CN105135671A - Multistage air distribution pulverized coal combustion hot blast stove - Google Patents
Multistage air distribution pulverized coal combustion hot blast stove Download PDFInfo
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- CN105135671A CN105135671A CN201510572737.5A CN201510572737A CN105135671A CN 105135671 A CN105135671 A CN 105135671A CN 201510572737 A CN201510572737 A CN 201510572737A CN 105135671 A CN105135671 A CN 105135671A
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- blast stove
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Abstract
The invention discloses a multistage air distribution pulverized coal combustion hot blast stove. A hot blast stove combustor is arranged on the right side of a coal pulverizer. Walking wheels are arranged on the bottom face of a base. A supporting rod is arranged at one end of the top face of the base. A hearth is fixedly arranged at the top end of the supporting rod. An air bellow is arranged at the position of an air inlet of the hearth. An air coal pipe is sleeved with the hearth and the air bellow. A first baffle ring is arranged on the outer wall of an air outlet of the air coal pipe. An air quantity adjusting pull rod is arranged inside the air coal pipe. The outer wall of the end of the air quantity adjusting pull rod is sleeved with a second baffle ring. A trapezoid bluff body is arranged at the end of the air quantity adjusting pull rod. A fan is arranged at the other end of the top face of the base. The hot blast stove is arranged on the right side of the hot blast stove combustor. A dust removal induced draught system is arranged on the right side of the hot blast stove and connected to the air outlet of the hot blast stove through an air pipe. The lower portion of the air outlet of the hot blast stove is provided with a heat source requirement pipeline. According to the multistage air distribution pulverized coal combustion hot blast stove, the combustion efficiency of the pulverized coal combustion hot blast stove is improved, pollution caused by the pulverized coal combustion hot blast stove to the environment is relieved, operation is convenient and rapid, and safety and reliability are achieved.
Description
Technical field
The invention belongs to heating, drying technical field, particularly relate to a kind of multistage air distribution coal dust firing hot-blast stove.
Background technology
Need the workshop of heat supply at some, in order to environment temperature be maintained in suitable scope, people install hot-blast stove through this Workplace of being everlasting.Coal-fired hot-blast stove is that one produces heat by coal burning, and pass through heat transferring medium (normally air) by heat delivery to a kind of firing equipment in production environment, mainly comprising furnace shell, is combustion chamber in the middle part of furnace shell, the top mounting heat exchanger of furnace shell inner combustion chamber.Heat exchanger comprises exhaust gases passes and air-conditioner wind passage, one end of exhaust gases passes and combustion chamber, and the other end reaches the outside of furnace shell; The side of furnace shell or both sides arrange the air inlet being used for blasting cold wind to air-conditioner wind passage, and air inlet installs air blast, and furnace shell arranges hot-blast outlet, and cold wind becomes warm braw after absorbing heat in heat exchanger and blows out from hot-blast outlet.During hot-blast stove work, coal burns in a combustion chamber as fuel, and the heat that burning produces enters exhaust gases passes with the form of heat smoke, and circulates in exhaust gases passes; Simultaneously, the cold air of the air inlet on furnace shell sidewall is blown in furnace shell by blower fan, and carries out heat exchange with the heat smoke in exhaust gases passes in air-conditioner wind passage, and the air after heating blows out from the hot-blast outlet of furnace shell, enter into the growing environment of livestock and poultry, vegetables, thus the temperature of adjusting ambient.In production, in order to ensure the Thorough combustion of coal, in combustion chamber, being provided with fire grate, below fire grate, being provided with the combustion-supporting air outlet be connected with air blast.In addition, the top of combustion chamber is provided with coal filling hole, and the bottom of combustion chamber is provided with except cinder notch, so that supplement coal and the timely waste residue cleared up coal burning and produce in time in combustion chamber.In conventional art, coal is a uncontrollable process in the burner hearth combustion of hot-blast stove, and when coal has just entered burner hearth, burning velocity is slow, and burn insufficient, the flue dust of generation is many, and the heat produced is few; Along with the increase of burning degree, coal burning speed goes is fast, and the heat of release also gets more and more, until coal in burner hearth all Thorough combustion time, thermal discharge reaches maximum; Coal amount reduces gradually subsequently, and thermal discharge is also fewer and feweri, and before next coal, thermal discharge drops to minimum.In this process, it is constant for entering in the heat exchanger of hot-blast stove for the flowing velocity of heat transferring medium, and therefore, traditional hot-blast stove all exists heat production and the inharmonic problem of heat radiation: coal early stage, and heating load is not enough, and coal burning is insufficient, smoke discharge amount is large; Mid-term, heating load exceeded the capacity of heat transmission of heat transferring medium, caused some heats not make full use of, have to by smoke stack emission in environment; Later stage heating load Shortcomings again.In addition, in the combustion chamber of hot-blast stove, opportunity of coal and coal amount all can affect the heat production speed of hot-blast stove: when environment temperature is less than the temperature of needs, in hot-blast stove, add a large amount of coal, can make hot-blast stove a large amount of heat production within a certain period of time; When environment temperature is more than or equal to the temperature of needs, in hot-blast stove, add a small amount of coal, to maintain heat supply.At present, the thermal source used in the industry such as chemical industry, pottery that China is a large amount of is coal-fired hot-blast stove or fuel-firing gas-firing hot-blast stove.China is big coal country, coal-fired hot-blast stove is widely used, and coal-fired hot-blast stove adopts traveling-grate stoker conventional in boiler to be combustion apparatus, and coal leakage quantity is large, easy over-emitting black exhaust, auxiliary device is many, and floor space is large, causes the efficiency of combustion of coal-fired hot-blast stove lower, tail gas Containing Sulfur object height, environmental pollution is comparatively serious, and igniting is slow, and temperature controls sensitive and accurate not.
Summary of the invention
The object of the invention is to overcome existing deficiency, a kind of efficiency of combustion improving pulverized coal hot air furnace is provided, alleviate the multistage air distribution coal dust firing hot-blast stove of 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 employing of its technology is: a kind of multistage air distribution coal dust firing hot-blast stove, comprise coal pulverizer, hot-blast stove gas burner, hot-blast stove, dedusting induced draught system, the right side of described coal pulverizer is provided with hot-blast stove gas burner, described hot-blast stove gas burner is by base, burner hearth, blower fan forms, the bottom surface of described base is provided with road wheel, burner hearth is provided with above base, the air outlet place of described burner hearth is provided with connection tube head, the air inlet of burner hearth is provided with bellows, the tank wall of described bellows offers air inlet, wind coal pipe is set with in described burner hearth and bellows, the air outlet outer wall of described wind coal pipe is provided with baffle ring I, be provided with in wind coal pipe and regulate air quantity pull bar, the end outer wall of described adjustment air quantity pull bar is set with baffle ring II, the end of air quantity pull bar is regulated to be provided with trapezoidal bluff body, the other end of described base top surface is provided with blower fan, the airduct tube wall of described blower fan is provided with control air-valve, the air outlet of described airduct is fixedly connected with the air inlet of bellows, the air inlet of described wind coal pipe is fixedly connected with in coal pulverizer outlet by pipeline, hot-blast stove is provided with on the right side of described hot-blast stove gas burner, described hot-blast stove is by combustion chamber, dust-settling compartment, heat exchanger forms, the middle part of described combustion chamber is provided with filter dirt case near air inlet, the right side of combustion chamber is respectively equipped with dust-settling compartment and heat exchanger successively, the right side of described hot-blast stove is provided with dedusting induced draught system, described dedusting induced draught system is connected to the air outlet place of hot-blast stove by airduct, the bottom of described hot-blast stove air outlet is provided with thermal source demand pipeline.
The bottom of described combustion chamber, dust-settling compartment and heat exchanger is equipped with dedusting fire door.
End face and the wind coal pipe air outlet of described baffle ring I form expansion angle, rear portion.
The inwall of described burner hearth and bellows and the outer wall of wind coal pipe are formed at Secondary Air deferent.
Combustion chamber in described hot-blast stove, inlet and outlet between dust-settling compartment and heat exchanger are formed as horizontal S type air channel.
Beneficial effect of the present invention: in hot-blast stove running, hot-blast stove gas burner, it can realize automatic ignition, ensures to burn without the fire in a stove before fuel is added; Hot-blast stove gas burner is furnished with blower fan, and air inlet has control air-valve, can increase and decrease coal supply amount according to heat demand; The bottom of hot-blast stove gas burner has the convenient movement that road wheel can ensure hot-blast stove gas burner; In combustion process, the coal dust that Coal-disintegrating machine provides enters wind coal pipe by coal pipe, air quantity pull bar can be regulated by automatic or manual when coal supply amount changes, wind passage mouth baffle ring is moved forward and backward, the wind speed in secondary air duct is caused to change, the distance of adjusting ignition point to bluff body can be carried out by regulating air quantity pull bar when coal changes, so that control combustion temperature, guaranteeing low nitrogen burning.Its principle is that bluff body angle is 45 °-65 °, be 110 °-130 ° with expansion angle, the rear portion angle of hot-blast stove gas burner to match, bluff body is run in the process that wind coal dust mist in wind coal pipe advances, rush at hearth wall along expansion angle, rear portion, by the participation of secondary air duct apoplexy, form backflow at hot-blast stove gas burner rear portion, heated the cold wind in air channel, make it participate in smooth combustion as early as possible, make the abundant drop out point burning coal powder of the volatile matter of coal dust, in pre-burning chamber combustion.The present invention improves the efficiency of combustion of pulverized coal hot air furnace, alleviates pulverized coal hot air furnace pollution on the environment, convenient and swift during operation, safe and reliable.
Accompanying drawing explanation
Fig. 1 is a kind of multistage air distribution coal dust firing hot-blast stove structural representation of the present invention.
Fig. 2 is hot-blast stove gas burner structural representation.
Fig. 3 is hot-blast stove gas burner sectional view.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.As Figure 1-3: a kind of multistage air distribution coal dust firing hot-blast stove, comprise coal pulverizer 1, hot-blast stove gas burner 2, hot-blast stove 3, dedusting induced draught system 4, the right side of described coal pulverizer 1 is provided with hot-blast stove gas burner 2, described hot-blast stove gas burner 2 is by base 5, burner hearth 6, blower fan 7 forms, the bottom surface of described base 5 is provided with road wheel 8, one end of base 5 end face is provided with pole 9, the top of described pole 9 is fixed with burner hearth 6, the air outlet place of described burner hearth 6 is provided with and connects tube head 10, the air inlet of burner hearth 6 is provided with bellows 11, the tank wall of described bellows 11 offers air inlet, wind coal pipe 12 is set with in described burner hearth 6 and bellows 11, the air outlet outer wall of described wind coal pipe 12 is provided with baffle ring I 13, be provided with in wind coal pipe 12 and regulate air quantity pull bar 14, the end outer wall of described adjustment air quantity pull bar 14 is set with baffle ring II 15, the end of air quantity pull bar 14 is regulated to be provided with trapezoidal bluff body 16, the other end of described base 5 end face is provided with blower fan 7, the airduct tube wall of described blower fan 7 is provided with control air-valve 17, the air outlet of described airduct is fixedly connected with the air inlet of bellows 11, the air inlet of described wind coal pipe 12 is fixedly connected with in coal pulverizer 1 outlet by pipeline, hot-blast stove 3 is provided with on the right side of described hot-blast stove gas burner 2, described hot-blast stove 3 is by combustion chamber 18, dust-settling compartment 19, heat exchanger 20 forms, the middle part of described combustion chamber 18 is provided with filter dirt case 21 near air inlet, the right side of combustion chamber 18 is respectively equipped with dust-settling compartment 19 and heat exchanger 20 successively, the right side of described hot-blast stove 3 is provided with dedusting induced draught system 4, described dedusting induced draught system 4 is connected to the air outlet place of hot-blast stove 3 by airduct, the bottom of described hot-blast stove 3 air outlet is provided with thermal source demand pipeline 22.
Described combustion chamber 18, dust-settling compartment 19 are equipped with dedusting fire door 23 with the bottom of heat exchanger 20.
End face and wind coal pipe 12 air outlet of described baffle ring I 13 form expansion angle, rear portion.
The inwall of described burner hearth 6 and bellows 11 and the outer wall of wind coal pipe 12 are formed at Secondary Air deferent 24.
Combustion chamber 18 in described hot-blast stove 3, inlet and outlet between dust-settling compartment 19 and heat exchanger 20 are formed as horizontal S type air channel.
When the present invention uses: coal cinder enters the feed hopper of coal pulverizer 1, by auger conveyor coal (particle diameter is less than 20mm) sent in coal pulverizer 1 cavity and pulverize, by the fan of coal pulverizer 1 inside, the mist of coal dust and air is sent into hot-blast stove gas burner 2 in pipeline, carry out the abundant mixing of wind coal in hot-blast stove gas burner 2 inside through its special construction, and send in hot-blast stove 3 body of heater in rotary manner and carry out abundant suspension combustion.Hot blast blended coal ash after burning enters dust-settling compartment 19, bulky grain thing will stay dust-settling compartment, enter heat exchanger 20 subsequently, after carrying out heat exchange, clean hot blast enters thermal source demand pipeline 23, hot blast containing dust enters dedusting induced draught system 22(cyclone dust removal, ceramic multi-tube dedusting), the hot blast meeting environmental emission standard after dedusting will enter air.
Claims (5)
1. a multistage air distribution coal dust firing hot-blast stove, it is characterized in that: comprise coal pulverizer, hot-blast stove gas burner, hot-blast stove, dedusting induced draught system, the right side of described coal pulverizer is provided with hot-blast stove gas burner, described hot-blast stove gas burner is by base, burner hearth, blower fan forms, the bottom surface of described base is provided with road wheel, one end of base top surface is provided with pole, the top of described pole is fixed with burner hearth, the air outlet place of described burner hearth is provided with connection tube head, the air inlet of burner hearth is provided with bellows, the tank wall of described bellows offers air inlet, wind coal pipe is set with in described burner hearth and bellows, described wind coal pipe air outlet outer wall is provided with baffle ring I, be provided with in wind coal pipe and regulate air quantity pull bar, the end outer wall of described adjustment air quantity pull bar is set with baffle ring II, the end of air quantity pull bar is regulated to be provided with trapezoidal bluff body, the other end of described base top surface is provided with blower fan, the airduct tube wall of described blower fan is provided with control air-valve, the air outlet of described airduct is fixedly connected with the air inlet of bellows, the air inlet of described wind coal pipe is fixedly connected with in coal pulverizer outlet by pipeline, hot-blast stove is provided with on the right side of described hot-blast stove gas burner, described hot-blast stove is by combustion chamber, dust-settling compartment, heat exchanger forms, the middle part of described combustion chamber is provided with filter dirt case near air inlet, the right side of combustion chamber is respectively equipped with dust-settling compartment and heat exchanger successively, the right side of described hot-blast stove is provided with dedusting induced draught system, described dedusting induced draught system is connected to the air outlet place of hot-blast stove by airduct, the bottom of described hot-blast stove air outlet is provided with thermal source demand pipeline.
2. one according to claim 1 multistage air distribution coal dust firing hot-blast stove, is characterized in that: the bottom of described combustion chamber, dust-settling compartment and heat exchanger is equipped with dedusting fire door.
3. one according to claim 1 multistage air distribution coal dust firing hot-blast stove, is characterized in that: end face and the wind coal pipe air outlet of described baffle ring I form expansion angle, rear portion.
4. one according to claim 1 multistage air distribution coal dust firing hot-blast stove, is characterized in that: the inwall of described burner hearth and bellows and the outer wall of wind coal pipe are formed at Secondary Air deferent.
5. one according to claim 1 multistage air distribution coal dust firing hot-blast stove, is characterized in that: combustion chamber in described hot-blast stove, inlet and outlet between dust-settling compartment and heat exchanger are formed as horizontal S type 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 |
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| 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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| CN105135671A true CN105135671A (en) | 2015-12-09 |
| CN105135671B 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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 (7)
| 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 |
| JPH028610A (en) * | 1988-06-24 | 1990-01-12 | Babcock Hitachi Kk | Pulverized coal combustion device |
| 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 |
-
2015
- 2015-09-10 CN CN201510572737.5A patent/CN105135671B/en active Active
Patent Citations (7)
| 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 |
| JPH028610A (en) * | 1988-06-24 | 1990-01-12 | Babcock Hitachi Kk | Pulverized coal combustion device |
| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| CN105135671B (en) | 2017-10-13 |
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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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