CN107902371A - A kind of automatic coal handling system of heat power factory boiler and its defeated coal method - Google Patents
A kind of automatic coal handling system of heat power factory boiler and its defeated coal method Download PDFInfo
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- CN107902371A CN107902371A CN201711130768.0A CN201711130768A CN107902371A CN 107902371 A CN107902371 A CN 107902371A CN 201711130768 A CN201711130768 A CN 201711130768A CN 107902371 A CN107902371 A CN 107902371A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/02—Devices for feeding articles or materials to conveyors
- B65G47/16—Devices for feeding articles or materials to conveyors for feeding materials in bulk
- B65G47/18—Arrangements or applications of hoppers or chutes
- B65G47/19—Arrangements or applications of hoppers or chutes having means for controlling material flow, e.g. to prevent overloading
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/02—Devices for feeding articles or materials to conveyors
- B65G47/16—Devices for feeding articles or materials to conveyors for feeding materials in bulk
- B65G47/18—Arrangements or applications of hoppers or chutes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/52—Devices for transferring articles or materials between conveyors i.e. discharging or feeding devices
- B65G47/72—Devices for transferring articles or materials between conveyors i.e. discharging or feeding devices transferring materials in bulk from one conveyor to several conveyors, or vice versa
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/04—Bulk
- B65G2201/045—Sand, soil and mineral ore
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
Automatic coal handling system and its defeated coal method the invention discloses a kind of heat power factory boiler, belong to technical field of boiler combustion.Including three upper coal belts, three respectively to coaling machine, a coal belt, the firing machine and central processing unit to boiler coal of coal on the upper coal belt；Three coaling machines are respectively arranged in the three Ge Mei areas for stacking different calorific value coals, the coaling machine includes into coal bunker and goes out coal bunker, it is described into coal bunker and to go out coal bunker be funnel-form, the left upper end for going out coal bunker described in into coal bunker, it is described into coal bunker upper end opening, it is described to be equipped with inclined guide channel into coal bunker lower end, it is described into coal bunker by the guide channel with it is described go out coal bunker on the left of connect；It is described go out coal bunker lower end be equipped with discharge port, the discharge outlet is equipped with electromagnetic valve.The goal of the invention of the present invention is to provide a kind of automatic coal handling system of heat power factory boiler and its defeated coal method, for solving the problems, such as that boiler combustion efficiency is not high instantly and combustion instability.
Description
Technical field
The invention belongs to technical field of boiler combustion, a kind of particularly automatic coal handling system of heat power factory boiler and its defeated
Coal method.
Background technology
As thermal electromotive force factory fuel source, coal-fired cost occupies full factory's cost 80% in combustion fortune workshop, in order to reduce cost,
Usually need to use several coals mixing be used as fuel, and upper coal, coal blending it is whether continuous, uniformly, stablize and directly affect boiler combustion
Efficiency.Among actual mechanical process, if as-fired coal Lower heat value is too high or too low, boiler coke, unstable combustion will be caused
Situations such as fixed, fire extinguishing, detonation, occurs.Usual defeated coal method is：Engineering machinery will enter after factory carrys out coal mixture, defeated using single belt
Coal.Easily there is each coal blending inequality, layering serious situation in such a defeated coal mode, causes as-fired coal hot-restriking die big, closes
Lattice rate is relatively low, boiler maintain substantially in, underrun, high load capacity stable operation can not be maintained for a long time.
The content of the invention
The goal of the invention of the present invention is to provide a kind of automatic coal handling system of heat power factory boiler and its defeated coal method, is used for
Solve the problems, such as that boiler combustion efficiency is not high instantly and combustion instability.
To reach above-mentioned purpose, the technical solution adopted in the present invention is：
A kind of automatic coal handling system of heat power factory boiler, including three upper coal belts, three respectively to the upper coal skin
Take the coaling machine, a coal belt, a firing machine and central processing unit to boiler coal of coal；
Three coaling machines are respectively arranged in the three Ge Mei areas for stacking different calorific value coals, and the coaling machine is included into coal
Storehouse and go out coal bunker, it is described into coal bunker and to go out coal bunker be funnel-form, it is described into coal bunker be arranged on it is described go out coal bunker left upper end, it is described
It is described to be equipped with inclined guide channel into coal bunker lower end into coal bunker upper end opening, it is described into coal bunker by the guide channel with
It is described go out coal bunker on the left of connection；It is described go out coal bunker lower end be equipped with discharge port, the discharge outlet is equipped with electromagnetic valve, the electromagnetism
Valve is connected with the central processing unit, and the central processing unit is used to control the solenoid valve break-make；It is described go out coal bunker in set
Have a vertical shaft, the shaft central axes with it is described go out coal bunker central axes overlap, the shaft upper end is equipped with motor, the electricity
Machine goes out coal bunker upper end described in being installed on, and the shaft upper end is connected and installed on the motor output shaft, and the shaft lower end is prolonged
The upper coal discharge port is extended, helical runner is installed with the shaft, the motor is connected with the central processing unit,
For controlling the motor to rotate or stopping；
A coal belt is equipped with below the discharge port of every coaling machine, the coal belt volume is located at master
On dynamic belt pulley and driven pulley, the drive pulley is equipped with driver motor, and drive pulley is installed on the master
On driving wheel motor output shaft, the driver motor is connected with the central processing unit, and the central processing unit is used to control institute
Driver motor is stated to rotate or stop；The first belted electronic balance, the belted electronic balance and institute are additionally provided with the coal belt
Central processing unit connection is stated, the belted electronic balance is used to measure coal amount and feed back weight information to central processing unit；
The right end of three upper coal skins is converged in the coal belt left end, and material is transported to the coal skin respectively
Take, the coal belt right end is equipped with firing machine, and the firing machine is arranged on below the coal belt, and the firing machine includes
Coal bunker, stirring motor, several agitator arms and agitating shaft are stirred, the shaft is horizontally placed in the stirring coal bunker, institute
State stirring motor to be installed on the outside of the stirring coal bunker, the agitating shaft is installed on the output shaft of the stirring motor, some
The agitator arm is fixedly installed on the agitating shaft, and the stir storehouse upper end is equipped with feed inlet, is equipped with the feed inlet
Photoelectric sensor, the photoelectric sensor are connected with the central processing unit, and the photoelectric sensor is used to detect material entrance
And send signal to the central processing unit, the stir storehouse lower end is equipped with out coal channel, it is described go out coal channel and the boiler
Connection.
Mode as a further improvement, the coal belt right end are equipped with the second belt conveyer scale, second belt conveyer scale with
The central processing unit connection, for measuring coal weight and feeding back weight signal to central processing unit.
Mode as a further improvement, three coal areas are respectively arranged with the shooting monitored to coal on the coaling machine
Head.
A kind of defeated coal method of the automatic coal handling system of heat power factory boiler, comprises the following steps：
(1) manually three kinds of coals of different calorific values point, three different coal areas are stacked；
(2) energy needed according to the load of boiler determines gross calorific value；
(3) gross calorific value is inputted to the central processing unit, passes through formula Q=(Q1*G1+Q2*G2+Q3*G3)/G calculates each
The ratio of the upper coal amount of coal, Q is gross calorific value；Q1、Q2、Q3The calorific value of respectively each coal, G1、G2、G3Respectively each coal
Coal amount in kind, G is upper coal total amount, Q1、Q2、Q3, Q substitutes into formula and calculates the ratio of coal amount in each coal respectively；
(4) upper coal total amount is inputted to the central processing unit, the central processing unit calculates upper according to the step (3)
The finally upper coal amount of three kinds of coals of ratio-dependent of coal amount, the solenoid valve of three coaling machines are opened on the upper coal belt
Coal, upper coal belt and coal the belt operation, the upper coal belt respectively send material to the coal belt, the electronics
Belt conveyer scale measures coal amount and feeds back weight information to central processing unit, when reaching finally upper coal amount, the centre respectively
Reason device controls the solenoid valve to close respectively；
(5) when material reaches the coal belt right end, during second belted electronic balance feeds back to weight information
Central processor, for monitoring coal amount in real time；
(6) material enters the coal machine inlet through the coal belt right end, and the photoelectric sensor is in described
Central processor sends signal, and the central processing unit controls the stirring motor operating, and three kinds of coals are by being stirred and passing through
The coal channel that goes out of the firing machine enters the boiler.
Mode as a further improvement, the coal that three different coal areas are stacked be respectively Baise lignite, Indonesia's lignite and
Bituminous coal.
Mode as a further improvement, in the step (1), each coal area sets up direction board, and on direction board
Be marked with coal title, calorific value, ash fusion point, producer, into factory's time, storage place.
Due to the adoption of the above technical scheme, the invention has the advantages that：
1. different calorific value coals are deposited in different coal areas by the present invention respectively, public by the setting in advance in central processing unit
Formula carries out automatic mixing calculating, calculates the upper coal amount of each coal, then goes up coal automatically by coaling machine, anti-by the first belted electronic balance
Weight information is presented, determines the upper coal amount of each coal, then coal is transported to coal belt respectively by three upper coal belts respectively, three
Kind coal is transported to firing machine through coal belt, enters boiler by being stirred.The present invention can make coal blending mode reasonable, make
Boiler can uniformly go up coal, enable production economy, carry out with security and stability.
2. coal belt right end is equipped with the second belt conveyer scale, pass through the real time monitoring to coal amount, the convenient ratio to each coal
Example is adjusted.
3. three Ge Mei areas is respectively arranged with the camera monitored to coal on the coaling machine, upper coal situation is carried out and is monitored,
Strengthen the disposal ability to emergent accident.
Brief description of the drawings
Fig. 1 is the flow chart of the automatic coal handling system of heat power factory of the present invention boiler；
Fig. 2 is the structure diagram of the automatic coal handling system coaling machine of heat power factory of the present invention boiler；
Fig. 3 is the structure diagram of the lower coal machine of the automatic coal handling system of heat power factory of the present invention boiler；
Fig. 4 is the electronic component connection figure of the automatic coal handling system of heat power factory of the present invention boiler；
Main element symbol description is as follows in figure：
In attached drawing, 1- goes out coal bunker, 4- helical runners, 5- shafts, 6- electromagnetic valves, 7- into coal bunker, 2- guide channels, 3- and goes out
The upper coal belt of material mouth, 8- drive pulleys, 9-, the first belted electronic balances of 10-, 11- driven pulleies, 12- coals belt, 13-
Second belted electronic balance, 14- feed inlets, 15- stirrings coal bunker, 16- agitator arms, 17- go out coal channel, 18- boilers.
Embodiment
The specific implementation of invention is further illustrated below in conjunction with attached drawing.
As shown in Figs 1-4, the automatic coal handling system of a kind of heat power factory boiler, including three upper coal belts 9, three are upwards
12, the coaling machine of coal, the coal belt firing machines and central processing unit to 18 coal of boiler on coal belt 9；
Three coaling machines are respectively arranged in the three Ge Mei areas for stacking different calorific value coals, and coaling machine includes into coal bunker 1 and goes out
Coal bunker 3, into coal bunker 1 and to go out coal bunker 3 be funnel-form, and the left upper end of coal bunker 3 is arranged on out into coal bunker 1, into 1 upper end opening of coal bunker,
Inclined guide channel 2 is equipped with into 1 lower end of coal bunker, is connected into coal bunker 1 by guide channel 2 with going out the left side of coal bunker 3；Go out coal bunker 3
Lower end is equipped with discharge port 7, and electromagnetic valve 6 is equipped with discharge port 7, and electromagnetic valve 6 is connected with central processing unit, and central processing unit is used
In control solenoid valve break-make；Go out in coal bunker 3 and be equipped with vertical shaft 5,5 central axes of shaft are overlapped with going out 3 central axes of coal bunker, shaft
5 upper ends are equipped with motor, and motor is installed on out 3 upper end of coal bunker, and 5 upper end of shaft is connected and installed on motor output shaft, 5 lower end of shaft
Coal discharge port 7 is extended to, helical runner 4 is installed with shaft 5, motor is connected with central processing unit, for controlling electricity
Machine is rotated or stopped.
The lower section of discharge port 7 of every coaling machine is equipped with a coal belt 12, and coal belt volume 12 is located at drive pulley
On wheel 8 and driven pulley 11, drive pulley 8 is equipped with driver motor, and it is defeated that drive pulley 8 is installed on driver motor
On shaft, driver motor is connected with central processing unit, and central processing unit is used to control driver motor to rotate or stop；Coal
The first belted electronic balance 10 is additionally provided with belt 12, belted electronic balance is connected with central processing unit, and belted electronic balance is used to measure
Upper coal amount simultaneously feeds back weight information to central processing unit.
The right end of three upper coal skins is converged in 12 left end of coal belt, and material is transported on coal belt 12 respectively, is added
12 right end of coal belt is equipped with firing machine, and firing machine is arranged on the lower section of coal belt 12, and firing machine includes stirring coal bunker 15, stirring electricity
Machine, several stir agitator arm 16 and agitating shaft, shaft 5 is horizontally placed in stirring coal bunker 15, and stirring motor is installed on stirring
The outside of coal bunker 15, agitating shaft are installed on the output shaft of stirring motor, and some agitator arms 16 that stir are fixedly installed on agitating shaft,
Stir storehouse upper end is equipped with feed inlet 14, is equipped with photoelectric sensor at feed inlet 14, photoelectric sensor is connected with central processing unit, light
Electric transducer sends signal for detecting material into and to central processing unit, and stir storehouse lower end is equipped with out coal channel 17, produces coal
Passage 17 is connected with boiler 18.
12 right end of coal belt is equipped with the second belt conveyer scale, and the second belt conveyer scale is connected with central processing unit, for measuring coal
Weight simultaneously feeds back weight signal to central processing unit.
Three Ge Mei areas are respectively arranged with the camera monitored to coal on coaling machine.
A kind of defeated coal method of the automatic coal handling system of heat power factory boiler, comprises the following steps：
(1) manually three kinds of coals of different calorific values point, three different coal areas are stacked, the coal that three different coal areas are stacked
Respectively Baise lignite, Indonesia's lignite and bituminous coal, each coal area sets up direction board, and mark has name on direction board
Title, calorific value, ash fusion point, producer, into factory's time, storage place.
(2) energy needed according to the load of boiler 18 determines gross calorific value；
(3) gross calorific value is inputted to central processing unit, each coal is calculated by formula Q=(Q1*G1+Q2*G2+Q3*G3)/G
The ratio of coal amount in kind, Q are gross calorific value；Q1, Q2, Q3 are respectively the calorific value of each coal, and G1, G2, G3 are respectively each coal
Upper coal amount, G are upper coal total amount, Q1, Q2, Q3, Q substitution formula are calculated respectively the ratio of coal amount in each coal；
Embodiment 1：
When load is 16.7MJ/kg, Baise lignite, Indonesia's lignite, calorific value Q1, Q2, Q3 of bituminous coal are respectively
9MJ/kg, 18MJ/kg, 22MJ/kg, substitute into formula it is final -7.7G1+1.3G2+5.3G3=0, Baise lignite, Indonesia's lignite,
The proportionality coefficient of upper coal amount G1, G2, G3 of bituminous coal are about 1：1：1.2, Baise lignite, Indonesia's lignite, the upper coal amount of bituminous coal and total
Upper coal amount G1, G2, G3, G are taken as 90kg, 180kg, 264kg, 534kg respectively.
Embodiment 2：
When load is 14.5MJ/kg, Baise lignite, Indonesia's lignite, calorific value Q1, Q2, Q3 of bituminous coal are respectively
9MJ/kg, 18MJ/kg, 22MJ/kg, substitute into formula it is final -5.5G1+3.5G2+7.5G3=0, Baise lignite, Indonesia's lignite,
The proportionality coefficient of upper coal amount G1, G2, G3 of bituminous coal are 2：1：1, Baise lignite, Indonesia's lignite, the upper coal amount of bituminous coal and total upper coal
Amount G1, G2, G3, G are taken as 200kg, 100kg, 100kg, 400kg respectively.
(4) upper coal total amount is inputted to central processing unit, central processing unit is according to coal in each coal calculated in step (3)
The finally upper coal amount of three kinds of coals of ratio-dependent of amount, the solenoid valve of three coaling machines open coal on upward coal belt 9, upper coal skin
Band 9 and coal belt 12 are run, and upper coal belt 9 respectively send material to coal belt 12, and belted electronic balance measures coal respectively
Measure and feed back weight information to central processing unit, when reaching finally upper coal amount, central processing unit controls solenoid valve to close respectively.
(5) when material reaches coal 12 right end of belt, weight information is fed back to centre by the second belted electronic balance 13
Device is managed, for monitoring coal amount in real time.
(6) material enters coal machine inlet 14 through 12 right end of coal belt, and photoelectric sensor is sent to central processing unit
Signal, central processing unit control stirring motor operating, three kinds of coals enter by being stirred and going out coal channel 17 by firing machine
Boiler 18.
After engineering machinery, which will enter factory, carrys out coal mixture, using coal on single belt, easily there is each coal blending inequality, layering
Serious situation, causes as-fired coal hot-restriking die big, low qualified, and annual qualification rate is only since going into operation according to statistics
69.25%, seriously constrain the safe, economic of boiler for producing and stablize.After scheme is implemented, as-fired coal matches qualification rate by original
69.25% bring up to 95%, cost efficiency clearly, effectively improves boiler thermal efficiency, reduces the coal consumption of steam mark and production
Cost, is that good precondition is created in the long-term high load capacity stable operation of boiler.The present invention stacks different calorific value coals respectively
In different coal area, automatic mixing calculating is carried out by the setting formula in advance in central processing unit, calculates the upper coal amount of each coal,
Coal is gone up by coaling machine automatically again, weight information is fed back by the first belted electronic balance 10, determines the upper coal amount of each coal, then divide
Coal coal belt 12 is not transported to respectively by three upper coal belts 9, three kinds of coals are transported to firing machine through coal belt 12, warp
Cross and be stirred into boiler 18.The present invention can make coal blending mode reasonable, enable the uniformly upper coal of boiler 18, enable production
Economy, carry out with security and stability.
Described above is the detailed description for the present invention preferably possible embodiments, but embodiment is not limited to this hair
Bright patent claim, equal change or the modification change completed under the technical spirit suggested by all present invention, should all belong to
Cover the scope of the claims in the present invention.
Claims (6)
1. the automatic coal handling system of a kind of heat power factory boiler, it is characterised in that including three upper coal belts, three respectively to institute
State the coaling machine of coal on coal belt, a coal belt, a firing machine and central processing unit to boiler coal；
Three coaling machines are respectively arranged in the three Ge Mei areas for stacking different calorific value coals, the coaling machine include into coal bunker and
Go out coal bunker, it is described into coal bunker and to go out coal bunker be funnel-form, it is described into coal bunker be arranged on it is described go out coal bunker left upper end, it is described into coal
Storehouse upper end opening, it is described to be equipped with inclined guide channel into coal bunker lower end, it is described into coal bunker by the guide channel with it is described
Go out connection on the left of coal bunker；It is described go out coal bunker lower end be equipped with discharge port, the discharge outlet is equipped with electromagnetic valve, the electromagnetic valve
It is connected with the central processing unit, the central processing unit is used to control the solenoid valve break-make；It is described go out coal bunker in be equipped with it is perpendicular
To shaft, the shaft central axes with it is described go out coal bunker central axes overlap, the shaft upper end is equipped with motor, the motor peace
Loaded on it is described go out coal bunker upper end, the shaft upper end is connected and installed on the motor output shaft, and the shaft lower end extends to
The upper coal discharge port, is installed with helical runner in the shaft, the motor is connected with the central processing unit, is used for
The motor is controlled to rotate or stop；
A coal belt is equipped with below the discharge port of every coaling machine, the coal belt volume is located at active skin
On belt wheel and driven pulley, the drive pulley is equipped with driver motor, and drive pulley is installed on the driving wheel
On motor output shaft, the driver motor is connected with the central processing unit, and the central processing unit is used to control the master
Driving wheel motor is rotated or stopped；Be additionally provided with the first belted electronic balance on the coal belt, the belted electronic balance with it is described in
Central processor connects, and the belted electronic balance is used to measure coal amount and feed back weight information to the central processing unit；
The right end of three upper coal skins is converged in the coal belt left end, and material is transported to the coal belt respectively
On, the coal belt right end is equipped with firing machine, and the firing machine is arranged on below the coal belt, and the firing machine includes stirring
Coal bunker, stirring motor, several agitator arms and agitating shaft are mixed, the shaft is horizontally placed in the stirring coal bunker, described
Stirring motor is installed on the outside of the stirring coal bunker, and the agitating shaft is installed on the output shaft of the stirring motor, Ruo Gansuo
State agitator arm to be fixedly installed on the agitating shaft, the stir storehouse upper end is equipped with feed inlet, and light is equipped with the feed inlet
Electric transducer, the photoelectric sensor are connected with the central processing unit, and the photoelectric sensor is used to detect material into simultaneously
Send signal to the central processing unit, the stir storehouse lower end is equipped with out coal channel, it is described go out coal channel connected with boiler.
A kind of 2. automatic coal handling system of heat power factory as claimed in claim 1 boiler, it is characterised in that the coal belt
Right end is equipped with the second belt conveyer scale, and second belt conveyer scale is connected with the central processing unit, for measuring coal weight and feeding back
Weight signal is to central processing unit.
A kind of 3. automatic coal handling system of heat power factory as claimed in claim 1 boiler, it is characterised in that three coal areas
It is respectively arranged with the camera monitored to coal on the coaling machine.
4. the defeated coal method of the automatic coal handling system of any one heat power factory boiler as described in claim 1-3, its feature
It is, comprises the following steps：
(1) manually three kinds of coals of different calorific values point, three different coal areas are stacked；
(2) energy needed according to the load of boiler determines gross calorific value；
(3) gross calorific value is inputted to the central processing unit, passes through formula Q=(Q1*G1+Q2*G2+Q3*G3)/G calculates each coal
The ratio of upper coal amount, Q are gross calorific value；Q1、Q2、Q3The calorific value of respectively each coal, G1、G2、G3Coal in respectively each coal
Amount, G is upper coal total amount, Q1、Q2、Q3, Q substitutes into formula and calculates the ratio of coal amount in each coal respectively；
(4) upper coal total amount, the upper coal amount that the central processing unit is calculated according to the step (3) are inputted to the central processing unit
Three kinds of coals of ratio-dependent finally upper coal amount, the solenoid valve of three coaling machines opened to coal on the upper coal belt,
Upper coal belt and coal the belt operation, the upper coal belt respectively send material to the coal belt, the electronics skin
Belt scale measures coal amount and feeds back weight information to central processing unit, when reaching finally upper coal amount, the central processing respectively
Device controls the solenoid valve to close respectively；
(5) when material reaches the coal belt right end, weight information is fed back to centre by second belted electronic balance
Device is managed, for monitoring coal amount in real time；
(6) material enters the coal machine inlet through the coal belt right end, and the photoelectric sensor is to the centre
Manage device and send signal, the central processing unit controls the stirring motor operating, and three kinds of coals are by being stirred and by described
The coal channel that goes out of firing machine enters the boiler.
5. the defeated coal method of the automatic coal handling system of a kind of heat power factory as claimed in claim 4 boiler, it is characterised in that three
The coal that a difference coal area is stacked is respectively Baise lignite, Indonesia's lignite and bituminous coal.
A kind of 6. defeated coal method of the automatic coal handling system of heat power factory as claimed in claim 4 boiler, it is characterised in that institute
State in step (1), each coal area sets up direction board, and on direction board mark have title, calorific value, ash fusion point, producer,
Into factory's time, storage place.
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Cited By (5)
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| CN109335595A (en) * | 2018-09-30 | 2019-02-15 | 四川德胜集团钒钛有限公司 | A kind of alloy raw material transport control system and control method |
| CN109382158A (en) * | 2018-12-17 | 2019-02-26 | 广西华银铝业有限公司 | A kind of novel gyratory crusher buffer unit |
| CN109869735A (en) * | 2019-02-01 | 2019-06-11 | 大唐东营发电有限公司 | A kind of novel defeated coal execution management method therefor |
| CN113189299A (en) * | 2021-06-07 | 2021-07-30 | 烟台瑞能创科能源科技有限责任公司 | Real-time online display analysis system for coal quality of coal bunker |
| CN114345532A (en) * | 2022-01-06 | 2022-04-15 | 宝武集团鄂城钢铁有限公司 | Coal preparation system and process |
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| CN113189299A (en) * | 2021-06-07 | 2021-07-30 | 烟台瑞能创科能源科技有限责任公司 | Real-time online display analysis system for coal quality of coal bunker |
| CN114345532A (en) * | 2022-01-06 | 2022-04-15 | 宝武集团鄂城钢铁有限公司 | Coal preparation system and process |
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