CN108409019A - Single-action forced-circulation evaporation system and its operation method for dangerous waste treatment fluid - Google Patents
Single-action forced-circulation evaporation system and its operation method for dangerous waste treatment fluid Download PDFInfo
- Publication number
- CN108409019A CN108409019A CN201810465049.2A CN201810465049A CN108409019A CN 108409019 A CN108409019 A CN 108409019A CN 201810465049 A CN201810465049 A CN 201810465049A CN 108409019 A CN108409019 A CN 108409019A
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- Prior art keywords
- separator
- connect
- waste treatment
- treatment fluid
- pump
- 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
- 238000001704 evaporation Methods 0.000 title claims abstract description 34
- 230000008020 evaporation Effects 0.000 title claims abstract description 33
- 239000002699 waste material Substances 0.000 title claims abstract description 30
- 239000012530 fluid Substances 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 41
- 238000007599 discharging Methods 0.000 claims abstract description 19
- 239000012452 mother liquor Substances 0.000 claims abstract description 19
- 150000003839 salts Chemical class 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000000926 separation method Methods 0.000 claims abstract description 15
- 239000007787 solid Substances 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 12
- 238000005119 centrifugation Methods 0.000 claims abstract description 5
- 239000006260 foam Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 230000001376 precipitating effect Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 238000010792 warming Methods 0.000 claims description 2
- 238000002425 crystallisation Methods 0.000 abstract 1
- 230000008025 crystallization Effects 0.000 abstract 1
- 241000370738 Chlorion Species 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002920 hazardous waste Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/06—Flash evaporation
-
- 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
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/12—Halogens or halogen-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/12—Halogens or halogen-containing compounds
- C02F2101/14—Fluorine or fluorine-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Mechanical Engineering (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
A kind of single-action forced-circulation evaporation system and its operation method for dangerous waste treatment fluid, the system includes heater and separator, the hot material mouth of heater discharge port and separator connects, the circulation port of separator is connect by forced circulation pump with heater feed inlet, separator feed inlet is connect with feed pump, separator feedback outlet is connect with mother liquor pond, the top liquid outlet of separator is connected with gas-liquid separation demister, gas-liquid separation demister is connect with condenser, condenser is connect with water storage tank is gone out, the bottom of separator is provided with taper discharge nozzle, taper discharge nozzle is connect with discharging pump, on the one hand discharging pump is connect with stiff kettle, on the one hand it is connect with the returning charge mouth of separator, stiff kettle is connect with centrifuge, centrifuge is connect with mother liquor pond.When operation, dangerous waste treatment fluid recycles between heater and separator, finally by solid salt is collected by centrifugation.The present invention realizes continuous feed and discharging, and the solid salt of crystallization can be discharged in time, will not cause line clogging.
Description
Technical field
The present invention relates to a kind of single-action forced-circulation evaporation system being concentrated by evaporation for dangerous waste treatment fluid and its operation sides
Method belongs to dangerous waste treatment fluid evaporation concentration technique field.
Background technology
Hazardous waste processing is used as a kind of special industry, and dangerous waste treatment fluid complicated component, viscosity is big, and total salt content is very high,
It is easy, in heating surface fouling, to result in blockage to pipeline and heater in evaporation process, once it results in blockage, gently then to influencing to evaporate
Speed, it is heavy then equipment is damaged.Forced-circulation evaporator is recycled using additionaling power, improves flowing velocity, can
Effectively to reduce the generation of fouling.
At present in dangerous waste treatment industry, due to the particularity of dangerous waste treatment fluid, evaporating concentration process is never fine
Solution, traditional method is to be evaporated processing using single-action kettle, the disadvantage is that speed is slower, can not carry out continuous feed life
Production, and the solid salt evaporated cannot release in time, be easy to cause blocking.
Invention content
The present invention for insufficient existing for existing dangerous waste treatment fluid evaporation concentration technique, provide one kind can continuous feed go out
Material, detaches the single-action forced-circulation evaporation system for dangerous waste treatment fluid of the solid salt evaporated, while providing one kind in time
The operation method of the system.
The single-action forced-circulation evaporation system for dangerous waste treatment fluid of the present invention, using following technical scheme：
The system, including heater and separator, the top discharge mouth of heater and the hot material mouth of separator connect, separation
The circulation port of device is connected by forced circulation pump and the feed inlet of heater base, and the feed inlet of separator is connect with feed pump,
The feedback outlet of separator is connect by submerged pump with mother liquor pond, and the top liquid outlet of separator is connected with gas-liquid separation demister,
Gas-liquid separation demister is connect with condenser, and condenser is connect with water storage tank is gone out, and the bottom of separator is provided with taper discharge nozzle,
Taper discharge nozzle is connect with discharging pump, and on the one hand discharging pump is connect with stiff kettle, on the one hand connect with the returning charge mouth of separator, thick
Thick kettle is connect with centrifuge, and centrifuge is connect with mother liquor pond.
The heater is connect by gas-distributing cylinder with vapour source, and air inlet can be arranged on the connecting line of heater and gas-distributing cylinder
Valve.
The top of the gas-distributing cylinder is equipped with safety valve, to ensure safe operation.
The heater is connect with steam condensate (SC) storage tank, and steam condensate (SC) is arranged on connecting line and pumps, to collect storage
Steam condensate (SC).
Condensate pump is set on the condenser and the connecting line for going out water storage tank.
High liquid level sensor and low liquid level sensor are provided in the separator.When liquid level in separator is less than set
Low liquid level when, control feed pump automatic feed, when liquid level in separator reaches the high liquid level of setting, feed pump stop into
Material.It can automatically continuously feed in this way.
The operational process of above-mentioned single-action forced-circulation evaporation system is as described below.
By feed pump, dangerous waste treatment fluid is made to enter separator；It is passed through steam into heater, makes to be warming up in heater
85~105 DEG C；In the entrance sample detection of discharging pump, when precipitating crystalline quality reaches 20%-30%, by discharging pump to
Discharge in stiff kettle, subsequently into centrifuge, by the way that solid salt is collected by centrifugation, the mother liquor for centrifuging generation enters mother liquor pond, then leads to
It crosses submerged pump and is promoted to separator, continue to be concentrated by evaporation, otherwise by discharging pump to separator returning charge；The water generated in separator
Steam enters water outlet storage tank by entering condenser after gas-liquid separation demister foam removal after cooling.
Vacuum degree when whole system is run is -0.08~-0.095MPa.
The present invention is directed to the subsequent evaporation of dangerous waste treatment fluid, realizes continuous feed and discharging, and separation in time evaporates
Solid salt, liquid waste processing liquid solve in the subsequent evaporation process of dangerous waste treatment fluid that evaporation rate is slow up to 8t/h, steam
Solid salt blocks the problem of pipeline.
Description of the drawings
Fig. 1 is principle schematic diagram of the present invention for the single-action forced-circulation evaporation system of dangerous waste treatment fluid.
Wherein：1. feed pump, 2. gas-distributing cylinders, 3. heaters, 4. separators, 5. forced circulation pumps, 6. discharging pumps, under 7. liquid
Pump, 8. centrifuges, 9. vapor-liquid separation demisters, 10. stiff kettles, 11. cooling towers, 12. taper discharge nozzles, 13. steam condensate (SC)s
Storage tank, 14. go out water storage tank, 15. mother liquor ponds, 16. steam condensate (SC)s pump, 17. condensate pumps.
Specific implementation mode
As shown in Figure 1, the single-action forced-circulation evaporation system for dangerous waste treatment fluid of the present invention, includes mainly heater
3, separator 4 and stiff kettle 10.Heater 3 uses steam heater, is connect with vapour source by gas-distributing cylinder 2, on connecting line
Steam valve is set.Intake valve can be arranged on the connecting line of gas-distributing cylinder 2 in heater 3.The top of gas-distributing cylinder 2 is equipped with safety
Valve, when steam pressure reaches setting pressure, safety valve meeting automatically unloading, to ensure that equipment safety is run.Heater 3 also with steaming
Vapour condenses water storage tank 13 and connects, and steam condensate (SC) pump 16 can be arranged on connecting line, to collect storage steam condensate (SC).
Be provided on separator 4 top liquid outlet, upper feed inlet, top liquid return hole, hot material mouth, lower part circulation port, under
Portion's returning charge mouth and bottom pyramidal discharge nozzle 12.The hot material mouth of separator 4 is connect with the top discharge mouth of heater 3, so that by
The material that heater 3 heats enters in separator 4.The lower part circulation port of separator 4 passes through forced circulation pump 5 and heater 3
Bottom feed inlet connection accelerates evaporation so that dangerous waste treatment fluid circulates between heater 3 and separator 4.Separator 4
Upper feed inlet connect with feed pump 1, the top liquid return hole of separator 4 is connect by submerged pump 7 with mother liquor pond 15.Separator
The liquid outlet at 4 tops is connected by pipeline with gas-liquid separation demister 9, the inside of gas-liquid separation demister 9 be equipped with foam removal cap and
Baffle can prevent the foam generated when evaporation from entering water storage tank 14, and gas-liquid separation demister 9 is connect with condenser 11, condense
Device 11 is connect with water storage tank 14 is gone out, and condensate pump 17 is provided on connecting line, by separator 4 go out water condensation after store up
It deposits.The bottom of separator 4 is provided with taper discharge nozzle 12, since the solid salt evaporated is than great, taper discharge nozzle 12 in addition
In the bottom of separator 4, the solid salt steamed can timely enter taper discharge nozzle 12.Taper discharge nozzle 12 by pipeline with go out
6 connection of material pump.On the one hand the discharge port of discharging pump 6 is connect with stiff kettle 10, on the one hand connect with the lower part returning charge mouth of separator 4
It connects, valve is respectively provided on connecting line.Stiff kettle 10 is connect with centrifuge 8, and the liquid outlet of centrifuge 8 is connect with mother liquor pond 15.
When solid salt reaches setting concentration, centrifuge 8 is discharged by stiff kettle 10 in time, by the way that solid salt is collected by centrifugation, mother liquor enters
Mother liquor in mother liquor pond 15 is pumped into separator 4 by submerged pump 7, is recycled again by mother liquor pond 15；When solid salt is not achieved
When setting concentration, the material in taper discharge nozzle 12 can directly be returned to separator 4 by discharging pump 6, and material continuation is made to detach
It is concentrated by evaporation in device 4.
High liquid level sensor and low liquid level sensor are provided in separator 4, when in separator 4 liquid level less than set
When low liquid level, control 1 automatic feed of feed pump, when liquid level reaches the high liquid level of setting in separator 4, feed pump 1 stop into
Material.It can automatically continuously feed in this way.
Above-mentioned single-action forced-circulation evaporation device can dispose a variety of dangerous waste treatment fluids, as long as reaching following index：COD
100000-300000mg/L；Total salt 200000-300000mg/L；Ammonia nitrogen 10000mg/L；Chlorion 150000mg/L；Fluorine ion
100mg/L, you can handled using this device.
The operational process of the single-action forced-circulation evaporation device of the present invention is as described below.
1. opening feed pump 1, dangerous waste treatment fluid is made to enter separator 4, after reaching setting high liquid level, closes feed pump 1, open
Forced circulation pump 5 is opened, so that dangerous waste treatment fluid is recycled between separator 4 and heater 3, is heated.When liquid level in separator 4
When less than set low liquid level, control feed pump 1 starts charging automatically, and continuous automatic feed can be achieved in this way.
2. being vacuumized to whole system by vacuum pump, whole system is set to be in negative pressure state, to make boiling point of liquid drop
It is low, it is conducive to evaporation, when vacuum degree reaches -0.08~-0.095MPa, opens steam valve, open the draining of 2 bottom of gas-distributing cylinder
Valve is closed after emptying steam condensate (SC), opens gas-distributing cylinder 2 and the intake valve on 2 connecting line of heater, is led into heater 2
Steam makes to be to slowly warm up to 85~105 DEG C in heater 2, while opening between steam condensate (SC) storage tank 13 and heater 2
Steam condensate (SC) collection is stored in steam condensate (SC) storage tank 13 by steam condensate (SC) pump 16.
3. the entrance in discharging pump 6 samples, when precipitating crystalline quality reaches the 20%~30% of mixed liquor quality, open
Discharging pump 6 is opened, the discharge into stiff kettle 10 centrifuges the mother liquor of generation subsequently into centrifuge 8 by the way that solid salt is collected by centrifugation
It is promoted to separator 4 into mother liquor pond 15, then by submerged pump 7, continues to be concentrated by evaporation.
4. starting condensate pump 17, the water vapour generated in separator 4 is cold by entering after 9 foam removal of gas-liquid separation demister
Condenser 11 enters water outlet storage tank 14 after cooling.
Claims (8)
1. a kind of single-action forced-circulation evaporation system for dangerous waste treatment fluid, including heater and separator, it is characterized in that：Add
The top discharge mouth of hot device and the hot material mouth of separator connect, and the circulation port of separator passes through forced circulation pump and heater base
Feed inlet connection, the feed inlet of separator connect with feed pump, and the feedback outlet of separator is connect by submerged pump with mother liquor pond,
The top liquid outlet of separator is connected with gas-liquid separation demister, and gas-liquid separation demister is connect with condenser, condenser with go out
Water storage tank connects, and the bottom of separator is provided with taper discharge nozzle, and taper discharge nozzle is connect with discharging pump, discharging pump one side with
Stiff kettle connects, and is on the one hand connect with the returning charge mouth of separator, stiff kettle is connect with centrifuge, and centrifuge is connect with mother liquor pond.
2. the single-action forced-circulation evaporation system according to claim 1 for dangerous waste treatment fluid, it is characterized in that：It is described to add
Hot device is connect by gas-distributing cylinder with vapour source, and intake valve is arranged on the connecting line of heater and gas-distributing cylinder.
3. the single-action forced-circulation evaporation system according to claim 2 for dangerous waste treatment fluid, it is characterized in that：Described point
The top of cylinder is equipped with safety valve.
4. the single-action forced-circulation evaporation system according to claim 1 for dangerous waste treatment fluid, it is characterized in that：It is described to add
Hot device is connect with steam condensate (SC) storage tank, and steam condensate (SC) is arranged on connecting line and pumps.
5. the single-action forced-circulation evaporation system according to claim 1 for dangerous waste treatment fluid, it is characterized in that：It is described cold
Condensate pump is set on condenser and the connecting line for going out water storage tank.
6. the single-action forced-circulation evaporation system according to claim 1 for dangerous waste treatment fluid, it is characterized in that：Described point
From being provided with high liquid level sensor and low liquid level sensor in device.
7. a kind of operation method of the single-action forced-circulation evaporation system described in claim 1 for dangerous waste treatment fluid, special
Sign is：
By feed pump, dangerous waste treatment fluid is made to enter separator；Steam is passed through into heater, make to be warming up to 85 in heater~
105℃；Pass through discharging when precipitating crystalline quality reaches ten to three 12 percent in the entrance sample detection of discharging pump
The discharge into stiff kettle is pumped, subsequently into centrifuge, by the way that solid salt is collected by centrifugation, the mother liquor for centrifuging generation enters mother liquor pond,
Separator is promoted to by submerged pump again, continues to be concentrated by evaporation, otherwise by discharging pump to separator returning charge；It is generated in separator
Water vapour by entering condenser after gas-liquid separation demister foam removal, water outlet storage tank is entered after cooling.
8. the operation method of the single-action forced-circulation evaporation system according to claim 7 for dangerous waste treatment fluid, special
Sign is：Vacuum degree when whole system is run is -0.08~-0.095MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810465049.2A CN108409019A (en) | 2018-05-15 | 2018-05-15 | Single-action forced-circulation evaporation system and its operation method for dangerous waste treatment fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810465049.2A CN108409019A (en) | 2018-05-15 | 2018-05-15 | Single-action forced-circulation evaporation system and its operation method for dangerous waste treatment fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108409019A true CN108409019A (en) | 2018-08-17 |
Family
ID=63139724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810465049.2A Pending CN108409019A (en) | 2018-05-15 | 2018-05-15 | Single-action forced-circulation evaporation system and its operation method for dangerous waste treatment fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108409019A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111508631A (en) * | 2020-04-24 | 2020-08-07 | 清华大学 | External circulation type high-level radioactive waste liquid continuous evaporation concentration denitrator |
| CN111762830A (en) * | 2020-07-01 | 2020-10-13 | 江阴市江中设备制造有限公司 | Alkaline waste water evaporator |
| CN115583680A (en) * | 2022-09-30 | 2023-01-10 | 安徽丹泰仕机电设备有限公司 | Evaporator equipment based on chemical wastewater |
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| CN103623601A (en) * | 2013-12-18 | 2014-03-12 | 温州环诺蒸发器有限公司 | Forced-circulation evaporator |
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| KR101701280B1 (en) * | 2015-10-06 | 2017-02-13 | 두산중공업 주식회사 | Cyclone type liquid-vapor separator and forced circulation type evaporator using the same |
| CN208562020U (en) * | 2018-05-15 | 2019-03-01 | 济南云水腾跃环保科技有限公司 | Single-action forced-circulation evaporation system for dangerous waste treatment fluid |
-
2018
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Patent Citations (5)
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| CN103043841A (en) * | 2012-12-10 | 2013-04-17 | 枣庄中科化学有限公司 | ADCA (Azodicarbonamide) foaming agent liquid waste disposal process |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111508631A (en) * | 2020-04-24 | 2020-08-07 | 清华大学 | External circulation type high-level radioactive waste liquid continuous evaporation concentration denitrator |
| CN111508631B (en) * | 2020-04-24 | 2021-11-09 | 清华大学 | External circulation type high-level radioactive waste liquid continuous evaporation concentration denitrator |
| CN111762830A (en) * | 2020-07-01 | 2020-10-13 | 江阴市江中设备制造有限公司 | Alkaline waste water evaporator |
| CN115583680A (en) * | 2022-09-30 | 2023-01-10 | 安徽丹泰仕机电设备有限公司 | Evaporator equipment based on chemical wastewater |
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Application publication date: 20180817 |