CN205435455U - Cement kiln flue gas desulfurization system - Google Patents
Cement kiln flue gas desulfurization system Download PDFInfo
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- CN205435455U CN205435455U CN201521092164.8U CN201521092164U CN205435455U CN 205435455 U CN205435455 U CN 205435455U CN 201521092164 U CN201521092164 U CN 201521092164U CN 205435455 U CN205435455 U CN 205435455U
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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
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Abstract
The utility model discloses a cement kiln flue gas desulfurization system, including cement kiln flue gas source and chimney, the flue gas source with the chimney is through being used for the desulfurated reactor intercommunication that spurts, the reactor that spurts intercommunication has the absorbent, the reactor that spurts spouts there is water smoke. The reactor that spurts includes cavity and lower cavity, go up the cavity with down through the necking down mouth intercommunication that spurts between the cavity, the upper portion of going up the cavity is provided with the gas outlet, the lower part of going up the cavity is provided with the circulation and advances hui kou, the lateral wall of cavity is provided with the air inlet respectively and advances hui kou down, the bottom of cavity is provided with the ash hole down, the cavity of resorption is internal to be provided with a nozzle at least, the epicoele is internal to be provided with a nozzle at least. The utility model discloses a cement kiln flue gas desulfurization system desulfurization effect is fairly obvious, and the desulfurization degree can be more than 80%. Simple structure, but greatly reduced manufacturing cost.
Description
Technical field
This utility model relates to a kind of flue gas desulphurization system, particularly relates to a kind of cement kiln flue gas desulphurization system.
Background technology
Flue gas desulfurization technique is in the existing maturation application of the industry such as thermoelectricity, iron and steel.But the flue gas desulfurization technique of maturation is not still had in cement industry.Although it is limestone dust that cement kiln burns till raw material, burn till environment and there is the characteristic such as alkalescence, high temperature, but being as cement kiln and dispose garbage by the accreditation of industry and extensive development, garbage disposed by cement kiln has become the important content of cement industry transition and upgrade and sustainable development.Owing to garbage is of a great variety, the trade waste such as spent acid, salkali waste, mud contains harmful element complicated component, and especially element sulphur is in cement kiln circulation collection effect, to cement kiln SO2Have a major impact Deng waste gas discharge, clinker quality, Coating clogging etc..Although raw mill can be to SO in flue gas when running2Pollutant emission produces inhibitory action, but, with the DeGrain of raw mill desulfurization, desulfurization degree is only about 30-50%, also can be by Influence of production, and after raw mill stops, in kiln exit gas, pollutant emission has risk of exceeding criterion.In addition country is to ammonia in flue gas escape, hydrargyrum, TOC, SO2Limiting increasingly strictly Deng discharging, the escaping of ammonia, the place that produce after cement kiln SNCR ammonia water overspray not exclusively fire, during giving up, TOC, the heavy metal etc. produced and all suffer from discharge beyond standards risk.And cement kiln the most still lacks SO2Technology and effective control device Deng acid gas removal.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of cement kiln flue gas desulphurization system, and the desulfurized effect of this system is obvious, and desulfurization degree can be more than 80%.
In order to solve above-mentioned technical problem, this utility model provides a kind of cement kiln flue gas desulphurization system, including cement kiln flue gas source and chimney, described flue gas source is connected by the reactor that spurts for desulfurization with described chimney, the described reactor that spurts is communicated with absorbent, described in spurt and be sprayed with water smoke in reactor.
The described reactor that spurts includes upper cavity and lower chamber, connected by the necking down mouth that spurts between described upper cavity and described lower chamber, the top of described upper cavity is provided with gas outlet, the bottom of described upper cavity is provided with circulation ash inlet, the sidewall of described lower chamber is respectively arranged with air inlet and ash inlet, the bottom of described lower chamber is provided with ash hole, at least provided with a nozzle in described lower chamber, at least provided with a nozzle in described upper cavity.
Nozzle in described upper cavity has multiple, and multiple described nozzles are distributed from bottom to up.
The air inlet of the described reactor that spurts and the ash inlet of the described reactor that spurts are adjacent, or, described in spurt the air inlet of reactor and the ash inlet of the described reactor that spurts shares same import.
The bottom of described lower chamber is inferior pyramidal.
The air inlet of the gas outlet connection sack cleaner of the described reactor that spurts, the air inlet of the gas outlet connection air-introduced machine of described sack cleaner, the gas outlet of described air-introduced machine connects the air inlet of described chimney.
The ash hole of described sack cleaner connects with the circulation ash inlet of the described reactor that spurts.
The ash hole of described sack cleaner is configured with spiral ash delivering machine, the ash inlet of described spiral ash delivering machine connects with the ash hole of described sack cleaner, the circulation ash inlet of the described reactor that spurts is configured with air flume, the ash hole of described air flume connects with the circulation ash inlet of the described reactor that spurts, the ash inlet of described air flume connects with the ash hole of described spiral ash delivering machine, and described air flume is configured with fluidized air blower.
The gas outlet of the air inlet connection raw mill of the described reactor that spurts, the gas outlet of the first air inlet connection boiler of power generation by waste heat of described raw mill, the air inlet of described boiler of power generation by waste heat connects described cement kiln flue gas source.
Being provided with air-introduced machine between air inlet and the gas outlet of described raw mill of the described reactor that spurts, the air inlet of described air-introduced machine connects with the gas outlet of described raw mill, and the gas outlet of described air-introduced machine connects with the air inlet of the described reactor that spurts.
It is provided with valve between gas outlet and the described air-introduced machine of described raw mill.
It is provided with valve between gas outlet and the air inlet of described sack cleaner of described raw mill.
It is provided with valve between first air inlet and the gas outlet of described boiler of power generation by waste heat of described raw mill.
First ash inlet of the ash hole connection ash silo of described boiler of power generation by waste heat, spurt described in the ash hole connection of described ash silo the ash inlet of reactor, the gas outlet of the second air inlet connection cyclone dust extractor of described raw mill, the air inlet of described cyclone dust extractor connects the gas outlet of described boiler of power generation by waste heat, and the ash hole of described cyclone dust extractor connects the second ash inlet of described ash silo.
Being provided with defeated ash pump between ash hole and first ash inlet of described ash silo of described boiler of power generation by waste heat, the ash inlet of described defeated ash pump connects the ash hole of described boiler of power generation by waste heat, and the ash hole of described defeated ash pump connects the first ash inlet of described ash silo.
The ash hole of described boiler of power generation by waste heat is configured with three-way valve.
Being provided with defeated ash pump between ash hole and the ash inlet of the described reactor that spurts of described ash silo, the ash inlet of described defeated ash pump connects the ash hole of described ash silo, the ash inlet of the reactor that spurts described in the ash hole connection of described defeated ash pump.
It is provided with valve between air inlet and the gas outlet of described boiler of power generation by waste heat of described cyclone dust extractor.
Being provided with defeated ash pump between ash hole and second ash inlet of described ash silo of described cyclone dust extractor, the ash inlet of described defeated ash pump connects the ash hole of described cyclone dust extractor, and the ash hole of described defeated ash pump connects the second ash inlet of described ash silo.
The ash hole of described cyclone dust extractor is configured with three-way valve.
Described ash silo is configured with the 3rd ash inlet.
The ash hole of described sack cleaner end is configured with valve.
The water inlet of described nozzle is connected with the outlet of water pump by many siphunculus, and the water inlet of described water pump connects with the outlet of water tank, and the water inlet of described water tank connects with water source.
Ash hole bottom described lower chamber is configured with valve.
Cement kiln flue gas desulphurization system of the present utility model compared with prior art has the advantages that.
1, the technical program is owing to have employed described flue gas source with described chimney by the technological means connected for the reactor that spurts of desulfurization, so, desulfurized effect is fairly obvious, and desulfurization degree can be more than 80%.
2, the technical program reactor that spurts described in have employed includes upper cavity and lower chamber, connected by the necking down mouth that spurts between described upper cavity and described lower chamber, the top of described upper cavity is provided with gas outlet, the bottom of described upper cavity is provided with circulation ash inlet, the sidewall of described lower chamber is respectively arranged with air inlet and ash inlet, the bottom of described lower chamber is provided with ash hole, at least provided with a nozzle in described lower chamber, at least provided with the technological means of a nozzle in described upper cavity, so, not only desulfurized effect is fairly obvious, and, simple in construction, manufacturing cost can be substantially reduced.
3, the technical program has multiple owing to have employed the nozzle in described upper cavity, the technological means that multiple described nozzles are distributed from bottom to up, so, can further improve desulfurization degree.
4, spurt described in the have employed ash inlet of the air inlet of reactor and the described reactor that spurts of the technical program is adjacent, or, the air inlet of the described reactor that spurts and the ash inlet of the described reactor that spurts share the technological means of same import, so, it is not only advantageous to cement kiln flue gas be mutually mixed with for absorbent, also help cement kiln flue gas and spray to upper cavity from lower chamber through the necking down mouth that spurts together with for absorbent, accelerate the speed of desulfurization.
5, the technical program is inferior pyramidal technological means owing to have employed the bottom of described lower chamber, so, be conducive to discharging the absorbent lost efficacy.
6, the technical program spurt described in have employed reactor gas outlet connection sack cleaner air inlet, the air inlet of the gas outlet connection air-introduced machine of described sack cleaner, the gas outlet of described air-introduced machine connects the technological means of the air inlet of described chimney, so, not only can be greatly reduced the sulfur content in flue gas, moreover, it is also possible to other pollutant being greatly reduced in flue gas and impurity.
7, the technological means that the circulation ash inlet of the technical program ash hole with the described reactor that spurts owing to have employed described sack cleaner connects, so, can return to spurt in reactor by absorbent not sufficiently reactive in sack cleaner, be conducive to saving the usage amount of absorbent.
8, the technical program is configured with spiral ash delivering machine due to the ash hole that have employed described sack cleaner, the ash inlet of described spiral ash delivering machine connects with the ash hole of described sack cleaner, the circulation ash inlet of the described reactor that spurts is configured with air flume, the ash hole of described air flume connects with the circulation ash inlet of the described reactor that spurts, the ash inlet of described air flume connects with the ash hole of described spiral ash delivering machine, and described air flume is configured with fluidized air blower.
9, the technical program spurt described in have employed reactor air inlet connection raw mill gas outlet, the gas outlet of the first air inlet connection boiler of power generation by waste heat of described raw mill, the air inlet of described boiler of power generation by waste heat connects the technological means in described cement kiln flue gas source, so, available cement kiln flue gas generating, also by the preliminary desulfurization of raw mill, it is greatly reduced the burden of reactor desulfurization of spurting.
10, the technical program spurt described in have employed reactor air inlet and the gas outlet of described raw mill between be provided with air-introduced machine, the air inlet of described air-introduced machine connects with the gas outlet of described raw mill, the technological means that the gas outlet of described air-introduced machine connects with the air inlet of the described reactor that spurts, so, be conducive to introducing the flue gas flowing through raw mill spurting in reactor.
11, the technical program arranges valvular technological means owing to have employed between the gas outlet of described raw mill and described air-introduced machine, so, it is not only advantageous to the maintenance of equipment, is also beneficial to control the flow direction of flue gas.
12, the technical program arranges valvular technological means owing to have employed between the gas outlet of described raw mill and the air inlet of described sack cleaner, so, it is not only advantageous to the maintenance of equipment, is also beneficial to control the flow direction of flue gas.
13, the technical program arranges valvular technological means owing to have employed between the first air inlet of described raw mill and the gas outlet of described boiler of power generation by waste heat, so, it is not only advantageous to the maintenance of equipment, is also beneficial to control the flow direction of flue gas.
14, the technical program connects the first ash inlet of ash silo due to the ash hole that have employed described boiler of power generation by waste heat, spurt described in the ash hole connection of described ash silo the ash inlet of reactor, the gas outlet of the second air inlet connection cyclone dust extractor of described raw mill, the air inlet of described cyclone dust extractor connects the gas outlet of described boiler of power generation by waste heat, the ash hole of described cyclone dust extractor connects the technological means of the second ash inlet of described ash silo, so, can be before desulfurization, first cement kiln flue gas is carried out gas solid separation, so, be conducive to being greatly saved the consumption of water in sweetening process, it is also beneficial to improve desulfurization degree, isolated flue dust can also be used as absorbent.
15, the technical program is provided with defeated ash pump owing to have employed between the ash hole of described boiler of power generation by waste heat and the first ash inlet of described ash silo, the ash inlet of described defeated ash pump connects the ash hole of described boiler of power generation by waste heat, the ash hole of described defeated ash pump connects the technological means of the first ash inlet of described ash silo, so, be conducive to being transported to ash silo flue dust from boiler of power generation by waste heat.
16, the technical program is configured with the technological means of three-way valve due to the ash hole that have employed described boiler of power generation by waste heat, so, can the most easily the flue dust in boiler of power generation by waste heat be discharged.
17, the technical program is provided with defeated ash pump owing to have employed between the ash inlet of the ash hole of described ash silo and the described reactor that spurts, the ash inlet of described defeated ash pump connects the ash hole of described ash silo, spurt described in the ash hole connection of described defeated ash pump the technological means of ash inlet of reactor, so, be conducive to being transported to spurt reactor from ash silo by flue dust.
18, the technical program arranges valvular technological means owing to have employed between the air inlet of described cyclone dust extractor and the gas outlet of described boiler of power generation by waste heat, so, it is not only advantageous to the maintenance of equipment, is also beneficial to control the flow direction of flue gas.
19, the technical program is provided with defeated ash pump owing to have employed between the ash hole of described cyclone dust extractor and the second ash inlet of described ash silo, the ash inlet of described defeated ash pump connects the ash hole of described cyclone dust extractor, the ash hole of described defeated ash pump connects the technological means of the second ash inlet of described ash silo, so, be conducive to being transported to ash silo flue dust from cyclone dust extractor.
20, the technical program is configured with the technological means of three-way valve due to the ash hole that have employed described cyclone dust extractor, so, can the most easily the flue dust in cyclone dust extractor be discharged.
21, the technical program is configured with the technological means of the 3rd ash inlet owing to have employed described ash silo, so, the ash other can originated, such as: calcium oxide, calcium carbonate etc., it is transported in ash silo as absorbent, in case reactor desulfurization of spurting uses.
22, the technical program is owing to have employed the ash hole valvular technological means of configuration of described sack cleaner end, so, be conducive to the absorbent that will lose efficacy to discharge.
23, the technical program connects with the outlet of water pump owing to the water inlet that have employed described nozzle passes through many siphunculus, the water inlet of described water pump connects with the outlet of water tank, the technological means that the water inlet of described water tank connects with water source, so, be conducive to forming water water smoke to spray into and spurt in reactor, be greatly improved the speed of desulphurization reaction.
24, the technical program configures valvular technological means owing to have employed the ash hole bottom described lower chamber, so, according to the practical situation of desulfurization, the absorbent lost efficacy can be discharged.
Accompanying drawing explanation
With detailed description of the invention, cement kiln flue gas desulphurization system of the present utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of this utility model cement kiln flue gas desulphurization system.
Fig. 2 is the structural representation of reactor of spurting in Fig. 1.
Description of reference numerals is as follows.
1 ~ cement kiln flue gas source；
2 ~ chimney；
3 ~ spurt reactor；
3-1 ~ upper cavity；
3-2 ~ lower chamber；
3-3 ~ spurt necking down mouth；
3-4 ~ air inlet；
3-5 ~ ash inlet；
3-6 ~ nozzle；
3-7 ~ gas outlet；
3-8 ~ ash hole；
3-9 ~ circulation ash inlet；
4 ~ water tank；
5 ~ water pump；
6 ~ water source；
7 ~ ash silo；
8 ~ defeated ash pump；
9 ~ ash source；
10 ~ sack cleaner；
11 ~ air-introduced machine；
12 ~ raw mill；
13 ~ valve；
14 ~ valve；
15 ~ valve；
16 ~ valve；
17 ~ boiler of power generation by waste heat；
18 ~ defeated ash pump；
19 ~ cyclone dust extractor；
20 ~ three-way valve；
21 ~ three-way valve；
22 ~ defeated ash pump；
23 ~ air-introduced machine；
24 ~ air flume；
25 ~ fluidized air blower；
26 ~ spiral ash delivering machine；
27 ~ valve；
28 ~ valve；
29 ~ many siphunculus.
Detailed description of the invention
As shown in Figure 1 to Figure 2, present embodiments provide for a kind of cement kiln flue gas desulphurization system, including cement kiln flue gas source 1 and chimney 2, described flue gas source 1 is connected by the reactor 3 that spurts for desulfurization with described chimney 2, the described reactor that spurts (3) is communicated with absorbent, described in spurt and be sprayed with water smoke in reactor.
Present embodiment is owing to have employed described flue gas source with described chimney by the technological means connected for the reactor that spurts of desulfurization, and absorbent mixes with flue gas and can realize strongly mixing, so, desulfurized effect is fairly obvious, and desulfurization degree can be more than 80%.
The first step as present embodiment is improved, as shown in Figure 2, the described reactor 3 that spurts includes upper cavity 3-1 and lower chamber 3-2, connected by the necking down mouth 3-3 that spurts between described upper cavity 3-1 and described lower chamber 3-2, the top of described upper cavity 3-1 is provided with gas outlet 3-7, the bottom of described upper cavity 3-1 is provided with circulation ash inlet 3-9, the sidewall of described lower chamber 3-2 is respectively arranged with air inlet 3-4 and ash inlet 3-5, the bottom of described lower chamber 3-2 is provided with ash hole 3-8, at least provided with a nozzle 3-6 in described lower chamber 3-2, at least provided with a nozzle 3-6 in described upper cavity 3-1.
The present embodiment reactor that spurts described in have employed includes upper cavity and lower chamber, connected by the necking down mouth that spurts between described upper cavity and described lower chamber, the top of described upper cavity is provided with gas outlet, the bottom of described upper cavity is provided with circulation ash inlet, the sidewall of described lower chamber is respectively arranged with air inlet and ash inlet, the bottom of described lower chamber is provided with ash hole, at least provided with a nozzle in described lower chamber, at least provided with the technological means of a nozzle in described upper cavity, so, not only desulfurized effect is fairly obvious, and, simple in construction, manufacturing cost can be substantially reduced.
Second step as present embodiment improves, and as shown in Figure 1 to Figure 2, the nozzle 3-6 in described upper cavity 3-1 has multiple, and multiple described nozzle 3-6 are distributed from bottom to up.
Present embodiment has multiple owing to have employed the nozzle in described upper cavity, the technological means that multiple described nozzles are distributed from bottom to up, so, can further improve desulfurization degree.
The 3rd step as present embodiment is improved, as shown in Figure 1 to Figure 2, the air inlet 3-4 of the described reactor 3 that spurts and the ash inlet 3-5 of the described reactor 3 that spurts is adjacent, certainly, can also be, described in the air inlet 3-4 of the reactor 3 and ash inlet 3-5 of the described reactor 3 that spurts that spurts share same import.
Spurt described in the have employed ash inlet of the air inlet of reactor and the described reactor that spurts of present embodiment is adjacent, or, the air inlet of the described reactor that spurts and the ash inlet of the described reactor that spurts share the technological means of same import, so, it is not only advantageous to cement kiln flue gas be mutually mixed with for absorbent, also help cement kiln flue gas and spray to upper cavity from lower chamber through the necking down mouth that spurts together with for absorbent, accelerate the speed of desulfurization.
The 4th step as present embodiment is improved, and as shown in Figure 1 to Figure 2, the bottom of described lower chamber 3-2 is inferior pyramidal.
Present embodiment is inferior pyramidal technological means owing to have employed the bottom of described lower chamber, so, be conducive to discharging the absorbent lost efficacy.
The 5th step as present embodiment is improved, as shown in Figure 1 to Figure 2, the air inlet of the gas outlet 3-7 connection sack cleaner 10 of the described reactor 3 that spurts, the air inlet of the gas outlet connection air-introduced machine 11 of described sack cleaner 10, the gas outlet of described air-introduced machine 11 connects the air inlet of described chimney 2.
Present embodiment spurt described in have employed reactor gas outlet connection sack cleaner air inlet, the air inlet of the gas outlet connection air-introduced machine of described sack cleaner, the gas outlet of described air-introduced machine connects the technological means of the air inlet of described chimney, so, not only can be greatly reduced the sulfur content in flue gas, moreover, it is also possible to other pollutant being greatly reduced in flue gas and impurity.
The 6th step as present embodiment is improved, and as shown in Figure 1 to Figure 2, the ash hole of described sack cleaner 10 connects with the circulation ash inlet 3-9 of the described reactor 3 that spurts.
The technological means that the circulation ash inlet of present embodiment ash hole with the described reactor that spurts owing to have employed described sack cleaner connects, so, can return to spurt in reactor by absorbent not sufficiently reactive in sack cleaner, be conducive to saving the usage amount of absorbent.
The 7th step as present embodiment is improved, as shown in Figure 1 to Figure 2, the ash hole of described sack cleaner 10 is configured with spiral ash delivering machine 26, the ash inlet of described spiral ash delivering machine 26 connects with the ash hole of described sack cleaner 10, the circulation ash inlet 3-9 of the described reactor 3 that spurts is configured with air flume 24, the ash hole of described air flume 24 connects with the circulation ash inlet 3-9 of the described reactor 3 that spurts, the ash inlet of described air flume 24 connects with the ash hole of described spiral ash delivering machine 26, and described air flume 24 is configured with fluidized air blower 25.
Present embodiment is configured with spiral ash delivering machine due to the ash hole that have employed described sack cleaner, the ash inlet of described spiral ash delivering machine connects with the ash hole of described sack cleaner, the circulation ash inlet of the described reactor that spurts is configured with air flume, the ash hole of described air flume connects with the circulation ash inlet of the described reactor that spurts, the ash inlet of described air flume connects with the ash hole of described spiral ash delivering machine, and described air flume is configured with fluidized air blower.
The 8th step as present embodiment is improved, as shown in Figure 1 to Figure 2, the gas outlet of the air inlet 3-4 connection raw mill 12 of the described reactor 3 that spurts, the gas outlet of the first air inlet connection boiler of power generation by waste heat 17 of described raw mill 12, the air inlet of described boiler of power generation by waste heat 17 connects described cement kiln flue gas source 1.
Present embodiment spurt described in have employed reactor air inlet connection raw mill gas outlet, the gas outlet of the first air inlet connection boiler of power generation by waste heat of described raw mill, the air inlet of described boiler of power generation by waste heat connects the technological means in described cement kiln flue gas source, so, available cement kiln flue gas generating, also by the preliminary desulfurization of raw mill, it is greatly reduced the burden of reactor desulfurization of spurting.
The 9th step as present embodiment is improved, as shown in Figure 1 to Figure 2, it is provided with air-introduced machine 23 between air inlet 3-4 and the gas outlet of described raw mill 12 of the described reactor 3 that spurts, the air inlet of described air-introduced machine 23 connects with the gas outlet of described raw mill 12, and the gas outlet of described air-introduced machine 23 connects with the air inlet 3-4 of the described reactor 3 that spurts.
Present embodiment spurt described in have employed reactor air inlet and the gas outlet of described raw mill between be provided with air-introduced machine, the air inlet of described air-introduced machine connects with the gas outlet of described raw mill, the technological means that the gas outlet of described air-introduced machine connects with the air inlet of the described reactor that spurts, so, be conducive to introducing the flue gas flowing through raw mill spurting in reactor.
The tenth step as present embodiment is improved, as it is shown in figure 1, be provided with valve 14 between the gas outlet of described raw mill 12 and described air-introduced machine 23.
Present embodiment arranges valvular technological means owing to have employed between the gas outlet of described raw mill and described air-introduced machine, so, it is not only advantageous to the maintenance of equipment, is also beneficial to control the flow direction of flue gas.
The 11st step as present embodiment is improved, as it is shown in figure 1, be provided with valve 13 between the air inlet of the gas outlet of described raw mill 12 and described sack cleaner 10.
Present embodiment arranges valvular technological means owing to have employed between the gas outlet of described raw mill and the air inlet of described sack cleaner, so, it is not only advantageous to the maintenance of equipment, is also beneficial to control the flow direction of flue gas.
The 12nd step as present embodiment is improved, as it is shown in figure 1, be provided with valve 15 between the first air inlet of described raw mill 12 and the gas outlet of described boiler of power generation by waste heat 17.
Present embodiment arranges valvular technological means owing to have employed between the first air inlet of described raw mill and the gas outlet of described boiler of power generation by waste heat, so, it is not only advantageous to the maintenance of equipment, is also beneficial to control the flow direction of flue gas.
The 13rd step as present embodiment is improved, as shown in Figure 1, first ash inlet of the ash hole connection ash silo 7 of described boiler of power generation by waste heat 17, spurt described in the ash hole connection of described ash silo 7 the ash inlet 3-5 of reactor 3, the gas outlet of the second air inlet connection cyclone dust extractor 19 of described raw mill 12, the air inlet of described cyclone dust extractor 19 connects the gas outlet of described boiler of power generation by waste heat 17, and the ash hole of described cyclone dust extractor 19 connects the second ash inlet of described ash silo 7.
Present embodiment connects the first ash inlet of ash silo due to the ash hole that have employed described boiler of power generation by waste heat, spurt described in the ash hole connection of described ash silo the ash inlet of reactor, the gas outlet of the second air inlet connection cyclone dust extractor of described raw mill, the air inlet of described cyclone dust extractor connects the gas outlet of described boiler of power generation by waste heat, the ash hole of described cyclone dust extractor connects the technological means of the second ash inlet of described ash silo, so, can be before desulfurization, first cement kiln flue gas is carried out gas solid separation, so, be conducive to being greatly saved the consumption of water in sweetening process, it is also beneficial to improve desulfurization degree, isolated flue dust can also be used as absorbent.
The 14th step as present embodiment is improved, as shown in Figure 1, defeated ash pump 18 it is provided with between ash hole and first ash inlet of described ash silo 7 of described boiler of power generation by waste heat 17, the ash inlet of described defeated ash pump 18 connects the ash hole of described boiler of power generation by waste heat 17, and the ash hole of described defeated ash pump 18 connects the first ash inlet of described ash silo 7.
Present embodiment is provided with defeated ash pump owing to have employed between the ash hole of described boiler of power generation by waste heat and the first ash inlet of described ash silo, the ash inlet of described defeated ash pump connects the ash hole of described boiler of power generation by waste heat, the ash hole of described defeated ash pump connects the technological means of the first ash inlet of described ash silo, so, be conducive to being transported to ash silo flue dust from boiler of power generation by waste heat.
The 15th step as present embodiment is improved, as it is shown in figure 1, the ash hole of described boiler of power generation by waste heat 17 is configured with three-way valve 21.
Present embodiment is configured with the technological means of three-way valve due to the ash hole that have employed described boiler of power generation by waste heat, so, can the most easily the flue dust in boiler of power generation by waste heat be discharged.
The 16th step as present embodiment is improved, as shown in Figure 1 to Figure 2, defeated ash pump 8 it is provided with between ash hole and the ash inlet 3-5 of the described reactor 3 that spurts of described ash silo 7, the ash inlet of described defeated ash pump 8 connects the ash hole of described ash silo 7, the ash inlet 3-5 of the reactor 3 that spurts described in the ash hole connection of described defeated ash pump 8.
Present embodiment is provided with defeated ash pump owing to have employed between the ash inlet of the ash hole of described ash silo and the described reactor that spurts, the ash inlet of described defeated ash pump connects the ash hole of described ash silo, spurt described in the ash hole connection of described defeated ash pump the technological means of ash inlet of reactor, so, be conducive to being transported to spurt reactor from ash silo by flue dust.
The 17th step as present embodiment is improved, as it is shown in figure 1, be provided with valve 16 between the gas outlet of the air inlet of described cyclone dust extractor 19 and described boiler of power generation by waste heat 17.
Present embodiment arranges valvular technological means owing to have employed between the air inlet of described cyclone dust extractor and the gas outlet of described boiler of power generation by waste heat, so, it is not only advantageous to the maintenance of equipment, is also beneficial to control the flow direction of flue gas.
The 18th step as present embodiment is improved, as shown in Figure 1, defeated ash pump 22 it is provided with between ash hole and second ash inlet of described ash silo 7 of described cyclone dust extractor 19, the ash inlet of described defeated ash pump 22 connects the ash hole of described cyclone dust extractor 19, and the ash hole of described defeated ash pump 22 connects the second ash inlet of described ash silo 7.
Present embodiment is provided with defeated ash pump owing to have employed between the ash hole of described cyclone dust extractor and the second ash inlet of described ash silo, the ash inlet of described defeated ash pump connects the ash hole of described cyclone dust extractor, the ash hole of described defeated ash pump connects the technological means of the second ash inlet of described ash silo, so, be conducive to being transported to ash silo flue dust from cyclone dust extractor.
The 19th step as present embodiment is improved, as it is shown in figure 1, the ash hole of described cyclone dust extractor 19 is configured with three-way valve 21.
Present embodiment is configured with the technological means of three-way valve due to the ash hole that have employed described cyclone dust extractor, so, can the most easily the flue dust in cyclone dust extractor be discharged.
The 20th step as present embodiment is improved, as it is shown in figure 1, described ash silo 7 is configured with the 3rd ash inlet.
Present embodiment is configured with the technological means of the 3rd ash inlet owing to have employed described ash silo, so, the ash other can originated, such as: calcium oxide, calcium carbonate etc., it is transported in ash silo as absorbent, in case reactor desulfurization of spurting makes.
The 21st step as present embodiment is improved, as it is shown in figure 1, the ash hole of described sack cleaner 10 end is configured with valve 27.
Present embodiment configures valvular technological means due to the ash hole that have employed described sack cleaner end, so, be conducive to discharging the absorbent lost efficacy.
The 22nd step as present embodiment is improved, as it is shown in figure 1, the water inlet of described nozzle 3-6 is connected with the outlet of water pump 5 by many siphunculus 29, the water inlet of described water pump 5 connects with the outlet of water tank 4, and the water inlet of described water tank 4 connects with water source 6.
Present embodiment is connected with the outlet of water pump by many siphunculus due to the water inlet that have employed described nozzle, the water inlet of described water pump connects with the outlet of water tank, the technological means that the water inlet of described water tank connects with water source, so, be conducive to forming water water smoke to spray into and spurt in reactor, be greatly improved the speed of desulphurization reaction.
The 23rd step as present embodiment is improved, as it is shown in figure 1, the ash hole 3-8 bottom described lower chamber 3-2 is configured with valve 28.
Present embodiment configures valvular technological means owing to have employed the ash hole bottom described lower chamber, so, according to the practical situation of desulfurization, the absorbent lost efficacy can be discharged.
Claims (9)
1. a cement kiln flue gas desulphurization system, including cement kiln flue gas source (1) and chimney (2), it is characterized in that: described flue gas source (1) is connected by the reactor that spurts (3) for desulfurization with described chimney (2), the described reactor that spurts (3) is communicated with absorbent, described in spurt and be sprayed with water smoke in reactor；
The described reactor that spurts (3) includes upper cavity (3-1) and lower chamber (3-2), connected by the necking down mouth (3-3) that spurts between described upper cavity (3-1) and described lower chamber (3-2), the top of described upper cavity (3-1) is provided with gas outlet (3-7), the bottom of described upper cavity (3-1) is provided with circulation ash inlet (3-9), the sidewall of described lower chamber (3-2) is respectively arranged with air inlet (3-4) and ash inlet (3-5), the bottom of described lower chamber (3-2) is provided with ash hole (3-8), at least provided with a nozzle (3-6) in described lower chamber (3-2), at least provided with a nozzle (3-6) in described upper cavity (3-1).
Cement kiln flue gas desulphurization system the most according to claim 1, it is characterized in that: described in spurt reactor (3) gas outlet (3-7) connection sack cleaner (10) air inlet, the air inlet of gas outlet connection air-introduced machine (11) of described sack cleaner (10), the gas outlet of described air-introduced machine (11) connects the air inlet of described chimney (2).
Cement kiln flue gas desulphurization system the most according to claim 2, it is characterised in that: the ash hole of described sack cleaner (10) connects with the circulation ash inlet (3-9) of the described reactor that spurts (3).
Cement kiln flue gas desulphurization system the most according to claim 3, it is characterized in that: the ash hole of described sack cleaner (10) is configured with spiral ash delivering machine (26), the ash inlet of described spiral ash delivering machine (26) connects with the ash hole of described sack cleaner (10), the circulation ash inlet (3-9) of the described reactor that spurts (3) is configured with air flume (24), the ash hole of described air flume (24) connects with the circulation ash inlet (3-9) of the described reactor that spurts (3), the ash inlet of described air flume (24) connects with the ash hole of described spiral ash delivering machine (26), described air flume (24) is configured with fluidized air blower (25).
Cement kiln flue gas desulphurization system the most according to claim 2, it is characterized in that: described in spurt reactor (3) air inlet (3-4) connection raw mill (12) gas outlet, the gas outlet of the first air inlet connection boiler of power generation by waste heat (17) of described raw mill (12), the air inlet of described boiler of power generation by waste heat (17) connects described cement kiln flue gas source (1).
Cement kiln flue gas desulphurization system the most according to claim 5, it is characterized in that: the first ash inlet of ash hole connection ash silo (7) of described boiler of power generation by waste heat (17), the ash inlet (3-5) of reactor (3) of spurting described in the ash hole connection of described ash silo (7).
Cement kiln flue gas desulphurization system the most according to claim 6, it is characterized in that: between ash hole and first ash inlet of described ash silo (7) of described boiler of power generation by waste heat (17), be provided with defeated ash pump (18), the ash inlet of described defeated ash pump (18) connects the ash hole of described boiler of power generation by waste heat (17), the ash hole of described defeated ash pump (18) connects the first ash inlet of described ash silo (7), the gas outlet of the second air inlet connection cyclone dust extractor (19) of described raw mill (12), the air inlet of described cyclone dust extractor (19) connects the gas outlet of described boiler of power generation by waste heat (17), the ash hole of described cyclone dust extractor (19) connects the second ash inlet of described ash silo (7).
Cement kiln flue gas desulphurization system the most according to claim 6, it is characterized in that: between ash hole and the ash inlet (3-5) of the described reactor that spurts (3) of described ash silo (7), be provided with defeated ash pump (8), the ash inlet of described defeated ash pump (8) connects the ash hole of described ash silo (7), the ash inlet (3-5) of reactor (3) of spurting described in the ash hole connection of described defeated ash pump (8).
Cement kiln flue gas desulphurization system the most according to claim 1, it is characterized in that: the water inlet of described nozzle (3-6) is connected with the outlet of water pump (5) by many siphunculus (29), the water inlet of described water pump (5) connects with the outlet of water tank (4), and the water inlet of described water tank (4) connects with water source (6).
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| CN201521092164.8U CN205435455U (en) | 2015-12-25 | 2015-12-25 | Cement kiln flue gas desulfurization system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105413437A (en) * | 2015-12-25 | 2016-03-23 | 北京建筑材料科学研究总院有限公司 | Flue gas desulfurization system for cement kiln |
| CN108525508A (en) * | 2018-05-11 | 2018-09-14 | 中国建筑材料科学研究总院有限公司 | The method for carrying out flue gas desulfurization using cement slurry |
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2015
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105413437A (en) * | 2015-12-25 | 2016-03-23 | 北京建筑材料科学研究总院有限公司 | Flue gas desulfurization system for cement kiln |
| CN108525508A (en) * | 2018-05-11 | 2018-09-14 | 中国建筑材料科学研究总院有限公司 | The method for carrying out flue gas desulfurization using cement slurry |
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