CN208687738U - A kind of power generation by waste combustion system - Google Patents
A kind of power generation by waste combustion system Download PDFInfo
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- CN208687738U CN208687738U CN201820534363.7U CN201820534363U CN208687738U CN 208687738 U CN208687738 U CN 208687738U CN 201820534363 U CN201820534363 U CN 201820534363U CN 208687738 U CN208687738 U CN 208687738U
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- flue gas
- power generation
- combustion system
- waste
- waste combustion
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/12—Heat utilisation in combustion or incineration of waste
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Abstract
The utility model provides a kind of power generation by waste combustion system, comprising: danger wastes incinerator is configured to burn danger wastes and generates high-temperature flue gas；Waste heat boiler is configured to the heat working-medium water using the high-temperature flue gas, to generate saturated vapor；Screw expansion motor is configured to the driven generator under the action of saturated vapor and generates electricity.Power generation by waste combustion system provided by the utility model replaces Steam Turbine Driven electrical power generators using screw expansion motor, and Load Regulation ability is strong, reliable for operation, structure is simple.
Description
Technical field
The utility model relates to waste incineration and generating electricity technologies, in particular to a kind of power generation by waste combustion system.
Background technique
Danger wastes refer to the method according to as defined in unification of the motherland identify assert have corrosivity, toxicity, inflammability,
The properties such as reactivity, there is the waste of adverse effect to environment or human health, as hospital clinical waste, refuse battery,
Waste mineral oil etc..Since danger wastes can bring adverse effect to human body, animal and environment, it is therefore desirable to which it is special to carry out to it
Management and disposal process.Danger wastes are subjected to burning disposal, be a kind of reduced training it is most obvious, it is innoxious most thoroughly,
The method for burning the processing danger wastes that heat can efficiently use, thus be widely used.
Danger wastes burning can generate high-temperature flue gas, flue gas be brought out after by waste heat boiler.The waste heat boiler steam
Parameter is lower, is typically below the saturated vapor of 1.5MPa, mainly for the production of with life vapour, for larger danger
Castoff burning treatment plant, steam production have more the factory without external steam supply demand much higher than production and life steam consumption
Steam thermal energy cannot utilize very well, and utilization rate is very low, cause huge waste heat energy waste, while on-site electricity consumption is complete
Portion is originated from outside, increases operating cost.
In order to more preferably utilize its extra steam thermal energy, reduces off-site and draw electricity, people are by introducing steam turbine generator
Group generates saturated vapor driving Turbo-generator Set using waste heat boiler and generates electricity, and the electricity of sending is personal for plant area.But steam turbine one
As be suitable for superheated steam, according to saturated vapor then need setting steam water separator then needed according to superheated steam
Increase superheater, while the requirement using steam turbine to water quality is high, needs preferable water treatment facilities, increases answering for system
Polygamy and cost of water treatment, in addition the load fluctuation of danger wastes incinerator is larger, and steam turbine is very quick to load variations
Sense, not in declared working condition, efficiency will sharply decline, and steam turbine structure is complicated, and 2-3 needs repairing once, and later period maintenance is taken
With higher.
Therefore, it is necessary to a kind of new power generation by waste combustion system be proposed, to solve the above problems.
Utility model content
A series of concept of reduced forms is introduced in utility model content part, this will be in specific embodiment part
Middle further description.The utility model content part of the utility model is not meant to attempt to limit claimed
Technical solution key feature and essential features, do not mean that the guarantor for attempting to determine technical solution claimed more
Protect range.
In order at least be partially solved the above problem, the utility model discloses a kind of power generation by waste combustion system, the burnings
Electricity generation system includes:
Danger wastes incinerator is configured to burn danger wastes and generates high-temperature flue gas；
Waste heat boiler is configured to the heat working-medium water using the high-temperature flue gas, to generate saturated vapor；And
Screw expansion motor is configured to the driven generator under the action of saturated vapor and generates electricity.
Illustratively, the power generation by waste combustion system further includes gas-distributing cylinder, and the gas-distributing cylinder is configured to the saturated vapor
It is divided into first part and second part, wherein the saturated vapor of the first part is used as auxiliary steam, the second part
The saturated vapor enter the screw expansion motor.
Illustratively, the power generation by waste combustion system further includes condenser, and the condenser arrangement is that the condensation screw rod is swollen
The steam discharge of swollen engine, to form condensed water.
Illustratively, the power generation by waste combustion system further includes oxygen-eliminating device, the oxygen-eliminating device be configured to the condensed water into
Row heating deoxygenation.
Illustratively, the power generation by waste combustion system further includes feed pump, and the feed water pump matching is by the condensate pump
Enter the waste heat boiler, to become the working-medium water.
Illustratively, the power generation by waste combustion system further includes chilling tower, and the chilling tower configuration is cooling from the waste heat
The high-temperature flue gas after heat exchange of boiler discharge, and low-temperature flue gas is discharged.
Illustratively, the power generation by waste combustion system further includes flue gas purification device, and the flue gas purification device is configured to take off
Except the harmful components in the low-temperature flue gas, and flue gas up to standard is discharged.
Illustratively, the power generation by waste combustion system further includes air-introduced machine, and the air-introduced machine is configured to the flue gas up to standard
It is sent into chimney and is discharged into atmosphere.
Illustratively, the danger wastes incinerator includes rotary kiln and secondary combustion chamber, and the rotary kiln is used for
The drying, gasification and primary combustion of the danger wastes are carried out, and generates flue gas, the secondary combustion chamber is described for decomposing
Micro-content organism and dioxin in flue gas.
Power generation by waste combustion system provided by the utility model replaces Steam Turbine Driven generator using screw expansion motor
Power generation, Load Regulation ability is strong, reliable for operation, structure is simple.
Detailed description of the invention
The following drawings of the utility model is used to understand the utility model in this as a part of the utility model.Attached drawing
In show the embodiments of the present invention and its description, for explaining the principles of the present invention.
In attached drawing:
Fig. 1 shows the structural schematic diagram of the power generation by waste combustion system according to one embodiment of the utility model.
Description of symbols:
Danger wastes incinerator 1
Waste heat boiler 2
Gas-distributing cylinder 3
Screw expansion motor 4
Generator 5
Condenser 6
Oxygen-eliminating device 7
Feed pump 8
Chilling tower 9
Flue gas purification device 10
Air-introduced machine 11
Chimney 12
Specific embodiment
In the following description, a large amount of concrete details are given more thoroughly to manage in order to provide to the utility model
Solution.It is, however, obvious to a person skilled in the art that the utility model may not need it is one or more of these thin
It saves and is carried out.In other examples, in order to avoid obscuring with the utility model, for more well known in the art
Technical characteristic is not described.
In order to thoroughly understand the utility model, detailed step will be proposed in following description, it is practical to illustrate
The power generation by waste combustion system of novel proposition.Obviously, the execution of the utility model is not limited to those skilled in the art and is familiar with
Specific details.The preferred embodiment of the utility model is described in detail as follows, however other than these detailed descriptions, this is practical new
Type can also have other embodiments.
It should be understood that when the term " comprising " and/or " including " is used in this specification, indicating described in presence
Feature, entirety, step, operation, element and/or component, but do not preclude the presence or addition of other one or more features, entirety,
Step, operation, element, component and/or their combination.
Danger wastes are subjected to burning disposal, be a kind of reduced training it is most obvious, it is innoxious most thoroughly, burn heat can
In the method for the processing danger wastes of effective use, thus it is widely used.The burning process of general danger wastes
In two stages, the first stage carries out in rotary kiln, about 850-1000 DEG C of kiln temperature, is substantially carried out the dry of danger wastes
Dry, gasification and primary combustion；Second stage carries out in dual firing chamber, and flue gas enters dual firing chamber from rotary kiln, at 1100 DEG C
It is stopped at a high temperature of above and is no less than 2s, decompose micro-content organism and dioxin in flue gas sufficiently, it is ensured that entered and burn
The danger wastes full combustion of burning system.Flue gas is by waste heat boiler after dual firing chamber's extraction, and temperature is by original 1100 DEG C
It is down to 500 DEG C above.Above-mentioned waste heat boiler steam parameter is lower, is typically below the saturated vapor of 1.5MPa, is mainly used for giving birth to
It produces and lives and use vapour, for larger danger wastes burning disposal factory, steam production is much higher than production and life vapour
Amount, for the factory without external steam supply demand, the steam thermal energy having more cannot utilize very well, and utilization rate is very low, cause huge
Big waste heat energy waste, while on-site electricity consumption is all originated from outside, increases operating cost.
In order to more preferably utilize its extra steam thermal energy, reduces off-site and draw electricity, people are by introducing steam turbine generator
Group generates saturated vapor driving Turbo-generator Set using waste heat boiler and generates electricity, and the electricity of sending is personal for plant area.But steam turbine one
As be suitable for superheated steam, according to saturated vapor then need setting steam water separator then needed according to superheated steam
Increase superheater, while the requirement using steam turbine to water quality is high, needs preferable water treatment facilities, increases answering for system
Polygamy and cost of water treatment, in addition the load fluctuation of danger wastes incinerator is larger, and steam turbine is very quick to load variations
Sense, not in declared working condition, efficiency will sharply decline, and steam turbine structure is complicated, and 2-3 needs repairing once, and later period maintenance is taken
With higher.
For at least one above-mentioned problem, the utility model provides a kind of power generation by waste combustion system, comprising: danger wastes
Incinerator is configured to burn danger wastes and generates high-temperature flue gas；Waste heat boiler is configured to utilize the high-temperature flue gas
Heat working-medium water, to generate saturated vapor；And screw expansion motor, it is configured under the action of the saturated vapor
Driven generator power generation.Power generation by waste combustion system provided by the utility model replaces Steam Turbine Driven using screw expansion motor
Electrical power generators, Load Regulation ability is strong, reliable for operation, structure is simple.
It is described in detail below with reference to power generation by waste combustion system of the Fig. 1 to one embodiment of the utility model.
As shown in Figure 1, power generation by waste combustion system provided in this embodiment includes danger wastes incinerator 1, waste heat boiler
2, gas-distributing cylinder 3, screw expansion motor 4, generator 5, condenser 6, oxygen-eliminating device 7, feed pump 8, chilling tower 9, gas cleaning dress
Set 10, air-introduced machine 11 and chimney 12.
Wherein, danger wastes incinerator 1 is configured to burn danger wastes and generates high-temperature flue gas.It is described dangerous useless
Gurry refers to properties such as toxicity, inflammability, explosion hazard, corrosivity, chemical reactions, can cause to human health and environment
The waste of harm, such as hospital clinical waste, polychlorinated biphenyl waste, refuse battery, waste mineral oil, mercurous discarded fluorescent lamp
Pipe etc..Danger wastes incinerator 1 specifically includes rotary kiln and secondary combustion chamber.Danger wastes are entered by feed inlet first
Rotary kiln is tentatively gasified in rotary kiln, is burnt, and then uncombusted particulate matter, gas and organic matter enter secondary
Combustion chamber (dual firing chamber) carries out full combustion, while the substances such as dioxin are sufficiently decomposed, and dioxin is in dual firing chamber by quilt
Uniform and stable high temperature is broken to CO completely2、HCl、H2O.Illustratively, the rotary kiln temperature is greater than 850 DEG C, described two
It fires room temperature and is greater than 1100 DEG C.
The rotary kiln includes various downflow type rotary kilns or counter current rotary kiln commonly used in the art.In one embodiment
In, the rotary kiln is downflow type rotary kiln, and wherein danger wastes preheat in kiln, burn and the after-flame stage is more bright
Aobvious, the arrangement of charging, air inlet and auxiliary burner is easy, and convenient operating maintenance is conducive to the charging and preposition processing of waste, together
When gas residence time it is longer.In another embodiment, the rotary kiln be counter current rotary kiln, such rotary kiln can provide compared with
Good gas, solid mixing and contact, heat transfer efficiency is high, can increase its burning velocity.
The high-temperature flue gas being discharged from the secondary combustion chamber of danger wastes incinerator 1 enters in waste heat boiler 2, with working medium
Water exchanges heat, and working-medium water heat absorption is made to flash to saturated vapor.Illustratively, the waste heat boiler 2 is film-type wall-type waste heat pot
Furnace.The saturated vapor generated in waste heat boiler 2 enters screw expansion motor 4, and with the high-temperature flue gas after working-medium water heat exchange from
Waste heat boiler be reduced to after coming out 500 DEG C hereinafter, and being for further processing into chilling tower 9.
In the present embodiment, the saturated vapor initially enters gas-distributing cylinder 3.The gas-distributing cylinder 3 is configured to saturated vapor
Originally it is divided into first part and second part, wherein the saturated vapor of first part is used as auxiliary steam and meets process steam needs, the
The saturated vapor of two parts enters screw expansion motor 4.
Screw expansion motor 4 is configured to the driven generator 5 under the action of the saturated vapor and generates electricity.Specifically, spiral shell
Bar expansion motive power machine 4 is a kind of positive displacement generator, is mainly made using the expansion of hot fluid volume in yin, yang screw rod conduit
With promotion yin, yang screw rod rotates round about, realizes that thermal energy is converted into the work done of mechanical energy.It is swollen that saturated vapor enters screw rod
After swollen engine 4, by dilatation, decompression, expansion, 4 work done of lead-screw expansion motive power machine, and coaxial generator 5 is driven
Power generation, the electric energy that generator 5 generates is personal for plant area, to make full use of extra steam thermal energy, reduces off-site and draws electricity
Amount, reduces operating cost.
Due to screw expansion motor 4 have extensive heat source applicability, can be adapted for superheated steam, saturated vapor,
Steam water interface and shunting body with high salt etc., therefore the utility model does not need superheater and special water treatment facilities, only with
General water treatment facilities, system structure is simpler, and investment is lower, repairs more convenient.
In addition, danger wastes burning load variations fluctuation is larger, and internal efficiency of the steam turbine under non-rated load will
It substantially reduces.In contrast, screw expansion motor 4 used by the utility model heat source load and parameter area (from
10%-120%) change in the case where fluctuating, not only stable and reliable operation but also high efficiency smooth, therefore the utility model is mentioned
The power generation by waste combustion system of confession has very superior variable working condition ability.
The steam discharge for finishing function in screw expansion motor 4 successively passes through condenser 6 and oxygen-eliminating device 7.Wherein, condenser 6
For being condensed the exhaust to form condensed water.In the present embodiment, condenser 6 utilizes cooling water condensation steam, i.e.,
After the steam being discharged from screw expansion motor 4 enters condenser 6, exchanges heat with cooling water, to reduce temperature, be condensed into solidifying
It bears water.Oxygen-eliminating device 7 is used to heat the oxygen removed in condensed water.Then, the condensed water is pumped into waste heat boiler through feed pump 8 again
2 to become working-medium water, and working-medium water carries out the heat exchange cycle of a new round in waste heat boiler 2 with new high-temperature flue gas.
In order to avoid dioxin 200-500 DEG C at a temperature of regenerative response occurs, high-temperature flue gas comes out from waste heat boiler 2
Temperature is reduced to 500 DEG C hereinafter, subsequently entering chilling tower 9 afterwards, and with room temperature water mist contact heat-exchanging, the flue-gas temperature after heat exchange is reduced to
200 DEG C or less.
Later, flue gas enters flue gas purification device 10, and flying dust, sour gas in flue gas are removed in flue gas purification device 10
The harmful components such as body, heavy metal, and the flue gas up to standard for reaching discharge standard is discharged.Illustratively, the flue gas purification device packet
Include set gradually for implement SNCR denitration SNCR device, for implementing semi-dry depickling semidry method reaction tower, be used for
Implement the dry-process deacidification tower of dry-process deacidification cooling, the bag filter for implementing activated carbon adsorption and bag-type dust, be used in fact
Apply the steam-heated steam heater being set between the bag filter and low-temperature SCR device, for implementing low-temperature SCR
The low-temperature SCR device of denitration, the cigarette being set between the low-temperature SCR device and wet scrubbing tower for implementing flue gas heat exchange
Gas smoke gas heat exchanger, the wet scrubbing tower for implementing wet process depickling, and another steam for implementing flue gas removing white haze
Heater etc..Flue gas up to standard is sent into chimney 12 under the swabbing action of air-introduced machine 11, and is discharged into atmosphere.
It continues to refer to figure 1, the illustrative power cycle of power generation by waste combustion system provided in this embodiment are as follows: endanger first
Dangerous waste burns in danger wastes incinerator 1, and danger wastes incinerator 1 is by rotary kiln and second-time burning
Room composition, danger wastes are tentatively gasified in rotary kiln of the kiln temperature greater than 850 DEG C first, are burnt, then unburned
Most particulate matter, gas and organic matter enters secondary combustion chamber of the temperature greater than 1100 DEG C and carries out full combustion, makes simultaneously
The substances such as dioxin sufficiently decompose；The high-temperature flue gas come out from the secondary combustion chamber of danger wastes incinerator 1 enters waste heat
It exchanges heat in boiler 2 with working-medium water, enters gas-distributing cylinder 3 after so that working-medium water heat absorption evaporation is become saturated vapor, into gas-distributing cylinder 3
Saturated vapor a part be used as auxiliary steam meet process steam needs, residual steam enters screw expansion motor 4, through expansion
Hold, decompression, expansion, 4 work done of lead-screw expansion motive power machine, and co-axial generator 5 is driven to generate electricity, it is personal for plant area；
The steam discharge for finishing function enters condenser 6 and is condensed, later using oxygen-eliminating device 7 remove working medium in oxygen, through feed pump 8 by its
Again it is pumped into waste heat boiler 2 and new high-temperature flue gas carries out the heat exchange cycle of a new round；In order to avoid dioxin is at 200-500 DEG C
At a temperature of occur regenerative response, high-temperature flue gas from waste heat boiler 2 come out after temperature be reduced to 500 DEG C hereinafter, subsequently entering urgency
Cold tower 9, with room temperature water mist contact heat-exchanging, the flue-gas temperature after heat exchange is reduced to 200 DEG C hereinafter, entering flue gas purification device later
10, the harmful components such as flying dust, sour gas, the heavy metal in flue gas are removed in flue gas purification device 10 to become cigarette up to standard
Gas, flue gas up to standard are sent into chimney 12 under the swabbing action of air-introduced machine 11 and are discharged into atmosphere.
Power generation by waste combustion system provided by the present embodiment is sent out using screw expansion motor instead of Steam Turbine Driven generator
Electricity, Load Regulation ability is strong, reliable for operation, structure is simple.
Unless otherwise defined, the technology of technical and scientific term used herein and the technical field of the utility model
The normally understood meaning of personnel is identical.Term used herein is intended merely to describe specifically to implement purpose, it is not intended that limit
The utility model processed.Terms such as herein presented " settings " can both indicate that a component was attached directly to another portion
Part can also indicate that a component is attached to another component by middleware.The spy described in one embodiment herein
Sign can be applied in combination another embodiment individually or with other feature, unless this feature is in another embodiment
It is not suitable for or is otherwise noted.
The utility model is illustrated through the foregoing embodiment, but it is to be understood that, above-described embodiment is
Purpose for illustrating and illustrating, and be not intended to limit the invention within the scope of described embodiment.Furthermore ability
Field technique personnel are it is understood that the utility model is not limited to above-described embodiment, and introduction according to the present utility model is also
More kinds of variants and modifications can be made, these variants and modifications all fall within the utility model range claimed with
It is interior.The protection scope of the utility model is defined by the appended claims and their equivalents.
Claims (9)
1. a kind of power generation by waste combustion system, which is characterized in that the power generation by waste combustion system includes:
Danger wastes incinerator is configured to burn danger wastes and generates high-temperature flue gas；
Waste heat boiler is configured to the heat working-medium water using the high-temperature flue gas, to generate saturated vapor；And
Screw expansion motor is configured to the driven generator under the action of saturated vapor and generates electricity.
2. power generation by waste combustion system according to claim 1, which is characterized in that it further include gas-distributing cylinder, the gas-distributing cylinder configuration
For the saturated vapor is divided into first part and second part, wherein the saturated vapor of the first part is used as station-service
The saturated vapor of vapour, the second part enters the screw expansion motor.
3. power generation by waste combustion system according to claim 1, which is characterized in that it further include condenser, the condenser arrangement
For the steam discharge for condensing the screw expansion motor, to form condensed water.
4. power generation by waste combustion system according to claim 3, which is characterized in that it further include oxygen-eliminating device, the oxygen-eliminating device configuration
To carry out heating deoxygenation to the condensed water.
5. power generation by waste combustion system according to claim 3 or 4, which is characterized in that further include feed pump, the feed pump is matched
It is set to and the condensed water is pumped into the waste heat boiler, to become the working-medium water.
6. power generation by waste combustion system according to claim 1, which is characterized in that it further include chilling tower, the chilling tower configuration
To cool down the high-temperature flue gas after heat exchange being discharged from the waste heat boiler, and low-temperature flue gas is discharged.
7. power generation by waste combustion system according to claim 6, which is characterized in that it further include flue gas purification device, the flue gas
Purification device is configured to remove the harmful components in the low-temperature flue gas, and flue gas up to standard is discharged.
8. power generation by waste combustion system according to claim 7, which is characterized in that it further include air-introduced machine, the air-introduced machine configuration
For the flue gas up to standard is sent into chimney and is discharged into atmosphere.
9. power generation by waste combustion system according to claim 1, which is characterized in that the danger wastes incinerator includes back
Rotary kiln and secondary combustion chamber, the rotary kiln are used to carry out the drying, gasification and primary combustion of the danger wastes, and generate
Flue gas, the secondary combustion chamber are used to decompose the micro-content organism and dioxin in the flue gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201820534363.7U CN208687738U (en) | 2018-04-13 | 2018-04-13 | A kind of power generation by waste combustion system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820534363.7U CN208687738U (en) | 2018-04-13 | 2018-04-13 | A kind of power generation by waste combustion system |
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| CN208687738U true CN208687738U (en) | 2019-04-02 |
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ID=65876333
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111964464A (en) * | 2020-08-28 | 2020-11-20 | 焦作市英利经贸有限公司 | Waste heat power generation system of calcining furnace |
| CN117299740A (en) * | 2023-11-30 | 2023-12-29 | 光大环保技术装备（常州）有限公司 | Waste battery recycling system and control method |
-
2018
- 2018-04-13 CN CN201820534363.7U patent/CN208687738U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111964464A (en) * | 2020-08-28 | 2020-11-20 | 焦作市英利经贸有限公司 | Waste heat power generation system of calcining furnace |
| CN117299740A (en) * | 2023-11-30 | 2023-12-29 | 光大环保技术装备（常州）有限公司 | Waste battery recycling system and control method |
| CN117299740B (en) * | 2023-11-30 | 2024-02-06 | 光大环保技术装备（常州）有限公司 | Waste battery recycling system and control method |
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