CN105020726B - It is a kind of to reclaim device and its application that dry slag-removing machine hot blast reduction burner hearth bottom inorganization is leaked out - Google Patents
It is a kind of to reclaim device and its application that dry slag-removing machine hot blast reduction burner hearth bottom inorganization is leaked out Download PDFInfo
- Publication number
- CN105020726B CN105020726B CN201510448528.XA CN201510448528A CN105020726B CN 105020726 B CN105020726 B CN 105020726B CN 201510448528 A CN201510448528 A CN 201510448528A CN 105020726 B CN105020726 B CN 105020726B
- Authority
- CN
- China
- Prior art keywords
- air
- damper
- removing machine
- isolation door
- door
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The present invention, which provides a kind of dry slag-removing machine hot blast that reclaims, reduces the device that burner hearth bottom inorganization is leaked out, including suction channel, cyclone separator, sucktion fan, control device, air bypass, the first damper, the first isolation door, the second damper, the second isolation door, the 3rd damper, the 3rd isolation door；Suction channel sets gradually cyclone separator, the first damper, the first isolation door, sucktion fan, air bypass, the second isolation door, the second damper from entrance to outlet；Air bypass sets gradually the 3rd isolation door, the 3rd damper from entrance to outlet；Cyclone separator bottom is provided with clinker lock case.Apparatus of the present invention, which leak out furnace bottom inorganization, is changed into organized air-supply, improve boiler thermal output and be close to optimum value, control furnace flame centre height, reduce superheater and reheater spray water flux, mitigate pendant superheater coking that may be present, NOx emission concentration is reduced, there is obvious comprehensive benefit to unit.
Description
Technical field
The invention belongs to field of electrical equipment, more particularly to a kind of dry slag-removing machine hot blast that reclaims reduces burner hearth bottom without group
The device leaked out is knitted, further relating to a kind of dry slag-removing machine hot blast that reclaims reduces the equipment that burner hearth bottom inorganization is leaked out.
Background technology
Dry slag-removing machine is to save, economize on water, environmental protection and comprehensive benefit enjoy well the attention of power industry, currently existing up to a hundred
Platform unit has put into operation dry slag-removing machine.Dry slag-removing machine workflow：High temperature furnace slag falls on slag extractor conveying through hearth deslagging door
Take, using the negative pressure of burner hearth, by sucking surrounding air come cooled slag, cold wind absorbs the physical sensible heat and clinker of hot clinker
The laggard people's burner hearth of heat that combustible combustion is discharged, slag extractor is continuously run under the high temperature conditions.
Currently, from the point of view of dry slag-removing machine operation conditions, by the hot blast after cooling down high-temperature clinker, its temperature and air preheater
Primary and secondary air wind-warm syndrome is exported compared to more apparent relatively low, because this part furnace bottom cools down the presence of wind, will be made by air preheater
Secondary Air air quantity is reduced, and causes air preheater exchange capability of heat to decline, influence exhaust gas temperature rise, and this deviates influence boiler thermal output
Its optimal boiler thermal output value；The optimal boiler thermal output refers to, both reclaims afterheat of slags, ensures that exhaust gas temperature is not raised again
Under conditions of, the maximum boiler thermal output value that the boiler with dry slag-removing machine can reach.
The problem of currently dry slag-removing machine generally existing air leak rate of air curtain is higher, and the significantly design load of deviation air leak rate of air curtain 1%,
Part of generating units furnace bottom air leak rate of air curtain is more than 10%, even more high, higher furnace bottom air leak rate of air curtain, makes the Secondary Air air quantity by air preheater
Further reduce, make boiler thermal output off-target value farther, influence the economy of unit operation；Furnace bottom air leak rate of air curtain is higher, makes
Boiler formation of nitrogen oxides under high, middle load condition increases, and influences the emission control of nitrogen oxides, considerably increases operation
Cost；Simultaneously as most of unit mixes the economic coal of burning, the equal off-design ature of coal of ature of coal used causes slag amount inclined
From design load, the artificial increase of influence furnace bottom air leak rate of air curtain control, influence boiler thermal output reduction.The increase of furnace bottom air leak rate of air curtain, not only
Boiler thermal output off-target boiler thermal output value is influenceed, and furnace flame center can be influenceed to rise, causes furnace outlet cigarette
Temperature increase, superheater and the increase of reheater spray water flux, the possibility increase of pendant superheater coking, influence the peace of unit operation
Quan Xing, economy.Therefore, it is the safe and stable operation of guarantee boiler, need to reduces and control what dry slag-removing machine inorganization was leaked out
Air leak rate of air curtain.
This part hot blast for entering burner hearth by dry slag-removing machine belongs to inorganization and leaked out, and is normally organized in influence burner hearth
Burning, if it is possible to this part inorganization is leaked out and is changed into organized air-supply, then be beneficial in stove combustion conditions just
Often operation.
The content of the invention
Goal of the invention：In order to overcome the above-mentioned deficiencies of the prior art, dry type is reclaimed it is an object of the invention to provide one kind
The device that slag remover hot blast reduction burner hearth bottom inorganization is leaked out, dry slag-removing machine hot blast drop is reclaimed present invention also offers one kind
The equipment that low burner hearth bottom inorganization is leaked out.
Technical scheme：The dress that a kind of recovery dry slag-removing machine hot blast reduction burner hearth bottom inorganization that the present invention is provided is leaked out
Put, including suction channel, cyclone separator, sucktion fan, control device, air bypass, the first damper, the first isolation
Door, the second damper, the second isolation door, the 3rd damper, the 3rd isolation door；The suction channel from entrance to outlet according to
Secondary setting cyclone separator, the first damper, the first isolation door, sucktion fan, air bypass, the second isolation door, second are adjusted
Save air door；The air bypass sets gradually the 3rd isolation door, the 3rd damper from entrance to outlet；The cyclone separator
Bottom is provided with clinker lock case；The control device completely cuts off door, the second damper, second with the first damper, first respectively
Completely cut off door, the 3rd damper, the 3rd isolation door connection, sucktion fan connection.
As an improvement, also including insertion plate door, the insertion plate door is located between cyclone separator and clinker lock case.
The equipment that burner hearth bottom inorganization is leaked out is reduced present invention also offers a kind of dry slag-removing machine hot blast that reclaims, including
Boiler furnace, dry slag-removing machine, flue, Secondary Air air channel, burner, air preheater, suction channel, cyclone separator, take out
Induced-draught fan；The dry slag-removing machine is located at boiler furnace bottom, and the flue is at the top of boiler furnace, the Secondary Air air channel
Pass through air preheater, burner and boiler furnace UNICOM；The burner is connected with flue with Secondary Air air channel respectively；It is described
Dry slag-removing machine is connected with Secondary Air air channel by suction channel, and cyclone separator, suction are sequentially provided with the suction channel
Blower fan, the cyclone separator bottom is provided with clinker lock case.
As an improvement, being provided with slag dropping tube, the suction channel and slag dropping tube between the dry slag-removing machine and boiler furnace
Connection.
Improved as another, in addition to control device, air bypass, the first damper, the first isolation door, the second tune
Save air door, the second isolation door, the 3rd damper, the 3rd isolation door；The suction channel sets gradually rotation from entrance to outlet
Wind separator, the first damper, the first isolation door, sucktion fan, air bypass, the second isolation door, the second damper；Institute
State air bypass and the 3rd isolation door, the 3rd damper are set gradually from entrance to outlet；The control device is respectively with first
Damper, the first isolation door, the second damper, the second isolation door, the 3rd damper, the 3rd isolation door, sucktion fan
Connection.
Improved as another, in the Secondary Air air channel, the entrance and exit of suction channel outlet upstream, sucktion fan
Place is respectively equipped with pressure and temperature detection means, and the pressure and temperature detection means is connected with control device.
Improved as another, in addition to insertion plate door, the insertion plate door is located between cyclone separator and clinker lock case.
Improved as another, the porch of the suction channel is provided with filter.
Beneficial effect：The present invention provides the recovery dry slag-removing machine hot blast reduction equipment that burner hearth bottom inorganization is leaked out by stove
Bottom inorganization, which is leaked out, is changed into organized air-supply, improves boiler thermal output, is close to optimum value, reduction superheater and reheating
Device spray water flux, mitigates pendant superheater coking that may be present, reduces NOx emission concentration, has to unit obvious comprehensive
Benefit.
The present invention, which provides the recovery dry slag-removing machine hot blast reduction equipment that burner hearth bottom inorganization is leaked out, to be removed for dry type
The operation of slag machine and the technical scheme designed, by by the hot blast of burner hearth cooling down high-temperature clinker, being recycled to Secondary Air before air preheater
Air channel, will be fully solved the problem of dry slag disposal machine air leakage rate is higher, by fully reclaiming afterheat of slags, improve boiler thermal effect
Rate；It is changed into organized air-supply by the way that furnace bottom inorganization is leaked out, the combustion conditions that will be substantially improved in stove reduce flame kernel
Highly, superheater and reheater spray water flux are reduced, mitigates the possibility of pendant superheater coking, NOx generation is reduced；Pass through
Furnace bottom hot blast is delivered into Secondary Air air channel before air preheater, it is possible to increase Secondary Air wind-warm syndrome, improve air preheater cold end integrated temperature, subtract
The generation of light low-temperature corrosion, if system carries steam air heater, can reduce steam air heater steam consumption quantity, all in all, reclaim dry type
Slag remover hot blast reduces the equipment complex remarkable benefit of burner hearth bottom inleakage.
Brief description of the drawings
Fig. 1 reclaims the structural representation for the equipment that dry slag-removing machine hot blast reduction burner hearth bottom inorganization is leaked out for the present invention
Figure.
Fig. 2 shows for the partial structurtes that the present invention reclaims the equipment that dry slag-removing machine hot blast reduction burner hearth bottom inorganization is leaked out
It is intended to.
Embodiment
The equipment that dry slag-removing machine hot blast reduction burner hearth bottom inorganization is leaked out is reclaimed, Fig. 1 and Fig. 2, including Boiler Furnace is seen
Thorax 1, dry slag-removing machine 2, flue 3, Secondary Air air channel 4, burner 5, air preheater 6, suction channel 7, cyclone separator 8,
Sucktion fan 9, clinker lock case 10, control device 12, air bypass 13, the first damper 14, first isolation door 15, second are adjusted
Save the isolation of air door 16, second door 17, the 3rd damper the 18, the 3rd isolation door 19, insertion plate door 20；Dry slag-removing machine 2 is located at pot
The bottom of stove burner hearth 1 and connected by slag dropping tube 11, flue 3 is located at the top of boiler furnace 1, and Secondary Air air channel 4 passes through air preheat
Device 6, burner 5 and the UNICOM of boiler furnace 1；Burner 5 is connected with flue 3 with Secondary Air air channel 4 respectively；Slag dropping tube 11 with it is secondary
Wind air channel 4 is connected by suction channel 7, and suction channel 7 sets gradually the regulation wind of cyclone separator 8, first from entrance to outlet
Door 14, first completely cuts off door 15, sucktion fan 9, the isolation of air bypass 13, second door 17, the second damper 16；Air bypass 13
The 3rd isolation door 19, the 3rd damper 18 are set gradually from entrance to outlet；The bottom of cyclone separator 8 is provided with clinker lock case
10, insertion plate door 20 is provided between cyclone separator 8 and clinker lock case 10；Control device 12 respectively with the first damper 14,
One isolation door 15, the second damper 16, second isolation door 17, the 3rd damper the 18, the 3rd isolation door 19 are connected, suction air
Machine 9 is connected.Be respectively equipped with Secondary Air air channel 4, at the outlet upstream of suction channel 7, the entrance and exit of sucktion fan 9 pressure and
Temperature-detecting device, pressure and temperature detection means is connected with control device 12.The porch of suction channel 7 is filled provided with filtering
Put.
The operation logic of the equipment：
(1) hot blast after cooling down high-temperature clinker is entered suction channel 7 by the suction of sucktion fan 9, can be set in porch
Slag granules filter is put to the slag granules carried in initial gross separation hot blast, the carrying of dust granules in hot blast is reduced
Amount, prevents bulky grain clinker from influenceing the safe operation of sucktion fan 9；Suction channel 7 is arranged symmetrically in dry slag-removing machine both sides, with flat
Weigh combustion chamber draft, and pressure and temperature detection means can be set in the porch of suction channel 7.
(2) cyclone separator 8 is introduced into the hot blast of suction channel 7, after inertial separation, hot blast is from cyclonic separation
The upper outlet of device 8 enters sucktion fan 9, and slag granules separated, into the clinker lock case of the bottom of cyclone separator 8
10.Secondary Air air channel 4 after sucktion fan boosts hot blast before feeding air preheater 6, for balance sucktion fan 9 outlet pressure
Pressure-measuring-point can be set in power, the upstream entered in hot blast at Secondary Air air channel 4, to avoid the air quantity in Secondary Air air channel from pouring in down a chimney into dry
Formula slag remover.The pressure balance of Secondary Air air channel and dry slag-removing machine is maintained when air bypass 13 is used to start, it is to avoid influence stove
The fluctuation of thorax negative pressure.Secondary Air pours in down a chimney into dry slag-removing machine when isolation door is used to avoid the system from breaking down.
In system starting process, first the first isolation door 15 is opened, the 3rd isolation door 19 is then turned on, is taken out while starting
Induced-draught fan 9, and adjust the first damper 14 and the 3rd damper 18；When sucktion fan outlet pressure is higher than Secondary Air air channel
During pressure, the second isolation door 17 in Secondary Air air channel 4 is first turned on into, is then then turned on adjusting into the second of Secondary Air air channel 4
Air door 16 is saved, the 3rd isolation damper 18 of door 19 and the 3rd is simultaneously closed off, has been built such that from dry slag-removing machine 2 to Secondary Air
The pressure balance in air channel 4, enables the system to normal operation, it is to avoid in initial start stage, because Secondary Air duct pressure is high, make wind
Cold wind in road pours in down a chimney into dry slag-removing machine 2, and enters burner hearth 1, influences furnace pressure fluctuation.
In system operation, due to aspirating the hot blast of dry slag-removing machine 2, it is possible to combustion chamber draft is influenceed, therefore, can
Related measuring point is set to ensure the stabilization of combustion chamber draft：By combustion chamber draft signal access control apparatus 12, when combustion chamber draft occurs
Larger fluctuation, either combustion chamber draft exceed certain numerical value when or furnace hopper inlet pressure fluctuation it is larger, pressure is more than a fixed number
Value, or system oxygen amount measuring point deviate normal value it is larger when, reduce sucktion fan 9 rotating speed, adjustment fans entrance regulation first
The aperture of damper 14, reduces hot blast aspiration, maintains combustion chamber draft；If unit MFT is acted, sucktion fan 9 trips,
Isolation door and damper are turned off；If unilateral sucktion fan 9 breaks down, cause tripping operation, side isolation door and regulation wind
Door is rapid to close, it is to avoid Secondary Air anti-channeling enters dry slag-removing machine 2；Opposite side runtime suitably reduces by 9 turns of sucktion fan simultaneously
Speed, it is to avoid negative pressure deviation occur in influence stove；If the frequency conversion of sucktion fan 9 is broken down, the first damper of rapid adjustment
14, it is to avoid because the increase of pressure moment, influences combustion chamber draft.
Using Guohua Xuzhou Power Generation Co., Ltd.'s 1000MW units as research object, with regard to dry slag disposal machine air leakage rate to boiler hot
The influence of efficiency is calculated, when air leak rate of air curtain rises to 2.80% by 1.79%, and influence boiler thermal output declines about 0.30
Percentage point；When furnace bottom hydraulic shutoff door is closed, under conditions of afterheat of slags is fully reclaimed, its boiler thermal output is compared with air leak rate of air curtain
Boiler thermal output when 1.79% is high about 0.4 percentage point, i.e., by fully reclaiming the hot blast of dry slag-removing machine, stove is reduced as far as possible
The inorganization at bottom is leaked out, and is conducive to improving boiler thermal output, and if furnace bottom inorganization inleakage is bigger, then by fully returning
The economy for receiving dry slag-removing machine hot blast is better.
By reclaiming the hot blast of dry slag-removing machine, furnace bottom inleakage can be reduced, control flame kernel rises, and reduces overheat
Device and reheater spray water flux, the height of its economy are related to the actual operating state of unit.Generate electricity limited with the electric Changzhou of state
Exemplified by company's 600MW units, the unit is after wet slag removal changes pnenmatic slag handling, and reheated steam spray water flux adds about 15t/h, such as
Really put into operation this equipment, can effectively reduce furnace bottom and leak out, and declining 7.5t/h with reheating spray water flux is calculated, and can reduce power supply
Coal consumption about 0.23g/kWh.
When furnace bottom hydraulic shutoff door is closed, furnace bottom inorganization will be greatly reduced and leaks out, main burner bottom can be effectively reduced
The operation oxygen amount in layer region, reduces the generation of nitrogen oxides, by taking Guo electricity Dong Sheng power ＆ light companies 330MW units as an example, negative in 315MW
Under lotus, when furnace bottom hydraulic shutoff door is closed, nitrogen oxides is from 350mg/m3Drop to 280mg/m3, about 20% is have dropped, and pass through
The hot blast of dry slag-removing machine is reclaimed, reduces furnace bottom inorganization and leaks out, the effect that it is acted on to furnace bottom hydraulic shutoff door is closed is similar,
It is same to reduce the concentration of nitrogen oxides under high, middle load, pollutant emission is controlled, reduces operating cost.
By the hot blast for reclaiming dry slag-removing machine, it is possible to increase air preheater entrance Secondary Air wind-warm syndrome, by calculating, for
600MW units, under full capacity, it is possible to increase about 3-4 DEG C of Secondary Air wind-warm syndrome, if in the case that the quantity of slag is larger, its temperature rise width
Degree also has certain rising space, and this is beneficial to reduce Secondary Air wind side steam air heater when putting into operation for the unit with steam air heater
The consumption of high-temperature steam, reduces unit heat consumption, improves the economy of unit operation.
This equipment needs two sucktion fans that put into operation, although this two sucktion fans need to consume certain power consumption, but with
Above-mentioned income compares, and this system can effectively reduce furnace bottom inorganization and leak out, and fully reclaim afterheat of slags, force boiler thermal output
Its nearly optimum value, furnace bottom inorganization is leaked out and is changed into leaking out in a organized way, and control flame kernel rises, and optimizes hearth combustion operating mode,
Superheater and reheater spray water flux are reduced, mitigates pendant superheater coking that may be present, NOx emission concentration is reduced, has
Significant integrated application benefit.
Claims (2)
1. a kind of reclaim the equipment that dry slag-removing machine hot blast reduction burner hearth bottom inorganization is leaked out, it is characterised in that：Including boiler
Burner hearth (1), dry slag-removing machine (2), flue (3), Secondary Air air channel (4), burner (5), air preheater (6), suction channel
(7), cyclone separator (8), sucktion fan (9)；The dry slag-removing machine (2) is located at boiler furnace (1) bottom, the flue
(3) at the top of boiler furnace (1), the Secondary Air air channel (4) passes through air preheater (6), burner (5) and boiler furnace
(1) UNICOM；The burner (5) is connected with flue (3) with Secondary Air air channel (4) respectively；The dry slag-removing machine (2) with it is secondary
Wind air channel (4) is connected by suction channel (7), and cyclone separator (8), sucktion fan are sequentially provided with the suction channel (7)
(9), cyclone separator (8) bottom is provided with clinker lock case (10)；
The suction channel (7) is arranged symmetrically in dry slag-removing machine (2) both sides；
Slag dropping tube (11), the suction channel (7) and slag dropping tube are provided between the dry slag-removing machine (2) and boiler furnace (1)
(11) connect；
Also include control device (12), air bypass (13), the first damper (14), the first isolation door (15), the second regulation
Air door (16), the second isolation door (17), the 3rd damper (18), the 3rd isolation door (19)；The suction channel (7) is from entrance
Cyclone separator (8), the first damper (14), the first isolation door (15), sucktion fan (9), ventilation are set gradually to outlet
Bypass (13), the second isolation door (17), the second damper (16)；The air bypass (13) sets gradually from entrance to outlet
3rd isolation door (19), the 3rd damper (18)；The control device (12) respectively with the first damper (14), first every
Exhausted door (15), the second damper (16), the second isolation door (17), the 3rd damper (18), the 3rd isolation door (19), suction
Blower fan (9) is connected；
It is respectively equipped with the Secondary Air air channel (4), at suction channel (7) outlet upstream, the entrance and exit of sucktion fan (9)
Pressure and temperature detection means, the pressure and temperature detection means is connected with control device (12)；
The porch of the suction channel (7) is provided with filter.
2. a kind of dry slag-removing machine hot blast that reclaims according to claim 1 reduces the equipment that burner hearth bottom inorganization is leaked out,
It is characterized in that：Also include insertion plate door (20), the insertion plate door (20) located at cyclone separator (8) and clinker lock case (10) it
Between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510448528.XA CN105020726B (en) | 2015-07-28 | 2015-07-28 | It is a kind of to reclaim device and its application that dry slag-removing machine hot blast reduction burner hearth bottom inorganization is leaked out |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510448528.XA CN105020726B (en) | 2015-07-28 | 2015-07-28 | It is a kind of to reclaim device and its application that dry slag-removing machine hot blast reduction burner hearth bottom inorganization is leaked out |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105020726A CN105020726A (en) | 2015-11-04 |
| CN105020726B true CN105020726B (en) | 2017-08-22 |
Family
ID=54410895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510448528.XA Active CN105020726B (en) | 2015-07-28 | 2015-07-28 | It is a kind of to reclaim device and its application that dry slag-removing machine hot blast reduction burner hearth bottom inorganization is leaked out |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105020726B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107906549B (en) * | 2017-11-08 | 2024-01-30 | 上海锅炉厂有限公司 | System for reducing exhaust gas temperature of air preheater by replacing furnace bottom air leakage of power station boiler |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1188247B (en) * | 1986-01-10 | 1988-01-07 | Magaldi Mario | PROCEDURE AND EQUIPMENT FOR THE CONTINUOUS DRY EXTRACTION OF HEAVY ASH |
| CN202040832U (en) * | 2011-04-19 | 2011-11-16 | 山东电力研究院 | Connecting system of regenerative air preheater air leakage recycling device and dry-type slag removal machine |
| CN202419677U (en) * | 2011-10-24 | 2012-09-05 | 河北省电力勘测设计研究院 | Dry slagging cooling air processing system |
| CN104132355A (en) * | 2014-07-25 | 2014-11-05 | 国家电网公司 | Dry-type deslagging system capable of adjusting cooling air |
| CN204943519U (en) * | 2015-07-28 | 2016-01-06 | 南京电力设备质量性能检验中心 | A kind of dry slag-removing machine hot blast that reclaims reduces the device and equipment thereof that burner hearth bottom inorganization leaks out |
-
2015
- 2015-07-28 CN CN201510448528.XA patent/CN105020726B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105020726A (en) | 2015-11-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100535131C (en) | Dry-method dust collection and surplus energy recovery device for steel-smelting converter flue gas | |
| CN201574162U (en) | Converter flue gas complementary-energy generating system with gas combustion device | |
| CN103776045B (en) | The method and system of a kind of wet bottom boiler lime-ash heat recovery | |
| CN206739283U (en) | A kind of depth peak regulation preheats low-load combustion-stabilizing combustion system with heat smoke | |
| CN107894173A (en) | A kind of full negative pressure coke stoving process of flue gas self-circulation type and system | |
| CN103925605A (en) | High-moisture lignite medium-speed coal mill pulverizing system heating primary air through pulverized coal burning | |
| CN102174663B (en) | Blast-furnace coal injection pulverization flue gas system and control method thereof | |
| CN104101225B (en) | For improving the system and method for calcium carbide stove exhaust comprehensive utilization ratio | |
| CN107013907A (en) | A kind of pulverized-coal fired boiler waste heat from tail gas for pulverized coal preparation utilizes system | |
| CN204943519U (en) | A kind of dry slag-removing machine hot blast that reclaims reduces the device and equipment thereof that burner hearth bottom inorganization leaks out | |
| CN207159064U (en) | One kind is slagged tap heat drying Disposal System of Mud Burning | |
| CN105020726B (en) | It is a kind of to reclaim device and its application that dry slag-removing machine hot blast reduction burner hearth bottom inorganization is leaked out | |
| WO2021082755A1 (en) | Dust removal device for coke dry quenching, and method for increasing steam yield of coke dry quenching boiler | |
| CN201983281U (en) | Energy-saving exit flue for horizontal coal burning boiler | |
| CN104197362A (en) | Fume-dried closed pulverization coal-fired boiler unit with function of exhaust water recovery | |
| CN205897119U (en) | High -efficient gas recirculation oxygen boosting combustion system | |
| CN202007237U (en) | Coal injection and pulverization flue gas system for blast furnace | |
| CN205481050U (en) | To treatment system who leaks out at bottom of dry slag -tap furnace of boiler forced air cooling | |
| CN204388089U (en) | A kind of pulverized-coal fired boiler lime-ash cooling conveying system | |
| CN213453687U (en) | Device for reducing air leakage of boiler bottom dry slag discharge | |
| CN208818016U (en) | Electric arc furnaces afterheat utilizing system | |
| CN107084386A (en) | A kind of integrated gasification fired boiler system of biomass | |
| CN204240386U (en) | Superheat steam drying powder process type coal generating system | |
| CN207570348U (en) | A kind of full negative pressure coke drying system of flue gas self-circulation type | |
| CN102607286A (en) | Molten salt furnace afterheat power-generation and combustion comprehensive utilizing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 210000 Qixia, Jiangsu Province, Wonderland Road, No. 10, Patentee after: Guodian Nanjing electric power test & Research Co., Ltd. Address before: 210000 Qixia, Jiangsu Province, Wonderland Road, No. 10, Patentee before: Nanjing Power Equipment Quality & Performance Test Center |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 210000 fairyland Road, Qixia District, Nanjing, Jiangsu Province, No. 10 Patentee after: Guoneng Nanjing Electric Power Test Research Co.,Ltd. Address before: 210000 fairyland Road, Qixia District, Nanjing, Jiangsu Province, No. 10 Patentee before: GUODIAN NANJING ELECTRIC POWER TEST RESEARCH Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |