CN202709087U - Automatic pulverized coal combustion system - Google Patents
Automatic pulverized coal combustion system Download PDFInfo
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- CN202709087U CN202709087U CN 201220394833 CN201220394833U CN202709087U CN 202709087 U CN202709087 U CN 202709087U CN 201220394833 CN201220394833 CN 201220394833 CN 201220394833 U CN201220394833 U CN 201220394833U CN 202709087 U CN202709087 U CN 202709087U
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- coal
- coal combustion
- combustion system
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Abstract
The utility model relates to an automatic pulverized coal combustion system. An existing pulverized coal combustion system is not suitable for continuous production, and load regulation is inconvenient. To overcome the defects, the automatic pulverized coal combustion system comprises an automatic coal feeding device, a primary fan, a secondary fan, a coal grinder and a coal combustion device. A combustor is arranged in the coal combustion device, a coal outlet of the automatic coal feeding device is connected with a coal inlet of the coal grinder, an outlet of the primary fan is connected with an air inlet of the coal grinder, an outlet of the coal grinder is led to a primary air powder inlet of the combustor through a coal conveying pipeline, an outlet of the secondary fan is connected with a secondary air powder inlet of the combustor, and primary air powder and secondary air powder are mixed and burn at the outlet of the combustor. For optimization, the automatic pulverized coal combustion system further comprises a programmable logic controller (PLC), wherein a motor of the primary fan, a motor of the secondary fan, a motor of the coal grinder and a motor of the automatic coal feeding device are respectively connected with the output end of the PLC and controlled by the PLC. The automatic pulverized coal combustion system has the advantages of being simple in structure, convenient to control and suitable for being widely used in boilers, kilns and other coal combustion devices.
Description
Technical field
The utility model relates to a kind of automatic pulverized coal combustion system.
Background technology
China is coal resources big countries, also is coal consumption big country, and coal is brought into play significant role in the every field of national economy.A lot of boilers, stove all adopt coal dust to make fuel, and existing pulverized coal combustion system is not suitable for continuous production, and Load Regulation is inconvenient, and the mixing ratio of primary wind and powder and Secondary Air is wayward, and the primary wind and powder amount is excessive, and it is insufficient to burn easily; Secondary Air is excessive, and boiler, stove capacity are large, and thermal loss is large.
The utility model content
The technical problems to be solved in the utility model is the defects that how to overcome prior art, provides a kind of control convenience, sufficient combustion, the automatic pulverized coal combustion system that capacity is moderate.
For solving the problems of the technologies described above, this automatic pulverized coal combustion system comprises the device of automatically delivering coal, primary air fan, overfire air fan, coal pulverizer and coal combustion equipment, be provided with burner in the coal combustion equipment, automatically the coal outlet of device of delivering coal connects the coal entrance of coal pulverizer, the primary air fan outlet connects the wind entrance of coal pulverizer, the coal pulverizer outlet passes into the primary wind and powder entrance of burner by convey coal pipe, the outlet of overfire air fan connects the Secondary Air powder entrance of burner, and primary wind and powder and Secondary Air are in the mixed combustion of the exit of burner.So design is fit to produce continuously.
As optimization, it also comprises the PLC controller, the relevant position of described coal combustion equipment is provided with temperature sensor, the input of this temperature sensor and PLC controller joins, between described primary air fan and the coal pulverizer, between overfire air fan and the burner control valve is arranged all, the motor of the motor of above-mentioned control valve and primary air fan, overfire air fan motor, coal pulverizer, the device motor of delivering coal all joins with the output of PLC controller automatically, controlled by the PLC controller.
So design, when the PLC controller was sensed in the coal combustion equipment drop in temperature or do not reached predetermined temperature, scale up primary wind and powder and Secondary Air air inflow strengthened the amount of delivering coal of automatically sending burner simultaneously, satisfy the coal combustion equipment burden requirement; Otherwise the PLC controller reduces primary wind and powder and Secondary Air air inflow, reduces simultaneously the amount of delivering coal of automatically sending burner, and control is convenient.
As optimization, described coal pulverizer is provided with load sensor, and this load sensor is current transformer, and this current transformer is arranged on the motor of coal crusher power line, and joins with the PLC controller.So design can be adjusted the amount of delivering coal of the device of automatically delivering coal according to the coal pulverizer load variations, guarantees that coal pulverizer neither can be very few because of coal input quantity, and " going hungry " again can be not excessive because of coal input quantity, " bursting belly ".
As optimization, described coal pulverizer is provided with load sensor, and this load sensor is weight sensor, and this weight sensor is arranged between coal pulverizer main body and the pedestal, and joins with the PLC controller.So design is compared with current transformer, can more directly monitor the coal amount in the coal pulverizer.
As optimization, described coal combustion equipment is boiler or stove.
That the automatic pulverized coal combustion system of the utility model has is simple in structure, control easily advantage, is widely used on the coal combustion equipments such as boiler, stove.
Description of drawings
Below in conjunction with accompanying drawing this automatic pulverized coal combustion system is described further:
Fig. 1 is the wire frame intention of this automatic pulverized coal combustion system.
Among the figure: 1 for the device of automatically delivering coal, 2 for primary air fan, 3 for overfire air fan, 4 for coal pulverizer, 5 for coal combustion equipment, 6 for the PLC controller, 7 for burner, 8 for control valve.
The specific embodiment
Embodiment one: as shown in Figure 1, this automatic pulverized coal combustion system comprises the device 1 of automatically delivering coal, primary air fan 2, overfire air fan 3, coal pulverizer 4, coal combustion equipment 5 and PLC controller 6, be provided with burner 7 in the coal combustion equipment 5, automatically the coal outlet of device 1 of delivering coal connects the coal entrance of coal pulverizer 4, primary air fan 2 outlets connect the wind entrance of coal pulverizer 4, convey coal pipe is passed through in coal pulverizer 4 outlets, pass into the primary wind and powder entrance of burner 6, the outlet of overfire air fan 3 connects the Secondary Air powder entrance of burner 7, and primary wind and powder and Secondary Air are in the mixed combustion of the exit of burner 7.
The relevant position of described coal combustion equipment 5 is provided with temperature sensor, the input of this temperature sensor and PLC controller 6 joins, between described primary air fan 1 and the coal pulverizer 4, between overfire air fan 3 and the burner 7 control valve 8 is arranged all, the motor of the motor of above-mentioned control valve 8 and primary air fan 2, the motor of overfire air fan 3, coal pulverizer 4, the deliver coal motor of device 1 all joins with the output of PLC controller automatically, controlled by the PLC controller.
Described coal pulverizer 4 is provided with load sensor, and this load sensor is current transformer, and this current transformer is arranged on the motor power-supply wire of coal pulverizer 4, and joins with the PLC controller.Described coal combustion equipment 5 is boiler or stove.
Embodiment two: described coal pulverizer 4 is provided with load sensor, and this load sensor is weight sensor, and this weight sensor is arranged between coal pulverizer 4 main bodys and the pedestal, and joins with the PLC controller.All the other structures are shown in enforcement mode one, and figure slightly.
Claims (5)
1. automatic pulverized coal combustion system, it is characterized in that: comprise the device of automatically delivering coal, primary air fan, overfire air fan, coal pulverizer and coal combustion equipment, be provided with burner in the coal combustion equipment, automatically the coal outlet of device of delivering coal connects the coal entrance of coal pulverizer, the primary air fan outlet connects the wind entrance of coal pulverizer, coal pulverizer exports the primary wind and powder entrance that passes into burner by convey coal pipe, and the outlet of overfire air fan connects the Secondary Air powder entrance of burner, and primary wind and powder and Secondary Air are in the mixed combustion of the exit of burner.
2. automatic pulverized coal combustion system as claimed in claim 1, it is characterized in that: it also comprises the PLC controller, the relevant position of described coal combustion equipment is provided with temperature sensor, the input of this temperature sensor and PLC controller joins, between described primary air fan and the coal pulverizer, between overfire air fan and the burner control valve is arranged all, the motor of the motor of above-mentioned control valve and primary air fan, overfire air fan motor, coal pulverizer, the device motor of delivering coal all joins with the output of PLC controller automatically, controlled by the PLC controller.
3. automatic pulverized coal combustion system as claimed in claim 2, it is characterized in that: described coal pulverizer is provided with load sensor, and this load sensor is current transformer, and this current transformer is arranged on the motor of coal crusher power line, and joins with the PLC controller.
4. automatic pulverized coal combustion system as claimed in claim 2, it is characterized in that: described coal pulverizer is provided with load sensor, and this load sensor is weight sensor, and this weight sensor is arranged between coal pulverizer main body and the pedestal, and joins with the PLC controller.
5. such as the arbitrary described automatic pulverized coal combustion system of claim 1 to 4, it is characterized in that: described coal combustion equipment is boiler or stove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220394833 CN202709087U (en) | 2012-05-07 | 2012-08-09 | Automatic pulverized coal combustion system |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220200589 | 2012-05-07 | ||
| CN201220200589.6 | 2012-05-07 | ||
| CN 201220394833 CN202709087U (en) | 2012-05-07 | 2012-08-09 | Automatic pulverized coal combustion system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202709087U true CN202709087U (en) | 2013-01-30 |
Family
ID=47589384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220394833 Expired - Fee Related CN202709087U (en) | 2012-05-07 | 2012-08-09 | Automatic pulverized coal combustion system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202709087U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104749315A (en) * | 2015-02-13 | 2015-07-01 | 华中科技大学 | Carbon-containing solid fuel mixed combustion test device and method |
| CN105987394A (en) * | 2015-03-02 | 2016-10-05 | 上海谊快能源技术有限公司 | Direct blowing type industrial powder combustion system |
| CN109882883A (en) * | 2019-03-01 | 2019-06-14 | 北京慧辰资道资讯股份有限公司 | A kind of method and device based on artificial intelligence optimization's boiler fired coal efficiency |
-
2012
- 2012-08-09 CN CN 201220394833 patent/CN202709087U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104749315A (en) * | 2015-02-13 | 2015-07-01 | 华中科技大学 | Carbon-containing solid fuel mixed combustion test device and method |
| CN105987394A (en) * | 2015-03-02 | 2016-10-05 | 上海谊快能源技术有限公司 | Direct blowing type industrial powder combustion system |
| CN109882883A (en) * | 2019-03-01 | 2019-06-14 | 北京慧辰资道资讯股份有限公司 | A kind of method and device based on artificial intelligence optimization's boiler fired coal efficiency |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20140809 |
|
| EXPY | Termination of patent right or utility model |