CN203955011U - Flue gas desulfurization, denitrification integrated device - Google Patents
Flue gas desulfurization, denitrification integrated device Download PDFInfo
- Publication number
- CN203955011U CN203955011U CN201420360742.0U CN201420360742U CN203955011U CN 203955011 U CN203955011 U CN 203955011U CN 201420360742 U CN201420360742 U CN 201420360742U CN 203955011 U CN203955011 U CN 203955011U
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- CN
- China
- Prior art keywords
- flue gas
- ammoniacal liquor
- deduster
- ozone
- absorption tower
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of flue gas desulfurization, denitrification integrated device, relate to chemical industry desulphurization and denitration equipment.Comprise the deduster, ozone reaction device, absorption tower, moisture trap, ammoniacal liquor supplementary device, ozone generator, the switch board that are arranged in casing, deduster is connected with chimney by pipeline; The gas approach of ozone reaction device is connected with deduster, and exhanst gas outlet is connected with the gas approach on absorption tower, and ozone adds entrance and is connected with ozone generator, and electric heater is connected with switch board, realizes temperature automatically controlled; The exhanst gas outlet on absorption tower is connected with moisture trap, and ammoniacal liquor supplements mouth and is connected with ammoniacal liquor supplementary device, is used for supplementing the pH value that ammoniacal liquor keeps mixed liquor; Moisture trap is also connected with air-introduced machine.The desulfurization degree of the utility model device can reach 99%, and under the cryogenic conditions of 100～200 DEG C, denitration rate can reach more than 85%, can remove other pollutants simultaneously, and floor space is little, convenient transportation.
Description
Technical field
The utility model relates to chemical industry desulphurization and denitration equipment, is specifically related to a kind of flue gas desulfurization, denitrification integrated device.
Background technology
Along with the fast development of China's economy, the SO of discharge
2and NO
xalso constantly increase.The SO being discharged by coal burning
2account for 85% of total release, NO
xaccount for 60% of total release, the two caused acid rain amount accounts for 82% of total acid rainfall, approximately 5,000 hundred million yuan of the economic losses that now annual China Acid Rain Pollution causes.
Traditional flue gas desulfurization and denitrification technology is exactly the combination of wet flue gas desulfurization and SCR (SCR) or SNCR (SNCR) denitration technology.What wet flue gas desulfurization was conventional is the calcium method that adopts lime or lime stone, and desulfuration efficiency is greater than 90%, and its shortcoming is that engineering is huge, and initial cost and operating cost are high, and easily form secondary pollution; When selective-catalytic-reduction denitrified reaction temperature is 250～450 DEG C, denitration rate can reach 70%～90%.This technology maturation is reliable, and especially developed country is widely used in the world at present, but this technological equipment investment is large, needs preheating flue gas, and catalyst costliness and service life are short, has the problems such as ammonia leaks, equipment is perishable simultaneously; SNCR temperature province is 870～1200 DEG C, and denitration rate is less than 50%, and technological equipment investment is large, needs the pre-heat treatment flue gas, and equipment is perishable.
In order to solve prior art above shortcomings, the utility model is intended to research and develop that a kind of technology is simple, and operating cost is low, has the desulphurization and denitration integrated technique of good runnability, applies to smoke comprehensive and administers.
Summary of the invention
The purpose of this utility model is to provide a kind of flue gas desulfurization, denitrification integrated device.
The utility model is achieved through the following technical solutions:
Flue gas desulfurization, denitrification integrated device, comprise the deduster, ozone reaction device, absorption tower, moisture trap, ammoniacal liquor supplementary device, ozone generator, the switch board that are arranged in casing, and wherein said deduster is connected with chimney by pipeline; The gas approach of described ozone reaction device is connected with deduster, and exhanst gas outlet is connected with the gas approach on absorption tower, and ozone adds entrance and is connected with ozone generator, and electric heater is connected with switch board, realizes temperature automatically controlled; The exhanst gas outlet on described absorption tower is connected with moisture trap, and ammoniacal liquor supplements mouth and is connected with ammoniacal liquor supplementary device, is used for supplementing the pH value that ammoniacal liquor keeps mixed liquor; Described moisture trap is also connected with air-introduced machine.
Further, mixed liquor flowmeter and flue gas flow meter are also installed on flue gas pipeline and liquid line, are respectively used to control mixed liquor internal circulating load and flue gas treating capacity.
The utility model device flue gas draws and enters deduster from flue and remove dust, then enter ozone reaction device, in ozone reaction device first by flue gas to 150-180 DEG C, pass into again ozone, in static mixer, flue gas fully mixes with ozone, and the NO in flue gas generates NO under the strong oxidation of ozone
2, mercury generates dimercurion under ozonidation, containing SO
2and NO
2flue gas enter absorption tower, in absorption tower, be filled with the mixed liquor of the composition such as ammoniacal liquor, organic catalyst, mixed liquor circulating pump mixed liquor is evacuated to tower top spray and under, fully mix SO with flue gas through two-stage liquid distributor and Intalox metal tower packing mixed liquor
2and NO
2under the effect of catalyst, react with ammoniacal liquor and generate NH
4sO
4and NH
4nO
4in the time that reaching 35% left and right, concentration emits saline solution from tower bottom tap hole, drying condensing crystallizing obtains chemical fertilizer crystal, the flue gas of removing pollutant enters moisture trap by the moisture removal in flue gas, and the water of collection is discharged by discharge outlet, and clean flue gas is discharged through air-introduced machine, the complete equipment system integration is in casing, convenient transport and lifting, can be used whenever and wherever possible, and technological process as shown in Figure 2.
The desulfurization degree of the utility model device can reach 99%, and under the cryogenic conditions of 100～200 DEG C, denitration rate can reach more than 85%; Adsorbent wide material sources, can adopt deposed ammonia, realize the treatment of wastes with processes of wastes against one another; Can remove the difficult heavy metal contaminants such as mercury, arsenic of removing of other techniques simultaneously; Have the function of dedusting simultaneously, outlet dust exhausting concentration is less than 10mg/m
3; Can reclaim chemical fertilizer byproduct; Running expense economy, floor space is little, convenient transportation.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model device;
Fig. 2 is the process chart of the utility model device operation;
In figure: 1-deduster, 2-ozone reaction device, 3-absorption tower, 4-moisture trap, 5-air-introduced machine, 6-flue gas flow meter, 7-ammoniacal liquor supplementary device, 8-ozone generator, 9-switch board, 10-mixed liquor flowmeter, 11-casing.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Flue gas desulfurization as shown in Figure 1, denitrification integrated device, comprise the deduster 1, ozone reaction device 2, absorption tower 3, moisture trap 4, ammoniacal liquor supplementary device 7, ozone generator 8, the switch board 9 that are arranged in casing 11, wherein said deduster 1 is connected with chimney by pipeline; The gas approach of described ozone reaction device 2 is connected with deduster 1, and exhanst gas outlet is connected with the gas approach on absorption tower 3, and ozone adds entrance and is connected with ozone generator 8, and electric heater is connected with switch board 9, realizes temperature automatically controlled; The exhanst gas outlet on described absorption tower 3 is connected with moisture trap 4, and ammoniacal liquor supplements mouth and is connected with ammoniacal liquor supplementary device 7, is used for supplementing the pH value that ammoniacal liquor keeps mixed liquor; Described moisture trap 4 is also connected with air-introduced machine 5.
Mixed liquor flowmeter 10 and flue gas flow meter 6 are also installed on flue gas pipeline and liquid line, are respectively used to control mixed liquor internal circulating load and flue gas treating capacity.
Claims (2)
1. a flue gas desulfurization, denitrification integrated device, it is characterized in that, comprise the deduster (1), ozone reaction device (2), absorption tower (3), moisture trap (4), ammoniacal liquor supplementary device (7), ozone generator (8), the switch board (9) that are arranged in casing (11), wherein said deduster (1) is connected with chimney by pipeline; The gas approach of described ozone reaction device (2) is connected with deduster (1), exhanst gas outlet is connected with the gas approach of absorption tower (3), ozone adds entrance and is connected with ozone generator (8), and electric heater is connected with switch board (9), realizes temperature automatically controlled; The exhanst gas outlet on described absorption tower (3) is connected with moisture trap (4), and ammoniacal liquor supplements mouth and is connected with ammoniacal liquor supplementary device (7), is used for supplementing the pH value that ammoniacal liquor keeps mixed liquor; Described moisture trap (4) is also connected with air-introduced machine (5).
2. flue gas desulfurization according to claim 1, denitrification integrated device, is characterized in that, mixed liquor flowmeter (10) and flue gas flow meter (6) are also installed on flue gas pipeline and liquid line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420360742.0U CN203955011U (en) | 2014-07-02 | 2014-07-02 | Flue gas desulfurization, denitrification integrated device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420360742.0U CN203955011U (en) | 2014-07-02 | 2014-07-02 | Flue gas desulfurization, denitrification integrated device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203955011U true CN203955011U (en) | 2014-11-26 |
Family
ID=51915654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420360742.0U Expired - Fee Related CN203955011U (en) | 2014-07-02 | 2014-07-02 | Flue gas desulfurization, denitrification integrated device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203955011U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105311934A (en) * | 2014-07-02 | 2016-02-10 | 山西易通环保技术有限公司 | Flue gas desulfurization and denitration integrated apparatus |
-
2014
- 2014-07-02 CN CN201420360742.0U patent/CN203955011U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105311934A (en) * | 2014-07-02 | 2016-02-10 | 山西易通环保技术有限公司 | Flue gas desulfurization and denitration integrated apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141126 Termination date: 20200702 |