CN202660581U - Intelligent adding equipment of coal additive and additive supply device of intelligent adding equipment - Google Patents
Intelligent adding equipment of coal additive and additive supply device of intelligent adding equipment Download PDFInfo
- Publication number
- CN202660581U CN202660581U CN 201220195542 CN201220195542U CN202660581U CN 202660581 U CN202660581 U CN 202660581U CN 201220195542 CN201220195542 CN 201220195542 CN 201220195542 U CN201220195542 U CN 201220195542U CN 202660581 U CN202660581 U CN 202660581U
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- additive
- impeller
- coal
- electronic rotation
- speed
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Abstract
The utility model discloses intelligent adding equipment of a coal additive and an additive supply device of the intelligent adding equipment. The additive supply device mainly comprises a feed bin, an impeller bin and a neck-shaped part, wherein an electric rotary impeller is hinged in the impeller bin; and the neck-shaped part is communicated with an outlet of the feed bin and an inlet of the impeller bin. The intelligent adding equipment of the coal additive mainly comprises the additive supply device, a weighing sensor, a speed sensor and a controller, wherein the weighing sensor is used for detecting mass of coal; the speed sensor is used for detecting coal conveying speed; the controller is used for controlling the rotation speed of the electric rotary impeller according to a set additive adding proportion; the weighing sensor and the speed sensor are used for measuring a mass signal and a speed signal of the coal; and the mass signal and the speed signal are converted into a motor rotation speed signal through a series of conversion to control rotation speed of a motor according to a given adding proportion, so that the rotation speed of the electric rotary impeller is controlled, and the additive is added according to the given proportion. The intelligent adding equipment and the additive supply device have the characteristics of uniform mixing of the coal and the additive and simple additive supply device.
Description
Technical field
The utility model relates to a kind of additive for fire coal intelligence interpolation equipment and additive feedway thereof, belongs to the coal-burning boiler technical field.
Background technology
Along with the raising to environmental requirement, power plant takes the whole bag of tricks to reduce pollutant emission.To reduce pollutant emission be a kind of both economical method to reach wherein to add additive in the power plant soot.The exemplary device of at present, adding additive in the power plant soot is the lime stone handling system in the CFBB.The lime stone mode of movement mainly contains two kinds: a kind of is gravity feeding, and another kind is that strength is carried.Gravity feeding is that the lime stone after the fragmentation is sent into a lime stone bucket with the coal bunker sustained height, and lime stone and coal fall into belt coal-feeding machine simultaneously from bucket separately, enter coal spout from belt coal-feeding machine again and enter burner hearth.Its advantage is that system is simple, and operation and maintenance is convenient.But can't regulate the lime stone feeding coal according to the discharge value of sulfur dioxide SO2.Compare with gravity feeding, strength carries the discharge value that is free to according to sulfur dioxide SO2 to regulate the lime stone feeding coal, but system and comparison in equipment are complicated, and is uneconomical during for a small amount of additive of interpolation.
Generally speaking, the addition of additive is proportional with coal-supplying amount, and higher to the uniformity requirement of mixing, for environmental requirement more and more higher today, utilize simple, economic device to reach control additive and the proportional even interpolation of coal-supplying amount, become a kind of urgent demand to realize environmental protection production and the purpose that reduces production costs.
The utility model content
The purpose of this utility model provides a kind of additive feedway, feed speed that can the free adjustment additive and simple in structure.
Another purpose of the present utility model provides a kind of additive for fire coal intelligence interpolation equipment of using above-mentioned additive feedway, can regulate according to the variation of coal-supplying amount the addition of additive in the ratio of setting.
The purpose of this utility model is achieved through the following technical measures:
A kind of additive feedway comprises that inside is hinged with the impeller storehouse of electronic rotation impeller, and the neck shape section that is communicated with described bin outlet and the import of impeller storehouse for the feed bin that stores additive; The import in described impeller storehouse is the wheel blade institute shutoff of electronic rotation impeller, the outlet in described impeller storehouse is the discharging opening of additive feedway, additive in the described feed bin enters in the groove position between electronic rotation impeller wheel blade by neck shape clan, additive in the described groove position rotates with friction speed with the electronic rotation impeller, exports from discharging opening by the impeller storehouse with corresponding load.
As a kind of embodiment of utility model, described electronic rotation impeller is the rotary blade that includes the isometric wheel blade that eight uniform ring establish.
As a kind of embodiment of utility model, described additive feedway is at the oblique stock guide that is provided with for the buffer additive discharging speed of discharging opening.
As a kind of embodiment of utility model, in the impeller storehouse, described rotating shaft is connected with the electronic rotation impeller key described electronic rotation impeller by the rotating shaft that matches and bearing hinge connection, and described bearing is arranged on the bulkhead in impeller storehouse.
Another purpose of the present utility model is achieved through the following technical measures:
A kind of additive for fire coal intelligence interpolation equipment comprises the described additive feedway of above-mentioned arbitrary scheme, for detection of the LOAD CELLS of coal quantity, for detection of the velocity sensor of coal-fired transfer rate be used for by the controller of setting the additive adding proportion and control described electronic rotation wheel speed; The tach signal output of described LOAD CELLS, velocity sensor and electronic rotation impeller is electrically connected with the corresponding signal input part of controller respectively, the output of described controller is electrically connected with the rotating speed control end of electronic rotation impeller, described controller is based on the additive adding proportion of the coal quantity signal that receives, transfer rate signal and setting, control electronic rotation impeller rotates with corresponding speed, and described additive feedway is supplied with the additive of respective amount by the additive adding proportion of setting.
Compared with prior art, the utlity model has following beneficial effect:
Additive for fire coal intelligence of the present utility model adds the equipment utilization LOAD CELLS and velocity sensor is measured coal-fired quality signal and rate signal, according to given adding proportion, quality signal and rate signal convert motor speed signal controlling motor speed to through a series of conversions, thereby the rotating speed of control electronic rotation impeller makes additive add in given ratio; Additive feedway of the present utility model is simple in structure, cost is low, and can reach by the control system in the additive for fire coal intelligence interpolation equipment purpose that control additive and coal-supplying amount add in proportion, reduced the expense of equipment investment and operation, save the expense of operation and maintenance, greatly improved the economy of adding additive.
Description of drawings
The utility model is described in further detail below in conjunction with the drawings and specific embodiments:
Fig. 1 is the structural representation of the utility model additive feedway;
Fig. 2 is the A-A cross-sectional schematic among Fig. 1;
Fig. 3 is the signal processing flow figure of the utility model additive for fire coal intelligence interpolation equipment.
The specific embodiment
As depicted in figs. 1 and 2, additive feedway 1 of the present utility model comprises that inside is hinged with the impeller storehouse 103 of electronic rotation impeller 104 for the feed bin 101 that stores additive, and the neck shape section 102 that is communicated with feed bin 101 outlets and 103 imports of impeller storehouse; The import in impeller storehouse 103 is the wheel blade institute shutoff of electronic rotation impeller 104, the outlet in impeller storehouse 103 is the discharging opening of additive feedway 1, additive in the feed bin 101 falls into groove position between electronic rotation impeller 104 wheel blades by neck shape section 102, additive in the groove position rotates with friction speed with electronic rotation impeller 104, exports from discharging opening by impeller storehouse 103 with corresponding load.
Wherein, electronic rotation impeller 104 is the rotary blade of the isometric wheel blade that includes eight uniform ring and establish.
In order to prevent that additive from causing large impact to fire coal, additive feedway 1 is at the oblique stock guide 105 that is provided with for the buffer additive discharging speed of discharging opening.
Electronic rotation impeller 104 can be by the rotating shaft 106 that matches and bearing hinge connection in impeller storehouse 103, and rotating shaft 106 is connected with electronic rotation impeller 104 keys, and bearing is arranged on the bulkhead in impeller storehouse 103.
Additive for fire coal of the present utility model intelligence interpolation equipment comprise claim 1 to 4 each additive feedway 1, for detection of the LOAD CELLS 2 of coal quantity, for detection of the velocity sensor 3 of coal-fired transfer rate be used for by the controller of setting additive adding proportion control electronic rotation impeller 104 rotating speeds; The tach signal output of LOAD CELLS 2, velocity sensor 3 and electronic rotation impeller 104 is electrically connected with the corresponding signal input part of controller respectively, the output of controller is electrically connected with the rotating speed control end of electronic rotation impeller 104, controller is based on the additive adding proportion of the coal quantity signal that receives, transfer rate signal and setting, control electronic rotation impeller 104 is with corresponding speed rotation, and additive feedway 1 is supplied with the additive of respective amount by the additive adding proportion of setting.
The below is take the intelligent interpolation equipment of the additive for fire coal that is applied to belt coal-feeding machine as example explanation the utility model operation principle:
Belt coal-feeding machine comprises for storing coal-fired feeder coal bunker 4, feeder belt 5 and drive the cylinder 6 that feeder belt 5 rotates, and the fire coal in the feeder coal bunker 4 drops on the feeder belt 5 and by its transmission; On the feeder belt 5 that LOAD CELLS 2 in the utility model additive for fire coal intelligence interpolation equipment and velocity sensor 3 can be arranged on feeder, the discharging opening of additive feedway 1 is arranged on feeder belt 5 and is positioned at the top that LOAD CELLS 2 transmits rear belt section, and electronic rotation impeller 104 is driven by motor M mounted thereto.
As shown in Figure 3, controller in the utility model additive for fire coal intelligence interpolation equipment can adopt multiplier, function generator and PID controller to form, the output of LOAD CELLS 2 and velocity sensor 3 is successively by adopting multiplier and function generator to be connected to the port sp of PID controller, the tach signal output of electronic rotation impeller 104 is connected to the port pv of PID controller, and the output of PID controller is connected to the job control end of motor M.Fire coal in the feeder coal bunker 4 transmits with feeder belt 5, the LOAD CELLS 2 and the velocity sensor 3 that are installed on the feeder belt 5 are measured respectively quality signal (kg/m) and rate signal (m/s) coal-fired on the feeder belt 5, quality signal and rate signal convert coal-fired mass flow rate signal (kg/s) to through multiplier, according to given additive adding proportion, convert again the set-point of the tach signal of motor to through function generator, the deviation of set-point and motor M actual speed draws the rotating speed that motor M is controlled in the motor speed instruction after the computing of PID controller, the rotation of motor M driving electric rotary blade 104, additive is rotated with electronic rotation impeller 104 fall, the additive of falling additive feedway discharging opening mixes with fire coal slowly falling on the feeder belt 5 under the cushioning effect of stock guide 105.Thereby realize that additive adds in given ratio.
Embodiment of the present utility model is not limited to this, according to foregoing, ordinary skill knowledge and customary means according to this area, do not breaking away under the above-mentioned basic fundamental thought of the utility model prerequisite, equivalent modifications, replacement or change that the utility model can also be made other various ways all can realize the utility model purpose.
Claims (5)
1. additive feedway, it is characterized in that: described additive feedway (1) comprises for the feed bin (101) that stores additive, inside is hinged with the impeller storehouse (103) of electronic rotation impeller (104), and the neck shape section (102) that is communicated with described feed bin (101) outlet and impeller storehouse (103) import; The import in described impeller storehouse (103) is the wheel blade institute shutoff of electronic rotation impeller (104), the outlet in described impeller storehouse (103) is the discharging opening of additive feedway (1), additive in the described feed bin (101) falls into groove position between electronic rotation impeller (104) wheel blade by neck shape section (102), additive in the described groove position rotates with friction speed with electronic rotation impeller (104), exports from discharging opening by impeller storehouse (103) with corresponding load.
2. additive feedway according to claim 1 is characterized in that: described electronic rotation impeller (104) is the rotary blade of the isometric wheel blade that includes eight uniform ring and establish.
3. additive feedway according to claim 2, it is characterized in that: described additive feedway (1) is at the oblique stock guide (105) that is provided with for the buffer additive discharging speed of discharging opening.
4. according to claim 1 to 3 each described additive feedwaies, it is characterized in that: described electronic rotation impeller (104) by the rotating shaft (106) that matches and bearing hinge connection in impeller storehouse (103), described rotating shaft (106) is connected with electronic rotation impeller (104) key, and described bearing is arranged on the bulkhead of impeller storehouse (103).
5. additive for fire coal intelligence interpolation equipment is characterized in that: described additive for fire coal intelligence interpolation equipment comprises each described additive feedway (1) of claim 1 to 4, for detection of the LOAD CELLS (2) of coal quantity, for detection of the velocity sensor (3) of coal-fired transfer rate be used for by the controller of setting the additive adding proportion and control described electronic rotation impeller (104) rotating speed; Described LOAD CELLS (2), the tach signal output of velocity sensor (3) and electronic rotation impeller (104) is electrically connected with the corresponding signal input part of controller respectively, the output of described controller is electrically connected with the rotating speed control end of electronic rotation impeller (104), described controller is based on the coal quantity signal that receives, the additive adding proportion of transfer rate signal and setting, control electronic rotation impeller (104) rotates with corresponding speed, and described additive feedway (1) is supplied with the additive of respective amount by the additive adding proportion of setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220195542 CN202660581U (en) | 2012-05-03 | 2012-05-03 | Intelligent adding equipment of coal additive and additive supply device of intelligent adding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220195542 CN202660581U (en) | 2012-05-03 | 2012-05-03 | Intelligent adding equipment of coal additive and additive supply device of intelligent adding equipment |
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| Publication Number | Publication Date |
|---|---|
| CN202660581U true CN202660581U (en) | 2013-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220195542 Expired - Lifetime CN202660581U (en) | 2012-05-03 | 2012-05-03 | Intelligent adding equipment of coal additive and additive supply device of intelligent adding equipment |
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| CN (1) | CN202660581U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048299A (en) * | 2014-05-27 | 2014-09-17 | 广东电网公司电力科学研究院 | Sludge co-combustion system for coal-fired power plant and intelligent supply method thereof |
-
2012
- 2012-05-03 CN CN 201220195542 patent/CN202660581U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048299A (en) * | 2014-05-27 | 2014-09-17 | 广东电网公司电力科学研究院 | Sludge co-combustion system for coal-fired power plant and intelligent supply method thereof |
| CN104048299B (en) * | 2014-05-27 | 2016-06-22 | 广东电网公司电力科学研究院 | A kind of coal-burning power plant's mud co-combustion system and intelligence supply method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130109 |
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| CX01 | Expiry of patent term |