CN205760601U - A kind of cement plant kiln exit gas desulphurization system device - Google Patents
A kind of cement plant kiln exit gas desulphurization system device Download PDFInfo
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- CN205760601U CN205760601U CN201620489409.9U CN201620489409U CN205760601U CN 205760601 U CN205760601 U CN 205760601U CN 201620489409 U CN201620489409 U CN 201620489409U CN 205760601 U CN205760601 U CN 205760601U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The utility model discloses a kind of cement plant kiln exit gas desulphurization system device, including material pump device, rotoclone collector, slaking apparatus, evaporation steam retracting device, Calx finished bin, conveying worm, belt, bucket elevator and air conveyer flume.Material pump device one end connects dore furnace, and the other end connects rotoclone collector.The feed opening of rotoclone collector connects the charging aperture of slaking apparatus, and the steam pipeline of slaking apparatus discharge is connected with evaporation steam retracting device.The discharging opening of slaking apparatus is connected with the charging aperture of Calx finished bin.Conveying worm connects Calx finished bin and belt respectively.Bucket elevator connects belt and air conveyer flume respectively.Air conveyer flume outlet is connected with raw material feeding mouth in precalcining system.This utility model is not when affecting normal production, it is possible to stably realize SO in the kiln exit gas of cement plant2Emission reduction efficiency is not less than 50%.Structure and technique are simple simultaneously, easy to operate, are suitable for popularization and application.
Description
Technical field
This utility model relates to a kind of cement plant kiln exit gas desulphurization system device, belongs to cement plant and produces equipment technical field.
Background technology
According to the regulation of GB4915-2004 " cement industry atmosphere pollutants emission standards ", existing cement kiln and kiln are grinding integrated
SO in aiutage2The highest permission concentration of emission is 200mg/m3, key area requires less than 100mg/m3.The most effectively, warp
The reduction SO of Ji2Concentration of emission, becomes the difficult problem that many enterprises are urgently to be resolved hurrily.
It is known that the sulfur in quality coal in cement kiln systems is brought into by raw material and fuel, and under normal circumstances the sulfur in fuel produce the biggest
Part SO2The activity that can be decomposed in stove CaO catches and grabs, SO present in kiln exit gas2It is mainly derived from raw material and is prone at low temperature
Interval volatilization or the low price sulfur aoxidized out.
The desulfurization technology that at present cement plant can use is a lot, including dry desulfurization (reactant insufflation, hot raw material insufflation etc.),
Semi-dry desulphurization and wet desulphurization (ammonia process of desulfurization, double alkali method desulfurizing, limestone-gypsum method) etc., be respectively arranged with superior point.From minimizing
Investment, streamlining management and green operation angle consider, reactant and hot raw material insufflation are the most attractive.Reactant at present
Insufflation is that the Calx of outsourcing is sprayed into pre-heating system appropriate location, utilizes Calx and SO2Reaction, generates calcium sulfite,
Enter kiln system with material, reach to remove SO2Purpose.But Calx used needs outsourcing, operating cost is of a relatively high.And it is hot
Raw material insufflation is to trap SO by decomposed raw material feeding pre-heating system appropriate location2, but in raw material, CaO traps SO2
Efficiency much smaller than Calx.
Patent CN204522733 proposes a kind of new dry process rotary kiln kiln exit gas desulphurization system.Dry-process cement rotary kiln includes decomposing
Stove, conditioning Tower and raw mill, its desulphurization system includes feeding device, storage device, pulping device, conveyer device and injection dress
Put.This patent needs pulping device, including pulping tank, circulating pump group and spray gun, the Ca (OH) by 20%～30%2Serosity sprays
It is mapped to the outlet of conditioning Tower and raw mill, the SO in reduction flue gas2.Owing to Calx dissolubility in water is low, Calx must be made
Milkiness serosity, the pulping system of this patent is the uniform of guarantee concentration of slurry, need to use circulating pump and size delivery device, make
One-tenth system power consumption, heat consumption are high, and grog desulfurization operation cost is high.
Utility model content
For the shortcoming overcoming above-mentioned prior art to exist, the purpose of this utility model is exactly to combine the practical situation in cement plant, if
A kind of cement plant of meter kiln exit gas desulphurization system device.This apparatus system is simple, operation energy consumption is low, sorbent utilization is high, nothing
Great lot of water resources consumes, and desulfuration efficiency is high.The SO in the kiln exit gas of cement plant is reduced by this covering device2, it is not necessary to additionally buy
Desulfurizing agent, effectively save space and equipment investment, reduce production cost.
The technical solution adopted in the utility model is as follows: a kind of cement plant kiln exit gas desulphurization system device, wherein cement plant kiln system
System includes precalcining system, dore furnace and rotary kiln, and this desulphurization system device includes material pump device, rotoclone collector, disappears
Gasifying device, evaporation steam retracting device, Calx finished bin, conveying worm, belt, bucket elevator and air conveying are tiltedly
Groove；Material pump device one end connects dore furnace, and the other end connects rotoclone collector；The feed opening of rotoclone collector connects slaking apparatus
Charging aperture, the top cyclone cylinder outlet of the gas outlet of rotoclone collector and precalcining system is connected；Slaking apparatus discharge
Steam pipeline is connected with evaporation steam retracting device, and the discharging opening of slaking apparatus is connected with the charging aperture of Calx finished bin；Spiral shell
Rotation conveyer connects Calx finished bin and belt respectively；Bucket elevator connects belt and air conveyer flume respectively；Air is defeated
Skewed slot is sent to be connected with raw material feeding mouth in precalcining system.
In a preferred embodiment, described material pump device includes pneumatic operated valve and dilution cooling blower.
In a preferred embodiment, described slaking apparatus is 2～3 grades of dry powder digestive appartus.
In a preferred embodiment, described evaporation steam retracting device is spray water tank, and shower is arranged on tank top,
Water vapour and cold water counter current contacting.
In a preferred embodiment, the water vapour cooling backwater of described spray water tank accesses the water inlet of slaking apparatus by pipeline
Mouthful.
The utility model has the advantages that: the height that desulphurization system device of the present utility model is generated by extraction dore furnace calcining itself is lived
Property calcium oxide make and return preheater after slaked lime, as desulfurizing agent needed for flue gas desulfurization, it is achieved the Matter Transfer of desulfurizing agent.No
Need process and the outward transport expense of lime mud, save the expense of raw materials of flue gas desulphurization system.And sulfur dioxide in flue gas with
Desulfurizing agent is the contact in Pyatyi preheater in precalcining system, and the desulphurization reaction time is longer, and sorbent utilization is high.
This utility model do not affect cement producing line normally produce when, it is possible to stably realize titanium dioxide in the kiln exit gas of cement plant
Sulfur emission reduction efficiency is not less than 50%.Structure and technique are simple and convenient to operate simultaneously, and operation energy consumption is low, it is not necessary to outsourcing desulfurizing agent,
Reduce production cost, be suitable for popularization and application.
Accompanying drawing explanation
Fig. 1 is cement plant of the present utility model kiln exit gas desulfurization process figure；
Fig. 2 is cement plant of the present utility model kiln exit gas desulphurization system structural representation；
Fig. 3 is the schematic diagram that in Fig. 2, cement plant kiln tail precalcining system structure is amplified.
In figure: 1 material pump device, 2 pneumatic operated valves, 3 dilution cooling blowers, 4 rotoclone collectors, 5 slaking apparatus, 6 Calx become
Product storehouse, 7 conveying worms, 8 belts, 9 bucket elevators, 10 air conveyer flumes, 11 precalcining systems, 12 points
Solve stove, 13 rotary kilns, 14 high-temperature blowers, 15 evaporation steam retracting devices.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is described further.
As shown in Figure 2,3, a kind of cement plant kiln exit gas desulphurization system device disclosed in this utility model embodiment, wherein, existing
Some cement plants kiln system mainly includes dore furnace 12, precalcining system 11, rotary kiln 13, high-temperature blower 14 etc..This
The desulphurization system device of embodiment be provided with material pump device 1, rotoclone collector 4, slaking apparatus 5, evaporation steam retracting device 15,
Calx finished bin 6, conveying worm 7, belt 8, bucket elevator 9, air conveyer flume 10.Wherein material pump device 1
For the extraction flue gas containing highly active calcium oxide raw material from dore furnace 12, its one end connects dore furnace 12, and the other end connects
Rotoclone collector 4；The pipeline of material pump device 1 is provided with pneumatic operated valve 2 and dilution cooling blower 3, and the flue gas of extraction is through dilution cooling
Enter rotoclone collector 4 after blower fan 3 dilution cooling and carry out material collection.The feed opening of rotoclone collector 4 connects slaking apparatus 5
Charging aperture, the top cyclone cylinder outlet of the gas outlet of rotoclone collector 4 and precalcining system 11 is connected.Slaking apparatus 5
2～3 grades of dry powder digestive appartus can be used, controlled by operations such as reasonable water distributions, it is possible in the short period of time calcium oxide raw material are disappeared
Calx (calcium hydroxide) dry powder of chemical conversion puffy.The steam pipeline of slaking apparatus 5 discharge and evaporation steam retracting device
15 connect, and the cooling backwater of evaporation steam retracting device 15 also can access slaking apparatus 5 by pipeline, to recycle water resource.
Evaporation steam retracting device 15 can use spray water tank, and shower is arranged on tank top so that water vapour and cold water counter current contacting,
Quickly cooling.The discharging opening of slaking apparatus 5 is connected with the charging aperture of Calx finished bin 6.Conveying worm 7 connects ripe respectively
Calx finished bin 6 and belt 8.Bucket elevator 9 connects belt 8 and air conveyer flume 10 respectively.Air conveyer flume 10
It is connected with raw material feeding mouth in precalcining system 11.
The desulfurization work of the cement plant kiln exit gas desulphurization system device that the present embodiment provides is illustrated below in conjunction with Fig. 1, Fig. 2
Process:
A certain amount of about the 900 DEG C flue gases containing highly active calcium oxide raw material are extracted in the outlet of cement plant kiln tail dore furnace 12.By cigarette
Gas is cooled to 400 DEG C by dilution cooling blower 3 and carries out gas solid separation, by highly active calcium oxide material by rotoclone collector 4
Collection is got off, and slaking apparatus 5 entrance sent into by the material collected, and carries out digestion reaction, prepares Calx (calcium hydroxide)
Dry powder.The steam exporting out from slaking apparatus 5 enters evaporation steam retracting device 15, and water vapour cooling backwater is as digestion
Use water.Send into Calx finished bin 6 entrance from slaking apparatus 5 afterbody Calx (calcium hydroxide) dry powder out to store.
After conveying worm 7, belt 8 conveying, bucket elevator 9, warp is entered from the calcium hydroxide dry powder of slaked lime finished bin 6 blanking
Bucket elevator 9 is made a gift to someone after promoting the entrance of air conveyer flume 10, through the conveying of air conveyer flume 10, sends into preheating pre-
The raw material feeding mouth of decomposing system 11.Through cement plant kiln exit gas through the removing of desulphurization system device, SO2Emission reduction efficiency be
50～60%.
Above-described embodiment is only for clearly demonstrating this utility model example, and is not to embodiment party of the present utility model
The restriction of formula.For those of ordinary skill in the field, other not similar shape can also be made on the basis of the above description
The change of formula or variation.Here without also cannot all of embodiment be given exhaustive.And these belong to essence of the present utility model
What god was extended out obviously changes or changes among still in protection domain of the present utility model.
Claims (5)
1. a cement plant kiln exit gas desulphurization system device, wherein cement plant kiln system includes precalcining system (11), dore furnace (12) and rotary kiln (13), it is characterized in that, described desulphurization system device includes material pump device (1), rotoclone collector (4), slaking apparatus (5), evaporation steam retracting device (15), Calx finished bin (6), conveying worm (7), belt (8), bucket elevator (9) and air conveyer flume (10)；Material pump device (1) one end connects dore furnace (12), and the other end connects rotoclone collector (4)；The feed opening of rotoclone collector (4) connects the charging aperture of slaking apparatus (5), and the gas outlet of rotoclone collector (4) is connected with the top cyclone cylinder outlet of precalcining system (11)；The steam pipeline that slaking apparatus (5) discharges is connected with evaporation steam retracting device (15), and the discharging opening of slaking apparatus (5) is connected with the charging aperture of Calx finished bin (6)；Conveying worm (7) connects Calx finished bin (6) and belt (8) respectively；Bucket elevator (9) connects belt (8) and air conveyer flume (10) respectively；Air conveyer flume (10) is connected with raw material feeding mouth in precalcining system (11).
A kind of cement plant the most according to claim 1 kiln exit gas desulphurization system device, it is characterised in that: described material pump device (1) includes pneumatic operated valve (2) and dilution cooling blower (3).
A kind of cement plant the most according to claim 1 kiln exit gas desulphurization system device, it is characterised in that: described slaking apparatus (5) is 2 ~ 3 grades of dry powder digestive appartus.
A kind of cement plant the most according to claim 1 kiln exit gas desulphurization system device, it is characterised in that: described evaporation steam retracting device (15) is spray water tank, and shower is arranged on tank top, water vapour and cold water counter current contacting.
A kind of cement plant the most according to claim 4 kiln exit gas desulphurization system device, it is characterised in that: the water vapour cooling backwater of described spray water tank accesses the water inlet of slaking apparatus (5) by pipeline.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620489409.9U CN205760601U (en) | 2016-05-26 | 2016-05-26 | A kind of cement plant kiln exit gas desulphurization system device |
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| CN201620489409.9U CN205760601U (en) | 2016-05-26 | 2016-05-26 | A kind of cement plant kiln exit gas desulphurization system device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107537308A (en) * | 2017-10-24 | 2018-01-05 | 李学峰 | A kind of rotary kiln semi-dry desulphurization method and desulfurizing agent |
| CN108279248A (en) * | 2017-12-06 | 2018-07-13 | 华南理工大学 | A kind of experimental provision and its experimental method of research desulfurization product stability in rotary kiln |
| CN108686494A (en) * | 2018-06-21 | 2018-10-23 | 北京中丹科技有限公司 | With the calcium oxide in kiln exit gas to the method and its system of kiln exit gas desulfurization |
| CN110052152A (en) * | 2019-06-06 | 2019-07-26 | 天津水泥工业设计研究院有限公司 | One kind being based on cement clinker production line calcium circulation desulfurization system and sulfur removal technology |
| CN110975554A (en) * | 2018-10-03 | 2020-04-10 | 新疆宝新昌佳石灰制品有限公司 | Method for flue gas desulfurization of lime rotary kiln by using kiln tail ash |
-
2016
- 2016-05-26 CN CN201620489409.9U patent/CN205760601U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107537308A (en) * | 2017-10-24 | 2018-01-05 | 李学峰 | A kind of rotary kiln semi-dry desulphurization method and desulfurizing agent |
| CN108279248A (en) * | 2017-12-06 | 2018-07-13 | 华南理工大学 | A kind of experimental provision and its experimental method of research desulfurization product stability in rotary kiln |
| CN108686494A (en) * | 2018-06-21 | 2018-10-23 | 北京中丹科技有限公司 | With the calcium oxide in kiln exit gas to the method and its system of kiln exit gas desulfurization |
| CN110975554A (en) * | 2018-10-03 | 2020-04-10 | 新疆宝新昌佳石灰制品有限公司 | Method for flue gas desulfurization of lime rotary kiln by using kiln tail ash |
| CN110052152A (en) * | 2019-06-06 | 2019-07-26 | 天津水泥工业设计研究院有限公司 | One kind being based on cement clinker production line calcium circulation desulfurization system and sulfur removal technology |
| CN110052152B (en) * | 2019-06-06 | 2024-01-05 | 天津水泥工业设计研究院有限公司 | Calcium circulation desulfurization system and desulfurization process based on cement clinker production line |
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