CN106016333A - Novel coal-fired boiler system utilizing pulverized coal fuels - Google Patents
Novel coal-fired boiler system utilizing pulverized coal fuels Download PDFInfo
- Publication number
- CN106016333A CN106016333A CN201610479114.8A CN201610479114A CN106016333A CN 106016333 A CN106016333 A CN 106016333A CN 201610479114 A CN201610479114 A CN 201610479114A CN 106016333 A CN106016333 A CN 106016333A
- Authority
- CN
- China
- Prior art keywords
- feeding
- coal
- passage
- boiler system
- charging aperture
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
-
- 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
- F23K3/02—Pneumatic feeding arrangements, i.e. by air blast
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L5/00—Blast-producing apparatus before the fire
- F23L5/02—Arrangements of fans or blowers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2217/00—Intercepting solids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K2203/00—Feeding arrangements
- F23K2203/008—Feeding devices for pulverulent fuel
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Solid-Fuel Combustion (AREA)
Abstract
The invention discloses a novel coal-fired boiler system utilizing pulverized coal fuels. The novel coal-fired boiler system comprises a feeding device, a boiler body, an efficient dust collecting device and a chimney and is characterized in that the feeding device comprises a hopper, a feeding channel, a feeding fan and an air inlet channel; a feeding opening and an oxygen replenishing fan are arranged on the boiler body; the bottom of the hopper is connected with the feeding channel, the bottom of the feeding channel is connected with the air inlet channel, one end of the air inlet channel is connected with the feeding opening, and the other end of the air inlet channel is provided with the feeding fan; the feeding channel is tilted towards the feeding opening, and the air inlet channel and the feeding opening are horizontal; and the boiler body is connected with the efficient dust collecting device through a first smoke exhaust channel, the efficient dust collecting device is connected with an induced draft fan through a second smoke exhaust channel, and the induced draft fan is connected with a chimney. The novel coal-fired boiler system has the advantages of being convenient to operate, high in automation degree, high in pulverized coal utilizing efficiency, sufficient in combustion, high in smoke gas purifying rate, convenient to use, and the like.
Description
Technical field
The present invention relates to a kind of steam generator system, particularly relate to a kind of new coal powder fuel coal-burning boiler system.
Background technology
Coal-powder boiler refers to the outstanding burner with coal dust as fuel.Its burner hearth is the large space surrounded with water-cooling wall furnace wall, and (particle diameter is about the coal dust ground
0.05
-
0.1mm
) and air through burner mix after, spray into hearth combustion.The burning of coal dust divides preparatory stage, combustion phases and after-flame stage before catching fire.Corresponding, burner hearth can also be divided into three regions: burner near exit is ignition zone, outlet be arranged above combustion zone, the top of combustion zone until furnace outlet be burning-out zone.The coal being suitable for is many, in both can burning, dant or the low coal of low heat value, it is possible to burns the coal that caking property is stronger, is the principal mode of modern coal-burning boiler, is particularly suitable for the large-sized boiler in power plant, capacity relatively big (
D
≥
35t/h
) Industrial Boiler the most usually use.Coal-powder boiler needs to be equipped with coal-grinding equipment and corresponding dust arrester, and the tissue of combustion conditions is more complicated, affects the many factors of combustion stability.The flying dust amount of coal-powder boiler is up to
80
-
90%
, high effect dust cleaner need to be equipped with.
Modern industrial coal powder boiler technology is one and integrates Automatic-feeding and defeated powder, boiler combustion and operation control, type smoke pollutant removal and the systems technology except badger-like wild animal with deashing, have the reliable coordinated operation of relevant device forming this system only, modern industrial coal powder boiler safety and economic operation could be realized, and reach qualified pollutant emission requirement.At present, the feeding manner of pulverized-coal fired boiler has a lot, but not enough to the utilization rate of coal dust, and the efficiency of combustion at boiler internal is not highly desirable, it is impossible to meet the market demand.
Summary of the invention
The invention aims to provide one to have convenient operation, automaticity is high, and fully, gas cleaning rate is high, facilitates a kind of new coal powder fuel coal-burning boiler system of the advantages such as use for coal dust utilization ratio height and burning.
In order to realize the purpose of the present invention, the present invention is realized by techniques below means: a kind of new coal powder fuel coal-burning boiler system, including feed arrangement, boiler furnace, high effect dust cleaner, chimney；It is characterized in that: described feed arrangement includes hopper, feeding-passage, feeds blower fan, air intake passage；Described boiler furnace is provided with charging aperture and oxygenating blower fan；Described feed hopper bottom connects feeding-passage, connects air intake passage bottom described feeding-passage, and described air intake passage one end connects charging aperture, and the other end is provided with charging blower fan；Described feeding-passage tilts at charging aperture, and described air intake passage is horizontal with charging aperture；Described boiler furnace connects high effect dust cleaner by first row cigarette channel, and described high effect dust cleaner connects air-introduced machine by second row cigarette channel, and described air-introduced machine connects chimney.
Described air intake passage is positioned at bottom feeding-passage and is provided with screen cloth.
Described charging aperture both sides ecto-entad is curved.
Ash bucket top is connected bottom described high effect dust cleaner.
Described hopper bottom is provided with deashing groove.
Operation principle of the present invention:
In the present invention, by adding fuel coal dust in hopper, coal dust is in feeding-passage enters into air-supply passage, and coal dust is blown in charging aperture by the charging blower fan in air-supply passage, thus supplies boiler oil, combusting coal fines；And the oxygenating blower fan on boiler can provide sufficient oxygen in boiler internal combustor (i.e. burner hearth), enable boiler internal coal dust fully to burn, heighten coal utilization；Flue gas after burning enters in high effect dust cleaner by first row cigarette channel, after the harmful substances such as the dust in flue gas are purified by high effect dust cleaner, again flue gas is drained in chimney by second row cigarette channel, and utilize air-introduced machine to introduce in chimney by flue gas, and the ash bucket that the dust in flue gas is bottom high effect dust cleaner enters in deashing groove, effectively discharge and collect.
Beneficial effects of the present invention:
The present invention has convenient operation, and automaticity is high, and coal dust utilization ratio is high and burns fully, and gas cleaning rate is high, facilitates the advantages such as use.
Accompanying drawing explanation
Accompanying drawing
1
It it is the structure connection diagram of the present invention.
In accompanying drawing:
1-
Hopper,
2-
Feeding-passage,
3-
Charging blower fan,
4-
Air intake passage.
5-
Charging aperture,
6-
Boiler furnace,
7-
Oxygenating blower fan,
8-
First row cigarette channel,
9-
High effect dust cleaner,
10-
Ash bucket,
11-
Deashing groove,
12-
Air-introduced machine,
13-
Chimney,
14-
Second row cigarette channel.
Detailed description of the invention
Embodiment
1
A kind of new coal powder fuel coal-burning boiler system, including feed arrangement, boiler furnace
6
, high effect dust cleaner
9
, chimney
13
；It is characterized in that: described feed arrangement includes hopper
1
, feeding-passage
2
, feed blower fan
3
, air intake passage
4
；Described boiler furnace
6
It is provided with charging aperture
5
With oxygenating blower fan
7
；Described hopper
1
Bottom connects feeding-passage
2
, described feeding-passage
2
Bottom connects air intake passage
4
, described air intake passage
4
One end connects charging aperture
5
, the other end is provided with charging blower fan
3
；Described feeding-passage
2
To charging aperture
5
Place tilts, described air intake passage
4
With charging aperture
5
Horizontal；Described boiler furnace
6
By first row cigarette channel
8
Connect high effect dust cleaner
9
, described high effect dust cleaner
9
By second row cigarette channel
14
Connect air-introduced machine
12
, described air-introduced machine
12
Connect chimney
13
。
Described air intake passage
4
In be positioned at feeding-passage
2
Bottom is provided with screen cloth.
Described charging aperture
5
Both sides ecto-entad is curved.
Described high effect dust cleaner
9
Bottom connects ash bucket
10
Top.
Described ash bucket
10
Bottom is provided with deashing groove
11
。
Embodiment
2
Operation principle of the present invention:
In the present invention, by hopper
1
Middle interpolation fuel coal dust, coal dust is through feeding-passage
2
Enter in air-supply passage, the charging blower fan in air-supply passage
3
Coal dust is blown into charging aperture
5
In, thus supply boiler oil, combusting coal fines；And the oxygenating blower fan on boiler
7
Sufficient oxygen can be provided in boiler internal combustor (i.e. burner hearth), enable boiler internal coal dust fully to burn, heighten coal utilization；Flue gas after burning passes through first row cigarette channel
8
Enter high effect dust cleaner
9
In, high effect dust cleaner
9
After the harmful substances such as the dust in flue gas are purified, then by flue gas by second row cigarette channel
14
It is drained into chimney
13
In, and utilize air-introduced machine
12
Flue gas is introduced chimney
13
In, and the dust in flue gas is through high effect dust cleaner
9
The ash bucket of bottom
10
Enter deashing groove
11
In, effectively discharge and collect.
Embodiment
3
In the present invention, described boiler furnace
6
On basic preparation complete, internal basic structure is complete.
Embodiment
4
In the present invention, described screen cloth can be to charging blower fan
3
Close, the coal dust after conveniently feeding is blown into inside burner hearth.
Embodiment
5
In the present invention, hopper
1
On automatization's coal dust feed arrangement can be set, make coal dust can be automatically filled in hopper
1
In, facilitate full automatic working.
Embodiment
6
In the present invention, described high effect dust cleaner
9
In not only there is good dedusting function, also there is good purifying smoke function, can effective purifying smoke, by gas cleaning to the degree meeting discharge standard.
Embodiment
7
In the present invention, the burner hearth bottom in boiler is provided with fire grate, is provided with deashing chamber below fire grate, and deashing chamber is provided with cleaning door, the dust of boiler internal convenient for cleaning.
Claims (5)
1. a new coal powder fuel coal-burning boiler system, including feed arrangement, boiler furnace, high effect dust cleaner, chimney；It is characterized in that: described feed arrangement includes hopper, feeding-passage, feeds blower fan, air intake passage；Described boiler furnace is provided with charging aperture and oxygenating blower fan；Described feed hopper bottom connects feeding-passage, connects air intake passage bottom described feeding-passage, and described air intake passage one end connects charging aperture, and the other end is provided with charging blower fan；Described feeding-passage tilts at charging aperture, and described air intake passage is horizontal with charging aperture；Described boiler furnace connects high effect dust cleaner by first row cigarette channel, and described high effect dust cleaner connects air-introduced machine by second row cigarette channel, and described air-introduced machine connects chimney.
A kind of new coal powder fuel coal-burning boiler system the most according to claim 1, it is characterised in that: described air intake passage is positioned at bottom feeding-passage and is provided with screen cloth.
A kind of new coal powder fuel coal-burning boiler system the most according to claim 1, it is characterised in that: described charging aperture both sides ecto-entad is curved.
A kind of new coal powder fuel coal-burning boiler system the most according to claim 1, it is characterised in that: connect ash bucket top bottom described high effect dust cleaner.
A kind of new coal powder fuel coal-burning boiler system the most according to claim 4, it is characterised in that: described hopper bottom is provided with deashing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610479114.8A CN106016333A (en) | 2016-06-28 | 2016-06-28 | Novel coal-fired boiler system utilizing pulverized coal fuels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610479114.8A CN106016333A (en) | 2016-06-28 | 2016-06-28 | Novel coal-fired boiler system utilizing pulverized coal fuels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106016333A true CN106016333A (en) | 2016-10-12 |
Family
ID=57085208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610479114.8A Pending CN106016333A (en) | 2016-06-28 | 2016-06-28 | Novel coal-fired boiler system utilizing pulverized coal fuels |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106016333A (en) |
-
2016
- 2016-06-28 CN CN201610479114.8A patent/CN106016333A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161012 |