CN102272525A - Extracting and cooling system for large flows of heavy ashes with efficiency increase - Google Patents
Extracting and cooling system for large flows of heavy ashes with efficiency increase Download PDFInfo
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- CN102272525A CN102272525A CN2009801538432A CN200980153843A CN102272525A CN 102272525 A CN102272525 A CN 102272525A CN 2009801538432 A CN2009801538432 A CN 2009801538432A CN 200980153843 A CN200980153843 A CN 200980153843A CN 102272525 A CN102272525 A CN 102272525A
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- 238000001816 cooling Methods 0.000 title claims abstract description 104
- 239000002956 ash Substances 0.000 title abstract description 73
- 235000002918 Fraxinus excelsior Nutrition 0.000 title abstract description 5
- 238000002485 combustion reaction Methods 0.000 claims abstract description 46
- 239000003517 fume Substances 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000000926 separation method Methods 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims description 33
- 238000000605 extraction Methods 0.000 claims description 21
- 238000002955 isolation Methods 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 8
- 238000011144 upstream manufacturing Methods 0.000 claims description 8
- 230000002411 adverse Effects 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 239000002803 fossil fuel Substances 0.000 claims description 5
- 230000009977 dual effect Effects 0.000 claims description 4
- 239000000284 extract Substances 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000000523 sample Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 2
- 239000004449 solid propellant Substances 0.000 abstract description 3
- 239000003570 air Substances 0.000 description 145
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 16
- 239000003546 flue gas Substances 0.000 description 16
- 230000007704 transition Effects 0.000 description 7
- 230000008901 benefit Effects 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 6
- 239000000498 cooling water Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000003077 lignite Substances 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 238000010079 rubber tapping Methods 0.000 description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 239000012717 electrostatic precipitator Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000002547 anomalous effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 238000011143 downstream manufacturing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000005036 potential barrier Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J1/00—Removing ash, clinker, or slag from combustion chambers
- F23J1/02—Apparatus for removing ash, clinker, or slag from ash-pits, e.g. by employing trucks or conveyors, by employing suction devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2700/00—Ash removal, handling and treatment means; Ash and slag handling in pulverulent fuel furnaces; Ash removal means for incinerators
- F23J2700/001—Ash removal, handling and treatment means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2900/00—Special arrangements for conducting or purifying combustion fumes; Treatment of fumes or ashes
- F23J2900/01002—Cooling of ashes from the combustion chamber by indirect heat exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2900/00—Special arrangements for conducting or purifying combustion fumes; Treatment of fumes or ashes
- F23J2900/01003—Ash crushing means associated with ash removal means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gasification And Melting Of Waste (AREA)
- Processing Of Solid Wastes (AREA)
- Paper (AREA)
- Air Supply (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The present invention relates to a system for extracting and recovering energy for large flows of heavy ashes produced by solid fuel boilers, able to decrease the final temperature of the extracted ash without increasing the air flow entering the boiler flue, usually fixed by the boiler designers at a value around 1.5% of the total combustion air. When the air flow needed to the cooling exceeds the maximum quantity allowable in the boiler, the system allows the exceeding air and the possible vapour to be sent to the air inletting duct entering the air/fume exchanger on the air side, thanks to a separation of the cooling environments made by the ash itself. The separation of the environments of the cooling system is handled automatically based upon a temperature signal of the ash to the discharge from the system.; If the cooling air is not sufficient to cool down the ash, the cooling efficiency can be increased by the addition of nebulised water.
Description
Technical field
The present invention relates to a kind of equipment and method of the heavy ash of big flow that is produced by solid fuel fired boiler being extracted, cools off and reclaims its heat energy.
Background technology
For generating the sustainable growth of the demand of solid fossil fuel is also made dust burdening high coal and the brown coal of burning more and more continually.The burning brown coal can produce the heavy ash of huge amount in high-power boiler, even up to 100 tons/hour, these ashes comprise the unburnt of high percentage usually.Dry type cooling or be mainly the so a large amount of heavy ash of dry type cooling and need extremely many cooling air, or even have high thermal discharge fossil fuel twice or more than three times.
As illustrated among EP0 471 055 B1, some known ashes extract and the dry type cooling device in, the cooling air is in case carrying out being heated under the effect of heat exchange with ash, just in boiler bottom introducing boiler.Therefore, in fact the ash amount of Chan Shenging is big more, and just big more to the recovery of the heat of boiler by cooling air supply in the above described manner, these heats both had been used for carrying out heat exchange with air, were used to make the unburnt burning again.
Yet, be subjected to from the bottom rather than introduce the adverse effect of the air of combustion chamber for fear of efficiency of combustion from burner or from other special-purpose air intake, and/or for fear of to nitrogen oxide (NO
x) generation cause similar undesirable influence, boiler design person would rather be limited in this amount 1.5% maximum of total combustion air.
In view of the foregoing, if the flow of at first described ash is big, unburnt content is higher and therefore temperature is higher, then known cooling system can't or be mainly the dry type cooling and dispose relevant cooling air with effective with economic mode counterweight ash realization dry type cooling.In particular, even there is the people successfully to realize described cooling, energy recovery and disposal, but they also will be with high equipment complexity and thus very high enforcement and handling be used for realizing.
The content of WO2008/023393 by means of referring to mode include this paper in, when it provides the required air mass flow of having extracted when cooling of heavy ash to surpass in the combustion chamber admissible maximum stream flow, the air that exceeds can be delivered to flue, and this pressure separation owing to cooler environment is finished voluntarily by heavy ash.Also in WO2008/023393, the possible position of introducing described excess air is positioned at described pipeline in the upstream of air/fume exchanger or the position in downstream.
The potential system constraint of WO2008/023393 comprise with in loss of the relevant thermal content of the used cooling air in pressure piece-rate system downstream and the increase that comprises the overall flue gas flow that must handle by the device of introducing the downstream, position at air.
In fact, enter at hot-air under the situation in air/fume exchanger downstream, except being increased by the necessary energy that device absorbed of flue gas processing, the thermal content of cooling air is lost fully, and thermal content is transformed into the bulk temperature rising of useless flue gas.
Under hot-air enters situation in the flue of interchanger upstream, because the temperature of cooling air is lower than the temperature of combustion flue gas stream, therefore, the flow that causes entering the thermal current+flue gas of interchanger is able to overall increase, and this reduces the efficient of the surrounding air/flue gas heat exchange of device.
In particular, above-mentioned cooling air can reach about 200 ℃ temperature, therefore and as described in just now, making the cooling air enter temperature is can cause air/fume exchanger uneconomical in general in the about 400 ℃ flue gas, in fact based on the operating principle of air/fume exchanger, increase even enter the thermal content of the air-flow of fume side, this can not be delivered to air, only insignificant part.
In addition, the temperature that flows except handled flue gas totally increases, and the hot-air that enters in the flue (being arranged on interchanger upstream or downstream) makes the electrostatic precipitator that is arranged on air/fume exchanger downstream receive the bulk flow higher than design data.This situation makes the efficient of electrostatic separator because the increase of admission velocity and mainly be because the increase of the resistance of ash and variation.
Summary of the invention
According to illustrated content in the part in front, the technical problem that is proposed and solved by the present invention provides a kind of apparatus and method that can eliminate above-mentioned shortcoming with respect to prior art.
This problem solves by equipment according to claim 1 and method according to claim 22.
In claims, state preferable feature of the present invention according to these contents.
The invention provides the significant advantage that will be fully understood that by means of hereinafter detailed description.
Main advantage is that the present invention makes the recovery maximization of the heat content that is contained in the excessive cooling air used in second environment division in downstream, pressure isolation district.
In fact, the structure of being advised among the present invention entered in the stream of ambient air of having sent into air/fume exchanger the cooling air before entering the combustion chamber.Before entering interchanger, raise, and this structure realizes effectively preheating air with the temperature of the cooling air mixed environment air of heat.This structure makes the efficient of air/flue gas heater almost constant, and this structure can reclaim the heat content of the cooling air of air/flue gas heater.In fact, the present invention can all reclaim the heat content that is obtained by the cooling air in the environment division in downstream, pressure Disengagement zone, and the present invention simultaneously makes the temperature and the flue gas flow of the cooling air that passes electrostatic precipitator constant, thereby its separative efficiency is reduced.
The present invention can also remain on already present advantage in the system of WO2008/023393, promptly obtains the efficient dry type cooling of ash or is mainly the cooling of dry type, and be no more than for 1.5% the above-mentioned limit value that is incorporated into cooling air in the combustion chamber from the bottom.
In fact, the present invention can optimize described system in EP 0 471 055 B1 and WO2008/023393 by the recuperation of heat potentiality that strengthen the counterweight ash under situation about being applied to from the large quantities of heavy ashes of the coal of high-ash content and brown coal.
Detailed description by each embodiment shown in the summary hereinafter, the present invention relates to a kind of heavy grey air of big flow or dual air/water that is used for being produced by solid fuel fired boiler extracts and cooling system, it can reduce the final temperature of the ash that is extracted, and not increasing the air mass flow that enters Boiler smoke tube, this flow is set in about 1.5% of total combustion air amount by boiler design person usually.When the required air mass flow of cooling surpasses when allowing to enter the maximum of boiler, preferably because the separation of the cooler environment that is formed by ash itself, system can make excessive air deliver to the combustion air intake line and also preferably deliver to the secondary air pipeline.
According to the structure of equipment and the load loss of concentrating and distributing that therefore cools off the connecting line of air, the fan that usefully provides a kind of pipeline to promote is to pass to correct thrust the fluid that flows into pipeline.
The overall rising of temperature that enters the surrounding air of interchanger is transformed into the small minimizing of the temperature gap between flue gas and the surrounding air, thereby influences the overall performance of air/flue gas heater in insignificant mode.
Automatically carry out the environment separation of cooling system according to signal at system discharge portion place ash temperature and/or grey flow.
If the cooling lack of air is so that the ash cooling then can improve cooling effectiveness by adding atomized water.Measure the water yield that will add usually according to grey temperature and flow,, thereby obtain to be suitable for the dry ash of pneumatic grinding and transportation at the discharge portion place if needed with the evaporation fully of the water guaranteeing to have sprayed into.
According to preferable structure, advised that the system that uses mainly is made of following:
1. the transition funnel between boiler and the extractor, extractor is the type of theme of having stated among patent EP0 471 055 B1;
2. said extracted device;
3. grey pulverizer;
4. the transition holder between pulverizer and the conveyer-cooler, this holder for example is the funnel form;
5. above-mentioned conveyer-cooler, the shower nozzle that it might be equipped with suitable ploughshare spare and be used to spray water, these ploughshare spares have the function that ash is mixed certainly again at conveyer on one's body;
6. pipe or pipeline, it is used for conveyer-cooler (preferably in the zone of its discharging shell) and is used to make surrounding air to enter connection between the optimal position of system of air/fume exchanger, to eliminate the maximum that surpasses the receivable cooling air of boiler, these pipes or pipeline might be equipped with and be used for making meticulous grey cyclone separator and the control valve of discharging that is included in cooling air stream.
7. the possible fan on the pipeline of above-mentioned pipe promptly at pipeline, is concentrated and the absolute value of the load loss that distributes is higher than under the situation of the low voltage value that is present in the cooling air intake position, and this fan is arranged;
8. terminal tapping equipment, it can be by preventing that simultaneously air from entering system's (for example valve or vibration extraction device or only be the sealing connector that has another transportation or store locking device) uncontrollably and discharging ash;
9. possible ash-water mixer, can not guarantee owing to the anomalous condition (high flow capacity and/or high-temperature) of ash under the grey situation of fully cooling in system, ash-water mixer will replace last 8 terminal tapping equipment to start owing to the actuating of flow diverter, and this blender is equipped with:
-connecting pipe or pipeline, it is used to make humid air to be discharged to the 6th pipe, and
-terminal tapping equipment, the device equivalence of describing among itself and the 8th can make ash discharge from system by preventing that simultaneously extraneous air from entering again;
10. regulate and control system, its can guarantee to realize as this will after various operations described in the part of operating are described.
Description of drawings
Other advantage of the present invention, feature and application model are apparent from the following detailed description of the following preferred embodiment shown in the unrestricted purpose with example.With reference to accompanying drawing, in the accompanying drawing:
-Fig. 1 illustrates the total view of illustration according to the preferred embodiment of equipment of the present invention, and this equipment is in and provides pressure to separate between two cooler environments and second environment division is connected in the operational mode of surrounding air air inlet pipeline of air/flue gas heater;
-Fig. 2 illustrates the schematic longitudinal sectional view of separated region of two cooler environments of Fig. 1 equipment;
-Fig. 3 illustrates the cutaway view according to the A-A line intercepting of Fig. 2;
-Fig. 4 illustrates the general arrangement that illustration Fig. 1 equipment is in the different operational modes of the described separation that two cooler environments are not provided;
-Fig. 5 illustrates along the cutaway view of the successively biaxial blender that is equipped with the nozzle that is used for cooling water of the equipment of Fig. 1 of the B-B line intercepting of this last accompanying drawing; And
-Fig. 6 illustrate illustration Fig. 1 equipment, be in total view of operational mode of the ash of heat still being delivered to the blender of Fig. 5.
The specific embodiment
Referring to above-mentioned each accompanying drawing, be used in solid fossil fuel steam power plant for example type and always indicate according to the equipment that is used to extract of preferred embodiment of the present invention with Reference numeral 1 with the cooling combustion residue.As understanding better in the following description, equipment 1 is particularly suited for handling for example by the coal of high ash content or the heavy ash of big flow of brown coal burning generation.
In order to be illustrated more clearly in, be described until disposing path that residue defers to different parts with reference to the extraction of combustion residue bottom of (or boiler) 100 below equipment 1 from the combustion chamber.
In the combustion chamber 100 or be more preferably the downstream of its transition funnel 105, equipment 1 provides first to extract and/or delivery unit the dry extractor 9 that especially mainly is made of steel with high thermal resistance.Described extractor 9 is known type itself, and for example is being described among the EP0 252 967, this patent by means of referring to mode include this paper in.Extractor 9 is collected the heavy ash that deposits in the combustion chamber 100 downwards by above-mentioned transition funnel 105.
Extractor 9 has in the side-walls of itself housing and is used to a plurality of holes that cooled external air is entered, these holes along the stretching, extension (direction) of extractor 9 itself with basically uniformly mode distribute, and each hole is marked with Reference numeral 10.These inlets 10 can be equipped with and be used to regulate the device of flow or can make inlet work or do not work.In addition, extractor 9 can have additional cooled external air inlet 19, preferably also regulates and be arranged on basically the terminal part office of extractor 9 itself by the flow regulator of automatic valve or equivalence.
The cooling air be inhaled into via the inlets 10 and 19 in the extractor 9 and the effect of the low pressure that combustion chamber 100 in, exists under with respect to the grey adverse current of transporting.In more detail, air is owing to the low pressure that exists in the transition funnel 105 enters, and in funnel bottom the low pressure of regulating by the control system of combustion chamber 100 (under atmospheric pressure generally about 300-500Pa) arranged.
Ash is fed to pulverizer 3 in the downstream of extractor 9, and this pulverizer is with the most coarse part crushing of ash, thus the increase heat exchange surface, and therefore improve the efficient of this heat exchange and the efficient of therefore improving cooling procedure.
Be provided with the additional cooled external air inlet that indicates with 17 in the downstream of pulverizer 3, under the situation that is equipped with this addition entry point 17, also be provided with flow regulator, as already described.In this case, adverse current is passed pulverizer 3 itself and is presented air from inlet 17 along first extractor 9 under the low pressure effect that also exists in combustion chamber 100.This cooling air not only is used for the cooling ash but also is used to cool off machine.
As being shown in further detail in Fig. 2 and 3,, ash is delivered to second steel band conveyer-cooler 6 by means of funnel/holder 8 in the downstream of pulverizer 3.As after this will illustrating in greater detail, under the condition of determining, the structure of described equipment can operate funnel 8 as holder, thereby two kinds of atmosphere that ash is gathered to guarantee extractor 9 and conveyer-cooler 6 separate.Specifically, owing to there be this gathering, conveyer 6 is by continuously operation and appropriately operating as second extractor under material head, this guarantee the extractor related with the pressure-speed of combustion chamber 100 environment and with and the environment of the conveyer/cooler of the different pressures velocity correlation in the zone of its connection between separate.Sensor 7 with the 7 minimum and maximum ash positions that indicate is also related with funnel 8 with layer leveller 18, and this layer leveller is arranged on the initial portion office that enters conveyer 6.
With the belt speed of conveyor cooler 6 indication associated, provide information by the indicated position of layer controller 18 about grey volume flow, this information can indicate one to be used from the adjusting cooling fluid with temperature.
On conveyer 6, ash continues to be cooled from outside inhaled air by means of the addition entry point 11 on the sidewall that is arranged on extractor 6 itself to be similar to mode that first extractor 9 illustrated, and it has similarly and is equal to 19 additional external cooling air intake, and the initial part office of conveyer 6 itself is preferably also regulated and be arranged on basically to this inlet by the flow regulator of automatic valve or equivalence.
When needed, can on conveyer 6, cool off by water by means of the distributing nozzle 12 meticulous meterings of the lid inside that is arranged on conveyer 6.
At this moment, be to be understood that equipment 1 can be equipped with dual air/water cooling system, especially by air intake 10,11,17 and 19 and join nozzle 12 by moisture and implement.
Equipment 1 also be provided for with the combustion residue heat exchange after heated cooling part of air be fed to the related surrounding air discharge tube 50 of air/fume exchanger 102 in device.In the present embodiment, described feeding means comprises the suitably pipeline 51 of heat insulation and hot tracking to avoid condensate, its be suitable for by means of the automatic valve 150 (or equivalent device) that is provided with along its stretching, extension (direction) optionally regulate and block/open.
In more detail, pipeline 51 make the discharge areas (Fig. 1) of conveyer 6 and/or under the situation of blender 2 (Fig. 6) connect (or preferably being suitable for connecting) to air/fume exchanger together with the suction of secondary surrounding air zone.Therefore, pipeline 51 preferably flows out to air/fume exchanger 102 (air side) in the line upstream that is associated with the secondary air fan 54 that surrounding air is entered, and air/fume exchanger is suitable for combustion air is preheated and is arranged on usually in the combustion apparatus relevant with the present invention.As known ground, this zone that enters has by above-mentioned air fan 54 or by being used for the negative pressure that pressure controlled equivalent device provides.
Be higher than at the load loss of concentrating and distributing of cooling air under the situation of the low pressure that has in the in-position on the pipeline of fan 54 upstreams or the low pressure in the pressure head that this in-position has, on the pipeline of pipeline 51, also fan 56 can be arranged.
In general, the best in-position of cooling air is represented that by the intake line of combustion air fan air fan obtains air and air is delivered to air/fume exchanger from environment.If as among Fig. 1, interchanger is to have the three fens types that are respectively two inlets of 61 and 62 (being divided into main and secondary) and are exclusively used in an inlet of flue gas that are exclusively used in combustion air, and then the intake line by secondary air monitors and is used to optimum position that the cooling air is entered as described.In fact, described position is preferable with respect to the intake line of primary air fan 58, and this is because the stress level of main fan 58 is more high than the secondary fan, and therefore the energy loss when pump is inhaled is also bigger.
Do not allow to be connected at equipment structure under the situation of intake line of secondary air fan, can select blast main, even and this with lesser extent, the advantage about recuperation of heat also is provided.
Make the air that enters that makes fan always handle same amount that is also advantageous in that the cooling air of fan (main fan 58 or secondary fan 54) upstream enters, and therefore do not moved the influence of variation.
In an embodiment who substitutes, the cooling air can directly be sent into air/fume exchanger 102 in air side.
Owing to there is special mixing arrangement again, especially with respect to the conveyor belt 6 cardinal principle tapered members 14 of fixing and having the ploughshare shape in the present embodiment own, therefore, ash cools off on conveyer 6 more efficiently.Described ploughshare-like members 14 along the stretching, extension (direction) of conveyer 6 with basically uniformly mode distribute, and these members are arranged on the Department of Transportation office of ash.As mentioned above, ploughshare-like members 14 is carried out ploughing by mixing continuously in the process of transporting on tape to ash again, by exposing ash like this and cooling off the maximum usable area that air and/or cooling water carry out heat exchange.
Be provided with automatic flow divider 16 (or be used for equivalent device that grey stream is departed from) in the downstream of conveyer 6, this automatic flow divider can be fed to chilled ash tapping equipment 13 or continuous mixing device 2 outwardly selectively, and blender also outwards is communicated with in this example and illustrates in greater detail in Fig. 5.
If necessary, there is the blender 2 of water can finish grey cooling,, perhaps gives grey humidification to reduce the dust emission under some transportation and disposal situation to reach and the matched temperature value of downstream process.Blender 2 is equipped with discharging shell 21, and this discharging shell is equipped with and can returns the device that ash is discharged from system uncontrollably by preventing extraneous air simultaneously.This device can be for example by having dual-active door (clapet) valve or being made of rubber slab, and when being out of shape under the gravity effect at ash, device can be discharged in the required smallest passage part ash.
According to a preferred embodiment modification, be provided with the pipe 66 that makes blender 2 be connected to pipeline 51, so that air and steam enter in the pipeline by the equivalent device on valve 59 or the pipeline.
Secondly, equipment 1 comprises temperature and/or the volume sensor and/or the mass flow sensor of ash, and these sensors are arranged on the end portion of conveyer 6 or discharge portion office and/or the main extractor 9 in this example or more preferably are arranged on the grey discharge portion place at conveyer 13 places.Advantageously, also be provided with the sensor of the above-mentioned type at funnel/holder 8 places.
Also be provided with load cell or equivalent device at this funnel 8 places and control ash position in funnel/holder.
In addition, also can temp sensor device be set at pipeline 51 places.
Equipment 1 comprises control system, and this control system is communicated by letter with described sensor device and is suitable for the operational mode of coming control appliance 1 according to ash amount and grey temperature.
Now illustrate in greater detail the operational mode of operational mode, especially its cooling system of the equipment of controlling by above-mentioned control device 1.
At first, grey temperature that will be provided by sensor device by control system and/or flow value and the pre-if value that stores are made comparisons, and determine the operational mode that the most suitable equipment 1 moves according to the result of this comparison.About carrying out the needs of temperature and/or flow measurement, should be noticed that the increase of the temperature of ash is usually relevant with the increase of grey flow in the equipment of considering 1 here.
By regulating all air intake valves 10,11,17 and 19 and make the equipment that is in the incipient stage be configured to the pattern shown in Fig. 4, to suck 1.5% total air corresponding to combustion air by in extractor 9 and conveyer 6, all passing the bottom flue of realizing via the funnel 105 of boiler 100 with grey adverse current by closing automatic valve 150.
The grey temperature that this operational mode proceeds to the discharge portion place of conveyer 6 reaches predetermined value T
MinimumTill.
In this operational mode, control device acts on the relative velocity of extractor 9 band and conveyer 6 bands, basically by so making conveyer 6 have grey potential barrier greater than extractor 9, thereby avoids formation material head in funnel 8.
As exceedance T
MinimumThe time, systemic effect is in the speed of conveyer 6, specifically be by reducing and regulating this speed and gather to determine the ash in funnel 8, therefore and form continuous ash plug, and also the valve 150 of opening conduits 51 with two kinds of different atmosphere of formation in extractor 9 and conveyer 6 respectively, first atmosphere is connected to the pressure that exists in the boiler, and second atmosphere is connected to the pressure that exists in the surrounding air feed conduit 51.
Under described operational mode, the air intake valve 10,19 and 17 of extractor 9 and funnel 8 automatically adjusts with 1.5% of the total amount of only concentrating the cooling air that can introduce boiler in extractor, and reach desirable cooling if desired, can be by at first increasing nozzle 12 that air come control valve 11 and regulate conveyer 6 if possible in succession up to the percent value of calculating, the operation of air downstream/fume exchanger and follow-up operation to water are not exerted an influence.In this, should be noticed that for the selected position that the cooling air is entered, fan 54 is total handles identical air quality, when the cooling air that increases through piping 51, inhaled air will reduce from environment.
In described environment separation structure, pass this extractor by means of inlet 10,17 and 19 cooling air inversions that introduce, that act on main extractor 9, and in 1.5% limits, enter combustion chamber 100.Surpass 1.5% cooling air and be equal to 19 of conveyer 6 via inlet 11 and (if existence) and obtain from the outside, and the following current of cooling air pass 19 and by by fan 54 and as the low pressure that might produce by the force(d) (draft) fan on the pipeline that is positioned at pipeline 51 (supporting fan) 56 via pipeline 51 together with since the steam that the part cooling of possible water produces be inhaled into.
Like this, obtain the burning of extractor 9 by relevant energy being turned back to boiler, and obtain conveyer 6 with going up maximum cooling by reducing to minimum cooling water intervention with the maximum possible that goes up possibility unburned material.
Example goes out this operational mode among Fig. 1.
Exist under the situation of above-mentioned grey pressure head, avoiding the emptying of charging hopper 8 by the speed of controlling conveyer 6 according to the probe value of minimum and maximum grey sensor 7.Especially,, till then making conveyer 6 slow to conveyer 6 to stop, and when surpassing minimum ash position, reset conveyer 6, and when reaching maximum ash position, increase the belt speed of conveyer 6 and so increase the flow that conveyer 6 is with if ash position reaches minimum of a value.
In the structure of this consideration, control device can have the available additional information that detects by the sensor special device, especially about the information of the pace of grey temperature in the funnel 8 and conveyer 6.The information of the pace of conveyer 6 limits the volume flow of ash exactly together with (fixing) value of extracting part.Must be pointed out that for fear of extracting possible obstruction in the part itself, extracting the ash position must be than the suitable surplus height of the grey piece size of coming out from pulverizer 3.
In addition, in the illustrated other operational mode of Fig. 6, equipment 1 also can be under the situation of very high grey flows/temperatures (even be higher than design load, and for example depend on fuel type or because the clean operation of combustion chamber 100) operation.In this case, suppose that wherein grey temperature is higher than T
Very highValue, equipment 1 provides and is similar to last described operational mode, and is discharged into blender 2 rather than conveyer 13 by means of the flow divider 16 still ash of heat.
In blender 2, additional water flowing rate can be introduced so that ash reaches the final temperature (being generally about 80 ℃) of defined and has suitable water capacity (preferably about 10%) to guarantee not having dust in motor performance subsequently.
For fear of rising to conveyer 6 (risk that produces condensate is arranged) again, can between conveyer 6, blender 2 and pipeline 51, directly be provided with " Y " shape connector owing in blender 2, carry out the steam of this cooling generation.Because this structure, produced the steam in the blender 2 and advanced by adding towards the pipeline that is connected flue gas pipeline from the air of conveyer-cooler 6 and presumable steam.This connecting pipe (between blender 2 and trunk line 51) still has the risk of condensing, if design condition feels to form the risk of condensate and relevant grey hard scale, then suitably heats this pipeline.
Should be appreciated that the amount of predetermined combustion air or the described predetermined value of temperature and/or flow can optionally be set by the operator of operating equipment 1.
Should be appreciated that in addition previous described operational mode only is a kind of in the various possibilities of operating equipment 1.Better simply operational mode for example can be stipulated, forms grey pressure head when reaching predetermined temperature value, and by suitably adjusting the flow of the empty G﹠W of cooling (words of water if desired) remainder is handled.
By means of a kind of like this PIAPACS similar a series of operational modes of operational mode artificial or that be provided with and considered up to now automatically, this system can be according to the temperature/flow value of ash, and the refrigerating mode of ash itself is determined in the formation by acting on separated region, the startup that acts on the air-flow that enters extractor 9 and conveyer 6, acts on the metering of possible atomized water and act on flow divider.
Therefore usually, should be appreciated that at this equipment 1 has overall operational flexibility, and have the ability of any ash stream of actual treatment, and this is not and introduce the relevant problem of excessive cooling air from boiler 100 bottoms.As mentioned above, by introducing even very high cooling air delivery and by making the additional air stream that is unsuitable for from boiler bottom is introduced in the surrounding air admission line be fed to air/fume exchanger and realize this flexibility by means of the possibility that increases cooling water if needed.
About last this aspect, preferably equipment 1 can measure the water yield of use fully by its control device, so that its evaporation fully in cooling procedure, and obtain subsequently in the exit of conveyer 6 be basically do, be applicable to the dry ash of milling automatically and transporting.This can by make the ash final temperature remain on 100 ℃ with on realize.The current that atomize and spray will be controlled by means of thermal balance, and this thermal balance is the heat (the variation stream of the specific enthalpy that needs between temperature in the funnel 8 and the discharging final temperature multiplies each other) that will remove from ash on the one hand and equate by cooling off the enthalpy change that air is subjected to and the summation of water heat of evaporation on the other hand.
It should also be understood that, the ducted cooling part of air of ambient air inlet is delivered to air/fume exchanger make the recuperation of heat relevant maximize, thereby emphasize and relevant and feature performance benefit that in above-mentioned patent EP0 471 055B1, stated in this used dry extractor with the cooling air.
The existence that it is also understood that ploughshare shape member or its equivalent device can make the temperature of ash even together with optionally start water-cooled possibility by nozzle 12.
Further, it is to be appreciated that, be arranged on the temperature sensor at pipeline 51 places, except control appliance parameter more completely, can also check at whole pipe 51 places owing to be derived from the formation of possible condensate of the steam of cooling water.In fact, the temperature of known air itself and the atomizing water yield make and can calculate the relevant humidity of cooling air easily and it is tested:
On the one hand humidity itself is lower than 100% and have a suitable effective margin; And
On the other hand, even in the possible cold spot that (and mainly covering on the surface with connecting pipe 51 at conveyer 6) exists in the path, airborne water content can not begin to form may be to the bothersome condensation of the operation of better systems.
Additional connecting pipe (or equivalent device) can be set between near the conveyer 6 transition funnel 105 and the funnel 8, by optionally moving the extraneous air inlet on this pipeline and being provided for regulating from the thermal air current of transition funnel 105 and the valve of cold environment air stream, to avoid forming in the system any risk of condensate.This can be elevated to intrasystem air themperature can eliminate the value that condensate forms risk.Then, can come the thermal air current and the cold air stream that enter are regulated as described above according to the result of detection that is positioned at the said temperature sensor on the pipeline 51.
Should be appreciated that the separation that also can obtain aforesaid two environment at last by the device that is different from said apparatus.For example, attachment device such as valve or equivalent device can be set between extractor 9 and conveyer 6, also can be by below funnel/holder 8, applying second crushing stage that has changeable flow with respect to pulverizer 3, in funnel, producing the grey pressure head of the necessity be suitable for making environment separation, thereby realize the separation of two environment.
Should be appreciated that the present invention can reclaim efficiently from making maximum extraneous air flow deliver to extractor 9 and making energy that air capacity (because having increased water) on second extractor 6 obtains significantly reducing and the therefore necessary energy of smoke treatment.
The present invention also aims to a kind of method that weighs the energy of ash with reference to the so far described extraction of equipment 1, cooling and recovery.
So far, invention has been described with reference to preferred embodiment.This means also there is other embodiment that belongs to core content of the present invention that they all are included within the protection domain of claims of the following stated.
Claims (41)
1. one kind is used for the counterweight ash, and in particular for coming from the equipment (1) that the heavy ash of the big flow of solid fossil fuel in the production capacity equipment for example extracted, cools off and reclaimed heat energy, described equipment is the type that is suitable for related use with the combustion chamber, and described equipment comprises:
(a) be used for extraction and transportation device (9,6) from the heavy ash of described combustion chamber (100);
(b) cooling system (10,11,19,17,12), described cooling system is used to cool off described heavy ash, and be arranged on described extraction and conveying arrangement (9,6) locate and be suitable for determining the presenting of cooling air at described extraction and conveying arrangement place, general layout becomes to make at least a portion of described cooling air can be introduced into described combustion chamber (100) from the bottom of described combustion chamber;
(c) pressure seal (8), described pressure separator is suitable for determining described extraction and conveying arrangement (9,6) separation of atmosphere between first environment (9) and the second environment (6), described first environment (9) is connected to the described atmosphere of described combustion chamber (100), and described second environment (6) can be connected to the air intake pipe (50,57) of air/fume exchanger (102) or the air intake of described air/fume exchanger;
(d) be used for described cooling part of air is fed to the device (51) of the described inlet of the described air intake pipe (50,57) of described air/fume exchanger (102) or described air/fume exchanger (102);
(e) control device, described control device are suitable for determining according to the temperature of described ash and/or flow the startup of the described pressure isolation of environment.
2. equipment as claimed in claim 1 (1) is characterized in that, described cooling system (10,11,17,19,12) is dual air-water type, and described control device is suitable for determining described water-cooled startup according to the described temperature and/or the flow of described heavy ash.
3. each described equipment (1) in the claim as described above, it is characterized in that, described general layout is arranged under the described pressure separate condition of environment (9,6), described cooling system (10,11,17,19,12) be suitable for use in determining in the described first environment (9) with the mobile adverse current of heavy ash in described second environment (6) and the presenting of the cooling air of the mobile following current of heavy ash.
4. each described equipment (1) in the claim as described above is characterized in that, described control device comprises temperature and/or the flow sensor that is arranged on the described heavy ash that described extraction and conveying arrangement (9,6,13) and/or described pressure isolation zone (8) locate.
5. as the described equipment of last claim (1), it is characterized in that the described temperature of described heavy ash and/or flow sensor are arranged on the stub area place of described extraction and conveying arrangement (6,13).
6. as the described equipment of last claim (1), it is characterized in that described temperature and/or flow sensor are arranged on the described discharge portion place of described heavy ash.
7. each described equipment (1) in the claim as described above is characterized in that, described control device comprises and is arranged on the load cell that described pressure isolation zone (8) is located.
8. each described equipment (1) in the claim as described above, it is characterized in that, described control device is suitable for determining environment (9,6) described separation, make the cooling air stream that enters described combustion chamber (100) from described bottom be no more than the scheduled volume of total combustion air, preferably equal about 1.0-1.5% of described total combustion air.
9. each described equipment (1) in the claim as described above is characterized in that described feeding means (51) is suitable in the downstream of described cooling procedure described air intake pipe (50,57) being connected to described second environment (6) basically.
10. each described equipment (1) in the claim as described above is characterized in that described feeding means (51) flows out in the described air intake pipe (50,57) in the fan that is used to increase air pressure head (54,58) upstream.
11., it is characterized in that described feeding means (51) flows out in the described air intake pipe (50) in secondary air fan (54) upstream as the described equipment of last claim (1).
12. each described equipment (1) in the claim as described above, it is characterized in that, comprise that being arranged on described feeding means (51) locates, is used for to regulate the device (150) of introducing the air mass flow of described air intake pipe (50,57) from described feeding means (51).
13. each described equipment (1) in the claim as described above, it is characterized in that, described pressure seal comprises the device (150) that is used to block/open described feeding means (51), the described device (150) that is used to block/open described feeding means is controlled to determine described environment separation (9,6) when needed by described control device.
14. each described equipment (1) in the claim is characterized in that as described above, described control device comprises and is arranged on one or more temperature sensors that described feeding means (51) is located.
15. each described equipment (1) in the claim as described above, it is characterized in that, described extraction and conveying arrangement comprise and are arranged on or are suitable for being arranged on first extraction unit (9) in back to back downstream, described combustion chamber (100) and are arranged on second delivery unit (6) in described first extraction unit (9) downstream, and the pressure that described pressure seal (8) is suitable for producing between described first extraction and second delivery unit (9,6) separates.
16., it is characterized in that described control device is suitable for controlling the speed of at least one unit in described extraction and the delivery unit (9,6) as claim 14 or 15 described equipment (1).
17. each described equipment (1) in the claim as described above, it is characterized in that, described pressure seal (8) comprises the device that is suitable for forming heavy grey pressure head between described two environment (9,6), and described pressure seal is suitable for determining that the described pressure of described two environment separates.
18., it is characterized in that described pressure seal comprises the storage device (8) that is suitable for receiving the heavy ash that forms described pressure head as the described equipment of last claim (1).
19., it is characterized in that described pressure seal comprises the funnel (8) that is suitable for receiving the heavy ash that forms described pressure head as the described equipment of last claim (1).
20., it is characterized in that described control device comprises the one or more grey level sensor (7) that is arranged on described pressure head place as each described equipment (1) in the claim 17 to 19.
21. each described equipment (1) in the claim as described above, it is characterized in that, comprise discharging place that is arranged on described heavy ash and be suitable for finishing described heavy ash cooling procedure be used to mix the device (2) of heavy ash and be used for device that cooling air and possible steam from described mixing arrangement (2) are fed to described feeding means (51).
22. one kind is used to extract and cools off heavy ash from the combustion chamber, especially comes from the method for the heavy ash of big flow of the fossil fuel in the production capacity system for example, said method comprising the steps of:
(a) extract described heavy ash from described combustion chamber (100,105);
(b) pass through along described extraction and transportation route (9,6,13) present the cooling air and cool off this heavy ash along described path, thus in described cooling procedure downstream with at least a portion of described air from described combustion chamber (100,105) described combustion chamber (100,105) is introduced in described bottom;
(c) according to the described temperature and/or the flow of described heavy ash, optionally start along described extraction and the first environment (9) of transportation route setting and the pressure isolation between the second environment (6), described first environment (9) is arranged on described combustion chamber (100,105) back to back downstream, and described second environment (6) is arranged on the downstream of described first environment (6) and be suitable for being connected to air intake pipe (50,57) in air/fume exchanger (102) or the air intake of described air/fume exchanger;
(d), described cooling part of air is fed to the described air intake pipe (50,57) in described air/fume exchanger (102) or the described air intake of described air/fume exchanger (102) according to the described temperature and/or the flow of described heavy ash.
23. as the described method of last claim, it is characterized in that described cooling stage (b) is dual air-water type and starts described water cooling according to the described temperature of described heavy ash and/or amount.
24., it is characterized in that the described stage (b) is provided at described second environment (6) place and states water-cooled startup as claim 22 or 23 described methods.
25. as each described method in the claim 22 to 24, it is characterized in that, described cooling stage (b) is at environment (9,6) be provided in the described first environment (9) the mobile adverse current with heavy ash under the described pressure separate condition, and described second environment (6) in the presenting of the cooling air of heavy grey mobile following current.
26. as each described method in the claim 22 to 25, it is characterized in that, be provided at the described temperature of the described heavy ash of locating to realize in described extraction and transportation route (9,6,13) and/or described pressure isolation zone (8) and/or the detection of flow.
27. as the described method of last claim, it is characterized in that, realize the temperature of described heavy ash and/or the described detection of flow at the stub area place of described extraction and conveying arrangement (6,13).
28. as the described method of last claim, it is characterized in that, implement described temperature and/or traffic probe at the discharge portion place of described heavy ash.
29. as each described method in the claim 22 to 28, it is characterized in that, be provided at the load sensing that described pressure isolation zone (8) is located to implement.
30. as each described method in the claim 22 to 29, it is characterized in that, the described stage (c) provides the described environment separation (9 that will implement, 6), the cooling air delivery that makes cooling enter the air of described combustion chamber (100) from described bottom is no more than the scheduled volume of total combustion air, preferably equals the 1.0-1.5% of described total combustion air.
31. as each described method in the claim 22 to 30, it is characterized in that, from described the presenting in the described second environment (6) in described cooling procedure downstream begins to proceed to described air intake pipe (5) described air/fume exchanger (102) basically.
32. as each described method in the claim 22 to 31, it is characterized in that, arrive the described air intake pipe (50 in described air/fume exchanger (102), 57) Nei described presenting is provided at the fan (54 that is used to increase air pressure head, 58) swim over to the stream that goes out in the described pipeline (50,57) on.
33. as the described method of last claim, it is characterized in that, described in the described air intake pipe (50) in described air/fume exchanger (102) present be provided at secondary fan (54) on swim over to go out to flow in the described pipeline (50).
34. as each described method in the claim 22 to 33, it is characterized in that, provide being fed in the air intake pipe (50,57) in described air/fume exchanger (102) or the adjusting of the air mass flow in the described air intake of described air/fume exchanger.
35. as each described method in the claim 22 to 34, it is characterized in that, the described stage (c) provides by means of presenting in the air intake pipe (50,57) of blocking-up/unlatching cooling air in described air/fume exchanger (102) or in the described air intake of described air/fume exchanger and obtains described pressure isolation.
36. as each described method in the claim 22 to 35, it is characterized in that, be provided in the air intake pipe (50,57) that is suitable for being implemented in described air/fume exchanger (102) or temperature that the described device of presenting (51) in the described air intake of described air/fume exchanger is located to implement is surveyed.
37. as each described method in the claim 22 to 36, it is characterized in that, described extraction and transportation route comprise and be arranged on second transport section (6) that first of back to back downstream, described combustion chamber (100) is extracted part (9) and is arranged in described first (9) downstream, and the described stage (c) makes and extracts the described pressure isolation of acquisition between part (9) and second transport section (6) described first.
38., it is characterized in that the described stage (c) provides along the described extraction of the described ash in described path and/or the control of travelling speed as claim 36 or 37 described methods.
39., it is characterized in that the described stage (c) is provided at the formation of heavy grey pressure head between described two environment (9,6) as each described method in the claim 22 to 38, the described stage is suitable for determining that the described pressure of described two environment separates.
40., it is characterized in that the described stage (c) provides the described ash position of described pressure head to survey as the described method of last claim.
41. as each described method in the claim 22 to 40, it is characterized in that, be provided at heavy grey discharging place and carry out and be suitable for finishing the mixing of described heavy ash of the cooling procedure of described heavy ash, and provide by in described air intake pipe (50,57), carrying out presenting of the used or cooling air that produces of described mixing and possible steam.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITRM2008A000662A IT1392240B1 (en) | 2008-12-12 | 2008-12-12 | EXTRACTION AND COOLING SYSTEM FOR LARGE RANGE OF HEAVY ASHES WITH EFFICIENCY INCREASE. |
| ITRM2008A000662 | 2008-12-12 | ||
| PCT/IB2009/055604 WO2010067312A2 (en) | 2008-12-12 | 2009-12-09 | Extracting and cooling system for large flows of heavy ashes with efficiency increase |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102272525A true CN102272525A (en) | 2011-12-07 |
Family
ID=41254621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009801538432A Pending CN102272525A (en) | 2008-12-12 | 2009-12-09 | Extracting and cooling system for large flows of heavy ashes with efficiency increase |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US20110297061A1 (en) |
| EP (1) | EP2368070A2 (en) |
| JP (1) | JP2012511692A (en) |
| KR (1) | KR20110106362A (en) |
| CN (1) | CN102272525A (en) |
| AR (1) | AR076449A1 (en) |
| AU (1) | AU2009325882A1 (en) |
| BR (1) | BRPI0923347A2 (en) |
| CA (1) | CA2746849A1 (en) |
| EA (1) | EA201100940A1 (en) |
| IT (1) | IT1392240B1 (en) |
| MX (1) | MX2011006263A (en) |
| WO (1) | WO2010067312A2 (en) |
| ZA (1) | ZA201104340B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112138776A (en) * | 2019-06-28 | 2020-12-29 | 三菱动力株式会社 | Grinding device, boiler system and method for operating grinding device |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010033307A1 (en) * | 2010-08-04 | 2012-02-09 | Clyde Bergemann Drycon Gmbh | Apparatus and method for post-burning hot material on a conveyor |
| CN102287814B (en) * | 2011-09-01 | 2013-06-05 | 中国华能集团清洁能源技术研究院有限公司 | Two-stage wind-water joint cooling scraper-type cold slag conveyer |
| US11135547B1 (en) * | 2012-11-09 | 2021-10-05 | Arkansas State University—Jonesboro | Air cooled condensing heat exchanger system with acid condensate neutralizer |
| CN105953222A (en) * | 2016-05-10 | 2016-09-21 | 钱伟 | Solid material energy comprehensive recovery system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1241408B (en) | 1990-03-02 | 1994-01-14 | Mario Magaldi | HEAVY ASH DISCHARGE SYSTEM FROM BOILERS FOR STEAM PRODUCTION |
| IT1276747B1 (en) * | 1995-06-19 | 1997-11-03 | Magaldi Ricerche & Brevetti | BULK MATERIALS EXTRACTOR / COOLER |
| ITMI20041371A1 (en) * | 2004-07-09 | 2004-10-09 | Magaldi Power Spa | INTEGRATED HEAVY ASH EXTRACTION SYSTEM TRANSFORMATION OF THEMSELVES INTO LIGHT ASH AND REDUCTION OF INCOMBUSTS |
| JP2010501822A (en) * | 2006-08-22 | 2010-01-21 | マガルディ パワー ソシエタ ペル アチオニ | Cooling system for dry extraction of heavy ash from boilers |
| AU2006347454A1 (en) * | 2006-08-22 | 2008-02-28 | Magaldi Power S.P.A. | Extraction and air/water cooling system for large quantities of heavy ashes |
-
2008
- 2008-12-12 IT ITRM2008A000662A patent/IT1392240B1/en active
-
2009
- 2009-12-09 EA EA201100940A patent/EA201100940A1/en unknown
- 2009-12-09 CN CN2009801538432A patent/CN102272525A/en active Pending
- 2009-12-09 WO PCT/IB2009/055604 patent/WO2010067312A2/en active Application Filing
- 2009-12-09 MX MX2011006263A patent/MX2011006263A/en not_active Application Discontinuation
- 2009-12-09 BR BRPI0923347A patent/BRPI0923347A2/en not_active IP Right Cessation
- 2009-12-09 JP JP2011540308A patent/JP2012511692A/en active Pending
- 2009-12-09 CA CA2746849A patent/CA2746849A1/en not_active Abandoned
- 2009-12-09 EP EP09801556A patent/EP2368070A2/en not_active Withdrawn
- 2009-12-09 US US13/139,134 patent/US20110297061A1/en not_active Abandoned
- 2009-12-09 AU AU2009325882A patent/AU2009325882A1/en not_active Abandoned
- 2009-12-09 KR KR1020117016167A patent/KR20110106362A/en not_active Application Discontinuation
- 2009-12-11 AR ARP090104811A patent/AR076449A1/en unknown
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2011
- 2011-06-10 ZA ZA2011/04340A patent/ZA201104340B/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112138776A (en) * | 2019-06-28 | 2020-12-29 | 三菱动力株式会社 | Grinding device, boiler system and method for operating grinding device |
| CN112138776B (en) * | 2019-06-28 | 2022-04-08 | 三菱动力株式会社 | Grinding device, boiler system and method for operating grinding device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2012511692A (en) | 2012-05-24 |
| ZA201104340B (en) | 2012-02-29 |
| WO2010067312A2 (en) | 2010-06-17 |
| ITRM20080662A1 (en) | 2010-06-13 |
| AU2009325882A1 (en) | 2011-07-07 |
| AR076449A1 (en) | 2011-06-15 |
| MX2011006263A (en) | 2011-09-06 |
| KR20110106362A (en) | 2011-09-28 |
| IT1392240B1 (en) | 2012-02-22 |
| EA201100940A1 (en) | 2012-03-30 |
| CA2746849A1 (en) | 2010-06-17 |
| US20110297061A1 (en) | 2011-12-08 |
| WO2010067312A3 (en) | 2011-04-21 |
| BRPI0923347A2 (en) | 2019-04-02 |
| EP2368070A2 (en) | 2011-09-28 |
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