out Treatment of Sludge.
In above-mentioned whole process the reaction condition of electrochemical reaction area and basicity regulatory region is monitored by detecting control module.
The third aspect, hard turbidity removal integrated apparatus purposes is removed the invention provides above-mentioned electrochemistry, and the electrochemistry is removed
Hard turbidity removal integrated apparatus are embedded in existing coal gasification buck and/Heisui River system, so that it is used as in coal gasifying process system
A part, to reduce floor space, improves treatment effeciency.
Preferably, by the electrochemistry except hard turbidity removal integrated apparatus are embedded in existing coal gasification buck and/Heisui River system,
It is connected by pipeline with the flash distillation plant in existing coal gasification buck and/Heisui River system, subsider or defecator.
Compared with prior art, the invention has the advantages that：
The present invention cooperates with emollescence using electrochemistry, most of hardness and suspension in removal coal gasification buck or Heisui River
Deng total hardness of water being used less than 400mg/L, turbidity ＜ 3NTU, concentration of suspension as little as 100mg/L, so as to slow down gasification significantly
The fouling of system and dirty stifled tendency, realize the long-period stable operation of gasification system；In addition, device fully automatic operation, treatment
Efficiency high, sludge quantity is few, and floor space is small.
Brief description of the drawings
Fig. 1 is the structural representation that electrochemistry removes hard turbidity removal integrated apparatus described in the embodiment of the present invention 1,
Wherein, 1- electrochemical reactors, 2- basicity regulatory regions, 3- settling zones, 4- basicity chemicals dosing plants, 5- Treatment of Sludge dress
Put, 6- power modules, 7- detection control modules.
Specific embodiment
For the present invention is better described, technical scheme is readily appreciated, below to the present invention further specifically
It is bright.But following embodiments is only simple example of the invention, the scope of the present invention is not represented or limits, this
Invention protection domain is defined by claims.
Specific embodiment of the invention part provides a kind of gas treatment ashing water or the electrochemistry in Heisui River removes hard turbidity removal one
Body makeup is put and its processing method, and described device includes the electrochemical reaction area 1, basicity regulatory region 2 and the settling zone that are sequentially connected
3。
The treating method comprises following steps：
(1) treating gas treatment ashing water or Heisui River carries out electrochemical treatments, and in-situ preparation flocculation core simultaneously forms flocculation core
Net；
(2) coal gasification buck after regulating step (1) electrochemical treatments or the basicity in Heisui River, make coal gasification buck or Heisui River
Middle fouling tendency ionic reaction generates sediment, then the coal gasification buck after precipitating and being processed or Heisui River.
Embodiment 1：
As shown in figure 1, the electrochemistry for present embodiments providing a kind of gas treatment ashing water or Heisui River removes hard turbidity removal integrally
Makeup is put, and described device includes the electrochemical reaction area 1, basicity regulatory region 2 and the settling zone 3 that are sequentially connected.
The electrochemistry also includes basicity chemicals dosing plant 4, sludge treatment equipment 5, power supply mould except hard turbidity removal integrated apparatus
Block 6 and detection control module 7, the basicity chemicals dosing plant 4 is connected with basicity regulatory region 2, the sludge treatment equipment 5 and precipitates
Area 3 is connected, and the power module 6 is connected with electrochemical reaction area 1, described to detect control module 7 and electrochemical reaction area 1 and alkali
Degree regulatory region 2 is connected.
Wherein, the sludge treatment equipment 5 is that sheet frame presses mud machine, and power template 6 uses dc source, electrochemical reaction area
1 sets electrochemical reactor, and its material is metallic iron, and settling zone 3 is precipitated using inclined tube-type, and the material of inclined tube is carbon steel.
Embodiment 2：
The electrochemistry in a kind of gas treatment ashing water or Heisui River is present embodiments provided except hard turbidity removal integrated apparatus, it is described
Device is folded spiral shell pressure mud machine except the sludge treatment equipment 5, and power template 6 uses the pulse power, and electrochemical reaction area 1 is set
The material of electrochemical reactor be metallic aluminium, settling zone 3 is precipitated using ramp type, the material of swash plate for outside fiberglass, other
Structure is identical with device in embodiment 1.
Embodiment 3：
The electrochemistry in a kind of gas treatment ashing water or Heisui River is present embodiments provided except hard turbidity removal integrated apparatus, it is described
Device is vacuum belt machine except the sludge treatment equipment 5, and power template 6 uses AC power, and settling zone 3 uses inclined tube-type
Precipitation, the material of inclined tube is for outside heatproof organic material polytetrafluoroethylene (PTFE), other structures are identical with device in embodiment 1.
Embodiment 4：
A kind of method for processing space flight stove coal gasification Heisui River is present embodiments provided, methods described is using in embodiment 1
Device carry out.
The space flight stove coal gasification Heisui River is the water outlet of space flight stove coal gasification Heisui River system high pressure flash tank, and it is total hard
It is 1950mg/L to spend, and suspension is 7320mg/L, 90 DEG C of water temperature.The Heisui River of the space flight stove coal gasification is logical from hp flash drum
Cross pipeline and be connected to electrochemistry described in embodiment 1 and remove hard turbidity removal integrated apparatus.
Detailed process is as follows：
(1) pending space flight stove coal gasification Heisui River carries out electrochemical treatments into electrochemical reaction area 1, by power supply mould
Block regulation current density is 50A/m2, iron-based electrochemical reactor in-situ preparation efficient flocculating core and forms height under electric field action
Effect flocculation nucleoreticulum；
(2) the space flight stove coal gasification Heisui River after electrochemical treatments enters basicity regulatory region 2, is thrown by basicity chemicals dosing plant
Plus conditioning agent NaOH and sodium carbonate, the basicity of the coal gasified black water after regulating step (1) electrochemical treatments to pH is 11.0,
The calcium ion and basicity reaction generation sediment in water, efficient flocculating nucleoreticulum is set to catch particulate matter in water etc., form a large amount of waddings
Body alumen ustum；Subsequently into settling zone 3, gasification system is delivered in the space flight stove coal gasification Heisui River after being processed through precipitation, is precipitated
The sediment feeding sludge treatment equipment 5 that process is produced carries out Treatment of Sludge discharge.
In above-mentioned whole process the reaction shape of electrochemical reaction area 1 and basicity regulatory region 2 is monitored by detecting control module 7
Condition.
The total hardness in the space flight stove coal gasification Heisui River after being processed through the present embodiment is 330mg/L, turbidity ＜ 3NTU, is suspended
Thing concentration is 83mg/L.
Embodiment 5：
A kind of method for processing space flight stove coal gasification buck is present embodiments provided, methods described is using in embodiment 2
Device carry out.
The space flight stove coal gasification buck is the water outlet of space flight stove coal gasification ash water system defecator, and its total hardness is
1160mg/L, suspension is 52mg/L, 65 DEG C of water temperature.The buck of the space flight stove coal gasification passes through pipeline from hp flash drum
It is connected to the electrochemistry described in embodiment 1 and removes hard turbidity removal integrated apparatus.
Detailed process is as follows：
(1) pending space flight stove coal gasification buck carries out electrochemical treatments into electrochemical reaction area 1, by power supply mould
Block regulation current density is 60A/m2, aluminium base electrochemical reactor in-situ preparation efficient flocculating core and forms height under electric field action
Effect flocculation nucleoreticulum；
(2) the space flight stove coal gasification buck after electrochemical treatments enters basicity regulatory region 2, is thrown by basicity chemicals dosing plant
Plus conditioning agent NaOH and carbon dioxide, the basicity of the coal gasification buck after regulating step (1) electrochemical treatments to pH is
10.0, the calcium ion and basicity reaction generation sediment in water, efficient flocculating nucleoreticulum is caught particulate matter in water etc., is formed big
Amount flco alumen ustum；Subsequently into settling zone 3, the space flight stove coal gasification buck after being processed through precipitation delivers to gasification system,
The sediment feeding sludge treatment equipment 5 that precipitation process is produced carries out Treatment of Sludge discharge.
In above-mentioned whole process the reaction shape of electrochemical reaction area 1 and basicity regulatory region 2 is monitored by detecting control module 7
Condition.
The total hardness in the space flight stove coal gasification Heisui River after being processed through the present embodiment is 240mg/L, turbidity ＜ 3NTU, is suspended
Thing concentration is 10mg/L.
Embodiment 6：
A kind of method for processing multiinjector coal slurry gasifier buck is present embodiments provided, methods described uses embodiment
Device in 3 is carried out.
The total hardness of the multiinjector coal slurry gasifier buck is 1220mg/L, and suspension is 52mg/L, and turbidity is
15.28NTU, 65 DEG C of water temperature, the electrochemistry that buck is connected to described in embodiment 1 from subsider by pipeline removes hard turbidity removal integrally
Makeup is put.
Detailed process is as follows：
(1) pending multiinjector coal slurry gasifier buck carries out electrochemical treatments into electrochemical reaction area 1, by electricity
Source module regulation current density is 70A/m2, iron-based electrochemical reactor in-situ preparation efficient flocculating core and shape under electric field action
Into efficient flocculating nucleoreticulum；
(2) the multiinjector coal slurry gasifier buck after electrochemical treatments enters basicity regulatory region 2, is filled by basicity dosing
Put and add conditioning agent NaOH, the basicity of the buck after regulating step (1) electrochemical treatments is 9.0 to pH, makes the calcium in water
Ion catches particulate matter in water etc., forms great quantity of floc alumen ustum with basicity reaction generation sediment, efficient flocculating nucleoreticulum；Then
Into settling zone 3, the multiinjector coal slurry gasifier buck after being processed through precipitation delivers to gasification system, and precipitation process is produced
Sediment feeding sludge treatment equipment 5 carry out Treatment of Sludge discharge.
In above-mentioned whole process the reaction shape of electrochemical reaction area 1 and basicity regulatory region 2 is monitored by detecting control module 7
Condition.
The total hardness in the space flight stove coal gasification Heisui River after being processed through the present embodiment is 280mg/L, turbidity ＜ 3NTU, is suspended
Thing concentration is 9mg/L.
Comparative example 1：
This comparative example provides a kind of method for processing space flight stove coal gasification Heisui River, and methods described is not except carrying out basicity
Regulation is outer, and other processing procedures are in the same manner as in Example 4.
The total hardness in the space flight stove coal gasification Heisui River after being processed through this comparative example is 550mg/L, and turbidity is 12NTU, is hanged
Float concentration is 420mg/L.
Comparative example 2：
This comparative example provides a kind of method for processing space flight stove coal gasification Heisui River, and methods described is not except carrying out electrification
Learn treatment outer, other processing procedures are in the same manner as in Example 4.
The total hardness in the space flight stove coal gasification Heisui River after being processed through this comparative example is 660mg/L, and turbidity is 23NTU, is hanged
Float concentration is 560mg/L.
The result of summary embodiment and comparative example can be seen that the present invention and cooperate with emollescence using electrochemistry, go
Except most of hardness and suspension etc. in coal gasification buck or Heisui River, total hardness of water is used less than 400mg/L, turbidity ＜ 3NTU,
Concentration of suspension as little as 100mg/L, so as to slow down the fouling of gasification system and dirty stifled tendency significantly, realizes the length of gasification system
Cycle stability runs；In addition, device fully automatic operation, treatment effeciency is high, and sludge quantity is few, and floor space is small.
Applicant states that the present invention illustrates method detailed of the invention by above-described embodiment, but the present invention not office
It is limited to above-mentioned method detailed, that is, does not mean that the present invention has to rely on above-mentioned method detailed and could implement.Art
Technical staff it will be clearly understood that any improvement in the present invention, equivalence replacement and auxiliary element to each raw material of product of the present invention
Addition, selection of concrete mode etc., within the scope of all falling within protection scope of the present invention and disclosing.
Claims (10)
1. the electrochemistry in a kind of gas treatment ashing water or Heisui River removes hard turbidity removal integrated apparatus, it is characterised in that described device
Including the electrochemical reaction area (1), basicity regulatory region (2) and settling zone (3) that are sequentially connected.
2. electrochemistry according to claim 1 removes hard turbidity removal integrated apparatus, it is characterised in that the electrochemistry is removed and removed firmly
Turbid integrated apparatus include basicity chemicals dosing plant (4), and the basicity chemicals dosing plant (4) is connected with basicity regulatory region (2)；
Preferably, the electrochemistry removes hard turbidity removal integrated apparatus includes the sludge treatment equipment (5) being connected with settling zone (3)；
Preferably, the sludge treatment equipment (5) is to appoint during sheet frame presses mud machine, folded spiral shell pressure mud machine, vacuum belt machine or centrifuge
Meaning it is a kind of or at least two combinations, preferably sheet frame pressure mud machine；
Preferably, the electrochemistry removes hard turbidity removal integrated apparatus includes power module (6), the power module (6) and electrification
Reaction zone (1) is learned to be connected；
Preferably, the power template (6) uses any one in dc source, the pulse power or AC power, preferably directly
Stream power supply；
Preferably, the electrochemistry removes hard turbidity removal integrated apparatus includes Monitoring and Controlling module (7), the Monitoring and Controlling module
(7) it is connected with electrochemical reaction area (1) and basicity regulatory region (2).
3. electrochemistry according to claim 1 and 2 removes hard turbidity removal integrated apparatus, it is characterised in that the electrochemistry is anti-
Answer area (1) that electrochemical reactor is set；
Preferably, the material of the electrochemical reactor be in metallic iron, metallic aluminium or alloy any one or at least two
Combination, preferably metallic iron；
Preferably, the settling zone (3) is precipitated or ramp type precipitation using inclined tube-type；
Preferably, the material of the swash plate used in the inclined tube and ramp type precipitation that are used in the inclined tube-type precipitation independently is
In carbon steel, fiberglass or heatproof organic material any one or at least two combination；
Preferably, the heatproof organic material be in polytetrafluoroethylene (PTFE), polyethylene or polypropylene any one or at least two
Combination.
4. a kind of method in gas treatment ashing water or Heisui River, it is characterised in that the described method comprises the following steps：
(1) treating gas treatment ashing water or Heisui River carries out electrochemical treatments, and in-situ preparation flocculation core simultaneously forms flocculation nucleoreticulum；
(2) coal gasification buck after regulating step (1) electrochemical treatments or the basicity in Heisui River, in making coal gasification buck or Heisui River
Fouling tendency ionic reaction generates sediment, then the coal gasification buck after precipitating and being processed or Heisui River.
5. method according to claim 4, it is characterised in that step (1) the pending coal gasification buck or Heisui River
Hardness is 0mg/L~5000mg/L and does not include 0mg/L, and turbidity is 0NTU~100NTU and does not include 0NTU, suspension content
For 0mg/L~10000mg/L and do not include 0mg/L；
Preferably, the temperature in step (1) the pending coal gasification buck or Heisui River be 25 DEG C~100 DEG C, preferably 50 DEG C~
100℃；
Preferably, the flow in step (1) the pending coal gasification buck or Heisui River is 0m3/ h~500m3/ h and include 0m3/
h。
6. the method according to claim 4 or 5, it is characterised in that adjusted in electrochemical treatment process described in step (1)
Current density is 0A/m2~200A/m2And do not include 0.
7. the method according to claim any one of 4-6, it is characterised in that step (2) the regulation basicity is regulation coal
The pH in gasification ash water or Heisui River to 7~14；
Preferably, conditioning agent used by step (2) the regulation basicity is CO2In gas, NaOH or sodium carbonate any one or
At least two combination.
8. the method according to claim any one of 4-7, it is characterised in that it is heavy that step (2) precipitation process is produced
Starch is discharged after carrying out Treatment of Sludge.
9. the method according to claim any one of 4-8, it is characterised in that the described method comprises the following steps：
(1) pending coal gasification buck or Heisui River carry out electrochemical treatments, and regulation current density is 0A/m2~200A/m2And do not wrap
Include 0, in-situ preparation flocculation core simultaneously forms flocculation nucleoreticulum, wherein the hardness in pending coal gasification buck or Heisui River be 0mg/L~
5000mg/L and include 0mg/L, turbidity be 0NTU~100NTU and include 0NTU, suspension content be 0mg/L~
10000mg/L and include 0mg/L, temperature be 50 DEG C~100 DEG C；
(2) coal gasification buck or the basicity in Heisui River after regulating step (1) electrochemical treatments is 7~14 to pH, makes coal gas ashing
Fouling tendency ionic reaction generation sediment in water or Heisui River, then the coal gasification buck after precipitating and being processed or Heisui River, sink
The sediment that shallow lake process is produced is discharged after carrying out Treatment of Sludge.
10. the electrochemistry according to claim any one of 1-3 is except the purposes of hard turbidity removal integrated apparatus, it is characterised in that
By the electrochemistry except hard turbidity removal integrated apparatus are embedded in existing coal gasification buck and/Heisui River system；
Preferably, it is and existing by the electrochemistry except hard turbidity removal integrated apparatus are embedded in existing coal gasification buck and/Heisui River system
There are the flash distillation plant in coal gasification buck and/Heisui River system, subsider or defecator to be connected by pipeline.
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Application publication date: 20170613 |