CN208493802U - A kind of denitration chilling Integral tower - Google Patents
A kind of denitration chilling Integral tower Download PDFInfo
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- CN208493802U CN208493802U CN201820676403.1U CN201820676403U CN208493802U CN 208493802 U CN208493802 U CN 208493802U CN 201820676403 U CN201820676403 U CN 201820676403U CN 208493802 U CN208493802 U CN 208493802U
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Abstract
The utility model provides a kind of denitration chilling Integral tower, it include: tower body, tower body includes the smoke inlet being arranged from top to bottom, level-one temperature descending section, denitration section, second level temperature descending section and exhanst gas outlet, level-one temperature descending section includes level-one cool-down nozzle, it realizes that level-one cools down in such a way that level-one cool-down nozzle is sprayed water, the temperature for entering the flue gas of smoke inlet is down to temperature needed for denitration reaction occurs for denitration section；Denitration section is for making flue gas that denitration reaction occur；Second level temperature descending section includes that second level cool-down nozzle and blower mix air port, sprays water and is mixed by blower from blower second level cool-down nozzle and realize that second level cools down by way of air port introduces air, the temperature of the flue gas after generation denitration reaction is reduced, is then discharged from exhanst gas outlet.Denitration chilling Integral tower according to the present utility model, level-one temperature descending section are cooled down by way of water spray, and second level temperature descending section is cooled down by way of spraying water and introducing air, and denitration and chilling are concentrated in a tower, equipment cost and land occupation are greatlyd save.
Description
Technical field
The utility model relates to danger wastes incineration technology fields, in particular to a kind of denitration chilling integration
Tower more particularly to a kind of denitration chilling Integral tower for plasma melting furnace.
Background technique
Currently, denitration generallys use SNCR (selective non-catalytic reduction), PNCR (macromolecule denitrfying agent method) and SCR (choosing
Selecting property catalysis reduction) method, wherein SNCR and PNCR optimal reaction temperature are higher, at 850 DEG C or so, so will usually take off
Nitre is put in chilling cooling front.The optimal reaction temperature of SCR is lower, at 230 DEG C or so, so SCR is usually placed on de- dioxy
After change sulphur, hydrogen chloride.Since SCR is expensive, and operating cost is high, therefore mostly uses SNCR and PNCR in actual production
Carry out denitration.
The flue gas purification system for the industries such as chilling tower is chiefly used in rubbish, dangerous waste is burned.Since the burnings such as rubbish dangerous waste generate
High-temperature flue gas in containing the harmful substances such as a large amount of dust, dioxin, sour gas, be discharged into if being handled without gas cleaning
Atmosphere can cause secondary pollution to atmosphere.Since flue gas is between 550 DEG C -200 DEG C, dioxin can synthesize again, therefore be suppression
Dioxin processed regenerates, must be in one second quickly by near 200 DEG C of flue gas or less.
The denitration chilling technique comparative maturity of industry is burned for rubbish, dangerous waste at present, but the technology is directly used
In the fume treatment of plasma ash melting, there are many problems.Rubbish, dangerous waste incineration flue gas amount are usually tens of thousands of or even number
100000 mark sides, the dust, sour gas isoconcentration in flue gas are lower.And in plasma ash melting, since plasma is molten
The temperature melted in furnace is high, and in melting process, low-boiling salt enters flue gas to lime-ash, thus dust content is high in high-temperature flue gas.
In addition, acidic gas concentration is high, and for 24 tons of melting furnace of day output, exhaust gas volumn is less than 1,000 mark sides since exhaust gas volumn is small.
There is presently no the wet process towers for being capable of handling such high concentration, small exhaust gas volumn.
Therefore, it is necessary to provide a kind of new denitration chilling Integral tower, to solve the above technical problems.
Utility model content
A series of concept of reduced forms is introduced in utility model content part, this will be in specific embodiment part
Middle further description.The utility model content part of the utility model is not meant to attempt to limit claimed
Technical solution key feature and essential features, do not mean that the guarantor for attempting to determine technical solution claimed more
Protect range.
For current deficiency, the utility model provides a kind of denitration chilling Integral tower, comprising: tower body, the tower body
Including smoke inlet, level-one temperature descending section, denitration section, second level temperature descending section and the exhanst gas outlet being arranged from top to bottom, wherein described one
Grade temperature descending section includes level-one cool-down nozzle, realizes that level-one cools down in such a way that the level-one cool-down nozzle is sprayed water, will enter institute
The temperature for stating the flue gas of smoke inlet is down to temperature needed for denitration reaction occurs for the denitration section；The denitration section is for making institute
It states flue gas and the denitration reaction occurs；The second level temperature descending section includes that second level cool-down nozzle and blower mix air port, passes through described two
Grade cool-down nozzle sprays water and realizes that second level cools down from the mode that the blower mixes air port introducing air by blower, will occur described de-
The temperature of flue gas after nitre reaction reduces, and is then discharged from the exhanst gas outlet.
It further, further include being arranged in the level-one temperature descending section and/or the denitration section and/or the second level temperature descending section
Deflector.
Further, the deflector is arranged in vertical.
Further, denitration section is PNCR denitration section.
It further, further include the ash bucket that the tower body bottom is set.
Further, the quantity of the second level cool-down nozzle is 3-5, and the water that the second level cool-down nozzle sprays is room temperature
Water.
Further, the quantity of the blower is 3-5, and the air that the blower introduces is normal temperature air.
Further, the flue gas is 2-5 seconds in the residence time of the denitration section.
It further, is 1000 DEG C -1200 DEG C into the temperature of the flue gas of the smoke inlet.
Further, temperature needed for the denitration reaction occurs for the denitration section is 800 DEG C -900 DEG C, the second level cooling
The temperature of flue gas after the denitration reaction occurs is reduced to 160 DEG C or less by section.
In conclusion denitration chilling Integral tower according to the present utility model, including level-one temperature descending section, denitration section and second level
Temperature descending section, wherein level-one temperature descending section realizes that level-one cools down in such a way that level-one cool-down nozzle is sprayed water, and second level temperature descending section passes through two
The mode that grade cool-down nozzle water spray and blower introduce air realizes that second level cools down, and denitration and chilling effectively can be concentrated on one
In a tower, equipment cost and land occupation can be greatlyd save.
Detailed description of the invention
The following drawings of the utility model is used to understand the utility model in this as a part of the utility model.Attached drawing
In show the embodiments of the present invention and its description, for explaining the principles of the present invention.
In attached drawing:
Fig. 1 is the structural schematic diagram of the denitration chilling Integral tower of the utility model embodiment.
Description of symbols:
100, denitration chilling Integral tower 101, tower body
102, smoke inlet 103, level-one temperature descending section
1031, level-one cool-down nozzle 104, denitration section
105, deflector 106, second level temperature descending section
1061, second level cool-down nozzle 1062, blower mix air port
107, exhanst gas outlet 108, ash bucket
Specific embodiment
In the following description, a large amount of concrete details are given more thoroughly to manage in order to provide to the utility model
Solution.It is, however, obvious to a person skilled in the art that the utility model may not need it is one or more of these thin
It saves and is carried out.In other examples, in order to avoid obscuring with the utility model, for more well known in the art
Technical characteristic is not described.
In order to thoroughly understand the utility model, specific embodiment will be proposed in following description, to illustrate this
Utility model how to improve presently, there are the problem of.Obviously, the execution of the utility model is not limited to those skilled in the art
The specific details that member is familiar with.The preferred embodiment of the utility model is described in detail as follows, however other than these detailed descriptions,
The utility model can also have other embodiments.
It should be understood that when the term " comprising " and/or " including " is used in this specification, indicating described in presence
Feature, entirety, step, operation, element and/or component, but do not preclude the presence or addition of other one or more features, entirety,
Step, operation, element, component and/or their combination.
The denitration chilling technique comparative maturity of industry is burned for rubbish, dangerous waste at present, but the technology is directly used
In the fume treatment of plasma ash melting, there are many problems.Rubbish, dangerous waste incineration flue gas amount are usually tens of thousands of or even number
100000 mark sides, the dust, sour gas isoconcentration in flue gas are lower.And in plasma ash melting, since plasma is molten
The temperature melted in furnace is high, and in melting process, low-boiling salt enters flue gas to lime-ash, thus dust content is high in high-temperature flue gas.
In addition, acidic gas concentration is high, and for 24 tons of melting furnace of day output, exhaust gas volumn is less than 1,000 mark sides since exhaust gas volumn is small.
There is presently no the wet process towers for being capable of handling such high concentration, small exhaust gas volumn.
Exemplary embodiment
Fig. 1 shows a kind of structural schematic diagram of denitration chilling Integral tower 100 of the embodiments of the present invention.Below
Specifically describe the denitration chilling Integral tower 100 referring to Fig.1.
As shown in Figure 1, the utility model provides a kind of denitration chilling Integral tower 100, including tower body 101, the tower body
Including smoke inlet 102, level-one temperature descending section 103, denitration section 104, second level temperature descending section 106 and the exhanst gas outlet being arranged from top to bottom
107, wherein the level-one temperature descending section 103 includes level-one cool-down nozzle 1031, is sprayed water by the level-one cool-down nozzle 1031
Mode realizes that level-one cools down, and it is anti-that the temperature for entering the flue gas of the smoke inlet 102 is down to the generation of denitration section 104 denitration
Answer required temperature；The denitration section 104 is for making the flue gas that the denitration reaction occur；The second level temperature descending section 106 wraps
It includes second level cool-down nozzle 1061 and blower mixes air port 1062, sprayed water by the second level cool-down nozzle 1061 and (do not shown by blower
Air port 1062 is mixed from the blower introducing the mode of air and realize that second level cools down, the flue gas after the denitration reaction will occur out)
Temperature reduce, then from the exhanst gas outlet 107 be discharged.
Denitration chilling Integral tower according to the present utility model, including level-one temperature descending section 103, denitration section 104 and second level drop
Temperature section 106, wherein level-one temperature descending section 103 realizes that level-one cools down in such a way that level-one cool-down nozzle is sprayed water, second level temperature descending section
106 realize that second level cools down in such a way that second level cool-down nozzle water spray 1061 and blower introduce air, can be effectively by denitration
It is concentrated in a tower with chilling, equipment cost and land occupation can be greatlyd save.
Specifically, the smoke inlet 102 is located at the side on 101 top of tower body, and flue gas enters from the flue gas
Mouth 102 is tangentially into the tower body 101.Temperature into the flue gas of the smoke inlet 102 is 1000 DEG C -1200
DEG C, such as 1100 DEG C.
The top of the tower body 101 is arranged in the level-one temperature descending section 103, and the level-one cool-down nozzle 1031 is arranged in institute
The top of level-one temperature descending section 103 is stated, the water that the level-one cool-down nozzle 1031 sprays is normal-temperature water.
Illustratively, the denitration section 104 is PNCR denitration section, and PNCR (macromolecule denitrfying agent method) is made in no catalyst
Under, nitrogen oxides in effluent is reduced to nitrogen and water using macromolecule denitrfying agent, the reaction temperature of PNCR is 800 DEG C -900
DEG C, optimal reaction temperature is at 850 DEG C or so.Flue gas is 2-5 seconds in the residence time of the denitration section, such as 3 seconds, abundant to occur
Denitration reaction.Flue-gas temperature is down to 800 DEG C -900 DEG C by 1000 DEG C -1200 DEG C by the level-one temperature descending section 103.
The second level temperature descending section 106 includes second level cool-down nozzle 1061 and blower air-vent 1062.The second level cooling spray
The quantity of mouth is 3-5, such as 4, and the water that the second level cool-down nozzle 1061 sprays is normal-temperature water；The blower air-vent
1062 quantity is 3-5, and such as 4, the quantity of blower is consistent with the quantity of the blower air-vent 1062, and the blower draws
The air that air port 1062 introduces is normal temperature air, wherein the air inlet direction of 4 blower air-vents 1062 is tangential.
Further, the denitration chilling Integral tower 100 further includes being arranged in the level-one temperature descending section 103 and/or institute
State the deflector 105 in denitration section 104 and/or the second level temperature descending section 106, for enhancing turbulent flow, make flue gas with by blower from
The air that the blower air-vent 1062 introduces faster mixes, and the deflector 105 is arranged in vertical.At this
In utility model, described lead is provided in the level-one temperature descending section 103, the denitration section 104 and the second level temperature descending section 106
Flowing plate 105.
The denitration chilling Integral tower 100 further includes the ash bucket 108 that 101 bottom of tower body is arranged in, for collecting
The dust condensed during flue gas cool-down.
The working principle of the utility model is that the high-temperature flue gas come out from dual firing chamber is entered by the flue gas on 101 top of tower body
Mouth 102 is tangentially into tower body 101.By the height for being located at 1031 pairs of the level-one cool-down nozzle entrance at 103 top of level-one temperature descending section
Warm flue gas carries out level-one cooling, so that high-temperature flue gas is down to 800 DEG C -900 DEG C from 1000 DEG C -1200 DEG C；Then pass through PNCR sections
Denitration process is carried out to high-temperature flue gas, reserves 2-5 seconds denitration reaction time；Then second level drop is carried out to the flue gas after denitration
Temperature realizes that second level cools down in such a way that four nozzles spray into normal-temperature waters and four blowers introduce normal temperature airs, by flue gas from 800
DEG C -900 DEG C are down to 160 DEG C or less, it is seen then that second level cooling is carried out by the way of wind using water spray in conjunction with mixing.And deflector 105 is used for
Enhancing turbulent flow, mixes flue gas faster with the air introduced by blower air-vent 1062, and ash bucket 108 is for collecting flue gas drop
The dust condensed during temperature.Denitration chilling Integral tower provided by the utility model to from dual firing chamber come out high-temperature flue gas into
Row denitration, chilling and dedusting, and the concentration of dust in flue gas, sour gas is reduced, to reach the condition for entering wet process tower, it is applicable in
In the subsequent processing for the flue gas that plasma melting furnace generates.
In conclusion denitration chilling Integral tower according to the present utility model, including level-one temperature descending section, denitration section and second level
Temperature descending section, wherein level-one temperature descending section realizes that level-one cools down in such a way that level-one cool-down nozzle is sprayed water, and second level temperature descending section passes through two
The mode that grade cool-down nozzle water spray and blower introduce air realizes that second level cools down, and denitration and chilling effectively can be concentrated on one
In a tower, equipment cost and land occupation can be greatlyd save；Deflector makes flue gas and the air by blower introducing for enhancing turbulent flow
Faster mixing；Ash bucket is used to collect the dust condensed during flue gas cool-down.
The utility model is illustrated through the foregoing embodiment, but it is to be understood that, above-described embodiment is
Purpose for illustrating and illustrating, and be not intended to limit the invention within the scope of described embodiment.Furthermore ability
Field technique personnel are it is understood that the utility model is not limited to above-described embodiment, and introduction according to the present utility model is also
More kinds of variants and modifications can be made, these variants and modifications all fall within the utility model range claimed with
It is interior.The protection scope of the utility model is defined by the appended claims and their equivalents.
Claims (10)
1. a kind of denitration chilling Integral tower characterized by comprising
Tower body, the tower body include the smoke inlet being arranged from top to bottom, level-one temperature descending section, denitration section, second level temperature descending section and cigarette
Gas outlet, wherein
The level-one temperature descending section includes level-one cool-down nozzle, realizes that level-one drops in such a way that the level-one cool-down nozzle is sprayed water
The temperature for entering the flue gas of the smoke inlet is down to temperature needed for denitration reaction occurs for the denitration section by temperature；
The denitration section is for making the flue gas that the denitration reaction occur；
The second level temperature descending section includes that second level cool-down nozzle and blower mix air port, is sprayed water by the second level cool-down nozzle and by wind
Machine, which from the blower mixes air port and introduces the mode of air, realizes that second level cools down, and the temperature of the flue gas after the denitration reaction will occur
It reduces, is then discharged from the exhanst gas outlet.
2. denitration chilling Integral tower according to claim 1, which is characterized in that further include that setting cools down in the level-one
Deflector in section and/or the denitration section and/or the second level temperature descending section.
3. denitration chilling Integral tower according to claim 2, which is characterized in that the deflector is vertically set
It sets.
4. denitration chilling Integral tower according to claim 1, which is characterized in that denitration section is PNCR denitration section.
5. denitration chilling Integral tower according to claim 1, which is characterized in that further include being arranged in the tower body bottom
Ash bucket.
6. denitration chilling Integral tower according to claim 1, which is characterized in that the quantity of the second level cool-down nozzle is
3-5, and the water that the second level cool-down nozzle sprays is normal-temperature water.
7. denitration chilling Integral tower according to claim 1, which is characterized in that the quantity of the blower is 3-5, and
The air that the blower introduces is normal temperature air.
8. denitration chilling Integral tower according to claim 1, which is characterized in that the flue gas stops the denitration section
Staying the time is 2-5 seconds.
9. denitration chilling Integral tower according to claim 1, which is characterized in that enter the cigarette of the smoke inlet
The temperature of gas is 1000 DEG C -1200 DEG C.
10. denitration chilling Integral tower according to claim 1, which is characterized in that the denitration occurs for the denitration section
Temperature needed for reaction is 800 DEG C -900 DEG C, and the temperature of the flue gas after the denitration reaction occurs drops in the second level temperature descending section
Down to 160 DEG C or less.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820676403.1U CN208493802U (en) | 2018-05-07 | 2018-05-07 | A kind of denitration chilling Integral tower |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820676403.1U CN208493802U (en) | 2018-05-07 | 2018-05-07 | A kind of denitration chilling Integral tower |
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| CN208493802U true CN208493802U (en) | 2019-02-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114113498A (en) * | 2022-01-25 | 2022-03-01 | 光大环保技术装备（常州）有限公司 | Fluid flow velocity reverse disturbance purification test system and method for SCR denitration system |
-
2018
- 2018-05-07 CN CN201820676403.1U patent/CN208493802U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114113498A (en) * | 2022-01-25 | 2022-03-01 | 光大环保技术装备（常州）有限公司 | Fluid flow velocity reverse disturbance purification test system and method for SCR denitration system |
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