CN105135671B - A kind of many level air-distribution coal dust firing hot-blast stoves - Google Patents
A kind of many level air-distribution coal dust firing hot-blast stoves Download PDFInfo
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- CN105135671B CN105135671B CN201510572737.5A CN201510572737A CN105135671B CN 105135671 B CN105135671 B CN 105135671B CN 201510572737 A CN201510572737 A CN 201510572737A CN 105135671 B CN105135671 B CN 105135671B
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Abstract
The invention discloses a kind of many level air-distribution coal dust firing hot-blast stoves, hot-blast stove gas burner is provided with the right side of the coal pulverizer, the base end face is provided with road wheel, base top surface one end is provided with pole, the pole top is fixed with burner hearth, burner hearth air inlet is provided with bellows, the burner hearth in bellows with being set with wind coal pipe, the wind coal pipe air outlet outer wall is provided with baffle ring I, provided with regulation air quantity pull bar in wind coal pipe, baffle ring II is set with the regulation air quantity tie rod end outer wall, adjust and trapezoidal bluff body is provided with air quantity pull bar termination, the base top surface other end is provided with blower fan, hot-blast stove is provided with the right side of the hot-blast stove gas burner, dedusting induced draught system is provided with the right side of the hot-blast stove, the dedusting induced draught system is connected at the air outlet of hot-blast stove by airduct, the hot-blast stove air outlet bottom is provided with thermal source demand pipeline.The present invention improves the efficiency of combustion of pulverized coal hot air furnace, mitigates pulverized coal hot air furnace pollution on the environment, convenient and swift during operation, safe and reliable.
Description
Technical field
The invention belongs to heating, drying technical field, more particularly to a kind of many level air-distribution coal dust firing hot-blast stoves.
Background technology
The workshop of heat supply is needed at some, in order to which environment temperature is maintained in suitable scope, people are often this
Workplace installs hot-blast stove.Coal-fired hot-blast stove is that one kind produces heat by coal burning, and passes through heat transferring medium（Generally
It is air）Heat is transported to a kind of firing equipment in production environment, is combustion chamber, stove in the middle part of furnace shell mainly including furnace shell
The top of shell inner combustion chamber is installed by heat exchanger.Heat exchanger includes exhaust gases passes and air-conditioner wind passage, one end of exhaust gases passes and combustion
Burn room to be connected, the other end reaches the outside of furnace shell；The side or both sides of furnace shell are provided for blasting to air-conditioner wind passage cold
The air inlet of wind, air inlet is installed sets hot-blast outlet, cold wind to become warm wind after being absorbed heat in heat exchanger on air blower, furnace shell
From hot-blast outlet blowout.When hot-blast stove works, coal burns in a combustion chamber as fuel, and the heat produced that burns is with heat smoke
Form enter exhaust gases passes, and circulated in exhaust gases passes；Meanwhile, the cold air of the air inlet on furnace shell side wall is by blower fan
It is blown into furnace shell, and carries out in air-conditioner wind passage heat exchange with the heat smoke in exhaust gases passes, air after heating is from furnace shell
Hot-blast outlet blowout, in the growing environment for entering livestock and poultry, vegetables, so that the temperature of adjusting ambient.In production, in order to ensure
It is provided with the abundant burning of coal, combustion chamber below fire grate, fire grate provided with the combustion-supporting air outlet being connected with air blower.In addition, combustion
The top for burning room is provided with coal filling hole, and the bottom of combustion chamber, which is provided with, removes cinder notch, in order to supplemented in time into combustion chamber coal and and
The waste residue that Shi Qingli coal burnings are produced.In conventional art, coal is one uncontrollable in the stove chamber inner combustion of hot-blast stove
Process, when coal has just enter into burner hearth, burning velocity is slow, burns insufficient, the flue dust of generation is more, and the heat produced is few；With
The increase of burning degree, coal burning speed is more and more faster, the heat of release is also more and more, until the coal in burner hearth all
When fully burning, thermal discharge reaches maximum；Subsequent coal amount is gradually decreased, and thermal discharge is also fewer and fewer, to next coal it
Before, thermal discharge is preferably minimized.During this, the flowing velocity into the heat exchanger of hot-blast stove for heat transferring medium is constant
, therefore, the problem of all there is heat production and radiate uncoordinated in traditional hot-blast stove：Coal early stage, heating load is not enough, coal combustion
Burn insufficient, smoke discharge amount big；Mid-term heating load exceedes the capacity of heat transmission of heat transferring medium, causes some heats abundant
Utilize, have to be by smoke stack emission into environment；Later stage heating load and Shortcomings.In addition, adding into the combustion chamber of hot-blast stove
The opportunity of coal and coal amount can all influence the heat production speed of hot-blast stove：When environment temperature is less than the temperature needed, to hot-blast stove
It is middle to add substantial amounts of coal, hot-blast stove a large amount of heat production within a certain period of time can be made；When environment temperature is more than or equal to what is needed
During temperature, a small amount of coal is added into hot-blast stove, to maintain heat supply.At present, in the row such as the substantial amounts of chemical industry of China, ceramics
The thermal source that industry is used is coal-fired hot-blast stove either fuel-firing gas-firing hot-blast stove.China is big coal country, and coal-fired hot-blast stove is extensive
Application, coal-fired hot-blast stove use in boiler commonly use traveling-grate stoker for combustion apparatus, coal leakage quantity greatly, easy over-emitting black exhaust is attached to set
Standby many, floor space is big, causes the efficiency of combustion of coal-fired hot-blast stove relatively low, and tail gas sulfur compound is high, and environmental pollution is more serious,
Igniting is slow, and temperature control is not sensitive and accurate enough.
The content of the invention
It is an object of the invention to overcome existing deficiency there is provided a kind of efficiency of combustion for improving pulverized coal hot air furnace, subtract
Many level air-distribution coal dust firing hot-blast stoves of light pulverized coal hot air furnace pollution on the environment.
In order to reach above-mentioned purpose of design, the technical scheme that the present invention solves the use of its technology is：A kind of many level air-distribution coals
Powder burning hot-blast stove, including coal pulverizer, hot-blast stove gas burner, hot-blast stove, dedusting induced draught system, the right side of the coal pulverizer is provided with
Hot-blast stove gas burner, the hot-blast stove gas burner is made up of base, burner hearth, blower fan, and the bottom surface of the base is provided with road wheel, bottom
Seat top is provided with burner hearth, the air outlet of the burner hearth provided with connection tube head, and the air inlet of burner hearth is provided with bellows, the bellows
Tank wall on offer air inlet, the burner hearth is set with being set with bellows on wind coal pipe, the air outlet outer wall of the wind coal pipe
Have to be provided with baffle ring I, wind coal pipe on regulation air quantity pull bar, the end outer wall of the regulation air quantity pull bar and be set with baffle ring II, adjust
The end for saving air quantity pull bar is provided with trapezoidal bluff body, and the other end of the base top surface is provided with blower fan, the airduct pipe of the blower fan
Wall is fixedly connected provided with control air-valve, the air outlet of the airduct with the air inlet of bellows, and the air inlet of the wind coal pipe passes through
Pipeline is fixedly connected in coal pulverizer outlet, hot-blast stove is provided with the right side of the hot-blast stove gas burner, the hot-blast stove is by combustion chamber, drop
Dirt room, heat exchanger composition, the middle part of the combustion chamber is close to air inlet provided with filter dirt case, and the right side of combustion chamber is set respectively successively
There are dust-settling compartment and heat exchanger, the right side of the hot-blast stove is provided with dedusting induced draught system, and the dedusting induced draught system is connected by airduct
It is connected at the air outlet of hot-blast stove, the bottom of the hot-blast stove air outlet is provided with thermal source demand pipeline.
The bottom of the combustion chamber, dust-settling compartment and heat exchanger is equipped with dedusting fire door.
The end face of the baffle ring I expands angle with wind coal pipe air outlet formation rear portion.
The inwall of the burner hearth and bellows is formed at Secondary Air deferent with the outer wall of wind coal pipe.
Inlet and outlet in the hot-blast stove between combustion chamber, dust-settling compartment and heat exchanger is formed as horizontal S types air channel.
Beneficial effect of the present invention：In hot-blast stove running, hot-blast stove gas burner, it can realize automatic ignition, protect
Card is without fire in a stove before fuel is added burning；It is furnished with blower fan on hot-blast stove gas burner, air inlet has control air-valve, can increased according to heat demand
Subtract coal supply amount；There is road wheel ensure that the convenient movement of hot-blast stove gas burner for the bottom of hot-blast stove gas burner；Combustion process
In, the coal dust that Coal-disintegrating machine is provided enters inlet air coal pipe by coal pipe, being capable of automatic or manual regulation in the case where coal supply amount changes
Air quantity pull bar, moves forward and backward wind passage mouth baffle ring, causes the wind speed in secondary air duct to change, in the case where coal changes
Can be by adjusting air quantity pull bar come the distance of adjusting ignition point to bluff body, to control ignition temperature, it is ensured that low nitrogen burning.Its
Principle is that bluff body angle is 45 ° -65 °, and expand angle angle with the rear portion of hot-blast stove gas burner is engaged for 110 ° -130 °, wind coal
Wind coal dust mixed gas in pipe runs into bluff body during advancing, and expanding angle along rear portion rushes at hearth wall, passes through secondary air duct
The participation of apoplexy, forms at hot-blast stove gas burner rear portion and flows back, heated the cold wind in air channel, it is participated in stable combustion as early as possible
Burn, the volatile matter of coal dust is fully separated out firing coal-dust, in the burning of pre-burning intracavitary.The present invention improves the burning effect of pulverized coal hot air furnace
Rate, mitigates pulverized coal hot air furnace pollution on the environment, convenient and swift during operation, safe and reliable.
Brief description of the drawings
Fig. 1 is a kind of many level air-distribution coal dust firing hot-blast stove structural representations of the present invention.
Fig. 2 is hot-blast stove gas burner structural representation.
Fig. 3 is hot-blast stove gas burner sectional view.
Embodiment
The embodiment to the present invention is described in detail below in conjunction with the accompanying drawings.As Figure 1-3：A kind of multistage is matched somebody with somebody
Wind coal dust firing hot-blast stove, including coal pulverizer 1, hot-blast stove gas burner 2, hot-blast stove 3, dedusting induced draught system 4, the coal pulverizer 1
Right side be provided with hot-blast stove gas burner 2, the hot-blast stove gas burner 2 is made up of base 5, burner hearth 6, blower fan 7, the base 5
Bottom surface is provided with road wheel 8, and one end of the top surface of base 5 is provided with pole 9, and the top of the pole 9 is fixed with burner hearth 6, the burner hearth 6
Air outlet at provided with connection tube head 10, the air inlet of burner hearth 6 be provided with bellows 11, the tank wall of the bellows 11 offer into
Air port, the burner hearth 6 is provided with baffle ring I 13 with being set with wind coal pipe 12, the air outlet outer wall of the wind coal pipe 12 in bellows 11,
Provided with regulation air quantity pull bar 14 in wind coal pipe 12, baffle ring II 15 is set with the end outer wall of the regulation air quantity pull bar 14, is adjusted
The end for saving air quantity pull bar 14 is provided with trapezoidal bluff body 16, and the other end of the top surface of base 5 is provided with blower fan 7, the blower fan 7
Airduct tube wall is fixedly connected provided with control air-valve 17, the air outlet of the airduct with the air inlet of bellows 11, the wind coal pipe 12
Air inlet be fixedly connected by pipeline in the outlet of coal pulverizer 1, the right side of the hot-blast stove gas burner 2 is provided with hot-blast stove 3, the heat
Wind furnace 3 is made up of combustion chamber 18, dust-settling compartment 19, heat exchanger 20, and the middle part of the combustion chamber 18 is provided with filter dirt close to air inlet
Case 21, the right side of combustion chamber 18 is respectively equipped with dust-settling compartment 19 and heat exchanger 20 successively, and the right side of the hot-blast stove 3 is drawn provided with dedusting
Wind system 4, the dedusting induced draught system 4 is connected to by airduct at the air outlet of hot-blast stove 3, the air outlet of hot-blast stove 3
Bottom is provided with thermal source demand pipeline 22.
The combustion chamber 18, the bottom of dust-settling compartment 19 and heat exchanger 20 are equipped with dedusting fire door 23.
The end face of the baffle ring I 13 expands angle with the air outlet of wind coal pipe 12 formation rear portion.
The inwall of the burner hearth 6 and bellows 11 is formed at Secondary Air deferent 24 with the outer wall of wind coal pipe 12.
Inlet and outlet in the hot-blast stove 3 between combustion chamber 18, dust-settling compartment 19 and heat exchanger 20 is formed as horizontal S types wind
Road.
When the present invention is used:Coal cinder enters the feed hopper of coal pulverizer 1, by auger conveyor coal（Particle diameter is less than
20mm）Crushed, the mixed gas of coal dust and air is existed in the feeding cavity of coal pulverizer 1 by the fan inside coal pulverizer 1
Feeding hot-blast stove gas burner 2, being sufficiently mixed for sector-style coal is entered inside hot-blast stove gas burner 2 by its special construction in pipeline,
And carry out abundant suspension combustion in the feeding body of heater of hot-blast stove 3 in rotary manner.Hot blast blended coal ash after burning enters drop
Dirt room 19, bulky grain thing will stay in dust-settling compartment, subsequently enter heat exchanger 20, and clean hot blast enters thermal source demand after being exchanged heat
Pipeline 23, the hot blast containing dust enters dedusting induced draught system 22（Cyclone dust removal, ceramic multi-tube dedusting）, meet after dedusting
The hot blast of environmental emission standard is discharged into air.
Claims (5)
1. a kind of many level air-distribution coal dust firing hot-blast stoves, it is characterised in that：Including coal pulverizer, hot-blast stove gas burner, hot-blast stove, remove
Dirt induced draught system, the right side of the coal pulverizer is provided with hot-blast stove gas burner, and the hot-blast stove gas burner is by base, burner hearth, blower fan
Composition, the bottom surface of the base is provided with road wheel, and one end of base top surface is provided with pole, and the top of the pole is fixed with stove
Provided with connection tube head at thorax, the air outlet of the burner hearth, the air inlet of burner hearth, which is provided with bellows, the tank wall of the bellows, to be opened up
There is air inlet, the burner hearth is provided with baffle ring I, wind coal pipe with being set with wind coal pipe, the wind coal pipe air outlet outer wall in bellows
Interior be provided with regulation air quantity pull bar, the end outer wall of the regulation air quantity pull bar is set with baffle ring II, adjusts the end of air quantity pull bar
Trapezoidal bluff body is provided with head, the other end of the base top surface is provided with blower fan, and the airduct tube wall of the blower fan is provided with control air-valve,
The air outlet of the airduct is fixedly connected with the air inlet of bellows, and the air inlet of the wind coal pipe is exported by pipeline in coal pulverizer
It is fixedly connected, hot-blast stove is provided with the right side of the hot-blast stove gas burner, the hot-blast stove is made up of combustion chamber, dust-settling compartment, heat exchanger,
The middle part of the combustion chamber is close to air inlet provided with filter dirt case, and the right side of combustion chamber is respectively equipped with dust-settling compartment and heat exchange successively
Device, the right side of the hot-blast stove is provided with dedusting induced draught system, and the dedusting induced draught system is connected to going out for hot-blast stove by airduct
At air port, the bottom of the hot-blast stove air outlet is provided with thermal source demand pipeline.
2. a kind of many level air-distribution coal dust firing hot-blast stoves according to claim 1, it is characterised in that：The combustion chamber, drop
Dirt room and the bottom of heat exchanger are equipped with dedusting fire door.
3. a kind of many level air-distribution coal dust firing hot-blast stoves according to claim 1, it is characterised in that：The end of the baffle ring I
Angle is expanded in face with wind coal pipe air outlet formation rear portion.
4. a kind of many level air-distribution coal dust firing hot-blast stoves according to claim 1, it is characterised in that：The burner hearth and bellows
The outer wall of inwall and wind coal pipe be formed at Secondary Air deferent.
5. a kind of many level air-distribution coal dust firing hot-blast stoves according to claim 1, it is characterised in that：Fired in the hot-blast stove
The inlet and outlet burnt between room, dust-settling compartment and heat exchanger is formed as horizontal S types air channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510572737.5A CN105135671B (en) | 2015-09-10 | 2015-09-10 | A kind of many level air-distribution coal dust firing hot-blast stoves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510572737.5A CN105135671B (en) | 2015-09-10 | 2015-09-10 | A kind of many level air-distribution coal dust firing hot-blast stoves |
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| Publication Number | Publication Date |
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| CN105135671A CN105135671A (en) | 2015-12-09 |
| CN105135671B true CN105135671B (en) | 2017-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510572737.5A Active CN105135671B (en) | 2015-09-10 | 2015-09-10 | A kind of many level air-distribution coal dust firing hot-blast stoves |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107436034A (en) * | 2017-08-30 | 2017-12-05 | 岳中 | A kind of floated coal dust firing atmospheric energy-saving, environmentally friendly hot-blast stove |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200968599Y (en) * | 2006-11-07 | 2007-10-31 | 北京科技大学 | Low-polluting and self-prewarming powdered coal burner |
| KR100973414B1 (en) * | 2008-07-10 | 2010-07-30 | 박대용 | Coal breeze burner unnecessary preheating |
| CN102705854A (en) * | 2012-05-23 | 2012-10-03 | 中材高新材料股份有限公司 | Energy conversation and environment friendly combustion heating system |
| CN102967047A (en) * | 2012-12-19 | 2013-03-13 | 青岛海众环保锅炉股份有限公司 | Coal dust hot-blast furnace |
| CN205014610U (en) * | 2015-09-10 | 2016-02-03 | 河南陆德筑机股份有限公司 | Multistage air distribution pulverized coal combustion hot -blast furnace |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63172807A (en) * | 1987-01-09 | 1988-07-16 | Ishikawajima Harima Heavy Ind Co Ltd | Method for combustion by pulverized coal burner |
| JP2677825B2 (en) * | 1988-06-24 | 1997-11-17 | バブコツク日立株式会社 | Pulverized coal combustion equipment |
-
2015
- 2015-09-10 CN CN201510572737.5A patent/CN105135671B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200968599Y (en) * | 2006-11-07 | 2007-10-31 | 北京科技大学 | Low-polluting and self-prewarming powdered coal burner |
| KR100973414B1 (en) * | 2008-07-10 | 2010-07-30 | 박대용 | Coal breeze burner unnecessary preheating |
| CN102705854A (en) * | 2012-05-23 | 2012-10-03 | 中材高新材料股份有限公司 | Energy conversation and environment friendly combustion heating system |
| CN102967047A (en) * | 2012-12-19 | 2013-03-13 | 青岛海众环保锅炉股份有限公司 | Coal dust hot-blast furnace |
| CN205014610U (en) * | 2015-09-10 | 2016-02-03 | 河南陆德筑机股份有限公司 | Multistage air distribution pulverized coal combustion hot -blast furnace |
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| CN105135671A (en) | 2015-12-09 |
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Effective date of registration: 20211229 Address after: 473000 No. 9, No. 2 Road, Longsheng industrial park, Wolong District, Nanyang City, Henan Province Patentee after: NANYANG HAICHUANG TECHNOLOGY Co.,Ltd. Address before: 473000 new energy industry cluster, Weishi Road, Nanyang City, Henan Province Patentee before: HENAN ROADY ROAD MACHINERY Co.,Inc. |
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Effective date of registration: 20230322 Address after: 474262 Wenzhou Industrial Park, Zhashan Town, Zhenping County, Nanyang City, Henan Province Patentee after: Henan Yinghui Machinery Equipment Co.,Ltd. Address before: 473000 No. 9, No. 2 Road, Longsheng industrial park, Wolong District, Nanyang City, Henan Province Patentee before: NANYANG HAICHUANG TECHNOLOGY Co.,Ltd. |
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