CN207605533U - A kind of cement kiln tail flue gas multiple pollutant combined apparatus - Google Patents
A kind of cement kiln tail flue gas multiple pollutant combined apparatus Download PDFInfo
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- CN207605533U CN207605533U CN201721536744.0U CN201721536744U CN207605533U CN 207605533 U CN207605533 U CN 207605533U CN 201721536744 U CN201721536744 U CN 201721536744U CN 207605533 U CN207605533 U CN 207605533U
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Abstract
The utility model belongs to the technical field of cement kiln tail fume treatment, and in particular to arrives a kind of cement kiln tail flue gas multiple pollutant combined apparatus.Including eddy flow dust-precipitator, bag filter and SCR denitration reactor, deduster includes babinet and the dust collector ash hopper in the lower section of babinet is arranged, filter bag is provided in babinet, it is provided with pulse ash remover above filter bag, eddy flow dust-precipitator is connect with bag filter flue I, bag filter is connect with Benitration reactor flue II, it is provided with ammonia-spraying grid between bag filter and SCR denitration reactor, it is provided with adsorbent jet pipe in flue I, adsorbent containment case is provided with above adsorbent jet pipe.The device main route of utility model is the multi-pollutant combined treatment process that pre- dedusting-removes alkali-dedusting-denitration, can be to particle dust, the NO in cement kiln exit gasXDeng carrying out integrated improvement, have the advantages that gross investment is small, operation energy consumption is low, floor space is small, concise in technology, maintenance are small.
Description
Technical field
The utility model belongs to the technical field of cement kiln tail fume treatment, and in particular to arrives a kind of cement kiln tail cigarette
Gas multi-pollutant combined apparatus.
Background technology
Major country of the China as manufacture of cement is advised in manufacture of cement total amounts in 2016 close to 2,400,000,000 tons on the whole nation
The cement producing line of mould is more than 2300, accounts for more than half of world wide production.The nitrogen oxidation discharged in annual cement production process
Object total amount is about 2,000,000 tons, accounts for about 15% or so of national nitrogen oxides industrial discharge amount, is after electric power, vehicle exhaust
The third-largest discharged nitrous oxides source.During " 12th Five-Year Plan ", the discharge of nitrogen oxides is put into the binding indicator system for the first time.With
Further increasing of the country to air contaminant treatment dynamics, it is also further for the discharge standard of the nitrogen oxides of cement industry
Tightening.《Cement industry atmosphere pollutants emission standards》GB4915-2013 discharged nitrous oxides standard mark conditions are 400mg/m3, weight
The regional discharged nitrous oxides standard mark condition of point is 320mg/m3.The removing first choice technique of cement industry nitrogen oxides is SNCR at present
Selective non-catalytic reduction method technique, for removal efficiency between 40%~60%, fume treatment can meet the discharge of current country
Standard." 13 " period is arrived, China's building material industry transition and upgrade realizes the important stage of turnover sexual development, is to implement《In
State's manufacture 2025》, realize grand strategy phase of made in China power, and carry out China《National economy and social development
13rd five-year-plan outline》With《The General Office of the State Council surely increases the guidance for adjusting structure to increase benefit about promotion building materials industry
Opinion》(2016) No. 34 files are sent out by the Office of the State Council, implement cement industry " innovation is promoted, and is surmounted and is led " strategy, cement industry is promoted to supply
Side structure reform is given, structural adjustment, transition and upgrade is promoted to transfer to depth, cement industry is advanced to new development
Important period, it is therefore necessary to which it is up to standard to step up to implement energy-saving and emission-reduction, promotes cement green production, using engineering, leads to nitrogen oxides
Discharge standard carry out minimum discharge, and in burner hearth spray ammonia SNCR method denitrations be difficult to reach ultra-clean emissions object value.
Utility model content
Purpose of the utility model is to solve the problems in background technologies, how dirty provide a kind of cement kiln exit gas
Object combined apparatus is contaminated, it can be to particle dust, the NO in cement kiln exit gasXDeng the integrated improvement of progress, have
The advantage that gross investment is small, operation energy consumption is low, floor space is small, concise in technology, maintenance are small.
To achieve the goals above, the technical solution of the utility model is as follows：A kind of cement kiln tail flue gas multiple pollutant
Combined apparatus, including eddy flow dust-precipitator, bag filter and SCR denitration reactor, the deduster include babinet with
Dust collector ash hopper in the lower section of babinet is set, filter bag is provided in the babinet, pulse is provided with above the filter bag
Deashing device, the eddy flow dust-precipitator are connect with bag filter flue I, the bag filter and denitration reaction
The II connections of device flue, are provided with ammonia-spraying grid, the flue gas between the bag filter and SCR denitration reactor
It is provided with adsorbent jet pipe in pipeline I, adsorbent containment case is provided with above the adsorbent jet pipe.
The utility model has the following advantages compared with prior art：The device main route of utility model is that pre- dedusting-removes
The multi-pollutant combined treatment process of alkali-dedusting-denitration, can be to particle dust, the NO in cement kiln exit gasXDeng
Integrated improvement is carried out, has the advantages that gross investment is small, operation energy consumption is low, floor space is small, concise in technology, maintenance are small.
Description of the drawings
Attached drawing 1 is the structure diagram of the utility model；
1 in figure：10- eddy flow dust-precipitators；20- bag filters；21- babinets；22- dust collector ash hoppers；23- filter bags；24- arteries and veins
Rush deashing device；25- air inlet adjustment valves；26- deflectors；30-SCR Benitration reactors；31- flue gas flow equalizing devices II；32- catalyst
Reserved layer；33- catalyst layers；40- flues I；41- adsorbent jet pipes；50- flues II；51- ammonia-spraying grids；52- cigarettes
Gas current equalizer I；60- adsorbent containment casees.
Specific implementation mode
To make the structure feature to the utility model and the effect of being reached has a better understanding and awareness, to compared with
Good embodiment and attached drawing cooperation detailed description, are described as follows：
As shown in Figure 1, the utility model discloses a kind of cement kiln tail flue gas multiple pollutant combined apparatus, it is special
Sign is：Include including eddy flow dust-precipitator 10, bag filter 20 and SCR denitration reactor 30, the bag filter 20
Babinet 21 and the dust collector ash hopper 22 in the lower section of babinet 21 is set, filter bag 23, the filter are provided in the babinet 21
23 top of bag is provided with pulse ash remover 24, and the eddy flow dust-precipitator 10 is connect with 20 flue I40 of bag filter,
The deduster 20 is connect with 30 flue II50 of Benitration reactor, and the bag filter 20 is reacted with SCR denitration
It is provided with ammonia-spraying grid 51 between device 30, adsorbent jet pipe 41, adsorbent spray are provided in the flue I40
41 top of pipe is provided with adsorbent containment case 42.The device main route of the utility model is pre- dedusting-except alkali-dedusting-is de-
The multi-pollutant combined treatment process of nitre.Flue gas is after cement kiln tail waste heat boiler exports out, into eddy flow dust-precipitator 10
The pre- dedusting of flue gas is carried out, flue gas can remove 90% dust, and subsequent flue I40 and flue are entered after pre- dedusting
II50 adds an adsorbent jet pipe 41, adsorbent is constantly sprayed into flue gas in the duct, to the basic species in flue gas
Matter is effectively adsorbed, to reduce the murder by poisoning for SCR denitration denitrating catalyst；Pre- dedusting and except the flue gas after alkali enters
Bag filter 20, flue-gas temperature is between 190~200 DEG C, after the processing of bag filter 20, the dust concentration drop in flue gas
To 30mg/m3 or less (adsorbent that dust collector ash hopper 22 unloads can recycle for several times), the dust concentration in flue gas will not
Blocking is generated to subsequent SCR denitration, temperature drop is at 10 DEG C or so；Flue gas by dedusting enters SCR denitration reaction
Device 30, temperature is at 180-190 DEG C, using low temperature SCR denitration catalyst, using ammonium hydroxide as reducing agent, is carried out at denitration to flue gas
Reason effectively reduces the nitrogen oxides in flue gas into nitrogen, and nitrous oxides concentration is less than 100mg/m3, and harmless is discharged into air
In.
Preferably, the inlet end of the bag filter 20 is provided with the air inlet adjustment valve 21 of bag filter 20.
Preferably, it is provided with deflector 23 in the dust collector ash hopper 22.
Preferably, flue gas flow equalizing device I51 is provided in the flue II50, the flue gas flow equalizing device I51's
Diameter is identical as flue II50 diameters, and 30 top of SCR denitration reactor is provided with flue gas flow equalizing device II31.
Preferably, it is pre- to be disposed with catalyst in the SCR denitration reactor 30, below flue gas flow equalizing device II31
Stay layer 32 and catalyst layer 33.
Basic principles, main features, and advantages of the present invention has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description
Only the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model the utility model also have respectively
Kind changes and improvements, these changes and improvements are both fallen in claimed the scope of the utility model.The requires of the utility model
Protection domain defined by appended claims and its equivalent.
Claims (5)
1. a kind of cement kiln tail flue gas multiple pollutant combined apparatus, it is characterised in that：Including eddy flow dust-precipitator (10), cloth
Bag dust collector (20) and SCR denitration reactor (30), the bag filter (20) include babinet (21) and are arranged in babinet
(21) dust collector ash hopper (22) of lower section, the babinet (21) is interior to be provided with filter bag (23), the filter bag (23) top
It is provided with pulse ash remover (24), the eddy flow dust-precipitator (10) is connect with bag filter (20) flue I (40),
The bag filter (20) is connect with SCR denitration reactor (30) flue II (50), the bag filter
(20) it is provided with ammonia-spraying grid (51) between SCR denitration reactor (30), absorption is provided in the flue I (40)
Agent jet pipe (41), the adsorbent jet pipe (41) top are provided with adsorbent containment case (42).
2. a kind of cement kiln tail flue gas multiple pollutant combined apparatus as described in claim 1, it is characterised in that：It is described
The inlet end of bag filter (20) be provided with the air inlet adjustment valves (25) of bag filter (20).
3. a kind of cement kiln tail flue gas multiple pollutant combined apparatus as described in claim 1, it is characterised in that：It is described
Dust collector ash hopper (22) in be provided with deflector (26).
4. a kind of cement kiln tail flue gas multiple pollutant combined apparatus as described in claim 1, it is characterised in that：It is described
Flue II (50) in be provided with flue gas flow equalizing device I (52), the diameter and flue of the flue gas flow equalizing device I (52)
II (50) diameter is identical, and flue gas flow equalizing device II (31) is provided with above the SCR denitration reactor (30).
5. a kind of cement kiln tail flue gas multiple pollutant combined apparatus as described in claim 1, it is characterised in that：It is described
SCR denitration reactor (30) in, be disposed with below flue gas flow equalizing device II (31) catalyst reserve layer (32) with catalysis
Oxidant layer (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721536744.0U CN207605533U (en) | 2017-11-17 | 2017-11-17 | A kind of cement kiln tail flue gas multiple pollutant combined apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721536744.0U CN207605533U (en) | 2017-11-17 | 2017-11-17 | A kind of cement kiln tail flue gas multiple pollutant combined apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207605533U true CN207605533U (en) | 2018-07-13 |
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ID=62794440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721536744.0U Active CN207605533U (en) | 2017-11-17 | 2017-11-17 | A kind of cement kiln tail flue gas multiple pollutant combined apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207605533U (en) |
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2017
- 2017-11-17 CN CN201721536744.0U patent/CN207605533U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 056000 intersection of GuDi street and Houde Road, Matou Economic Development Zone, Jinan new district, Handan City, Hebei Province Patentee after: Hebei Weida Blue Ocean Environmental Protection Technology Co.,Ltd. Address before: 056000 intersection of GuDi street and Houde Road, Matou Economic Development Zone, Jinan new district, Handan City, Hebei Province Patentee before: HEBEI WEIDA BLUE OCEAN ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |