CN209876908U - Closed type cyclic utilization system for slag flushing water of slag tapping boiler - Google Patents
Closed type cyclic utilization system for slag flushing water of slag tapping boiler Download PDFInfo
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- CN209876908U CN209876908U CN201920453269.3U CN201920453269U CN209876908U CN 209876908 U CN209876908 U CN 209876908U CN 201920453269 U CN201920453269 U CN 201920453269U CN 209876908 U CN209876908 U CN 209876908U
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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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- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
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Abstract
The utility model discloses a closed type recycling system for slag flushing water of a liquid slag discharging boiler, which comprises a cyclone, a slag melting tank and a granulating water tank which are sequentially connected from top to bottom, wherein the granulating water tank is provided with a slag flushing water outlet and a slag flushing water inlet, smoke of the cyclone is discharged through a smoke outlet of a hearth, the slag flushing water outlet is connected with a sedimentation filter tank, the upper part of the sedimentation filter tank is connected with a slag flushing water circulating pipeline, and the other end of the slag flushing water circulating pipeline is guided to the slag flushing water outlet; the slag flushing water circulation pipeline is also connected with a flue gas waste heat refrigeration circulation device, and the flue gas waste heat refrigeration circulation device comprises a generation chamber, an absorption chamber, an evaporation chamber and a condensation chamber. The utility model discloses utilize slag tap boiler afterbody flue gas waste heat to prepare cold volume, prepare cold volume through flue gas waste heat refrigeration cycle device, the cold volume that obtains is used for cooling cyclone slag tap water, has both utilized waste heat resource effectively, has reduced boiler exhaust fume heat loss, can make again slag tap water manifold cycles use, has practiced thrift the water resource.
Description
Technical Field
The utility model relates to a slag tapping boiler and power plant water conservation field, concretely relates to slag flushing water closed cyclic utilization system of slag tapping boiler.
Background
The cyclone furnace is a liquid slag-discharging boiler and is mainly used in thermal power plants. The cyclone combustion mode is that in a cylindrical combustion chamber (cyclone), coal particles are thrown to a cylinder wall by utilizing the high-speed rotation action of air flow, the coal particles are combusted in the space near the cylinder wall and the cylinder wall to form a region with high temperature, ash is melted, partial slag is adhered to the cylinder wall, and the air flow and the coal particles adhered to a liquid slag film have high relative speed to promote the fuel to be fully mixed with the air and to be intensively combusted.
Because the cyclone furnace has a special slag tapping mode, the temperature of ash slag must be controlled to be molten, the ash slag is attached to the wall surface of the cyclone cylinder and is discharged freely under the action of gravity, so the temperature of the ash slag is very high, and the ash slag can be discharged normally only by adopting a proper temperature reduction mode to reduce the temperature of the ash slag.
When liquid slag is granulated, a large amount of heat is emitted, the heat is absorbed by slag flushing water, the temperature of the slag flushing water is increased rapidly, the temperature reaches 85 ℃ at most, the granulated slag flushing water is not suitable for granulating liquid slag again due to too high temperature, new slag flushing water is required to be supplemented to granulate the liquid slag, otherwise, slag bonding contamination in a granulating water tank can be caused due to too high slag granulating temperature, the safe operation of a cyclone furnace is seriously even influenced, and therefore, the proper slag flushing water is required to be used.
For the slag tapping boiler, the combustion in the boiler is violent, the reaction is thorough, the temperature during the combustion is higher than that of the common slag tapping boiler, the temperature of the flue gas at the tail part of the boiler is higher than that of other boilers, if the flue gas is not utilized, a large amount of heat loss can be caused, and the heat efficiency of the boiler is influenced. Therefore, how to utilize the part of the waste heat flue gas is also a hot point of research.
The utility model with publication number CN208536339U discloses an energy recovery device and an energy recovery method, which comprises a water circulation unit, a water inlet pipeline, a water outlet pipeline and an intermediate pipeline, wherein the water inlet pipeline, the water outlet pipeline and the intermediate pipeline are connected with an energy generation device and form a closed circulation water path; and the heat exchange unit is connected with the water inlet pipeline, can perform multi-stage heat exchange in the pipeline and outputs heat energy to be supplied to a user for use. The utility model has the advantages that: by recovering the waste heat of the high-temperature compressed air, a large amount of hot water is generated to be supplied to heating, bathing pools and canteens of a factory or a residential area, and the part of energy is recovered and fed back to users, so that the reutilization rate of energy is improved, and the waste of the energy is reduced; meanwhile, the energy consumption and the air pollution caused by the consumption of a large amount of coal or gas and other fuels when the boiler heats the cold water during heating and hot water supply are effectively solved.
The utility model with the publication number of CN109282280A discloses a circulating fluidized bed boiler wind-water combined slag heat recovery system and a control method thereof. The air-water combined slag heat recovery system comprises a closed circulation subsystem, a cold air heating subsystem and an air preheater bypass subsystem, wherein the closed circulation subsystem reciprocates a circulation medium between a slag cooler and a hot air device of the cold air heating subsystem through a circulation device, so that the slag and the cold air continuously carry out heat exchange, the cold air after temperature rise is conveyed to the air preheater to continuously absorb flue gas heat from a boiler smoke discharge port, and the redundant flue gas heat is sequentially transmitted to a water supply heat exchanger and a condensed water heat exchanger in the air preheater bypass subsystem, so that the flue gas heat exchanges heat with water supply and condensed water. The utility model provides a pair of circulating fluidized bed boiler wind-water is jointly retrieved slag heat system and control method thereof is higher to slag heat recovery utilization ratio to improve circulating fluidized bed boiler's efficiency, reduced the coal is consumed in the electricity generation of unit.
However, the technical scheme still cannot realize the linkage circulation of the tail flue gas of the slagging boiler and the slag flushing water of the liquid slagging boiler.
SUMMERY OF THE UTILITY MODEL
The utility model provides a sediment water closed cyclic utilization system is washed to liquid sediment boiler of arranging can effectively utilize boiler afterbody waste heat flue gas to refrigerate, and the cold volume of preparing is used for cooling the sediment water that washes of the sediment boiler of liquid sediment, has reduced the heat loss of discharging fume of boiler, can also make simultaneously and wash sediment water manifold cycles use, the water economy resource.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the closed type recycling system for slag flushing water of the liquid slag discharging boiler comprises a cyclone, a slag melting tank and a granulating water tank which are sequentially connected from top to bottom, wherein a slag flushing water outlet and a slag flushing water inlet are formed in the granulating water tank, smoke of the cyclone is discharged through a smoke outlet of a hearth, the closed type recycling system also comprises a sedimentation filter tank, the slag flushing water outlet is connected with the sedimentation filter tank, the upper part of the sedimentation filter tank is connected with a slag flushing water circulating pipeline, and the other end of the slag flushing water circulating pipeline is guided to the slag flushing water outlet;
the slag flushing water circulation pipeline is also connected with a flue gas waste heat refrigeration circulation device, and the flue gas waste heat refrigeration circulation device comprises a generation chamber, an absorption chamber, an evaporation chamber and a condensation chamber;
a generation chamber is internally provided with a generation heat exchanger, one end of the generation heat exchanger is connected with the smoke outlet of the hearth, smoke passes through the generation heat exchanger after coming out of the smoke outlet of the hearth, and a cavity of the generation chamber is filled with a refrigerant-absorbent solution;
the top of the generating chamber is connected with a high-pressure refrigeration steam pipeline, the high-pressure refrigeration steam pipeline is connected with a steam inlet of the condensing chamber, a liquid outlet of the condensing chamber is connected with the evaporating chamber through a refrigerant pipeline, and an expansion valve is arranged on the refrigerant pipeline in a matching way;
the evaporation chamber is connected with the slag flushing water circulation pipeline in a heat exchange manner, and a refrigerant-absorbent solution entering the evaporation chamber after passing through the expansion valve absorbs heat of the slag flushing water circulation pipeline to form low-pressure refrigerant steam;
the bottom of the generation chamber is connected with a refrigerant-absorbent concentrated solution conveying pipeline, and the refrigerant-absorbent concentrated solution conveying pipeline is connected with the absorption chamber; the upper part of the evaporation chamber is connected with a gas inlet of the absorption chamber through a low-pressure refrigerant steam channel, the low-pressure refrigerant steam entering the absorption chamber is absorbed by the refrigerant-absorbent concentrated solution to form a refrigerant-absorbent dilute solution in the absorption chamber, and the refrigerant-absorbent dilute solution is conveyed to flow back to the generation chamber through a refrigerant-absorbent dilute solution conveying pipeline.
The condensation chamber is in heat transfer connection with the generation heat exchanger, and heat collected by the condensation chamber is conveyed to the generation heat exchanger.
And a solution circulating pump is arranged on the refrigerant-absorbent dilute solution conveying pipeline.
And a throttling valve is arranged on the refrigerant-absorbent concentrated solution conveying pipeline.
And a slag flushing water circulating pump is arranged on the slag flushing water circulating pipeline.
The evaporation chamber and the absorption chamber are positioned in a chamber body, a partition plate is arranged in the chamber body to divide the chamber body into the evaporation chamber and the absorption chamber, and a low-pressure refrigerant steam channel is formed at the upper part of the partition plate.
And a filtering structure for filtering impurities is arranged at the low-pressure refrigerant steam channel.
The slag flushing water circulation pipeline is contacted and passed through the wall surface of the evaporation chamber, and the slag flushing water circulation pipeline and the evaporation chamber form contact heat exchange.
The cyclone comprises a primary air inlet arranged above the cyclone and a secondary air inlet arranged on the wall surface of the cyclone, wherein the primary air inlet is used for carrying pulverized coal particles into the cyclone, and the secondary air inlet tangentially enters the cyclone and is used for supplementing oxygen required by combustion of the pulverized coal particles.
And a coal economizer is arranged at the smoke outlet of the hearth.
The utility model has the advantages that:
the utility model discloses utilize slag tap boiler afterbody flue gas waste heat to prepare cold volume, prepare cold volume through flue gas waste heat refrigeration cycle device, the cold volume that obtains is used for cooling cyclone slag tap water, has both utilized waste heat resource effectively, has reduced boiler exhaust fume heat loss, can make again slag tap water manifold cycles use, has practiced thrift the water resource.
The utility model discloses get up boiler afterbody flue gas utilization, prepare cold volume with flue gas waste heat refrigeration cycle device, reduced boiler exhaust fume heat loss, improved the thermal efficiency of boiler.
The utility model discloses with the cold volume that obtains to the sluicing water that the temperature rises gradually the processing of cooling down, can promote the water recycling number of times of sluicing effectively, the water economy resource.
The utility model discloses not only can guarantee to dash the cinder water and can use under the prerequisite of the normal safe operation of boiler for a long time, the water economy resource has reduced the boiler heat loss of discharging fume simultaneously, has improved boiler efficiency.
Drawings
Fig. 1 is an overall schematic diagram of an embodiment of the present invention.
The reference numbers illustrate:
1-cyclone cylinder, 2-furnace, 3-primary tuyere, 4-secondary tuyere, 5-slag bath, 6-slag flushing water inlet, 7-granulation water tank, 8-slag flushing water circulating pipeline, 9-slag flushing water circulating pump, 10-sedimentation filter tank, 11-economizer, 12-generating chamber, 13-condensing chamber, 14-evaporating chamber, 15-absorbing chamber, 16-solution circulating pump, 17-throttle valve, 18-wall surface, 19-partition plate, 20-expansion valve and 21-slag flushing water outlet.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
As shown in fig. 1, the closed recycling system for slag flushing water of a slag tapping boiler of the present invention comprises a cyclone 1, a slag melting tank 5, a granulating water tank 7 and a sedimentation filter tank 10 which are sequentially connected from top to bottom.
The cyclone 1 comprises a primary air inlet 3 arranged above the cyclone and a secondary air inlet 4 arranged on the wall surface of the cyclone. The primary air inlet is used for carrying pulverized coal particles into the cyclone cylinder 1, and the jet flow mode can be various, such as a direct-current combustion mode or a rotational flow combustion mode. The secondary air inlet 4 tangentially enters the cyclone 1 and is used for supplementing oxygen required by the combustion of the pulverized coal particles.
The slag bath 5 is arranged below the cyclone 1 and used for storing liquid ash and slag discharged from the cyclone 1, and the liquid ash and slag is discharged from the gap after being stacked to a certain height.
The granulating water tank 7 is arranged below the slag bath 5 and used for cooling liquid ash and slag so as to safely discharge the liquid ash and slag. The granulating water tank 7 is provided with a slag flushing water outlet 21 and a slag flushing water inlet 6, and the slag flushing water inlet 6 is used for providing cooling water for liquid ash.
The sedimentation filter tank 10 is connected with a slag flushing water outlet 21 of the granulation water tank 7 and is used for settling cooled ash.
The slag flushing water outlet 21 is connected with the sedimentation filter tank 10, the upper part of the sedimentation filter tank 10 is connected with a slag flushing water circulating pipeline 8, a slag flushing water circulating pump 9 is arranged on the slag flushing water circulating pipeline 8 in a matching mode, the other end of the slag flushing water circulating pipeline 8 is guided to the slag flushing water outlet 6, and the slag flushing water is conveyed back to the granulating water tank 7 for recycling.
The flue gas of the cyclone cylinder 1 is discharged through the smoke outlet of the hearth 2, and the smoke outlet of the hearth 2 is also provided with a coal economizer 11. The slag flushing water circulation pipeline 8 is also connected with a flue gas waste heat refrigeration circulation device, and the flue gas waste heat refrigeration circulation device utilizes the flue gas at the tail part of the boiler to produce cold energy by using the flue gas waste heat.
The utility model discloses a concrete working process for example does:
the primary air carries pulverized coal to enter the cyclone cylinder 1 from a primary air inlet 3 above the cyclone cylinder, the pulverized coal can be high-alkali coal, violent combustion reaction is carried out under the action of secondary air to generate high-temperature ash, the high-temperature ash enters the slag melting tank 5 along the inner wall of the cyclone cylinder 1 under the action of gravity, the high-temperature ash is cooled and granulated in the granulating water tank 7 through cooling of slag flushing water, the temperature of the slag flushing water is increased, the high-temperature ash enters the sedimentation tank 10 through a slag flushing water outlet 21 to precipitate the ash, the slag flushing water absorbs cold energy prepared by the flue gas waste heat refrigeration circulating device in the slag flushing water circulating pipeline 8 to cool the slag flushing water, and the cooled slag flushing water returns to the granulating water tank 7 again under the action of the slag flushing water circulating pump 9 to complete a cycle.
The utility model provides a slag flushing water of slag tapping boiler recycle the problem that the number of times is low and recycle back liquid slag granulation rate is low, it utilizes boiler afterbody flue gas to prepare cold volume, carries out heat transfer treatment with the slag flushing water that the temperature rose gradually to reach the recycle of slag flushing water.
The flue gas waste heat refrigerating cycle device comprises a generating chamber 12, an absorbing chamber 15, an evaporating chamber 14 and a condensing chamber 13.
A generating heat exchanger is arranged in the generating chamber 12, one end of the generating heat exchanger is connected with the smoke outlet of the hearth 2, smoke passes through the generating heat exchanger after coming out from the smoke outlet of the hearth 2, and a cavity of the generating chamber is filled with refrigerant-absorbent solution. The generation heat exchanger can be a dividing wall type heat exchanger, particularly a plate type heat exchanger or a tubular heat exchanger, and corrosion-resistant steel is adopted. The refrigerant-absorbent solution may be selected from a lithium bromide solution.
The top of the generation chamber 12 is connected with a high-pressure refrigeration steam pipeline, the high-pressure refrigeration steam pipeline is connected with a steam inlet of the condensation chamber 13, a liquid outlet of the condensation chamber 13 is connected with the evaporation chamber 14 through a refrigerant pipeline, and the refrigerant pipeline is provided with an expansion valve 20.
The evaporation chamber 14 is connected with the slag flushing water circulating pipeline 8 in a heat exchange manner, in the embodiment, the slag flushing water circulating pipeline 8 is contacted and passed through the wall surface 18 of the evaporation chamber 14, and the two form contact heat exchange. A plurality of slag flushing water circulation pipelines can be arranged in the evaporation chamber 14. The refrigerant-absorbent solution entering the evaporation chamber 14 after passing through the expansion valve 20 absorbs heat from the slag flushing water circulation pipe 8 to form low pressure refrigerant vapor.
The bottom of the generation chamber 12 is connected with a refrigerant-absorbent concentrated solution conveying pipeline, the refrigerant-absorbent concentrated solution conveying pipeline is connected with the absorption chamber 15, and a throttling valve 17 is arranged on the refrigerant-absorbent concentrated solution conveying pipeline. The upper part of the evaporation chamber 14 is connected with a gas inlet of the absorption chamber 15 through a low-pressure refrigerant steam channel, the low-pressure refrigerant steam entering the absorption chamber 15 is absorbed by the refrigerant-absorbent concentrated solution, a refrigerant-absorbent dilute solution is formed in the absorption chamber 15, the refrigerant-absorbent dilute solution is conveyed and reflows to the generation chamber 12 through a refrigerant-absorbent dilute solution conveying pipeline, and a solution circulating pump 16 is arranged on the refrigerant-absorbent dilute solution conveying pipeline.
In this embodiment, the condensing chamber 13 is connected with the generation heat exchanger in a heat transfer manner, and the heat collected by the condensing chamber 13 is conveyed to the generation heat exchanger to be mixed with the flue gas waste heat, so that the heat can be further utilized.
In this embodiment, the evaporation chamber 14 and the absorption chamber 15 are located in a single chamber body, and the chamber body is provided with a partition plate 19 to divide the chamber body into the evaporation chamber and the absorption chamber, so that the vacuum degrees of the evaporation chamber and the absorption chamber can be simultaneously ensured. And a low-pressure refrigerant vapor passage is formed at the upper portion of the partition plate 19, and a filtering structure for filtering impurities is provided at the low-pressure refrigerant vapor passage.
The heat of the slag flushing water is transferred into the evaporation chamber through the wall surface 18 of the evaporation chamber 14, the refrigerant-absorbent solution absorbs the heat of the slag flushing water circulating pipeline 8 to form low-pressure refrigerant steam, and the low-pressure refrigerant steam enters the absorption chamber 15 through a low-pressure refrigerant steam channel on the partition plate 19. The filtering structure is provided to prevent impurities in the evaporation chamber 14 from entering the solution in the absorption chamber 15, and to prevent the absorbent from being contaminated.
The working process of the flue gas waste heat refrigeration cycle device is as follows:
the boiler tail flue gas from the economizer 11 enters a generating chamber 12, meanwhile, the refrigerant-absorbent dilute solution enters the generating chamber 12 under the action of a solution circulating pump 16, the waste heat of the flue gas is absorbed in the generating chamber 12, high-pressure refrigeration steam enters a condensing chamber 13, is condensed into liquid by cooling water, is expanded to low pressure through an expansion valve 20 and then enters an evaporation chamber 14 to absorb the heat of slag flushing water, the refrigerant-absorbent concentrated solution in the generating chamber 12 returns to an absorbing chamber 15 again through a throttle valve 17, and the refrigerant-absorbent concentrated solution is diluted and then becomes the refrigerant-absorbent dilute solution.
In this embodiment, because the waste heat source is boiler tail flue gas, has certain impurity, probably produces the corruption to the pipeline, consequently needs to carry out anticorrosion treatment to flue gas import and export pipeline.
One evaporation chamber and one absorption chamber can also be in a group and can be simultaneously arranged in parallel.
The utility model discloses utilize slag tap boiler afterbody flue gas waste heat to prepare cold volume, prepare cold volume through flue gas waste heat refrigeration cycle device, the cold volume that obtains is used for cooling cyclone slag tap water, has both utilized waste heat resource effectively, has reduced boiler exhaust fume heat loss, can make again slag tap water manifold cycles use, has practiced thrift the water resource.
The utility model discloses get up boiler afterbody flue gas utilization, prepare cold volume with flue gas waste heat refrigeration cycle device, reduced boiler exhaust fume heat loss, improved the thermal efficiency of boiler.
The utility model discloses with the cold volume that obtains to the sluicing water that the temperature rises gradually the processing of cooling down, can promote the water recycling number of times of sluicing effectively, the water economy resource.
The utility model discloses not only can guarantee to dash the cinder water and can use under the prerequisite of the normal safe operation of boiler for a long time, the water economy resource has reduced the boiler heat loss of discharging fume simultaneously, has improved boiler efficiency.
The above embodiments are only used for illustrating but not limiting the technical solutions of the present invention, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the present invention may be modified or substituted with equivalents without departing from the spirit and scope of the invention, which should be construed as being limited only by the claims.
Claims (10)
1. Slag flushing water closed cyclic utilization system of slag tapping boiler, including cyclone, the slag melting pond and the granulation water tank that from top to bottom connect gradually and arrange, establish slag flushing water export and slag flushing water entry on the granulation water tank, the flue gas of cyclone discharges its characterized in that through furnace's exhaust port: the slag flushing water circulating pipeline is connected to the upper part of the sedimentation and filtration tank, and the other end of the slag flushing water circulating pipeline is guided to the slag flushing water outlet;
the slag flushing water circulation pipeline is also connected with a flue gas waste heat refrigeration circulation device, and the flue gas waste heat refrigeration circulation device comprises a generation chamber, an absorption chamber, an evaporation chamber and a condensation chamber;
a generation chamber is internally provided with a generation heat exchanger, one end of the generation heat exchanger is connected with the smoke outlet of the hearth, smoke passes through the generation heat exchanger after coming out of the smoke outlet of the hearth, and a cavity of the generation chamber is filled with a refrigerant-absorbent solution;
the top of the generating chamber is connected with a high-pressure refrigeration steam pipeline, the high-pressure refrigeration steam pipeline is connected with a steam inlet of the condensing chamber, a liquid outlet of the condensing chamber is connected with the evaporating chamber through a refrigerant pipeline, and an expansion valve is arranged on the refrigerant pipeline in a matching way;
the evaporation chamber is connected with the slag flushing water circulation pipeline in a heat exchange manner, and a refrigerant-absorbent solution entering the evaporation chamber after passing through the expansion valve absorbs heat of the slag flushing water circulation pipeline to form low-pressure refrigerant steam;
the bottom of the generation chamber is connected with a refrigerant-absorbent concentrated solution conveying pipeline, and the refrigerant-absorbent concentrated solution conveying pipeline is connected with the absorption chamber; the upper part of the evaporation chamber is connected with a gas inlet of the absorption chamber through a low-pressure refrigerant steam channel, the low-pressure refrigerant steam entering the absorption chamber is absorbed by the refrigerant-absorbent concentrated solution to form a refrigerant-absorbent dilute solution in the absorption chamber, and the refrigerant-absorbent dilute solution is conveyed to flow back to the generation chamber through a refrigerant-absorbent dilute solution conveying pipeline.
2. The closed type recycling system for slag flushing water of the slagging tap boiler according to claim 1, characterized in that: the condensation chamber is in heat transfer connection with the generation heat exchanger, and heat collected by the condensation chamber is conveyed to the generation heat exchanger.
3. The closed type recycling system for slag flushing water of the slagging tap boiler according to claim 1, characterized in that: and a solution circulating pump is arranged on the refrigerant-absorbent dilute solution conveying pipeline.
4. The closed type recycling system for slag flushing water of the slagging tap boiler according to claim 1, characterized in that: and a throttling valve is arranged on the refrigerant-absorbent concentrated solution conveying pipeline.
5. The closed type recycling system for slag flushing water of the slagging tap boiler according to claim 1, characterized in that: and a slag flushing water circulating pump is arranged on the slag flushing water circulating pipeline.
6. The closed type recycling system for slag flushing water of the slagging tap boiler according to claim 1, characterized in that: the evaporation chamber and the absorption chamber are positioned in a chamber body, a partition plate is arranged in the chamber body to divide the chamber body into the evaporation chamber and the absorption chamber, and a low-pressure refrigerant steam channel is formed at the upper part of the partition plate.
7. The closed type recycling system for slag flushing water of the slagging tap boiler according to claim 6, characterized in that: and a filtering structure for filtering impurities is arranged at the low-pressure refrigerant steam channel.
8. The closed type recycling system for slag flushing water of the slagging tap boiler according to claim 1, characterized in that: the slag flushing water circulation pipeline is contacted and passed through the wall surface of the evaporation chamber, and the slag flushing water circulation pipeline and the evaporation chamber form contact heat exchange.
9. The closed type recycling system for slag flushing water of the slagging tap boiler according to claim 1, characterized in that: the cyclone comprises a primary air inlet arranged above the cyclone and a secondary air inlet arranged on the wall surface of the cyclone, wherein the primary air inlet is used for carrying pulverized coal particles into the cyclone, and the secondary air inlet tangentially enters the cyclone and is used for supplementing oxygen required by combustion of the pulverized coal particles.
10. The closed type recycling system for slag flushing water of the slagging tap boiler according to claim 1, characterized in that: and a coal economizer is arranged at the smoke outlet of the hearth.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920453269.3U CN209876908U (en) | 2019-04-04 | 2019-04-04 | Closed type cyclic utilization system for slag flushing water of slag tapping boiler |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920453269.3U CN209876908U (en) | 2019-04-04 | 2019-04-04 | Closed type cyclic utilization system for slag flushing water of slag tapping boiler |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109945174A (en) * | 2019-04-04 | 2019-06-28 | 华北水利水电大学 | Wet bottom boiler washing slag water closed cycle utilizes system |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109945174A (en) * | 2019-04-04 | 2019-06-28 | 华北水利水电大学 | Wet bottom boiler washing slag water closed cycle utilizes system |
| CN109945174B (en) * | 2019-04-04 | 2024-02-13 | 华北水利水电大学 | Slag flushing water closed circulation utilization system of liquid slag discharging boiler |
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