CN205838912U - A kind of coke oven combustion chamber segmentation supply heater - Google Patents
A kind of coke oven combustion chamber segmentation supply heater Download PDFInfo
- Publication number
- CN205838912U CN205838912U CN201620628443.XU CN201620628443U CN205838912U CN 205838912 U CN205838912 U CN 205838912U CN 201620628443 U CN201620628443 U CN 201620628443U CN 205838912 U CN205838912 U CN 205838912U
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- Prior art keywords
- oxygen
- coke oven
- air
- combustor
- secondary wind
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Abstract
The utility model discloses a kind of coke oven combustion chamber segmentation supply heater, relate to coke oven for iron, including automatically heating homoiothermic, oxygen-enriched air secondary wind supply air distribution and oxygen-enriched air gas supply pipe system；Oxygen-enriched air secondary wind supply blowing system includes the secondary wind pipeline connected by aerator with oxygen-enriched producing equipment, and secondary wind pipeline is in the top of combustor is by combustor, and end is positioned at the middle and upper part of combustor；Oxygen-enriched air gas supply pipe system is connection bottom of combustion chamber and the inclined air line of regenerator top, and regenerator bottom arranges air inlet top mouth；Automatically heating thermoregulating system electrically connects with oxygen-enriched air effusion meter, mass air flow sensor, gas flow meter, temperature measuring equipment.This utility model can be widely applied to the uniform heating of 4.3 meters and the improvement of 5.5 meters of coke ovens, the beneficially nitrogen oxides of coke oven chimney and coke oven, improves the quality of coke, saves coke oven heating coal gas amount, have certain economic benefit.
Description
Technical field
This utility model relates to coke oven for iron, is specifically related to a kind of coke oven combustion chamber segmentation supply heater.
Background technology
Combustion gas can produce nitrogen oxides when coke oven combustion chamber burns, including NO, N2O, NO2, N2O3, N2O4, N2O5
Deng, and NO_x in Air Environment is mainly with NO and NO2Presented in, usual NO accounts for about 95%, NO2It is about 5%, greatly
In gas, NO can slowly be converted into NO2。
The formation mechenism generating nitrogen oxides in combustion process has 3 types: one is fuel NO, solid in fuel
Determine nitrogen and generate；Two is thermal NO, and at high temperature nitrogen and oxygen react generation；Three is momentary type, due to carbon containing freely
The existence of base and generate nitrogen oxides.And produced nitrogen oxides is mainly thermal NO in coke oven combustion process.
Domestic large capacity coke oven all uses spray, poor gas and air side under twinflue, waste gas circulation, coke-stove gas to enter
Form, vertebration rationally heats more uniform, and hot working efficiency is higher.But, China's overwhelming majority coke furnace carbonization chamber is 4.3 meters
With 5.5 meters, use and spray version under twinflue, waste gas circulation, coke-stove gas, but nitrogen oxidation in the flue gas of coke oven chimney
Thing content is at 600mg/Nm3—1000mg/Nm3.So, this part of coke oven is transformed, to reduce in coke oven combustion process
Nitrous oxides concentration, be China's medium and small capacity coke oven equipment urgent problem.
The problem high in order to solve the nitrogen oxides in effluent concentration of existing medium and small capacity coke oven existence, and provide one
Coke oven combustion chamber segmentation supply heater.
Summary of the invention
The purpose of this utility model is to provide a kind of coke oven combustion chamber segmentation supply heater.
This utility model is achieved through the following technical solutions:
A kind of coke oven combustion chamber segmentation supply heater, it is characterised in that include automatically heating thermoregulating system, oxygen-enriched sky
Gas secondary wind supply blowing system and oxygen-enriched air gas supply pipe system；
Wherein said oxygen-enriched air secondary wind supply blowing system, connects with oxygen-enriched producing equipment including by aerator
Secondary wind pipeline, described secondary wind pipeline from the top of combustor by combustor, on end is positioned in combustor
At portion；
Described oxygen-enriched air gas supply pipe system is connection bottom of combustion chamber and the inclined air line of regenerator top,
Described regenerator bottom arranges air inlet top mouth；
The described thermoregulating system of heating automatically includes computer control system, the oxygen-enriched air being arranged on secondary wind pipeline
Effusion meter, it is arranged on the mass air flow sensor of air inlet top mouth, the gas flow meter being arranged on gas piping and is arranged on burning
Indoor temperature measuring equipment, described computer control system and oxygen-enriched air effusion meter, mass air flow sensor, gas flow meter, survey
Temperature device electrical connection.
Further, described secondary wind pipeline is heat resisting pipe or refractory material is fired and formed.
Described top of combustion chamber is provided with peephole special form brick, and special form brick is reserved with side cavities, described secondary wind
Pipeline is passed through in side cavities, enters from top to bottom at the inside 2/3 of combustor.
It is provided with scalable turnover panel at described air inlet top mouth.
This utility model, by adjusting the air inlet top mouth of coke oven, reduces primary air coefficient of excess so that enter burning
The air shortcoming of room, coal gas forms imperfect combustion under oxygen debt state, forms reducing atmosphere at flame region so that
The a part of nitrogen oxides formed is reduced into nitrogen；Flame elongates simultaneously, is conducive to high to heating, improves the one-tenth of top charge of coke
Ripe degree；Unburnt flame mixes with the secondary oxygen-enriched air allocated at combustor internal upper part, forms secondary and burns completely；
Its Computer heats thermoregulating system automatically, is by on-line continuous temperature measuring equipment, continual carries out coke oven combustion chamber
Temperature detection, according to temperature and the deviation of target temperature of detection, by computer program control, regulates the flow of heating gas
With the aperture of flue regulation valve, optimize burning condition, reach the purpose automatically heated, and computer is heated automatically thermoregulating system
Combine with oxygen-enriched air secondary wind supply blowing system, improve and optimize the fired state of coke oven combustion chamber, secondary
Reconstruct combustion atmosphere, forming the reducing atmosphere nitrogen oxides that generated of reduction is nitrogen, effectively nitrogen oxides in reduction chimney
Concentration.Its Computer heats thermoregulating system automatically, is the technological parameter according to coke oven shove charge coal, pushing coke operation plan, Jiao
Furnace thermal efficiencies etc. calculate coking heat consumption, then calculate further according to the calorific value of heating coal gas, temperature, pressure etc. and add hot coal
The design load of throughput adjusts the robot control system(RCS) of gas flow and air mass flow.
This utility model, by adjusting the primary air infeed amount of combustor, improves the secondary fluidised form reconstruct of gas-fired,
Extend the length of flame, produce reducing atmosphere, be innoxious nitrogen in order to reduce a part of nitrogen oxides formed, fall
The discharged nitrous oxides concentration of low coke oven chimney, reduces the operating cost of chimney denitrating system.
This utility model can be widely applied to the coal gas of 4.3 meters and 5.5 meters coke ovens and automatically heats and combustor secondary fluidised form
The improvement of reconstruct, the beneficially nitrogen oxides of coke oven chimney and the uniform heating of coke oven, improve the quality of coke, saved Jiao
Stove heating gas amount, has certain economic benefit.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of special form brick；
In figure: 1-gas piping, 2-branch gas tube, 3-secondary wind pipeline, 4-special form brick, 5-combustor, 6-carbonization chamber, 7-
Furnace wall, 8-inclined air line, 9-regenerator, 10-flue, 11-peephole, 12-furnace roof brick.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
A kind of coke oven combustion chamber segmentation supply heater as shown in Figure 1, including automatically heating thermoregulating system, oxygen-enriched sky
Gas secondary wind supply blowing system and oxygen-enriched air gas supply pipe system；
Wherein said oxygen-enriched air secondary wind supply blowing system, connects with oxygen-enriched producing equipment including by aerator
Secondary wind pipeline 3, described secondary wind pipeline 3 is from the top of combustor 5 by combustor 5, and end is positioned at combustor 5
At middle and upper part；
Described oxygen-enriched air gas supply pipe system is bottom connection combustor 5 and the inclined air hose at regenerator 9 top
Road 8, arranges air inlet top mouth bottom described regenerator 9；
The described thermoregulating system of heating automatically includes computer control system, the oxygen-enriched sky being arranged on secondary wind pipeline 3
Air-flow gauge, the mass air flow sensor being arranged on air inlet top mouth, the gas flow that is arranged on gas piping 1, branch gas tube 2
Meter and the temperature measuring equipment being arranged in combustor 5, described computer control system and oxygen-enriched air effusion meter, air mass flow
Meter, gas flow meter, temperature measuring equipment electrically connect.
Be arranged on combustor 5 top furnace roof brick 12 for see fire special form brick 4 structural representation as in figure 2 it is shown,
Offering peephole 11 on special form brick 4, and be reserved with side cavities, described secondary wind pipeline 3 is passed through in side cavities, from upper and
At the inside 2/3 of lower entrance combustor 5, secondary wind pipeline 3 is fired form for heat resisting pipe or refractory material.
During operation, coal gas is entered in combustor 5 by the branch gas tube 2 of each combustor through gas piping 1, and air is from air inlet
Mouthful top mouth enters in regenerator 9, after the checker brick of regenerator 9 are by air preheat, enters combustor by inclined air line 8
In 5, burning with coal gas mixing, the furnace wall 7 of both sides, the coal that heat is passed in carbonization chamber 6 by furnace wall 7 carrys out coking.Coal
Gas is in the case of oxygen debt, and flame elongates, and imperfect combustion occurs, and forms reducing atmosphere, will have been formed in combustion process
A part of nitrogen oxides be reduced into nitrogen, it is oxygen-enriched that gas burner runs at the 2/3 of combustor 9 that spontaneous combustion ceiling portion is passed through
, there is second-time burning, make unburnt coal gas fully burn at this in air, the waste gas after burning is retracted into from adjacent combustor
In the regenerator 9 of coke oven bottom, heat checker brick, subsequently into flue 10, enter smokestack；Wherein by automatically heating homoiothermic
System on-line continuous carries out thermometric to combustor, controls air inlet top mouth and the air inflow of gas piping, reduces primary air mistake
Surplus coefficient so that entering the air shortcoming of combustor, coal gas forms imperfect combustion under oxygen debt state, is formed at flame region
Reducing atmosphere so that a part of nitrogen oxides formed is reduced into nitrogen, flame elongates simultaneously, beneficially Gao Xiangjia
Heat, improves the Maturity of top charge of coke；Controlled the air inflow of secondary wind pipeline by heating thermoregulating system automatically, make not exclusively to fire
The flame burnt mixes with the secondary oxygen-enriched air being passed through at combustor internal upper part, forms secondary and burns completely.
Claims (4)
1. a coke oven combustion chamber segmentation supply heater, it is characterised in that include automatically heating thermoregulating system, oxygen-enriched air
Secondary wind supply blowing system and oxygen-enriched air gas supply pipe system；
Wherein said oxygen-enriched air secondary wind supply blowing system, including two connected with oxygen-enriched producing equipment by aerator
Secondary wind pipeline, described secondary wind pipeline is in the top of combustor is by combustor, and end is positioned at the middle and upper part of combustor；
Described oxygen-enriched air gas supply pipe system is connection bottom of combustion chamber and the inclined air line of regenerator top, described
Regenerator bottom air inlet top mouth is set；
The oxygen-enriched air flow that the described thermoregulating system of heating automatically includes computer control system, is arranged on secondary wind pipeline
Count, be arranged on the mass air flow sensor of air inlet top mouth, the gas flow meter being arranged on gas piping and be arranged in combustor
Temperature measuring equipment, described computer control system and oxygen-enriched air effusion meter, mass air flow sensor, gas flow meter, thermometric dress
Put electrical connection.
Coke oven combustion chamber segmentation the most according to claim 1 supply heater, it is characterised in that described secondary air channel
Road is heat resisting pipe or refractory material is fired and formed.
Coke oven combustion chamber segmentation the most according to claim 1 and 2 supply heater, it is characterised in that described burning
Ceiling portion is provided with peephole special form brick, and special form brick is reserved with side cavities, and described secondary wind pipeline is passed through in side cavities, from
Upper and at the inside 2/3 of lower entrance combustor.
Coke oven combustion chamber segmentation the most according to claim 1 and 2 supply heater, it is characterised in that described air inlet
It is provided with scalable turnover panel at mouth top mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620628443.XU CN205838912U (en) | 2016-06-23 | 2016-06-23 | A kind of coke oven combustion chamber segmentation supply heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620628443.XU CN205838912U (en) | 2016-06-23 | 2016-06-23 | A kind of coke oven combustion chamber segmentation supply heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205838912U true CN205838912U (en) | 2016-12-28 |
Family
ID=57620525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620628443.XU Withdrawn - After Issue CN205838912U (en) | 2016-06-23 | 2016-06-23 | A kind of coke oven combustion chamber segmentation supply heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205838912U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105925276A (en) * | 2016-06-23 | 2016-09-07 | 山西长林能源科技有限公司 | Staged air supplying and heating device and method for combustion chamber of coke furnace |
| CN108728125A (en) * | 2018-07-31 | 2018-11-02 | 中冶焦耐(大连)工程技术有限公司 | Heated height variable rich gas heating coke oven heating system and its adjusting method |
-
2016
- 2016-06-23 CN CN201620628443.XU patent/CN205838912U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105925276A (en) * | 2016-06-23 | 2016-09-07 | 山西长林能源科技有限公司 | Staged air supplying and heating device and method for combustion chamber of coke furnace |
| CN105925276B (en) * | 2016-06-23 | 2018-11-27 | 山西长林能源科技有限公司 | A kind of coke oven combustion chamber segmentation gas supply heating device and its method |
| CN108728125A (en) * | 2018-07-31 | 2018-11-02 | 中冶焦耐(大连)工程技术有限公司 | Heated height variable rich gas heating coke oven heating system and its adjusting method |
| CN108728125B (en) * | 2018-07-31 | 2024-01-26 | 中冶焦耐(大连)工程技术有限公司 | Heating system of gas-rich heating coke oven with variable heating height and adjusting method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161228 Effective date of abandoning: 20181127 |
|
| AV01 | Patent right actively abandoned |