CN213089779U - Active coke carbonization high-temperature high-dust flue gas sectional type evaporation device - Google Patents
Active coke carbonization high-temperature high-dust flue gas sectional type evaporation device Download PDFInfo
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- CN213089779U CN213089779U CN202021575856.9U CN202021575856U CN213089779U CN 213089779 U CN213089779 U CN 213089779U CN 202021575856 U CN202021575856 U CN 202021575856U CN 213089779 U CN213089779 U CN 213089779U
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Abstract
The utility model provides an active coke carbonization high-temperature high-dust flue gas sectional type evaporation device, which comprises a high-temperature evaporator, a waste heat boiler, a coal economizer and a high-temperature evaporator, exhaust-heat boiler and economizer arrange in proper order along the flow direction of flue gas, high temperature evaporator and economizer all communicate with exhaust-heat boiler through the flue, the cooling water entry has still been seted up on the economizer, be equipped with first soda pipeline in the economizer, be equipped with second soda pipeline in the high temperature evaporator, be equipped with third soda pipeline in the exhaust-heat boiler, the entry and the cooling water entry intercommunication of first soda pipeline, the entry intercommunication of fourth soda pipeline and second soda pipeline is passed through in the export of first soda pipeline, saturated steam outlet has still been seted up on the exhaust-heat boiler, the entry and the fourth soda pipeline intercommunication of third soda pipeline, the export of second soda pipeline and the export of third soda pipeline all communicate with saturated steam outlet.
Description
Technical Field
The utility model relates to an environmental protection engineering field especially relates to an active burnt carbomorphism high temperature high dust flue gas segmentation evaporation plant.
Background
With the development of industry in China and the improvement of environmental protection requirements, the flue gas treatment of industrial kilns is vigorously and stably carried out under the promotion of governments. Wherein the temperature of the active coke carbonization flue gas after passing through the incinerator is up to 1100-1200 ℃, and meanwhile, the flue gas contains a large amount of solid pollutants, and part of the solid pollutants are in a molten state at high temperature. Therefore, the flue gas needs to be dedusted and cooled by the evaporator to ensure the safe operation of subsequent flue gas treatment facilities and recycle the residual heat energy of the high-temperature flue gas.
The space between the tubes in the existing evaporator in the market is small, so that the situation that the tubes are blocked by molten solid pollutants is easily caused due to overhigh temperature of flue gas in the operation process, and the evaporator is not suitable for treating high-temperature and high-dust flue gas generated in the production of industrial kilns such as an active coke furnace incinerator and the like.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's defect, provide an active coke carbonization high temperature high dust flue gas segmentation evaporation plant to be applicable to the high temperature high dust flue gas that industrial stoves such as active coke oven incinerator produced in production.
The utility model discloses a realize like this:
the utility model provides an active coke carbonization high-temperature high-dust flue gas sectional type evaporation device, which comprises a high-temperature evaporator, a waste heat boiler and an economizer, wherein the high-temperature evaporator, the waste heat boiler and the economizer are independent from each other, the high-temperature evaporator, the waste heat boiler and the economizer are sequentially arranged along the flow direction of flue gas, the high-temperature evaporator and the economizer are communicated with the waste heat boiler through flues, the high-temperature evaporator is provided with a flue gas inlet of a flue gas sectional type evaporation device, the economizer is provided with a flue gas outlet of the flue gas sectional type evaporation device, the flue gas outlet is communicated with a draught fan through a flue, the economizer is also provided with a cooling water inlet, the economizer is internally provided with a first steam water pipeline, the high-temperature evaporator is internally provided with a second steam water pipeline, the waste heat boiler is internally provided with a third steam water pipeline, the inlet of the first steam water pipeline is communicated with the cooling water inlet, the outlet of the first steam-water pipeline is communicated with the inlet of the second steam-water pipeline through a fourth steam-water pipeline, the fourth steam-water pipeline penetrates through the waste heat boiler, a saturated steam outlet is further formed in the waste heat boiler, the inlet of the third steam-water pipeline is communicated with the fourth steam-water pipeline, and the outlet of the second steam-water pipeline and the outlet of the third steam-water pipeline are communicated with the saturated steam outlet.
Preferably, the second steam pipeline comprises a plurality of first tubes perpendicular to the flowing direction of the flue gas, the first tubes are arranged in parallel at intervals, and the distance between the first tubes is 90-150 mm.
Preferably, the first steam-water pipeline comprises a plurality of second tubes, the third steam-water pipeline comprises a plurality of third tubes, and each of the second tubes and each of the third tubes are perpendicular to the flow direction of the flue gas.
Preferably, the cooling water inlet is located at the top of the economizer.
Preferably, the saturated steam outlet is positioned at the top of the waste heat boiler.
Preferably, the top of the high-temperature evaporator is provided with an ash cleaning hole.
Preferably, the bottom of the high-temperature evaporator and the bottom of the waste heat boiler are both provided with an ash discharge valve and an ash bin.
The utility model discloses following beneficial effect has:
the utility model provides an active coke carbonization high temperature dust flue gas segmentation evaporation plant adopts the sectional type design, the tubulation interval reaches 90 ~ 150mm in the high temperature evaporator, be difficult to take place blocking phenomenon, the flue gas can circulate smoothly always in the high temperature evaporator, in addition, high temperature evaporator upper portion sets up the deashing hole, can realize online deashing, in time get rid of the deposition that molten state solid pollutant cooled and hardened formation on the tubulation of high temperature evaporator, can ensure the operation safety of high temperature evaporator, high temperature evaporator has reduced the flue gas temperature that gets into exhaust-heat boiler and economizer, the operation safety of exhaust-heat boiler and economizer has been ensured, high temperature evaporator has held back partial molten state solid pollutant simultaneously, molten state solid pollutant diminishes and the hardness improves the adhesion and reduces after the high temperature evaporator cooling, more difficult adhesion is on the tubulation of follow-up heat transfer pipeline, preventing the subsequent heat exchange pipeline from being blocked by the molten solid pollutants in the flue gas; because the molten state solid pollutant in the flue gas is partially intercepted in the high-temperature evaporator, and the viscosity of the molten state solid pollutant entering the waste heat boiler is lower, the tube nest in the waste heat boiler can be closely arranged, so that the volume of the waste heat boiler is reduced, and the arrangement space is saved; the utility model provides a coal economizer make full use of flue gas waste heat energy carries out preliminary preheating to boiler feed water, is favorable to the cooling water to vaporize fast in high temperature evaporator and exhaust-heat boiler.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of an active coke carbonization high-temperature high-dust flue gas sectional type evaporation device provided by the embodiment of the utility model.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present invention provides an active coke carbonization high-temperature high-dust flue gas sectional type evaporation device, including a high-temperature evaporator 1, a waste heat boiler 2 and an economizer 3, wherein the high-temperature evaporator 1, the waste heat boiler 2 and the economizer 3 are independent from each other, the high-temperature evaporator 1, the waste heat boiler 2 and the economizer 3 are sequentially arranged along a flow direction of flue gas, the high-temperature evaporator 1 and the economizer 3 are both communicated with the waste heat boiler 2 through a flue 4, a flue gas inlet of the flue gas sectional type evaporation device is arranged on the high-temperature evaporator 1, a flue gas outlet of the flue gas sectional type evaporation device is arranged on the economizer 3, the flue gas outlet is communicated with an induced draft fan through a flue 4, a cooling water inlet is also arranged on the economizer 3, a first steam water pipeline 5 is arranged in the economizer 3, a second steam water pipeline 9 is arranged in the high-temperature evaporator 1, the waste heat boiler is characterized in that a third steam-water pipeline 10 is arranged in the waste heat boiler 2, an inlet of the first steam-water pipeline 5 is communicated with the cooling water inlet, an outlet of the first steam-water pipeline 5 is communicated with an inlet of the second steam-water pipeline 9 through a fourth steam-water pipeline 11, the fourth steam-water pipeline 11 penetrates through the waste heat boiler 2, a saturated steam outlet is further formed in the waste heat boiler 2, an inlet of the third steam-water pipeline 10 is communicated with the fourth steam-water pipeline 11, and an outlet of the second steam-water pipeline 9 and an outlet of the third steam-water pipeline 10 are communicated with the saturated steam outlet.
High temperature evaporator and exhaust-heat boiler are integrated together in traditional flue gas evaporator, and heat transfer tubulation is inseparable in traditional flue gas evaporator, and the interval is less, and the molten state solid pollutant in the active coke carbonization flue gas can adhere to each in the heat transfer in-process on the tubulation, lead to the clearance between tubulation to become littleer or even block up the clearance between tubulation completely for follow-up flue gas can not continue to circulate smoothly, has reduced the life of equipment, also takes place danger easily.
The utility model provides an active burnt carbomorphism high temperature high dust flue gas segmentation evaporation plant adopts the sectional type design, and the tubulation interval reaches 90 ~ 150mm in high temperature evaporator 1, is difficult to take place blocking phenomenon, and the flue gas can circulate smoothly always in high temperature evaporator 1, and in addition, high temperature evaporator 1 upper portion sets up the deashing hole, can realize online deashing, in time gets rid of the ash deposit that molten state solid pollutant cooled off the sclerosis formation on high temperature evaporator's tubulation, can ensure high temperature evaporator 1's operation safety; on one hand, the high-temperature evaporator 1 reduces the temperature of the flue gas entering the waste heat boiler 2 and the economizer 3, ensures the operation safety of the waste heat boiler 2 and the economizer 3, and avoids the dangerous situation that the temperature of the flue gas in the waste heat boiler 2 and the economizer 3 is too high, on the other hand, the high-temperature evaporator 1 intercepts partial molten solid pollutants, so that the molten solid pollutants entering the waste heat boiler 2 and the economizer 3 are reduced, the hardness of the molten solid pollutants entering the waste heat boiler 2 and the economizer 3 is improved and the adhesion is reduced after being cooled by the high-temperature evaporator, the molten solid pollutants are more difficult to adhere to the tubes of the subsequent heat exchange pipelines (the waste heat boiler 2 and the economizer 3), and the molten solid pollutants in the flue gas are prevented from blocking the subsequent heat exchange pipelines; because most of the molten solid pollutants in the flue gas are intercepted in the high-temperature evaporator 1 and the viscosity of the molten solid pollutants entering the waste heat boiler is low, the tubes in the waste heat boiler 2 can be tightly arranged to reduce the volume of the waste heat boiler 2 and save the arrangement space; the utility model provides a 3 make full use of flue gas waste heat energy of economizer carries out preliminary preheating to exhaust-heat boiler feedwater, is favorable to the cooling water to vaporize fast in high temperature evaporator 1 and exhaust-heat boiler 2.
The second steam pipeline 9 comprises a plurality of first tubes perpendicular to the flowing direction of flue gas, the first tubes are arranged in parallel at intervals, and the distance between the first tubes is 90-150 mm, so that blockage is not easy to occur. The first steam-water pipeline 5 comprises a plurality of second tubes, the third steam-water pipeline 10 comprises a plurality of third tubes, and the second tubes and the third tubes are perpendicular to the flowing direction of flue gas, so that heat exchange can be effectively carried out. In this embodiment, the cooling water inlet is located at the top of the economizer 3. The saturated steam outlet is positioned at the top of the waste heat boiler 2.
The bottom of the high-temperature evaporator 1 and the bottom of the waste heat boiler 2 are both provided with an ash discharging valve 8 and an ash bin 7, the high-temperature evaporator 1 and the waste heat boiler 2 are both communicated with the corresponding ash bin 7, and the accumulated ash in the ash bin 7 can be discharged by opening the ash discharging valve 8. In order to remove the deposited dust adhered to the tubes in the high-temperature evaporator 1 and ensure the safe operation of the high-temperature evaporator 1, the top of the high-temperature evaporator 1 is provided with a dust cleaning hole, and a worker can extend a hammer into the dust cleaning hole to knock the tubes in the high-temperature evaporator 1, so that the deposited dust cooled and hardened on the tubes falls into the dust bin 7.
The embodiment of the utility model provides a still provide an active burnt carbonization high temperature high dust flue gas segmentation evaporation plant's evaporation method: cooling water enters the waste heat boiler 2 and the high-temperature evaporator 1 through the economizer 3, the economizer 3 heats boiler feed water by utilizing waste heat energy of smoke gas, high-temperature high-dust smoke gas is sequentially subjected to heat exchange with the cooling water in the high-temperature evaporator 1, the waste heat boiler 2 and the economizer 3 and then is discharged into a draught fan, the distance between tubes in the high-temperature evaporator 1 reaches 90-150 mm, the blockage phenomenon is not easy to occur, the high-temperature evaporator 1 reduces the temperature of the smoke gas entering the waste heat boiler 2 and the economizer 3, the operation safety of the waste heat boiler 2 and the economizer 3 is guaranteed, part of molten solid pollutants are intercepted by the high-temperature evaporator 1, the hardness of the molten solid pollutants is reduced after the molten solid pollutants are reduced and cooled by the high-temperature evaporator, the molten solid pollutants are not easy to adhere to the tubes of subsequent heat exchange pipelines (the waste heat boiler 2 and the economizer 3), and the subsequent heat exchange pipelines are prevented from being blocked by the molten, the top of the high-temperature evaporator 1 is provided with an ash cleaning hole for online ash cleaning, the operation safety of the high-temperature evaporator can be guaranteed, the tubes in the waste heat boiler 2 are tightly arranged, the volume of the waste heat boiler 2 can be reduced, the arrangement space is saved, and the cooling water in the waste heat boiler 2 and the cooling water in the high-temperature evaporator 1 are discharged through a saturated steam outlet on the waste heat boiler 2 after being vaporized.
The utility model is suitable for a high temperature high dust flue gas of production such as active burnt preparation is handled and waste heat recovery field.
The utility model discloses optimize conventional evaporimeter on current basis, developed the sectional type evaporimeter, had following characteristics:
1. the evaporator is arranged in a sectional mode: the spacing between the tubes in the high-temperature evaporator 1 reaches 90-150 mm, so that part of molten solid pollutants can be intercepted while the temperature of the flue gas is reduced, and the subsequent heat exchange pipeline is prevented from being blocked by the molten solid pollutants; the tubes in the waste heat boiler 2 are closely arranged, so that the volume of the waste heat boiler 2 can be reduced, and the arrangement space is saved; the economizer 3 fully utilizes the waste heat energy of the flue gas to heat the boiler feed water.
2. The upper part of the high-temperature evaporator 1 is provided with the ash cleaning hole, so that online ash cleaning can be realized, and the operation safety of the evaporator is guaranteed.
The utility model discloses the main part sets up to sectional type evaporation plant, including high temperature evaporator 1, exhaust-heat boiler 2 and economizer 3. The high-temperature evaporator 1, the waste heat boiler 2 and the economizer 3 are connected by a flue 4, and a steam-water pipeline 5 enters the waste heat boiler 2 and the high-temperature evaporator 1 through the economizer 3; the generated high-temperature steam is discharged through a steam-water pipeline 5; the upper part of the high-temperature evaporator 1 is provided with an ash cleaning hole 6; the lower parts of the high-temperature evaporator 1 and the waste heat boiler 2 are respectively provided with an ash bin 7 and an ash discharge valve 8.
The utility model discloses because above-mentioned structure and setting have the ability that the sectional type handled high temperature high dust flue gas. High temperature evaporator 1 can not only reduce the flue gas temperature effectively, prevent to lead to exhaust-heat boiler 2 overtemperature and jam because of the flue gas temperature is too high, the safe operation of exhaust-heat boiler 2 and follow-up equipment has been protected, can hold back partial molten state's solid pollutant in high temperature evaporator 1 simultaneously, reduce follow-up equipment jam's probability, still have the function of online clearance deposition, the heat exchange efficiency and the operation continuity of evaporimeter have been ensured, evaporator life have been improved, effectively reduce the flue gas temperature, retrieve a large amount of waste heat energy, considerable economic benefits has been produced, the safe operation of follow-up flue gas treatment equipment is ensured simultaneously.
The waste heat boiler 2 is provided with a boiler water supply inlet and a saturated steam outlet; high-temperature flue gas enters from a flue gas inlet of a high-temperature evaporator 1, passes through the high-temperature evaporator 1, a waste heat boiler 2 and an economizer 3 respectively, and then enters an induced draft fan through a flue 4. Boiler feed water is heated by an economizer 3 and then enters a waste heat boiler 2, and respectively enters the waste heat boiler 2 and a high-temperature evaporator 1 through a steam-water pipeline 5 for heating, and high-temperature steam is discharged from a saturated steam outlet through the steam-water pipeline 5.
The interval between the tubes of the high-temperature evaporator 1 is wide, so that interception of molten solid pollutants in high-temperature and high-dust flue gas and primary cooling of the flue gas can be realized, damage and blockage of high-temperature flue gas to the second-stage evaporator are reduced, and safe operation of subsequent flue gas treatment equipment is protected.
The high-temperature evaporator is provided with the ash cleaning hole, so that online ash cleaning can be realized; the lower parts of the high-temperature evaporator and the waste heat boiler are provided with an ash bin and an ash discharge valve, so that accumulated ash can be smoothly discharged.
The utility model provides a be applied to active coke ization high temperature high dust flue gas segmentation evaporation plant belongs to the flue gas and administers environmental protection technical field. Aiming at the characteristics of high-temperature and high-dust flue gas generated by industrial kilns such as an active coke furnace incinerator and the like, the utility model is provided with a multi-section evaporator, and the main body part comprises a high-temperature evaporator 1, a waste heat boiler 2 and an economizer 3; the lower parts of the high-temperature evaporator 1 and the waste heat boiler 2 are both provided with an ash discharge valve 8, and the lower part of the ash discharge valve 8 is provided with an ash bin 7; an ash cleaning hole 6 is arranged at the upper part of the high-temperature evaporator 1, and cooled and hardened accumulated ash is discharged in time through an ash bin 7 by means of knocking and the like through the online ash cleaning hole 6, so that online ash cleaning of the evaporator can be realized; the economizer 3 further reduces the flue gas temperature and initially heats the boiler feed water. The utility model discloses shown evaporimeter adopts multistage formula evaporation heat transfer, reaches 1 reduction flue gas temperature of high temperature evaporator, and exhaust-heat boiler 2 absorbs the waste heat, the purpose of economizer 3 preliminary heating boiler feedwater.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides an active burnt carbonization high temperature high dust flue gas segmentation evaporation plant which characterized in that: the high-temperature evaporator, the waste heat boiler and the economizer are mutually independent, the high-temperature evaporator, the waste heat boiler and the economizer are sequentially arranged along the flow direction of flue gas, the high-temperature evaporator and the economizer are communicated with the waste heat boiler through flues, a flue gas inlet of a flue gas sectional type evaporation device is formed in the high-temperature evaporator, a flue gas outlet of the flue gas sectional type evaporation device is formed in the economizer, the flue gas outlet is communicated with an induced draft fan through a flue, a cooling water inlet is further formed in the economizer, a first steam water pipeline is arranged in the economizer, a second steam water pipeline is arranged in the high-temperature evaporator, a third steam water pipeline is arranged in the waste heat boiler, the inlet of the first steam water pipeline is communicated with the cooling water inlet, and the outlet of the first steam water pipeline is communicated with the inlet of the second steam water pipeline through a fourth steam water pipeline, the fourth steam-water pipeline penetrates through the waste heat boiler, a saturated steam outlet is further formed in the waste heat boiler, an inlet of the third steam-water pipeline is communicated with the fourth steam-water pipeline, and an outlet of the second steam-water pipeline and an outlet of the third steam-water pipeline are communicated with the saturated steam outlet.
2. The sectional type active coke-charring high-temperature and high-dust flue gas evaporation device as claimed in claim 1, wherein: the second steam pipeline comprises a plurality of first tubes perpendicular to the flowing direction of flue gas, the first tubes are arranged in parallel at intervals, and the distance between the first tubes is 90-150 mm.
3. The sectional type active coke-charring high-temperature and high-dust flue gas evaporation device as claimed in claim 1, wherein: the first steam-water pipeline comprises a plurality of second tubes, the third steam-water pipeline comprises a plurality of third tubes, and each second tube and each third tube are perpendicular to the flow direction of the flue gas.
4. The sectional type active coke-charring high-temperature and high-dust flue gas evaporation device as claimed in claim 1, wherein: the cooling water inlet is positioned at the top of the economizer.
5. The sectional type active coke-charring high-temperature and high-dust flue gas evaporation device as claimed in claim 1, wherein: and the saturated steam outlet is positioned at the top of the waste heat boiler.
6. The sectional type active coke-charring high-temperature and high-dust flue gas evaporation device as claimed in claim 1, wherein: and the top of the high-temperature evaporator is provided with an ash cleaning hole.
7. The sectional type active coke-charring high-temperature and high-dust flue gas evaporation device as claimed in claim 1, wherein: and ash discharge valves and ash bins are arranged at the bottoms of the high-temperature evaporator and the waste heat boiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021575856.9U CN213089779U (en) | 2020-07-31 | 2020-07-31 | Active coke carbonization high-temperature high-dust flue gas sectional type evaporation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021575856.9U CN213089779U (en) | 2020-07-31 | 2020-07-31 | Active coke carbonization high-temperature high-dust flue gas sectional type evaporation device |
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| Publication Number | Publication Date |
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| CN213089779U true CN213089779U (en) | 2021-04-30 |
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| CN202021575856.9U Active CN213089779U (en) | 2020-07-31 | 2020-07-31 | Active coke carbonization high-temperature high-dust flue gas sectional type evaporation device |
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| CN (1) | CN213089779U (en) |
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2020
- 2020-07-31 CN CN202021575856.9U patent/CN213089779U/en active Active
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