CN102994161A - Pulverized coal gasifying unit and boiler system - Google Patents
Pulverized coal gasifying unit and boiler system Download PDFInfo
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- CN102994161A CN102994161A CN2012105541372A CN201210554137A CN102994161A CN 102994161 A CN102994161 A CN 102994161A CN 2012105541372 A CN2012105541372 A CN 2012105541372A CN 201210554137 A CN201210554137 A CN 201210554137A CN 102994161 A CN102994161 A CN 102994161A
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Abstract
The invention provides a pulverized coal gasifying unit and a boiler system. The pulverized coal gasifying unit comprises a control cabinet, a fan and a gasifying chamber, wherein the gasifying chamber is divided into a collection chamber, a combustion chamber, a reducing chamber and a purifying chamber from bottom to top; a first feed port is formed in the combustion chamber; the fan is connected with the lower part of the gasifying chamber and used for providing air into the gasifying chamber; and the control cabinet detects a gas concentration signal in the purifying chamber through a gas sensor to control the rotation speed of the fan. The pulverized coal is put into the combustion chamber through the first feed port, and the pulverized coal and air are mixed to conduct a reducing gasifying reaction at high temperature to generate a combustible gas; the combustible gas enters the purifying chamber, and the impurities such as dust are filtered to obtain a clean combustible gas; then the combustible gas can be conveyed into a gas boiler for use; and thus, the atmospheric pollution caused by using fuel coal is reduced, the gas boiler can safely and reliably use the energy of the fuel coal, and the reliability of the boiler system is improved.
Description
Technical field
The present invention relates to boiler plant, relate in particular to a kind of coal dust gasification unit and boiler systems.
Background technology
Boiler is divided into oil-firing boiler, gas fired-boiler and coal firing boiler according to the fuel difference of using.China is that producing coal was beaten, and coal firing boiler is by the wide use of sending out.For protection of the environment, reduce the boiler smoke discharging to the pollution of atmosphere, country has taked multiple reduction of discharging measure to the boiler of the natural coal cinder that burns, and encourages the development and utilization of clear energy sources.At present, the boiler of metabolic water coal slurry, on a large scale promotion and application.The fuel of coal water slurry boiler is that natural coal cinder is processed into coal dust, with coal dust furnishing coal water slurry, makes clean cool water mixture burning agent after the processing such as desulfurization.During use, with high pressure gas coal water slurry is sprayed into it is fully burnt, thereby greatly alleviated the pollution of flue gas to atmosphere, be subject to professional person's consistent favorable comment.But coal water slurry boiler coking problem occurs easily in combustion processes, causes the energy of the utilization fire coal that boiler still can't be safe and reliable, and the reliability of boiler is lower.
Summary of the invention
Technical problem to be solved by this invention is: a kind of coal dust gasification unit and boiler systems are provided, solve the lower defective of reliability of boiler in the prior art, improve the reliability of boiler systems.
Technical scheme provided by the invention is, a kind of coal dust gasification unit, comprise housing, blower fan and vaporizer, described vaporizer is divided into collecting chamber, combustion chamber, reduction chamber and decontamination chamber from the bottom to top, be provided with the first dog-house on the described combustion chamber, the bottom that described blower fan is connected to described vaporizer is used for providing air to described vaporizer, and described housing detects gas concentration signal in the described decontamination chamber to control the rotating speed of described blower fan by gas sensor.
Coal dust gasification unit provided by the invention, by the first dog-house coal dust is put in the combustion chamber, the part coal dust generation heat that in the combustion chamber, burns, remaining coal dust enters into the reduction chamber under the drive of warm air, coal dust and air mixed are also at high temperature carried out reduction and gaseous reaction generation inflammable gas, inflammable gas enters into the decontamination chamber and filters the inflammable gas that dust and other impurities obtains cleaning, inflammable gas just can be transported in the gas fired-boiler and use, minimizing is because using the coal-fired pollution that atmosphere is caused, simultaneously also avoid occurring the phenomenon of coking, make the energy of the utilization fire coal that gas fired-boiler can be safe and reliable, improved the reliability of boiler systems.
Aforesaid coal dust gasification unit, described reduction is provided with the second dog-house on the chamber.
Aforesaid coal dust gasification unit, described decontamination chamber is connected with pressure equalizing chamber.
Technical scheme provided by the invention is, a kind of boiler systems, comprise gas fired-boiler, also comprise the coal dust gasification unit, described coal dust gasification unit comprises housing, blower fan and vaporizer, described vaporizer is divided into collecting chamber, combustion chamber, reduction chamber and decontamination chamber from the bottom to top, be provided with the first dog-house on the described combustion chamber, the bottom that described blower fan is connected to described vaporizer is used for providing air to described vaporizer, and described housing detects gas concentration signal in the described decontamination chamber to control the rotating speed of described blower fan by gas sensor; Described decontamination chamber is connected with described gas fired-boiler.
Boiler systems provided by the invention, by the first dog-house coal dust is put in the combustion chamber, the part coal dust generation heat that in the combustion chamber, burns, remaining coal dust enters into the reduction chamber under the drive of warm air, coal dust and air mixed are also at high temperature carried out reduction and gaseous reaction generation inflammable gas, inflammable gas enters into the decontamination chamber and filters the inflammable gas that dust and other impurities obtains cleaning, inflammable gas just can be transported in the gas fired-boiler and use, minimizing is because using the coal-fired pollution that atmosphere is caused, simultaneously also avoid occurring the phenomenon of coking, make the energy of the utilization fire coal that gas fired-boiler can be safe and reliable, improved the reliability of boiler systems.
Aforesaid boiler systems, described reduction is provided with the second dog-house on the chamber.
Aforesaid boiler systems, described decontamination chamber is connected with pressure equalizing chamber, and described decontamination chamber is communicated with the inlet mouth of described gas fired-boiler by described pressure equalizing chamber.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do one to the accompanying drawing of required use in embodiment or the description of the Prior Art and introduce simply, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of coal dust gasification units example of the present invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
As shown in Figure 1, this enforcement powder gasification unit, comprise housing 2, blower fan 3 and vaporizer 1, vaporizer 1 is divided into collecting chamber 11, combustion chamber 12, reduction chamber 13 and decontamination chamber 14 from the bottom to top, be provided with the first dog-house 121 on the combustion chamber 12, the bottom that blower fan 2 is connected to vaporizer 1 is used for providing air to vaporizer 1, and housing 2 is by the rotating speed of the gas concentration signal in gas sensor (not shown) the detection decontamination chamber 14 with control blower fan 2.
Particularly, present embodiment coal dust gasification unit can add coal dust by the first dog-house 121 in combustion chamber 12, the part coal dust generation heat that in combustion chamber 12, burns, high temperature air enters into reduction chamber 13 with remaining coal dust and carries out reduction reaction generation inflammable gas, such as gases such as carbon monoxide.Inflammable gas is mingled with dust particles and enters into decontamination chamber 14, dust particles gravitate in decontamination chamber 14 falls to obtaining the inflammable gas of cleaning gradually, the inflammable gas of output can be supplied with gas fired-boiler in the decontamination chamber 14, thereby the utilization that realizes more environmental protection is coal-fired, the phenomenon of avoiding adopting coal water slurry and coking occurring realizes that safe and reliable utilization is coal-fired.Wherein, housing 2 can be according to the concentration of gas in the decontamination chamber 14, and the rotating speed of control blower fan 3 is to guarantee the generation of inflammable gas.
Further, in order to obtain more inflammable gas, reduction is provided with the second dog-house 131 on the chamber 13.Concrete, in reduction chamber 13, replenish coal dust by the second dog-house 131, guarantee reduction and gaseous carrying out continuously, improve the output of inflammable gas.Wherein, the input ratio of the first dog-house 121 and the second dog-house 131, the signal feedback of the gas sensor that can obtain by housing 2 is adjusted, make gasification by the primary combustion reduction reaction after solid by-product carried out centralized collection.
Further, can export stably inflammable gas in order to make present embodiment coal dust gasification unit, decontamination chamber 14 is connected with pressure equalizing chamber 4.Concrete, decontamination chamber 14 can be connected with gas fired-boiler by pressure equalizing chamber 4, guarantees that gas fired-boiler can obtain stably inflammable gas of pressure.
The present invention also provides a kind of boiler systems, comprise gas fired-boiler, also comprise the coal dust gasification unit, the coal dust gasification unit comprises housing, blower fan and vaporizer, vaporizer is divided into collecting chamber, combustion chamber, reduction chamber and decontamination chamber from the bottom to top, blower fan is connected to the bottom of vaporizer, be provided with the first dog-house on the combustion chamber, the bottom that blower fan is connected to vaporizer is used for providing air to vaporizer, and housing is by the rotating speed of the gas concentration signal in the gas sensor detection decontamination chamber with the control blower fan; The decontamination chamber is connected with gas fired-boiler.
Particularly, the coal dust gasification unit in the present embodiment can adopt the coal dust gasification unit in the coal dust gasification units example of the present invention, and its concrete structure can referring to the record of coal dust gasification units example of the present invention and accompanying drawing 1, not repeat them here.
Coal dust gasification unit provided by the invention and boiler systems, by the first dog-house coal dust is put in the combustion chamber, the part coal dust generation heat that in the combustion chamber, burns, remaining coal dust enters into the reduction chamber under the drive of warm air, coal dust and air mixed are also at high temperature carried out reduction and gaseous reaction generation inflammable gas, inflammable gas enters into the decontamination chamber and filters the inflammable gas that dust and other impurities obtains cleaning, inflammable gas just can be transported in the gas fired-boiler and use, minimizing is because using the coal-fired pollution that atmosphere is caused, simultaneously also avoid occurring the phenomenon of coking, make the energy of the utilization fire coal that gas fired-boiler can be safe and reliable, improved the reliability of boiler systems.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (6)
1. coal dust gasification unit, it is characterized in that, comprise housing, blower fan and vaporizer, described vaporizer is divided into collecting chamber, combustion chamber, reduction chamber and decontamination chamber from the bottom to top, be provided with the first dog-house on the described combustion chamber, the bottom that described blower fan is connected to described vaporizer is used for providing air to described vaporizer, and described housing detects gas concentration signal in the described decontamination chamber to control the rotating speed of described blower fan by gas sensor.
2. coal dust gasification unit according to claim 1 is characterized in that, described reduction is provided with the second dog-house on the chamber.
3. coal dust gasification unit according to claim 1 is characterized in that, described decontamination chamber is connected with pressure equalizing chamber.
4. boiler systems, comprise gas fired-boiler, it is characterized in that, also comprise the coal dust gasification unit, described coal dust gasification unit comprises housing, blower fan and vaporizer, described vaporizer is divided into collecting chamber, combustion chamber, reduction chamber and decontamination chamber from the bottom to top, be provided with the first dog-house on the described combustion chamber, the bottom that described blower fan is connected to described vaporizer is used for providing air to described vaporizer, and described housing detects gas concentration signal in the described decontamination chamber to control the rotating speed of described blower fan by gas sensor; Described decontamination chamber is connected with described gas fired-boiler.
5. boiler systems according to claim 4 is characterized in that, described reduction is provided with the second dog-house on the chamber.
6. boiler systems according to claim 4 is characterized in that, described decontamination chamber is connected with pressure equalizing chamber, and described decontamination chamber is communicated with the inlet mouth of described gas fired-boiler by described pressure equalizing chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105541372A CN102994161A (en) | 2012-12-19 | 2012-12-19 | Pulverized coal gasifying unit and boiler system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105541372A CN102994161A (en) | 2012-12-19 | 2012-12-19 | Pulverized coal gasifying unit and boiler system |
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| CN102994161A true CN102994161A (en) | 2013-03-27 |
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| CN2012105541372A Pending CN102994161A (en) | 2012-12-19 | 2012-12-19 | Pulverized coal gasifying unit and boiler system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103666571A (en) * | 2013-11-26 | 2014-03-26 | 潘高峰 | Gas producer |
| CN108951367A (en) * | 2018-09-04 | 2018-12-07 | 中交公局海威工程建设有限公司 | A kind of method that asphalt mixing plant coal changes gas heating |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10274056A (en) * | 1997-03-31 | 1998-10-13 | Hitachi Ltd | Coal gasifying power generating plant and operating method thereof |
| JP2002105462A (en) * | 2000-09-28 | 2002-04-10 | Mitsubishi Heavy Ind Ltd | Coal gasification method and apparatus therefor |
| CN101381629A (en) * | 2007-09-07 | 2009-03-11 | 彭思尧 | Dry coal dust gasification furnace for carbon dioxide emission reduction |
| CN201401781Y (en) * | 2009-03-11 | 2010-02-10 | 侯文锋 | Biomass gasification combustion system of industrial boiler |
| CN101649226A (en) * | 2009-09-11 | 2010-02-17 | 北京震宇成套电气设备集团 | Method for preparing fuel gas by gasifying biomass materials and device thereof |
| CN201704291U (en) * | 2010-02-10 | 2011-01-12 | 马鞍山科达洁能有限公司 | Gas generator |
| CN201842824U (en) * | 2010-08-30 | 2011-05-25 | 陈荣均 | Civil coal gasification furnace |
-
2012
- 2012-12-19 CN CN2012105541372A patent/CN102994161A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10274056A (en) * | 1997-03-31 | 1998-10-13 | Hitachi Ltd | Coal gasifying power generating plant and operating method thereof |
| JP2002105462A (en) * | 2000-09-28 | 2002-04-10 | Mitsubishi Heavy Ind Ltd | Coal gasification method and apparatus therefor |
| CN101381629A (en) * | 2007-09-07 | 2009-03-11 | 彭思尧 | Dry coal dust gasification furnace for carbon dioxide emission reduction |
| CN201401781Y (en) * | 2009-03-11 | 2010-02-10 | 侯文锋 | Biomass gasification combustion system of industrial boiler |
| CN101649226A (en) * | 2009-09-11 | 2010-02-17 | 北京震宇成套电气设备集团 | Method for preparing fuel gas by gasifying biomass materials and device thereof |
| CN201704291U (en) * | 2010-02-10 | 2011-01-12 | 马鞍山科达洁能有限公司 | Gas generator |
| CN201842824U (en) * | 2010-08-30 | 2011-05-25 | 陈荣均 | Civil coal gasification furnace |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103666571A (en) * | 2013-11-26 | 2014-03-26 | 潘高峰 | Gas producer |
| CN108951367A (en) * | 2018-09-04 | 2018-12-07 | 中交公局海威工程建设有限公司 | A kind of method that asphalt mixing plant coal changes gas heating |
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Application publication date: 20130327 |