CN205425856U - Cement kiln bypass joint fractional combustion kiln tail smoke treatment device that leaks informaton - Google Patents
Cement kiln bypass joint fractional combustion kiln tail smoke treatment device that leaks informaton Download PDFInfo
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- CN205425856U CN205425856U CN201521058886.1U CN201521058886U CN205425856U CN 205425856 U CN205425856 U CN 205425856U CN 201521058886 U CN201521058886 U CN 201521058886U CN 205425856 U CN205425856 U CN 205425856U
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Abstract
The utility model discloses a cement kiln bypass joint fractional combustion kiln tail smoke treatment device that leaks informaton, kiln tail smoke -box, dore furnace, whirlwind pre -heater, two cyclone, layering cooling desulfurizing tower, bag filter including the rotary kiln, the kiln tail smoke -box of rotary kiln is connected with the dore furnace, the kiln tail smoke -box of rotary kiln is connected through bypass flue gas pipeline and two cyclone, the unloading of whirlwind pre -heater is managed hot raw material and is divided into two, partly former way entering kiln tail smoke -box of pressing, and another part gets into the bypass flue gas of following kiln tail smoke -box and taking out, two cyclone are connected with layering cooling desulfurizing tower top, layering cooling desulfurizing tower bottom is connected with the bag filter, and its middle part is connected with the dore furnace through the reduction tuber pipe, the dore furnace is from last to establishing after -flame district, strong reducing zone, weak reducing zone down respectively. The utility model discloses aqueous ammonia slip can reach 80%, reaches zero and spouts the effect that nitrogen falls in ammonia, alleviates manufacturing cost and ambient pressure.
Description
Technical field
This utility model relates to manufacture of cement and field of garbage disposal worked in coordination with by cement kiln, especially relates to a kind of employing bypass combined and staged burning kiln exit gas processing means in cement production process.
Background technology
Along with the development of cement industry, being becoming tight former, fuel source day, increasing cement plant needs to use (the K Han volatile ingredients2O、Na2O、SO3, Cl-) low-grade former, fuel calcination of cement clinker；Meanwhile, increasing cement plant uses alternative fuel and utilizes kiln system to process garbage, and in alternative fuel, garbage, institute is chloride, sulfur is the most higher.
Utilizing new type nonaqueous cement rotary kiln to process municipal refuse, be one of the mode of burning disposal rubbish, as cement production enterprise, the disposal of garbage must be premised on not affecting manufacture of cement.From the perspective of controlling of production process, the harmful element (sulfur, chlorine and alkali metal) of garbage belongs to volatile component, fully it is suspended in hot gas due to raw material, when gas temperature reaches the melting temperature of alkali, sulfur, chlorine, they are just condensate in raw meal powder particle surface, return to again in kiln with raw material, again volatilize thermal zone, volatile component like this between kiln and preheater through repeatedly volatilizing, condensing, raw material in preheater, kiln are contained harmful ingredients significantly improve, from the point of view of nsp kiln test result, typically enter K in the hot raw material of kiln2O content is 2～4 times of raw material, Na2O is 1.5～2 times, Cl-is 20～30 times and SO3Mainly affected relatively big, it can thus be seen that volatile component circulates the most serious in preheater by fuel.The circulation collection of volatile component often can occur the position skinning such as formation rings in a kiln or kiln tail smoke-box, cyclone cylinder cone, will be unable to normally produce, also have a certain impact Air Pollutant Emission time serious.
Bypass system be solve excess potassium in former, fuel, sodium, chlorine discharge the effective measures of system, it is ensured that system stable operation and product quality.But, current bypass technology, use the mode mixed with cold wind of leaking informaton to be quenched more, then cyclone separator or expansion chamber carry out dust and gas separation, and the waste gas of about 200 DEG C enters kiln tail afterheat generating system, though there being partial heat to reclaim, but still waste substantial amounts of heat energy, and the operation of waste heat boiler can be impacted by a large amount of dusts in flue gas, do not consider the process of the pollutant such as nitrogen oxides of exhaust gas and sulfur dioxide yet, the most really alleviate the pressure of firing system fume treatment.
Additionally, the denitration technology of domestic cement clinker production line is still based on SNCR SNCR method, and grading combustion technology is in the starting stage, denitration rate is less than 25%, denitration effect is the most unstable, easily causes the Coating clogging of pre-heating system, it is impossible to adapt to various operating mode.Strict to coal quality requirements, it is only applicable to the bituminous coal that volatile matter is high, to using the anthracite cement production enterprise as fuel, then enters suitable reburning fuel outside needing, the staged combustion device of a lot of enterprises is in idle state, it is impossible in really applying to produce.And SNCR ammonia method denitration relies on reducing agent ammonia or carbamide to carry out the removing of nitrogen oxides, consume a large amount of reducing agent.The overall situation no matter reduced discharging from national energy-saving, or from saving manufacture of cement cost, improve grading combustion technology, reduce ammonia (or carbamide) discharge rate, all seem the most urgent.
In view of above-mentioned reason, existing bypass technology and grading combustion technology all have much room for improvement.
Utility model content
The technical problems to be solved in the utility model is to overcome deficiency of the prior art, a kind of combined and staged burning of cement kiln bypass is provided to carry out the device of kiln exit gas process, bypass technology is combined with grading combustion technology, ammonia reduction rate is up to 80%, even can reach the effect of zero spray ammonia fall nitrogen, in minimizing rotary kiln, the volatilization circulating load of harmful components, improves clinker quality, promote calcination equipment running rate, alleviate production cost and ambient pressure.
This utility model, in order to solve above-mentioned technical problem, adopts the following technical scheme that:
A kind of cement kiln bypass combined and staged burning kiln exit gas processing means, including: the kiln tail smoke-box of rotary kiln, dore furnace, cyclone preheater, cyclone separator, layering cooling desulfurizing tower, bag filter；The kiln tail smoke-box of described rotary kiln is connected with dore furnace；The kiln tail smoke-box of rotary kiln is connected with cyclone separator by bypass flue；The hot raw material of the tremie pipe of cyclone preheater are divided into two, and a part enters the kiln tail smoke-box of rotary kiln by former road, and another part enters the bypass flue gas extracted out from kiln tail smoke-box；Cyclone separator is connected with layering cooling desulfurizing tower top；It is connected with bag filter bottom layering cooling desulfurizing tower；It is connected with dore furnace by reduction airduct in the middle part of layering cooling desulfurizing tower；Described dore furnace sets burning-out zone, strong reducing zone, weak reducing zone the most respectively.
As the preferred technical scheme of this utility model, described dore furnace lower prop is connected with tertiary-air pipe, and described dore furnace column body is connected with fire upcast ventilation pipe, is connected with reduction airduct in the middle part of described dore furnace, and the reduction airduct other end is connected with layering cooling desulfurizing tower；Described reduction airduct is provided with Electric air valve and centrifugal blower；Described tertiary-air pipe is provided with tertiary air valve；Described fire upcast ventilation pipe is provided with air-valve on fire.
As the preferred technical scheme of this utility model, described bypass flue is provided with electric bypass vent valve.
As the preferred technical scheme of this utility model, bottom described layering cooling desulfurizing tower, it is provided with two cooling blowers；It is provided with two-layer water spray layer in described layering cooling desulfurizing tower；The dry ash that described layering cooling desulfurizing tower is discharged, falls into the 3rd FU conveyer through a FU conveyer and double-deck air locking valve with counter weight；The dust that described bag filter is collected, falls into the 2nd FU conveyer through motoring blanking device, is delivered to mix material storehouse by the 3rd FU conveyer together with the dry ash then discharged with layering cooling desulfurizing tower, is not suitable for mixing the material of cement and then dispatches from the factory process；The connection pipeline of described layering cooling desulfurizing tower and bag filter is provided with cold blast sliding valve and Electric air valve；Described bag filter is connected with chimney by exhaust blower；Described layering cooling desulfurizing tower is connected with kiln tail waste heat boiler or raw material drying workshop by being provided with the flue of Electric air valve；The hot raw material of the tremie pipe of described cyclone preheater are divided into two by high temperature sub-material air valve.
Compared with prior art, this utility model has the advantages that
1, in this utility model, bypass is circulated the collection of volatile matter through cyclone dust removal and flue gas humidification two procedures, and the separation of volatile matter it is circulated from cyclone preheater tremie pipe sub-material entrance bypass flue gas, effectively reduce harmful element circulation collection in firing system, smoke-box, dore furnace and the probability of preheater skinning is alleviated from root, lay a good foundation for producing low alkali cement, escort for stablizing of clinker burning system.
2, this utility model utilizes undecomposed CaCO in cyclone preheater tremie pipe3The flue gas that leaks informaton kiln tail carries out absorbing and cooling temperature, then utilizes the CaCO that height decomposes3The CaO generated carries out desulfurization process to bypass flue gas, can reduce the thermal loss in flue gas cooling, can reduce again the discharge of dusty gas.
3, the bypass flue gas after being humidified in this utility model is as the combustion air of " strong reducing zone " in fractional combustion, the occurring principle utilizing water gas strengthens the reducing atmosphere in this district, powerful guarantee is provided for denitration and reduction ammonia discharge rate, bypass technology and grading combustion technology are combined, break through the reburning technology rigors to reburning fuel, in the case of use is anthracitic, denitration efficiency is still up to more than 90%, and ammonia reduction rate is up to 80%.Under existing environment protection emission requires, it might even be possible to reach the effect of zero spray ammonia fall nitrogen.
Accompanying drawing explanation
The utility model is described in further detail below in conjunction with the accompanying drawings:
Fig. 1 is the structural representation of this utility model a kind of cement kiln bypass combined and staged burning kiln exit gas processing means；
In Fig. 1: 1 is rotary kiln, 2 is kiln tail smoke-box, 3 is dore furnace, 4 is electric bypass vent valve, 5 is cyclone separator, 6 is layering cooling desulfurizing tower, 7 is cooling blower, 8 is a FU conveyer, 9 is double-deck air locking valve with counter weight, 10 is Electric air valve, 11 is bag filter, 12 is motoring blanking device, 13 is the 2nd FU conveyer, 14 is the 3rd FU conveyer, 15 is exhaust blower, 16 is chimney, 17 is Electric air valve, 18 is Electric air valve, 19 is centrifugal blower, 20 is high temperature sub-material air valve, 21 is tertiary air valve, 22 is air-valve on fire, 23 is tertiary-air pipe, 24 is fire upcast ventilation pipe, 25 is reduction airduct, 26 is cold blast sliding valve, C5 is cyclone preheater.
Detailed description of the invention
With embodiment, this utility model is described in further detail below in conjunction with the accompanying drawings:
As shown in Figure 1, the technique that a kind of cement kiln bypass combined and staged burning kiln exit gas processes, under the effect of exhaust blower 15, from the connecting portion i.e. kiln tail smoke-box 2 of rotary kiln 1 and dore furnace 3, extract the kiln exit gas of 1% to 15% out as bypass flue gas by electric bypass vent valve 4.Bypass flue gas is sufficiently mixed with the hot raw material of part separated through high temperature sub-material air valve 20 from cyclone preheater C5 in rising flue, carries out gas material heat exchange.
Flue gas after gas material heat exchange is through cyclone separator 5, and the hot raw material using 90% enter bottom layering cooling desulfurizing tower 6 as desulfurizing agent after separating, and flue gas then enters in layering cooling desulfurizing tower 6 and carries out layering cooling.
Flue gas is entered by being layered cooling desulfurizing tower 6 top, and layering cooling desulfurizing tower 6 carries out the spray cooling of the first round to flue gas, and temperature controls between 550 DEG C～650 DEG C.Water injection system uses automatic temperature-adjusting control system, is automatically adjusted injection flow rate according to flue gas exit temperature change.Flue gas continues traveling downwardly, and receives the second spray cooling taken turns, and flue-gas temperature controls, between 150 DEG C～300 DEG C, then to mix with the hot raw material from cyclone separator 5, forms alkalescence atmosphere, flue gas is carried out desulfurization and denitrogenates.It is provided with two cooling blowers 7 bottom layering cooling desulfurizing tower 6, on the one hand supplements cold wind and strengthen being sufficiently mixed of flue gas, steam and hot raw material three with auxiliary temperature-reducing, one side.The middle and upper part of layering cooling desulfurizing tower 6 uses the mode of the multi-level water spray flue gas that leaks informaton kiln tail to carry out layering cooling, and bottom aqueous vapor mix with cyclone separator 5 supplied materials, and the alkaline atmosphere of formation, bottom arranges cooling blower 7 and dry and wet material transfer equipment.
Flue gas after layering cooling desulfurizing tower 6 processes, according to production requirement, the flue gas less than 150 DEG C enters after bag filter 11 purifies and enters air by exhaust blower 15 through chimney 16；Flue gas higher than 300 DEG C then can enter kiln tail waste heat boiler and generate electricity, or enters raw material drying workshop as hot blast source, takes air quantity and is then adjusted by the aperture of Electric air valve 17；Flue gas between 150 DEG C～300 DEG C then can enter bag filter 11 by Electric air valve 10 by regulating the aperture of cold blast sliding valve 26 after cooling.
The dry ash that layering cooling desulfurizing tower 6 is discharged, falls into the 3rd FU conveyer 14 through a FU conveyer 8 and double-deck air locking valve with counter weight 9, and the outer row of wet slag processes.The dust that bag filter 11 is collected, falls into the 2nd FU conveyer 13 through motoring blanking device 12, is delivered to mix material storehouse by the 3rd FU conveyer 14 together with the dry ash then discharged with layering cooling desulfurizing tower 6, is not suitable for mixing the material of cement and then dispatches from the factory process.
As it is shown in figure 1, the flue gas trend that above section is cement kiln tail bypass wind discharging and dust disposal flow process.
As it is shown in figure 1, the fractional combustion fume treatment process being cement kiln dore furnace with lower part:
As it is shown in figure 1, kiln tail power transportation pipe is transformed, utilize point wind to divide the mode of coal sub-material, in dore furnace 3 inside, set up three combustion zones, i.e. " weak reducing zone ", " strong reducing zone " and " burning-out zone " from bottom to top.Introduce the richness steam-laden bypass wind of about 650 DEG C from layering cooling desulfurizing tower 6, enter " strong reducing zone ", utilize water gas occurring principle to form reducibility gas CO and H2, and then NOXIt is reduced into N2；After the layering cooling of kiln tail bypass flue gas layered cooling desulfurizing tower 6, it is partly into cogeneration or as drying thermal source, a part enters air after being purified by bag filter 11, and the material of collection then selects outer row or as the mixing material producing cement according to dry and wet situation.The concrete fractional combustion step of interior three combustion zones of dore furnace 3 includes the following:
From the flue gas of rotary kiln 1, removing outside the bypass flue gas of 1% to 15%, major part enters dore furnace 3, and as the combustion air of dore furnace 3 " weak reducing zone " after dore furnace 3 tapering or lower prop are converged with the tertiary air from tertiary-air pipe 23.The air quantity of tertiary air can be adjusted by the aperture of tertiary air valve 21, and excess air coefficient controls about 0.9.Coal consumption (i.e. main coal in Fig. 1) then controls at 2/3rds of the total coal consumption of dore furnace 3, and coal dust is divided equally two-way feeding tertiary-air pipe 23 and entered stove point top, and C4 raw material (i.e. C4 material in Fig. 1) are sufficiently mixed.The C4 raw material amount in this district (i.e. weak reducing zone in Fig. 1) is coordinated mutually with dore furnace 3 coal ratio, accounts for 2/3rds of C4 raw material total amount.
Under the effect of centrifugal blower 19, by adjusting the aperture of Electric air valve 18, the richness steam-laden kiln tail bypass wind of about 650 DEG C is extracted from layering cooling desulfurizing tower 6, " strong reducing zone " is entered in the middle part of dore furnace 3, reduction wind mixes with flue gas in stove, as the combustion air in this district, excess air coefficient controls about 0.7.Coal consumption (i.e. main coal in Fig. 1) then controls at 1/3rd of the total coal consumption of dore furnace 3, and coal dust is divided equally two-way feeding reduction airduct 25 and entered stove point top, and C4 raw material (i.e. C4 material in Fig. 1) are sufficiently mixed.The C4 raw material amount in this district (i.e. strong reducing zone in Fig. 1) is coordinated mutually with dore furnace 3 coal ratio, accounts for 1/3rd of C4 raw material total amount.When oxygen content is less than 5%, mixed gas adds the steam of about 1%, the generation of NO can be suppressed, the tail-off time of coal dust can be shortened again, utilize a large amount of CO and H that the occurring principle of water gas produces simultaneously2And the reducing substances in coal-fired volatile matter again, reduce the thermal NO produced in rotary kiln, suppress the formation of reducing zone fuel type NO simultaneously.
In order to ensure after-flame and the elimination of CO of dore furnace 3 " strong reducing zone " coal dust, ensure the calorific capacity of dore furnace, a part of wind (i.e. fiery windward in Fig. 1) is drawn from tertiary-air pipe 23, tangentially entering " burning-out zone " in dore furnace 3 top, on fire, the size of air quantity can be adjusted by the upper air-valve 22 of fire.
As it is shown in figure 1, by the way of arranging reduction airduct 25, two the system organic connections of bypass and fractional combustion are got up.On the one hand reducing the thermal loss of tradition bypass quenching technology, on the one hand the reduction wind as dore furnace 3 carries out denitrating flue gas.
As shown in Figure 1, this utility model one cement kiln bypass combined and staged burning kiln exit gas processing means, including: the kiln tail smoke-box 2 of rotary kiln 1, dore furnace 3, cyclone preheater C5, cyclone separator 5, layering cooling desulfurizing tower 6, bag filter 11.Wherein, the kiln tail smoke-box 2 of rotary kiln 1 is connected (rotary kiln 1 and the connecting portion i.e. kiln tail smoke-box 2 of dore furnace 3) with dore furnace 3；The kiln tail smoke-box 2 of rotary kiln 1 is connected with cyclone separator 5 by bypass flue；The hot raw material of the tremie pipe of cyclone preheater C5 are divided into two, a part enters the kiln tail smoke-box 2 of rotary kiln 1 by former road, another part enters the bypass flue gas extracted out from kiln tail smoke-box 2, enter bottom layering cooling desulfurizing tower 6 after heat exchange is decomposed and gas-vapor mix, utilize the alkaline atmosphere formed to carry out dropping nitrogen desulfurization except alkali；Cyclone separator 5 is connected with layering cooling desulfurizing tower 6 top；It is connected with bag filter 11 bottom layering cooling desulfurizing tower 6；It is connected with dore furnace 3 by reduction airduct 25 in the middle part of layering cooling desulfurizing tower 6；
Described dore furnace 3 sets burning-out zone, strong reducing zone, weak reducing zone the most respectively；Tertiary-air pipe 23 is connected with dore furnace 3 lower prop；Fire upcast ventilation pipe 24 is connected with dore furnace 3 column body；Reduction airduct 25 one end is connected in the middle part of dore furnace 3, and the other end is connected with layering cooling desulfurizing tower 6.Reduction airduct 25 is provided with Electric air valve 18 and centrifugal blower 19.Tertiary-air pipe 23 is provided with tertiary air valve 21.Fire upcast ventilation pipe 24 is provided with air-valve 22 on fire.
Described bypass flue is provided with electric bypass vent valve 4.It is provided with two cooling blowers 7 bottom layering cooling desulfurizing tower 6, on the one hand supplements cold wind and strengthen being sufficiently mixed of flue gas, steam and hot raw material three with auxiliary temperature-reducing, one side.Two-layer water spray layer it is provided with in layering cooling desulfurizing tower 6；The dry ash that layering cooling desulfurizing tower 6 is discharged, falls into the 3rd FU conveyer 14 through a FU conveyer 8 and double-deck air locking valve with counter weight 9.The dust that bag filter 11 is collected, falls into the 2nd FU conveyer 13 through motoring blanking device 12, is delivered to mix material storehouse by the 3rd FU conveyer 14 together with the dry ash then discharged with layering cooling desulfurizing tower 6, is not suitable for mixing the material of cement and then dispatches from the factory process.The connection pipeline of layering cooling desulfurizing tower 6 and bag filter 11 is provided with cold blast sliding valve 26 and Electric air valve 10.Bag filter 11 is connected with chimney 16 by exhaust blower 15.Layering cooling desulfurizing tower 6 is connected with kiln tail waste heat boiler or raw material drying workshop by being provided with the flue of Electric air valve 17.The hot raw material of the tremie pipe of described cyclone preheater C5 are divided into two by high temperature sub-material air valve 20.
Above-described detailed description of the invention; the purpose of this utility model, technical scheme and beneficial effect have been carried out further detailed description; it is it should be understood that; the foregoing is only detailed description of the invention of the present utility model; it is not used to protection domain of the present utility model; sending out within spirit of the present utility model and principle, any amendment made, equal replacement and improvement etc., within should be included in protection domain of the present utility model.
Claims (8)
1. a cement kiln bypass combined and staged burning kiln exit gas processing means, it is characterised in that including: the kiln tail smoke-box of rotary kiln, dore furnace, cyclone preheater, cyclone separator, layering cooling desulfurizing tower, bag filter；The kiln tail smoke-box of described rotary kiln is connected with dore furnace；The kiln tail smoke-box of rotary kiln is connected with cyclone separator by bypass flue；The hot raw material of the tremie pipe of cyclone preheater are divided into two, and a part enters the kiln tail smoke-box of rotary kiln by former road, and another part enters the bypass flue gas extracted out from kiln tail smoke-box；Cyclone separator is connected with layering cooling desulfurizing tower top；It is connected with bag filter bottom layering cooling desulfurizing tower；It is connected with dore furnace by reduction airduct in the middle part of layering cooling desulfurizing tower；Described dore furnace sets burning-out zone, strong reducing zone, weak reducing zone the most respectively.
2. device as claimed in claim 1, it is characterized in that, described dore furnace lower prop is connected with tertiary-air pipe, and described dore furnace column body is connected with fire upcast ventilation pipe, being connected with reduction airduct in the middle part of described dore furnace, the reduction airduct other end is connected with layering cooling desulfurizing tower.
3. device as claimed in claim 2, it is characterised in that described reduction airduct is provided with Electric air valve and centrifugal blower；Described tertiary-air pipe is provided with tertiary air valve；Described fire upcast ventilation pipe is provided with air-valve on fire.
4. device as claimed in claim 1, it is characterised in that described bypass flue is provided with electric bypass vent valve.
5. device as claimed in claim 1, it is characterised in that be provided with two cooling blowers bottom described layering cooling desulfurizing tower.
6. the device as described in claim 1 or 5, it is characterised in that be provided with two-layer water spray layer in described layering cooling desulfurizing tower.
7. device as claimed in claim 1, it is characterised in that the dry ash that described layering cooling desulfurizing tower is discharged, falls into the 3rd FU conveyer through a FU conveyer and double-deck air locking valve with counter weight；The dust that described bag filter is collected, falls into the 2nd FU conveyer through motoring blanking device, is delivered to mix material storehouse by the 3rd FU conveyer together with the dry ash then discharged with layering cooling desulfurizing tower；The connection pipeline of described layering cooling desulfurizing tower and bag filter is provided with cold blast sliding valve and Electric air valve；Described bag filter is connected with chimney by exhaust blower；Described layering cooling desulfurizing tower is connected with kiln tail waste heat boiler or raw material drying workshop by being provided with the flue of Electric air valve.
8. device as claimed in claim 1, it is characterised in that the hot raw material of the tremie pipe of described cyclone preheater are divided into two by high temperature sub-material air valve.
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| CN201521058886.1U CN205425856U (en) | 2015-12-16 | 2015-12-16 | Cement kiln bypass joint fractional combustion kiln tail smoke treatment device that leaks informaton |
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| CN201521058886.1U CN205425856U (en) | 2015-12-16 | 2015-12-16 | Cement kiln bypass joint fractional combustion kiln tail smoke treatment device that leaks informaton |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444582A (en) * | 2015-12-16 | 2016-03-30 | 上海三橙能源科技有限公司 | Cement kiln tail flue gas treatment device and technological method characterized by combination of bypass air release and staged combustion |
| CN106224996A (en) * | 2016-09-22 | 2016-12-14 | 成都建筑材料工业设计研究院有限公司 | A kind of instability eliminating cement kiln burning waste is harmful to the system of chlorine |
| CN111097282A (en) * | 2019-12-31 | 2020-05-05 | 崇左南方水泥有限公司 | Method and device for desulfurizing cement kiln flue gas by using white mud |
| CN112254529A (en) * | 2020-10-27 | 2021-01-22 | 洛阳蓝源环保科技有限公司 | Cement kiln decomposing furnace and method for reducing nitrogen oxides |
| CN113694704A (en) * | 2021-09-03 | 2021-11-26 | 浙江省生态环境科学设计研究院 | Self-denitration and SNCR denitration system and method for cement kiln flue gas decomposition furnace |
-
2015
- 2015-12-16 CN CN201521058886.1U patent/CN205425856U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444582A (en) * | 2015-12-16 | 2016-03-30 | 上海三橙能源科技有限公司 | Cement kiln tail flue gas treatment device and technological method characterized by combination of bypass air release and staged combustion |
| CN105444582B (en) * | 2015-12-16 | 2017-11-10 | 上海三橙能源科技有限公司 | A kind of combined and staged kiln exit gas processing unit and the process of burning of cement kiln bypass |
| CN106224996A (en) * | 2016-09-22 | 2016-12-14 | 成都建筑材料工业设计研究院有限公司 | A kind of instability eliminating cement kiln burning waste is harmful to the system of chlorine |
| CN111097282A (en) * | 2019-12-31 | 2020-05-05 | 崇左南方水泥有限公司 | Method and device for desulfurizing cement kiln flue gas by using white mud |
| CN112254529A (en) * | 2020-10-27 | 2021-01-22 | 洛阳蓝源环保科技有限公司 | Cement kiln decomposing furnace and method for reducing nitrogen oxides |
| CN112254529B (en) * | 2020-10-27 | 2022-06-14 | 洛阳蓝源环保科技有限公司 | Cement kiln decomposing furnace and method for reducing nitrogen oxides |
| CN113694704A (en) * | 2021-09-03 | 2021-11-26 | 浙江省生态环境科学设计研究院 | Self-denitration and SNCR denitration system and method for cement kiln flue gas decomposition furnace |
| CN113694704B (en) * | 2021-09-03 | 2024-06-04 | 浙江省生态环境科学设计研究院 | System and method for self-denitration combined with SNCR denitration of cement kiln flue gas decomposing furnace |
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Address after: Room A241, Building 1, No. 1628 Suzhao Road, Minhang District, Shanghai, 201100 Patentee after: Shanghai Sancheng New Material Technology Co.,Ltd. Patentee after: SHANGHAI SANRONG ENVIRONMENTAL PROTECTION ENGINEERING Co.,Ltd. Address before: Room A241, Building 1, No. 1628 Suzhao Road, Minhang District, Shanghai, 201100 Patentee before: SHANGHAI SANCHENG ENERGY TECHNOLOGY Co.,Ltd. Patentee before: SHANGHAI SANRONG ENVIRONMENTAL PROTECTION ENGINEERING Co.,Ltd. |
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