CN208732745U - A kind of device using flue gas successive reaction removal waste water hardness - Google Patents
A kind of device using flue gas successive reaction removal waste water hardness Download PDFInfo
- Publication number
- CN208732745U CN208732745U CN201820912734.0U CN201820912734U CN208732745U CN 208732745 U CN208732745 U CN 208732745U CN 201820912734 U CN201820912734 U CN 201820912734U CN 208732745 U CN208732745 U CN 208732745U
- Authority
- CN
- China
- Prior art keywords
- absorption tower
- waste water
- flue gas
- successive reaction
- blower
- 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.)
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Links
- 239000002351 wastewater Substances 0.000 title claims abstract description 46
- 239000003546 flue gas Substances 0.000 title claims abstract description 42
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 24
- 238000010521 absorption reaction Methods 0.000 claims abstract description 51
- 238000000746 purification Methods 0.000 claims abstract description 13
- 239000007789 gas Substances 0.000 claims description 19
- 239000007921 spray Substances 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 25
- 150000003839 salts Chemical class 0.000 description 9
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 239000002002 slurry Substances 0.000 description 5
- 238000003889 chemical engineering Methods 0.000 description 4
- 239000012267 brine Substances 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 238000009993 causticizing Methods 0.000 description 3
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- 241001131796 Botaurus stellaris Species 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000005255 carburizing Methods 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000005352 clarification Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000790917 Dioxys <bee> Species 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 235000001055 magnesium Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a kind of devices using flue gas successive reaction removal waste water hardness, including clarifier, heat exchanger, blower, absorption tower, feed pump and circulating pump；The clarifier is connected with absorption tower by heat exchanger and blower and absorption tower, the feed pump and circulating pump；In use, flue gas is blasted in absorption tower, waste water is pumped into absorption tower by feed pump, and the waste water in absorption tower is recycled by circulating pump after clarifier purification and heat exchanger heat exchange by blower.The device can continuously carry out reacting for flue gas and waste water, except the water outlet after hard reaches the state of continuous-stable.Compared with the reactor tank of interval, the system and installation area are small, and operational efficiency is high, and equipment investment and operating cost are all substantially reduced.
Description
Technical field
The utility model relates to waste water treatment system and engineering device technique fields, and in particular to a kind of continuously anti-using flue gas
The device of waste water hardness should be removed.
Background technique
Except hard purification is a significant process of wastewater treatment and salt chemical engineering bittern purifying.The a large amount of calcium and magnesiums contained in water from
Son and silica etc. can seriously affect the normal operation of follow-up equipment and process.It is main at present except hard purification process have it is double
Alkaline process, lime-soda process and lime-flue gas method.The technique of Dual alkali and lime-soda process is relatively simple, one-time investment compared with
It is small, the clarification time is short, but except hard purification higher cost；The technique of lime-flue gas method is relatively complicated, one-time investment is larger,
Clarification time is long, but cost is relatively low for purification.Therefore, large-scale chemical enterprises gradually start to carry out using lime-flue gas method
Brine is except hard purification.
However, current lime-flue gas method hardness removing process all uses the technique of intermittent reaction, i.e. causticizing reaction and carbonization
Reaction all carries out in large-scale reactive tank, and after causticizing reaction, water outlet, which enters back into carburizing reagent slot, to be carried out, reaction time consumption
And it is difficult to steady and continuous operation.For this purpose, requiring to design several reactive tanks, alternate cycles take up an area face to reach continuous water outlet
Product is huge, and process efficiency is low.In fact, causticizing reaction process can achieve continuous operation, but since carburizing reagent is
One gas liquid reaction is either all not carried out continuous operation in wastewater treatment or the salt chemical engineering bittern purifying field.
Utility model content
The purpose of the utility model is to provide a kind of device using flue gas successive reaction removal waste water hardness, Ke Yiyou
Effect ground reduces equipment investment and operation energy consumption.
The purpose of this utility model can reach by the following technical programs:
A method of waste water hardness being removed using flue gas successive reaction, flue gas is purified by clarifier and heat exchanger
It after heat exchange, is blasted in absorption tower by blower, waste water is pumped into absorption tower by feed pump, and the waste water in absorption tower is carried out by circulating pump
Circulation, and with the flue gas that blower blasts react and absorption tower is continuously discharged after the hardness of removing waste water, tail gas is from absorption tower
Top discharge, salt slurry are discharged from absorb the bottom of the tower.
The described method using flue gas successive reaction removal waste water hardness contains carbon dioxide gas body in flue gas
Product content is greater than 5%.
The method using flue gas successive reaction removal waste water hardness, heat exchanger exit effluent gas temperature is in 5-90
℃。
The method using flue gas successive reaction removal waste water hardness, heat exchanger exit effluent gas temperature is in 10-
50℃。
The dedicated unit of the method using flue gas successive reaction removal waste water hardness, including clarifier, heat exchange
Device, blower, absorption tower, feed pump and circulating pump；The clarifier passes through heat exchanger and blower and absorption tower, the charging
Pump and circulating pump are connected with absorption tower；In use, flue gas is blasted after clarifier purification and heat exchanger heat exchange by blower
In absorption tower, waste water is pumped into absorption tower by feed pump, and the waste water in absorption tower is recycled by circulating pump.
The structure on the absorption tower includes shell, spray thrower, gas distributor, collecting tank, detection instrument.The spray
Device, gas distributor being drenched, collecting tank is each provided in shell, wherein spray thrower is located at top, and gas distributor is located at middle and lower part,
Collecting tank is located at bottom；Detection instrument is located on shell.
The dedicated unit of the method using flue gas successive reaction removal waste water hardness, waste water are pumped by feed pump
In absorption tower, entrance is on pipeloop or on the ontology of absorption tower.
The dedicated unit of the method using flue gas successive reaction removal waste water hardness, detection instrument include at least
PH meter, conductivity gauge, liquidometer, flowmeter, thermometer, one of pressure gauge or more than one combination.
The utility model has the advantages that the method and device of the utility model, flue gas after clarifier purification and heat exchanger heat exchange, by
Blower blasts in absorption tower, and waste water is pumped into absorption tower by feed pump, and the waste water in absorption tower is recycled by circulating pump, and with
The flue gas that blower blasts carries out that absorption tower is continuously discharged after reacting the hardness for removing waste water, and tail gas is discharged at the top of absorption tower,
Salt slurry is discharged from absorb the bottom of the tower.Reacting for flue gas and waste water can be continuously carried out, except the water outlet after hard reaches continuous steady
Fixed state.Compared with the reactor tank of interval, the system and installation area are small, and operational efficiency is high, equipment investment and operation
Expense is all substantially reduced.
Detailed description of the invention
Fig. 1 is flue gas wastewater hardness removing system flow schematic diagram；
Fig. 2 is the structural schematic diagram on absorption tower
Specific embodiment
Embodiment is described further the utility model below.
Embodiment 1
The device using flue gas successive reaction removal waste water hardness of the application, mainly by by clarifier 1, heat exchanger 2,
Blower 3, absorption tower 4, feed pump 5, the equal components composition of circulating pump 6.Flue gas by clarifier 1 purification and heat exchanger 2 exchange heat after,
It is blasted in absorption tower 4 by blower 3, waste water is pumped into absorption tower 4 by feed pump 5, and the waste water in absorption tower 4 is carried out by circulating pump 6
Circulation, and with the flue gas that blower 3 blasts react and absorption tower is continuously discharged after the hardness of removing waste water, tail gas is from absorption tower
Top discharge, salt slurry are discharged from absorb the bottom of the tower.
In above-mentioned apparatus, the primary structure on absorption tower 4 is by shell 41, spray thrower 42, gas distributor 43, collecting tank 44,
Instrument 45 is detected to form.After flue gas after purification and heat exchange is uniformly distributed by gas distributor 43 and top spray device 42 is uniform
The waste water of spray is come into full contact with and is reacted, and the waste water after reaction removes firmly is discharged by 44 top of collecting tank, and salt slurry is deposited in collection
Liquid bath bottom is simultaneously discharged, and detection instrument 45 is used to detect and adjust out the water hardness, which includes at least pH meter, conductance
Instrument, liquidometer, flowmeter, thermometer, one of pressure gauge or more than one combination.Wherein, waste water is pumped by feed pump 4
In absorption tower, entrance can be on pipeloop, can also be on the ontology of absorption tower.In used flue gas, contain dioxy
Change carbon volume concentration of gas phase and is greater than 5%.2 outlet temperature of heat exchanger is at 5-90 DEG C, preferably at 10-50 DEG C.
Successive reaction removal waste water hardness is carried out using the device method particularly includes: flue gas is purified by clarifier 1
After heat exchanger 2 exchanges heat, blasted in absorption tower 4 by blower 3, waste water is pumped into absorption tower 4 by feed pump 5, the waste water in absorption tower 4
It is recycled by circulating pump 6, and carries out that absorption is continuously discharged after reacting the hardness for removing waste water with the flue gas that blower 3 blasts
Tower, tail gas are discharged at the top of absorption tower, and salt slurry is discharged from absorb the bottom of the tower.
Embodiment 2
Carbon dioxide content 8%, 160 DEG C of flue gas, after purification and heat exchange, temperature is reduced to 30 DEG C, by gas
Body distributor come into full contact with reacting even into absorption tower with certain wastewater from chemical industry containing hardness (1600mg/L),
By flowmeter, pH meter detects and adjusts the flow of flue gas and wastewater from chemical industry charging, reaches the water hardness out and is less than 200mg/L.
Embodiment 3
Carbon dioxide content 12%, 130 DEG C of flue gas, after purification and heat exchange, temperature is reduced to 35 DEG C, by gas
Body distributor come into full contact with reacting even into absorption tower with the salt chemical engineering brine containing hardness (1000mg/L),
By liquidometer, pH meter detects and adjusts the flow of flue gas and the charging of salt chemical engineering brine, reaches the water hardness out and is less than 100mg/
L。
Claims (4)
1. a kind of device using flue gas successive reaction removal waste water hardness, which is characterized in that including clarifier (1), heat exchange
Device (2), blower (3), absorption tower (4), feed pump (5) and circulating pump (6)；The clarifier (1) passes through heat exchanger (2) and wind
Machine (3) is connected with absorption tower (4), and the feed pump (5) and circulating pump (6) are connected with absorption tower (4)；In use, flue
Gas is blasted in absorption tower (4), waste water is by feed pump (5) after clarifier (1) purification and heat exchanger (2) heat exchange by blower (3)
It is pumped into absorption tower (4), the waste water in absorption tower (4) is recycled by circulating pump (6).
2. the device according to claim 1 using flue gas successive reaction removal waste water hardness, which is characterized in that described
The structure on absorption tower (4) include shell (41), spray thrower (42), gas distributor (43), collecting tank (44) detects instrument
(45)；The spray thrower (42), gas distributor (43), collecting tank (44) are each provided in shell (41), wherein spray thrower
(42) it is located at top, gas distributor (43) is located at middle and lower part, and collecting tank (44) is located at bottom；Detection instrument (45) is located at shell
(41) on.
3. the device according to claim 1 using flue gas successive reaction removal waste water hardness, which is characterized in that waste water
It is pumped into absorption tower by feed pump, entrance is on pipeloop or on the ontology of absorption tower.
4. the device according to claim 1 using flue gas successive reaction removal waste water hardness, which is characterized in that detection
Instrument (45) includes at least pH meter, conductivity gauge, liquidometer, flowmeter, thermometer, one of pressure gauge or more than one group
It closes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820912734.0U CN208732745U (en) | 2018-06-12 | 2018-06-12 | A kind of device using flue gas successive reaction removal waste water hardness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820912734.0U CN208732745U (en) | 2018-06-12 | 2018-06-12 | A kind of device using flue gas successive reaction removal waste water hardness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208732745U true CN208732745U (en) | 2019-04-12 |
Family
ID=66023871
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820912734.0U Active CN208732745U (en) | 2018-06-12 | 2018-06-12 | A kind of device using flue gas successive reaction removal waste water hardness |
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| CN (1) | CN208732745U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108483683A (en) * | 2018-06-12 | 2018-09-04 | 南京林业大学 | A kind of method and its dedicated unit removing waste water hardness using flue gas successive reaction |
-
2018
- 2018-06-12 CN CN201820912734.0U patent/CN208732745U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108483683A (en) * | 2018-06-12 | 2018-09-04 | 南京林业大学 | A kind of method and its dedicated unit removing waste water hardness using flue gas successive reaction |
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