CN202733929U - Energy-saving emission-reduction pulverized coal combustion device - Google Patents
Energy-saving emission-reduction pulverized coal combustion device Download PDFInfo
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- CN202733929U CN202733929U CN 201220288798 CN201220288798U CN202733929U CN 202733929 U CN202733929 U CN 202733929U CN 201220288798 CN201220288798 CN 201220288798 CN 201220288798 U CN201220288798 U CN 201220288798U CN 202733929 U CN202733929 U CN 202733929U
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- pulverized coal
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Abstract
The utility model relates to a combustion device for combusting pulverized coal, and in particular relates to an energy-saving emission-reduction pulverized coal combustion device. The energy-saving emission-reduction pulverized coal combustion device comprises a pulverized coal machine, a coal conveying flexible pipe, a blower, a combustion furnace and an electric control system, wherein a pulverized coal conveying pipe is arranged between the blower and the combustion furnace, and is provided with a pulverized coal conveying screw which is connected with the pulverized coal machine through the coal conveying flexible pipe. The pulverized coal machine provided by the utility model can grind coal particles into fine pulverized coal, and the combustion is more full and energy-saving; a water bath dust removing chamber reduces the pollution of the atmospheric environment by dust; pulverized coal is sprayed into the combustion furnace for combustion through a pipeline, and manual participation is not required, so that the labor intensity is lowered, the operation is convenient, and the working site is neat; and the pulverized coal conveying screw and the blower can control the coal amount and speed of sprayed pulverized coal, can reduce influences on heat utilization equipment by artificial factors, and the coordination of coal supply amount and the required heat achieves the best effect.
Description
Technical field
The utility model relates to a kind of burner of combusting coal fines, more specifically to a kind of energy-saving and emission-reduction pulverized coalapparatus.
Background technology
Existing coal-burning boiler generally is by body of heater, burner hearth, fire grate and flue form, directly burning on the fire grate of fire coal in burner hearth during the point combusting boiler, because burning is insufficient, the mode soot emissions of this direct burning are seriously polluted, be difficult to reach the environmental protection standard requirement, the emission compliance of coal-burning boiler flue dust is the restriction bottleneck of coal-burning boiler development always for many years, in order to solve this technical barrier, after grinding to form particle with fire coal, existing coal-burning boiler employing drops into again the burner hearth internal combustion, because fine coal has increased the contact-making surface with air, sufficient combustion, it is fast that the interior temperature of burner hearth is risen, and reduced simultaneously in the flue dust because of insufficient granule content that produces that burns.
In normal production process, the heat required with hot equipment often is in fluctuation status, requires the coal supply amount to change thereupon, the most employing of existing equipment manually adjusted the coal supply amount, needs manpower to go up coal every now and then in burner hearth, and labour intensity is large, working environment is more abominable, and is large to the harm of human body; And human factor coal supply amount and the inharmonic situation of institute's calorific requirement often occur on very large with hot equipment normal operation impact.
The utility model content
The purpose of this utility model is to overcome the above-mentioned deficiency of prior art, and a kind of easy to operate energy-saving and emission-reduction pulverized coalapparatus is provided.
To achieve these goals, the technical solution adopted in the utility model is:
A kind of energy-saving and emission-reduction pulverized coalapparatus, comprise coal pulverizer, defeated coal flexible pipe, pressure fan, combustion furnace and electric-control system, be provided with the fine coal carrier pipe between described pressure fan and the combustion furnace, be provided with the fine coal conveyor screw at described fine coal carrier pipe, described fine coal conveyor screw is connected with coal pulverizer by defeated coal flexible pipe.
In the above-mentioned energy-saving and emission-reduction pulverized coalapparatus, described pressure fan is small-power blower fan or air compressor machine, and its power bracket is 100-200 watt.
In the above-mentioned energy-saving and emission-reduction pulverized coalapparatus, described coal pulverizer can be ground to the fineness of coal-burning particle the 80-200 order, make coal-burning particle become more small coal dust, the heat of coal dust moment burning dispensing is high, it is more abundant to burn, more energy-conservation, reduced simultaneously in the flue dust because of insufficient granule content that produces that burns.
In the above-mentioned energy-saving and emission-reduction pulverized coalapparatus, described combustion furnace comprises smoke exhaust pipe, and described smoke exhaust pipe is connected with the water bath dust-removing chamber, and the water bath dust-removing chamber is used for dissolving flue dust dust, reduces dust to the pollution of atmospheric environment.
In the above-mentioned energy-saving and emission-reduction pulverized coalapparatus, the bottom of described coal dust conveyor screw is provided with trumpet-shaped opening, and the coal dust conveyor screw is connected on the fine coal carrier pipe by trumpet-shaped opening; Described coal dust conveyor screw also is connected with coal pulverizer by defeated coal flexible pipe.
In the above-mentioned energy-saving and emission-reduction pulverized coalapparatus, the front end of described fine coal carrier pipe is connected with fine coal and sprays into mouth.
In the above-mentioned energy-saving and emission-reduction pulverized coalapparatus, described fine coal sprays into the axis that mouth and the inlet seal of combustion furnace are connected and favour entrance.
In the above-mentioned energy-saving and emission-reduction pulverized coalapparatus, described electric-control system comprises frequency-variable controller, and frequency-variable controller is used for the speed of service of motor on the control fine coal conveyor screw, and described frequency-variable controller is used for the rotating speed of control pressure fan.
In the above-mentioned energy-saving and emission-reduction pulverized coalapparatus, described electric-control system comprises pyrostat, and described pyrostat is arranged on the inside of coal dust furnace, for detection of the temperature in the combustion furnace.
In the above-mentioned energy-saving and emission-reduction pulverized coalapparatus, described electric-control system also comprises the automatic electronic igniting device, and described automatic electronic igniting device is arranged on the bottom of combustion furnace.Carry out ignition operation by the automatic electronic igniting device, not only can increase work efficiency, and safe and reliable, easy operating.
Operation principle of the present utility model: after the pressure fan of energy-saving and emission-reduction pulverized coalapparatus and coal dust conveyor screw start, coal dust after grinder grinds enters into the coal dust conveyor screw through defeated coal flexible pipe, enter the fine coal carrier pipe by the coal dust conveyor screw again, the speed of service of motor is so that the coal amount that control fine coal enters the fine coal carrier pipe on the frequency-variable controller control coal dust conveyor screw, pressure fan tangentially is blown into the coal dust in the fine coal carrier pipe in the combustion furnace again, because temperature is very high in the combustion furnace, be enough to reach the burning point of fine coal, fine coal rotates in the combustion chamber and is lighted, because hot air rising speed is fast, the coal dust that is firing is evenly to disperseing all around and fully burning.
Compared with prior art, the beneficial effects of the utility model:Coal pulverizer in the utility model can grind to form coal-burning particle more small coal dust, and the heat of coal dust moment burning dispensing is high, and it is more abundant, more energy-conservation to burn, and has reduced simultaneously in the flue dust because of insufficient granule content that produces that burns; Dust in the water bath dust-removing chamber dissolving flue dust reduces dust to the pollution of atmospheric environment.Coal dust after the pulverizing sprays in the combustion furnace by pipeline and burns, and need not manually participate in, and has reduced labour intensity, and easy to operate, and the working site is also cleaner and tidier simultaneously.Coal dust conveyor screw and pressure fan can be controlled coal amount and the speed that coal dust sprays into, and reduce human factor to the impact with hot equipment, make the coordination of coal supply amount and institute's calorific requirement reach optimum efficiency.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Mark among the figure: the 1-coal pulverizer, 2-fails the coal flexible pipe, the 3-pressure fan, the 4-combustion furnace, the 5-electric-control system, the 6-smoke exhaust pipe, 7-water bath dust-removing chamber, 8-fine coal carrier pipe, 9-fine coal sprays into mouth, 10-fine coal conveyor screw, 11-motor.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
Embodiment 1
As shown in Figure 1, the energy-saving and emission-reduction pulverized coalapparatus of present embodiment comprises coal pulverizer 1, defeated coal flexible pipe 2, pressure fan 3, combustion furnace 4 and electric-control system 5, combustion furnace comprises smoke exhaust pipe 6, described smoke exhaust pipe 6 is connected with water bath dust-removing chamber 7, be provided with fine coal carrier pipe 8 between described pressure fan 3 and the combustion furnace 4, the front end of fine coal carrier pipe 8 is connected with fine coal and sprays into mouth 9, described fine coal sprays into the axis that mouth 9 and the inlet seal of combustion furnace 4 are connected and favour entrance, be provided with fine coal conveyor screw 10 at described fine coal carrier pipe 8, the bottom of described coal dust conveyor screw 10 is provided with trumpet-shaped opening, coal dust conveyor screw 10 is connected on the fine coal carrier pipe 8 by trumpet-shaped opening, and coal dust conveyor screw 1 also is connected with coal pulverizer 1 by defeated coal flexible pipe 2.Electric-control system 5 comprises two frequency-variable controllers, and a frequency-variable controller is used for the speed of service of motor 11 on the control fine coal conveyor screw 10, the rotating speed of another control pressure fan 3.
The operation principle of present embodiment: after the pressure fan 3 of energy-saving and emission-reduction pulverized coalapparatus and coal dust conveyor screw 10 start, tiny coal dust after grinder 1 grinds enters into coal dust conveyor screw 10 through defeated coal flexible pipe 2, carry spiral shell 10 precessions to enter fine coal carrier pipe 8 by coal dust again, the speed of service of motor 11 is so that the coal amount that control fine coal enters fine coal carrier pipe 8 on the electric-control system 5 control coal dust conveyor screws 10, pressure fan 3 tangentially is blown into the coal dust in the fine coal carrier pipe 8 in the combustion furnace 4 again, the rotating speed of electric-control system 5 control pressure fans 3 is so that the control coal dust sprays into the speed of combustion furnace 4, because combustion furnace 4 interior temperature are very high, be enough to reach the burning point of fine coal, fine coal rotates in the combustion chamber and is lighted, because hot air rising speed is fast, the coal dust that is firing is evenly to disperseing all around and fully burning.The flue dust that produces behind the coal dust firing enters into water bath dust-removing chamber 7 by smoke exhaust pipe 6, and the most of particles in the flue dust reduce flue dust to the destruction of atmospheric environment through water-soluble solution postprecipitation.
The energy-saving and emission-reduction pulverized coalapparatus of present embodiment connects coal pulverizer 1 and combustion furnace 4 by pipeline, automatically raw coal is ground, carries, sprays into, and need not manually participate in, and has reduced labour intensity, and easy to operate, and the working site is also cleaner and tidier simultaneously.Electric-control system 5 can be according to the speed of service of accurately controlling coal dust conveyor screw 10 and pressure fan 3 is set, coal amount and speed that coal dust conveyor screw 10 and pressure fan 3 and then control coal dust spray into, reduce human factor to the impact with hot equipment, make the coordination of coal supply amount and institute's calorific requirement reach optimum efficiency.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (6)
1. energy-saving and emission-reduction pulverized coalapparatus, comprise coal pulverizer, defeated coal flexible pipe, pressure fan, combustion furnace and electric-control system, be provided with the fine coal carrier pipe between described pressure fan and the combustion furnace, it is characterized in that: be provided with the fine coal conveyor screw at described fine coal carrier pipe, described fine coal conveyor screw is connected with coal pulverizer by defeated coal flexible pipe.
2. energy-saving and emission-reduction pulverized coalapparatus according to claim 1, it is characterized in that: described combustion furnace comprises smoke exhaust pipe, described smoke exhaust pipe is connected with the water bath dust-removing chamber.
3. energy-saving and emission-reduction pulverized coalapparatus according to claim 1, it is characterized in that: the bottom of described coal dust conveyor screw is provided with trumpet-shaped opening.
4. energy-saving and emission-reduction pulverized coalapparatus according to claim 1, it is characterized in that: the front end of described fine coal carrier pipe is connected with fine coal and sprays into mouth.
5. energy-saving and emission-reduction pulverized coalapparatus according to claim 4 is characterized in that: described fine coal sprays into the axis that mouth and the inlet seal of combustion furnace are connected and favour entrance.
6. energy-saving and emission-reduction pulverized coalapparatus according to claim 1, it is characterized in that: described electric-control system comprises frequency-variable controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220288798 CN202733929U (en) | 2012-06-19 | 2012-06-19 | Energy-saving emission-reduction pulverized coal combustion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220288798 CN202733929U (en) | 2012-06-19 | 2012-06-19 | Energy-saving emission-reduction pulverized coal combustion device |
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| Publication Number | Publication Date |
|---|---|
| CN202733929U true CN202733929U (en) | 2013-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220288798 Expired - Fee Related CN202733929U (en) | 2012-06-19 | 2012-06-19 | Energy-saving emission-reduction pulverized coal combustion device |
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| CN (1) | CN202733929U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116202081A (en) * | 2023-03-13 | 2023-06-02 | 华能巢湖发电有限责任公司 | Burner operation state identification and control system |
-
2012
- 2012-06-19 CN CN 201220288798 patent/CN202733929U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116202081A (en) * | 2023-03-13 | 2023-06-02 | 华能巢湖发电有限责任公司 | Burner operation state identification and control system |
| CN116202081B (en) * | 2023-03-13 | 2024-01-26 | 华能巢湖发电有限责任公司 | Burner operation state identification and control system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20130619 |