CN109654476A - A kind of reciprocating-grate boiler is changed to the method and pulverized-coal fired boiler of pulverized-coal fired boiler - Google Patents
A kind of reciprocating-grate boiler is changed to the method and pulverized-coal fired boiler of pulverized-coal fired boiler Download PDFInfo
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- CN109654476A CN109654476A CN201910151889.6A CN201910151889A CN109654476A CN 109654476 A CN109654476 A CN 109654476A CN 201910151889 A CN201910151889 A CN 201910151889A CN 109654476 A CN109654476 A CN 109654476A
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- coal
- pulverized
- boiler
- reciprocating
- grate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
- F23B10/00—Combustion apparatus characterised by the combination of two or more combustion chambers
- F23B10/02—Combustion apparatus characterised by the combination of two or more combustion chambers including separate secondary combustion chambers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D1/00—Burners for combustion of pulverulent fuel
-
- 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
- F23J1/06—Mechanically-operated devices, e.g. clinker pushers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Combustion Of Fluid Fuel (AREA)
Abstract
The present invention relates to boiler technology field, method and pulverized-coal fired boiler that a kind of reciprocating-grate boiler is changed to pulverized-coal fired boiler are disclosed.The following steps are included: the fire grate of S1, dismounting reciprocating-grate boiler, to form funnel shaped Pulverized-coal-fired Furnaces down along stretching for the face arch of the reciprocal grate and rear arch, slag cooling bucket structure is arranged in the bottom of the Pulverized-coal-fired Furnaces；S2, the top that coal burner is arranged in the Pulverized-coal-fired Furnaces；S3, the coal store of reciprocating-grate boiler is improved to pulverized coal bin, and adds coal feeder, the coal feeder is connect with the outlet of the pulverized coal bin, and the coal feeder into coal dust channel with the coal burner by being connected to.The method that reciprocating-grate boiler of the present invention is changed to pulverized-coal fired boiler improves burning of coal rate, energy-efficient, save the cost, and can reach the requirement of clean emission.
Description
Technical field
The present invention relates to methods and coal that boiler technology field more particularly to a kind of reciprocating-grate boiler are changed to pulverized-coal fired boiler
Powder boiler.
Background technique
It is rich coal, oil starvation, few gas the characteristics of energy resources at present.It means that coal is when considerably long at present and in the future
It all will be the leading of energy resource structure in phase.However coal-burned industrial boiler has the shortcomings that seriously polluted and efficiency is horizontal low.Atmosphere
Improvement is a vital task and must completing for a task.Boiler emission flue gas is an important set of atmosphere pollution
At part, therefore the requirement to boiler emission is gradually stringent, and flue gas emission index is lower and lower.Present conditional place starts
It carries out fire coal and changes gas works, but be limited to gas price height, the limited reason of fuel gas source, most places must be with fire coal
It is main, clean combustion transformation is carried out to fire coal, becomes and solves minimum discharge main means.Wherein reciprocating-grate boiler is referred to as reciprocal
Furnace is one kind of layer burner, and reciprocating furnace uses SNCR denitration, and minimum emission control is in 300mg/m3, as boiler wants discharge
The continuous improvement asked, has been unable to meet standard；Furthermore efficiency of fire coal is 80% or so, and efficiency is relatively low.And pulverized-coal fired boiler is using mill
The coal dust of the following fineness of 200 mesh is made, coal dust suspension combustion in burner hearth increases with air contact area, and burning velocity is fast, combustion
It burns efficiency and is up to 99% or more.If reciprocating-grate boiler is directly changed to pulverized-coal fired boiler, although being able to solve the above problem,
It is the serious waste for causing resource.Therefore it needs to design a kind of method that reciprocating-grate boiler is changed to pulverized-coal fired boiler, can be realized
Reciprocating-grate boiler waste utilization improves efficiency of combustion, reaches the requirement of cleaning discharge.
Summary of the invention
Based on the above, the purpose of the present invention is to provide a kind of reciprocating-grate boiler be changed to pulverized-coal fired boiler method and
Pulverized-coal fired boiler improves burning of coal rate, energy-efficient, save the cost, and can reach the requirement of clean emission.
In order to achieve the above object, the invention adopts the following technical scheme:
A kind of method that reciprocating-grate boiler is changed to pulverized-coal fired boiler, comprising the following steps: S1, remove reciprocating-grate boiler
The face arch of the reciprocating-grate boiler and rear arch to be formed funnel shaped Pulverized-coal-fired Furnaces down along stretching, the Pulverized-coal-fired Furnaces by fire grate
Bottom be arranged slag cooling bucket structure；S2, the top that coal burner is arranged in the Pulverized-coal-fired Furnaces；S3, by reciprocal grate pot
The coal store of furnace is improved to pulverized coal bin, and adds coal feeder, and the coal feeder is connect with the outlet of the pulverized coal bin, described
Coal feeder into coal dust channel with the coal burner by being connected to.
As a kind of optimal technical scheme, in step sl, the Pulverized-coal-fired Furnaces include the first burner hearth and the second burner hearth, institute
The lower part for stating the first burner hearth is connected to the lower part of second burner hearth.
As a kind of optimal technical scheme, in step s 2, first burner hearth is arranged in the coal burner
Top.
As a kind of optimal technical scheme, the smoke-outlet flue of reciprocating-grate boiler is improved to coal dust smoke-outlet flue, it is described
Coal dust smoke-outlet flue is connected to the side wall upper part of the Pulverized-coal-fired Furnaces, is provided with denitrification apparatus in the coal dust smoke-outlet flue.
As a kind of optimal technical scheme, in step s3, had additional between the pulverized coal bin and the coal feeder
Measuring chute, the import of the measuring chute are connect with the outlet of the pulverized coal bin, the outlet of the measuring chute and the coal feeder
Import connection.
As a kind of optimal technical scheme, bag filter is provided at the top of the pulverized coal bin.
As a kind of optimal technical scheme, the section of the lower part of the pulverized coal bin gradually subtracts along the conveying direction into coal dust
It is small.
As a kind of optimal technical scheme, the quantity of the coal burner is two.
As a kind of optimal technical scheme, it is single that control is added on the pulverized-coal fired boiler being changed to by the reciprocating-grate boiler
Member.
As a kind of optimal technical scheme, pulverized-coal fired boiler is changed to using the reciprocating-grate boiler of any of the above-described technical solution
Reciprocating-grate boiler is changed to pulverized-coal fired boiler by method.
The invention has the benefit that
The method that reciprocating-grate boiler of the invention is changed to pulverized-coal fired boiler changes the fire grate combustion system of reciprocating-grate boiler
For the coal burner combustion system of pulverized-coal fired boiler, effectively improve burning of coal rate, it is energy-efficient, by it is seriously polluted,
Reciprocating-grate boiler waste utilization not up to standard is changed to clean pulverized-coal fired boiler, save the cost, and can reach clean emission
It is required that.
Pulverized-coal fired boiler of the invention improves to obtain using the method that reciprocating-grate boiler is changed to pulverized-coal fired boiler, and structure is simple,
Realize waste utilization, save the cost.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, institute in being described below to the embodiment of the present invention
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also implement according to the present invention
The content of example and these attached drawings obtain other attached drawings.
Fig. 1 is the structural schematic diagram for the reciprocating-grate boiler that prior art specific embodiment provides；
Fig. 2 is the method flow signal that the reciprocating-grate boiler that the specific embodiment of the invention provides is changed to pulverized-coal fired boiler
Figure；
Fig. 3 is the structural schematic diagram for the pulverized-coal fired boiler that the specific embodiment of the invention provides.
In figure:
1- reciprocating-grate boiler；101- drum；102- burner hearth；103- convection bank；104- face arch；105- rear arch；106-
Fire grate；107- smoke-outlet flue；108- economizer；109- coal store；110- slips coal scuttle；
2- pulverized-coal fired boiler；201- Pulverized-coal-fired Furnaces；The first burner hearth of 2011-；The second burner hearth of 2012-；202- coal burner；
203- pulverized coal bin；204- coal feeder；205- measuring chute；206- coal dust smoke-outlet flue；207- denitrification apparatus.
Specific embodiment
To keep the technical problems solved, the adopted technical scheme and the technical effect achieved by the invention clearer, below
It will the technical scheme of the embodiment of the invention will be described in further detail in conjunction with attached drawing, it is clear that described embodiment is only
It is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those skilled in the art exist
Every other embodiment obtained under the premise of creative work is not made, shall fall within the protection scope of the present invention.
Fig. 1 is existing reciprocating-grate boiler 1, is a kind of layer of burner, and boiler efficiency is 80% or so, and efficiency is relatively low.It is past
Multiple furnace grate 1 includes steelframe and burner hearth 102, the convection tube for being provided with drum 101 on burner hearth 102 and being connected to drum 101
Beam 103.102 bottom of burner hearth is provided with fire grate 106, and fire grate 106 is made of the movable furnace grate plate and fixed grate film of alternate arrangement.
Fire grate segment is made of cast iron, and fire grate segment is the stairstepping inclined grate 106 of mechanical driven, and burning of coal process is on the move complete
At, fire grate 106, which moves back and forth, gradually shifts coal onto slag-drip opening.Coal adaptability is poor, and reciprocating-grate boiler 1 is unsuitable for calorific value
The coal that high, ash content is again more, coking capacity is strong.The cooling condition of grate furnace piece is bad, is unsuitable for the nothing that burning volatiles are low, phosphorus content is high
Bituminous coal.1 side of reciprocating-grate boiler is provided with coal store 109 and slips coal scuttle 110 with what the outlet of coal store 109 connected, slips coal scuttle
It is connected to inside 110 outlet and burner hearth 102.Coal is generally inclination angle coaling machine on reciprocating-grate boiler 1, and occupied area is huge, on
Coal compares more complicated.102 lower part of burner hearth is provided with face arch 104 and rear arch 105, and 102 middle position of burner hearth is connected with smoke-outlet flue
107, economizer 108 is provided in smoke-outlet flue 107.Reciprocating-grate boiler 1 uses SNCR denitration, and minimum emission control exists
300mg/m3, continuous improvement with boiler to emission request has been unable to meet standard.
As shown in Fig. 2, present embodiment provides a kind of method that reciprocating-grate boiler is changed to pulverized-coal fired boiler, this method includes
Following steps:
S1, the fire grate 106 for removing reciprocating-grate boiler 1, by the face arch 104 of reciprocating-grate boiler 1 and rear arch 105 down along
Funnel shaped Pulverized-coal-fired Furnaces 201 are extended to form, slag cooling bucket structure is arranged in the bottom of Pulverized-coal-fired Furnaces 201.
Specifically, as shown in figure 3, the structures such as steelframe, drum 101 of reservation reciprocating-grate boiler 1 are constant, by reciprocal grate
The face arch 104 and rear arch 105 of boiler 1 form funnel shaped Pulverized-coal-fired Furnaces 201 down along improvement is stretched, and are conducive to cinder and fall into cold slag
It in bucket structure, is convenient to clean, cinder is prevented to be adhered on the inner wall of Pulverized-coal-fired Furnaces 201.Slag cooling bucket structure is for being discharged cinder.This
In embodiment, by the lower bend of face arch 104 and rear arch 105 from original lateral bend forwards, backwards, it is improved to Pulverized-coal-fired Furnaces
201 inside is formed by bending infundibulate, is conducive to the discharge of cinder.
Further, Pulverized-coal-fired Furnaces 201 include the first burner hearth 2011 and the second burner hearth 2012, the lower part of the first burner hearth 2011
It is connected to the lower part of the second burner hearth 2012, increases coal dust firing path, increased coal dust and air contact time, effectively increase
Coal utilization.
S2, the top that coal burner 202 is arranged in Pulverized-coal-fired Furnaces 201.
Specifically, coal burner 202 is arranged in the top of the first burner hearth 2011, coal burner 202 is to coal-powder boiler
The coal dust of 201 internal spray of thorax burning, the coal dust of burning and the flue gas of generation enter the second furnace by the lower part of the first burner hearth 2011
In thorax 2012, the burning time of coal dust is increased, coal combustion rate is energy-efficient.The quantity of coal burner 202 is two, is increased
The heat production efficiency of pulverized-coal fired boiler 2 is added.Two coal burners 202 are all made of the of two layers of air distribution structure and pulverized-coal fired boiler 2
Air distribution structure three times, so that coal dust firing is more thorough, it is more efficient.
S3, the coal store 109 of reciprocating-grate boiler 1 is improved to pulverized coal bin 203, and adds coal feeder 204, filled to coal
It sets 204 to connect with the outlet of pulverized coal bin 203, coal feeder 204 into coal dust channel with coal burner 202 by being connected to.
Specifically, change by the coal store 109 of reciprocating-grate boiler 1 and with the coal scuttle 110 that slips of the outlet of coal store 109 connection
For pulverized coal bin 203, saving improvement cost saves the space of pulverized-coal fired boiler 2.The section of the lower part of pulverized coal bin 203 is along into coal dust
Conveying direction is gradually reduced, convenient for the speed of control coal dust outflow.The top of pulverized coal bin 203 is provided with bag filter, so that
Improved pulverized-coal fired boiler 2 meets low dust discharge requirement, and in present embodiment, bag filter is the prior art, and details are not described herein.
Measuring chute 205 and coal feeder 204 are added, the import of measuring chute 205 connect with the outlet of pulverized coal bin 203, can accurately measure
The weight of coal dust is easy to convenient for the control coal dust firing time to progress coal dust supplement in burner hearth 201.The outlet of measuring chute 205 with
The import of coal feeder 204 connects, and coal feeder 204 can be by the coal dust measured by being conveyed to coal dust combustion into coal dust channel
Burner 202.
Further, the smoke-outlet flue 107 of reciprocating-grate boiler 1 is by being connected to the company of being improved in the middle part of the side wall of burner hearth 102
The side wall upper part connect in burner hearth 201 forms coal dust smoke-outlet flue 206, and to increase the space of smoke-outlet flue 107, improved coal dust goes out
Denitrification apparatus 207, the denitration technology that denitrification apparatus 207 is combined using SCR with SNCR, for removing are provided in cigarette channel 206
The nitrogen oxides in discarded flue gas is removed, so that smoke evacuation reaches minimum discharge standard, protects environment.Change by reciprocating-grate boiler 1
At pulverized-coal fired boiler 2 on add control unit, control unit is connect with computer so that pulverized-coal fired boiler 2 be Automatic Control, operation
Simply, the load variations of pulverized-coal fired boiler 2 are conveniently adjusted.
As shown in figure 3, present embodiment a kind of method for being changed to pulverized-coal fired boiler using reciprocating-grate boiler is also provided will be past
Multiple furnace grate 1 is changed to pulverized-coal fired boiler 2, and improved structure is simple, realizes waste utilization, save the cost.
The pulverized-coal fired boiler 2 improves on reciprocating-grate boiler 1, improves the waste utilization of reciprocating-grate boiler 1, such as
Shown in Fig. 1, pulverized-coal fired boiler 2 includes reciprocating-grate boiler main body, and reciprocating-grate boiler main body includes pulverized coal bin 203, Pulverized-coal-fired Furnaces
201 and coal feeder 204, pulverized coal bin 203 is configured as storage coal dust；Slag cooling bucket structure, coal is arranged in the bottom of Pulverized-coal-fired Furnaces 201
The top of powder burner hearth 201 is provided with coal burner 202；Coal feeder 204 is connect with the outlet of pulverized coal bin 203, coal feeder
204 into coal dust channel with coal burner 202 by being connected to.
Specifically, Pulverized-coal-fired Furnaces 201 include the first burner hearth 2011 and the second burner hearth 2012, the lower part of the first burner hearth 2011 with
The lower part of second burner hearth 2012 is connected to.The arrangement increases coal dust firing paths, increase coal dust and air contact time, effectively mention
High coal utilization.Preferably, the top of the first burner hearth 2011 is arranged in coal burner 202.
The flue gas of the coal dust that coal burner 202 burns to 201 internal spray of Pulverized-coal-fired Furnaces, the coal dust of burning and generation by
The lower part of first burner hearth 2011 enters in the second burner hearth 2012, increases the burning time of coal dust, coal combustion rate is energy-efficient.
The side of Pulverized-coal-fired Furnaces 201 is connected to coal dust smoke-outlet flue 206, is provided with denitrification apparatus 207 in coal dust smoke-outlet flue 206.Denitration
The denitration technology that device 207 is combined using SCR with SNCR, for removing the nitrogen oxides in discarded flue gas, so that smoke evacuation reaches
To minimum discharge standard, environment is protected.Preferably, coal dust smoke-outlet flue 206 is connected to the side wall upper part of Pulverized-coal-fired Furnaces 201.It should
The space for increasing smoke-outlet flue 107 is set, convenient for out of stock device 207 is arranged.
Measuring chute 205, the import and pulverized coal bin 203 of measuring chute 205 are provided between pulverized coal bin 203 and coal feeder 204
Outlet connection, the outlet of measuring chute 205 is connect with the import of coal feeder 204.The setting of measuring chute 205 can be measured accurately
The weight of coal dust is easy to convenient for the control coal dust firing time to progress coal dust supplement in Pulverized-coal-fired Furnaces 201.
Preferably, the top of pulverized coal bin 203 is provided with bag filter.The setting of bag filter is so that pulverized-coal fired boiler 2
Meet low dust discharge requirement.The section of the lower part of pulverized coal bin 203 is gradually reduced along the conveying direction into coal dust, convenient for control pulverized coal flow
Speed out.
Coal burner 202 is arranged in the top of burner hearth 201, and flame burns downwards, reaches 2011 bottom of the first burner hearth, so
Afterwards along the second burning upwards of burner hearth 2012, flame stroke is doubled in a limited space, extends the burner interval of coal dust,
Improve efficiency of combustion.The coal dust smoke-outlet flue 206 of improved pulverized-coal fired boiler 2 is connected to the side wall upper part of Pulverized-coal-fired Furnaces 201, increases
The space of installation denitrification apparatus 207 is added, has realized that the denitration technology that SCR is combined with SNCR, flue gas meet minimum discharge standard.
Improved pulverized-coal fired boiler 2 has efficient industrial applicibility, rated heating capacity 70MW；Specified leaving water temperature is 130 DEG C；It is specified
Inflow temperature is 70 DEG C；Rated pressure is 1.6MPa；Using forced circulation, water circulation resistance is less than or equal to 0.06MPa；Have
30%~100% Load Regulation ability, guaranteeing can continuous-stable safety fortune when 2 boiler load of pulverized-coal fired boiler is changeable, start and stop are frequent
Row.Improved pulverized-coal fired boiler 2 is through thermal testing, and the thermal efficiency reaches 90% or more, and efficiency of combustion reaches 98% or more.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention
It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also
It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (10)
1. a kind of method that reciprocating-grate boiler is changed to pulverized-coal fired boiler, which comprises the following steps:
S1, the fire grate (106) for removing reciprocating-grate boiler (1), by the face arch (104) and rear arch of the reciprocating-grate boiler (1)
(105) down along extending to form funnel shaped Pulverized-coal-fired Furnaces (201), slag cooling bucket knot is arranged in the bottom of the Pulverized-coal-fired Furnaces (201)
Structure；
S2, coal burner (202) are arranged at the top of the Pulverized-coal-fired Furnaces (201)；
S3, the coal store (109) of reciprocating-grate boiler (1) is improved to pulverized coal bin (203), and adds coal feeder (204), institute
Coal feeder (204) is stated to connect with the outlet of the pulverized coal bin (203), the coal feeder (204) by into coal dust channel with
Coal burner (202) connection.
2. the method that reciprocating-grate boiler according to claim 1 is changed to pulverized-coal fired boiler, which is characterized in that in step S1
In, the Pulverized-coal-fired Furnaces (201) include the first burner hearth (2011) and the second burner hearth (2012), under first burner hearth (2011)
Portion is connected to the lower part of second burner hearth (2012).
3. the method that reciprocating-grate boiler according to claim 2 is changed to pulverized-coal fired boiler, which is characterized in that in step S2
In, the coal burner (202) are arranged at the top of first burner hearth (2011).
4. the method that reciprocating-grate boiler according to claim 1 is changed to pulverized-coal fired boiler, which is characterized in that by reciprocal grate
The smoke-outlet flue (107) of boiler (1) is improved to coal dust smoke-outlet flue (206), and the coal dust smoke-outlet flue (206) is connected to described
The side wall upper part of Pulverized-coal-fired Furnaces (201), the coal dust smoke-outlet flue (206) is interior to be provided with denitrification apparatus (207).
5. the method that reciprocating-grate boiler according to any one of claims 1-4 is changed to pulverized-coal fired boiler, which is characterized in that
In step S3, measuring chute (205), the measuring chute are had additional between the pulverized coal bin (203) and the coal feeder (204)
(205) import is connect with the outlet of the pulverized coal bin (203), the outlet of the measuring chute (205) and the coal feeder
(204) import connection.
6. the method that reciprocating-grate boiler according to any one of claims 1-4 is changed to pulverized-coal fired boiler, which is characterized in that institute
It states and is provided with bag filter at the top of pulverized coal bin (203).
7. the method that reciprocating-grate boiler according to any one of claims 1-4 is changed to pulverized-coal fired boiler, which is characterized in that institute
The section for stating the lower part of pulverized coal bin (203) is gradually reduced along the conveying direction into coal dust.
8. the method that reciprocating-grate boiler according to any one of claims 1-4 is changed to pulverized-coal fired boiler, which is characterized in that institute
The quantity for stating coal burner (202) is two.
9. the method that reciprocating-grate boiler according to claim 1-4 is changed to pulverized-coal fired boiler, which is characterized in that
Control unit is added on the pulverized-coal fired boiler (2) being changed to by the reciprocating-grate boiler (1).
10. a kind of pulverized-coal fired boiler, which is characterized in that be changed to coal using the reciprocating-grate boiler any in claim 1-9
Reciprocating-grate boiler (1) is changed to pulverized-coal fired boiler (2) by the method for powder boiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910151889.6A CN109654476A (en) | 2019-02-28 | 2019-02-28 | A kind of reciprocating-grate boiler is changed to the method and pulverized-coal fired boiler of pulverized-coal fired boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910151889.6A CN109654476A (en) | 2019-02-28 | 2019-02-28 | A kind of reciprocating-grate boiler is changed to the method and pulverized-coal fired boiler of pulverized-coal fired boiler |
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| Publication Number | Publication Date |
|---|---|
| CN109654476A true CN109654476A (en) | 2019-04-19 |
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ID=66123404
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|---|---|---|---|
| CN201910151889.6A Pending CN109654476A (en) | 2019-02-28 | 2019-02-28 | A kind of reciprocating-grate boiler is changed to the method and pulverized-coal fired boiler of pulverized-coal fired boiler |
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| CN (1) | CN109654476A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203364124U (en) * | 2013-06-03 | 2013-12-25 | 诸暨天立环保节能技术有限公司 | Pulverized coal boiler modified from chain-grate boiler |
| CN203549793U (en) * | 2013-09-22 | 2014-04-16 | 中国计量学院 | Combined type chain grate furnace with pulverized coal burner |
| CN204165038U (en) * | 2014-09-03 | 2015-02-18 | 山西蓝天环保设备有限公司 | A kind of U-shaped flame pulverized coal firing boiler |
-
2019
- 2019-02-28 CN CN201910151889.6A patent/CN109654476A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203364124U (en) * | 2013-06-03 | 2013-12-25 | 诸暨天立环保节能技术有限公司 | Pulverized coal boiler modified from chain-grate boiler |
| CN203549793U (en) * | 2013-09-22 | 2014-04-16 | 中国计量学院 | Combined type chain grate furnace with pulverized coal burner |
| CN204165038U (en) * | 2014-09-03 | 2015-02-18 | 山西蓝天环保设备有限公司 | A kind of U-shaped flame pulverized coal firing boiler |
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