CN110127224A - A kind of ash library gasification system and its control method - Google Patents
A kind of ash library gasification system and its control method Download PDFInfo
- Publication number
- CN110127224A CN110127224A CN201910260306.3A CN201910260306A CN110127224A CN 110127224 A CN110127224 A CN 110127224A CN 201910260306 A CN201910260306 A CN 201910260306A CN 110127224 A CN110127224 A CN 110127224A
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- ash
- deduster
- library
- equipment
- gas
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- 238000002309 gasification Methods 0.000 title claims abstract description 109
- 238000003860 storage Methods 0.000 claims abstract description 123
- 239000000428 dust Substances 0.000 claims abstract description 61
- 238000007599 discharging Methods 0.000 claims abstract description 13
- 238000005273 aeration Methods 0.000 claims description 14
- 238000007906 compression Methods 0.000 claims description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- 239000002956 ash Substances 0.000 description 109
- 230000032258 transport Effects 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000000875 corresponding Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000010881 fly ash Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 101700066261 ash-2 Proteins 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 206010069794 Device issue Diseases 0.000 description 1
- 206010020852 Hypertonia Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000003078 antioxidant Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 235000006708 antioxidants Nutrition 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001502 supplementation Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000004642 transportation engineering Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/54—Large containers characterised by means facilitating filling or emptying
- B65D88/64—Large containers characterised by means facilitating filling or emptying preventing bridge formation
- B65D88/70—Large containers characterised by means facilitating filling or emptying preventing bridge formation using fluid jets
- B65D88/703—Air blowing devices, i.e. devices for the sudden introduction of compressed air into the container
Abstract
The present invention provides a kind of grey library gasification system and its control methods, it includes deduster, grey library, first gas storage equipment, heater, storage apparatus for ash for providing the air feed equipment of compressed air and for receiving flying dust, the air feed equipment, the storage apparatus for ash is successively sequentially connected with the deduster, the ash discharging hole of the deduster is connected with the grey library, the exhaust outlet of the deduster, the air feed equipment is connected with the air inlet of first gas storage equipment respectively, with to being passed through compressed air inside first gas storage equipment, the heater is provided at the gas outlet of first gas storage equipment, and the heater is connected by first pipe with the grey library.The ash library gasification system can recycle the lack of gas of pressure, and utilize to it, avoid directly by energy waste caused by lack of gas direct emission, effective simplied system structure, and reduce cost of investment.
Description
Technical field
The present invention relates to technical field of electrical equipment more particularly to a kind of grey library gasification system and its control methods.
Background technique
Coal-fired thermal power generation is China's most important forms of electricity generation at present, and thermal power plant is by coal-fired chemical energy in boiler
In be converted to thermal energy and absorbed by water and steam, steam does work to be converted to mechanical energy in steam turbine, and steam turbine drives hair
Rotor rotation converts mechanical energy into electrical energy transportation to huge numbers of families.Pneumatic ash transmitting system is applied in thermal power plant,
The system collects the flyash (flying dust) in boiler economizer, the first ash bucket of electric precipitator, makes flyash in the pump of storehouse
Fluidization and even into ash handing pipeline.The stream ash stateization of flyash and to deposit gas preferable, is in integrated gray column during defeated ash
Form, the storage of grey library is delivered to by way of positive pressure pneumatic ash handling.Grey library is in thermal power plant for storing flying dust
Building, pneumatic ash transmitting system by the flying dust of each economizer of entire power plant, electric precipitator etc. be uniformly transported in grey library into
Row storage transports the ash in grey library the ground such as to cement plant, grey field eventually by automobile etc..
Flying dust has the characteristic of water suction, if deposited in grey library, it is easy to and agglomeration, hardened etc. occur for water suction, because
This general thermal power plant is equipped with grey library gasification system, and gasification system is used to provide gasification wind to grey library, make in grey library
Flying dust is always maintained at the slow flow regime of similar " suspensions ", thus will not settle down generation agglomeration with it is hardened, needing
Ash discharge library can be smoothly unloaded when unloading ash.Existing pneumatic ash transmitting system belongs to open type air-transport system, it utilizes gas
High-pressure compressed air (general 0.8MPa or so) caused by source (equipment such as air compressor machine) conveys flying dust, but compressed air is being
It is only discharged using primary in system, the air that this part is finally discharged is known as lack of gas.Lack of gas are that have pressure (generally not small
In 0.1MPa), and this is partially compressed air and has already been through a series of processing such as oil removing dedusting dehumidifying, and lack of gas are exhausted in vain
Cause the waste of the energy.
Summary of the invention
Based on above-mentioned the deficiencies in the prior art, the purpose of the present invention is to provide a kind of grey library gasification system and its controlling parties
Method can recycle the lack of gas of pressure, and utilize to it, avoid the wave of the energy caused by lack of gas direct emission directly
Take, effective simplied system structure, and reduces cost of investment.
Based on this, the technical solution of the present invention is as follows: a kind of ash library gasification system comprising deduster, Hui Ku, the first gas storage
Equipment, heater, the air feed equipment for providing compressed air and the storage apparatus for ash for receiving flying dust；
The air feed equipment, the storage apparatus for ash are successively sequentially connected with the deduster；
The ash discharging hole of the deduster is connected with the grey library；
The exhaust outlet of the deduster, the air feed equipment are connected with the air inlet of first gas storage equipment respectively,
With to being passed through compressed air inside first gas storage equipment；
Be provided with the heater at the gas outlet of first gas storage equipment, and the heater by first pipe with
The ash library is connected.
Optionally, the second gas storage equipment, second gas storage are provided between the air feed equipment and the storage apparatus for ash
The air inlet of equipment is connected with the air feed equipment, and the gas outlet of second gas storage equipment is connected with the storage apparatus for ash
It is logical.
Optionally, the air feed equipment includes an at least air compressor and at least one and each air compressor
The processing equipment being connected is corresponded, each processing equipment is connected with the air inlet of second gas storage equipment respectively,
And each processing equipment passes through second pipe and is connected with the air inlet of first gas storage equipment.
Optionally, the storage apparatus for ash includes at least one first ash bucket and at least one is connected with each first ash bucket
Logical storehouse pump；
Each first ash bucket, each storehouse pump are connected with the gas outlet of second gas storage equipment respectively；
The ash discharging hole of each storehouse pump is connected by removing ash pipeline with the air inlet of the deduster.
Optionally, the deduster includes dirt pocket and the second ash bucket for being connected to the dirt pocket lower part；
Multiple filter bags being arranged parallel are equipped in the dirt pocket；
The air inlet of the deduster is set to the bottom of the dirt pocket, and the exhaust outlet of the deduster is located at described remove
The top of dirt room；
Air lock and ash-valve, and the air lock and the ash discharge are respectively arranged on second ash bucket from top to bottom
Valve will be divided into first chamber, second chamber and third chamber inside second ash bucket.
Optionally, the bottom of the inside in the grey library is provided with two pieces of gasification boards being arranged opposite to each other, two blocks of gas
Change and forms grey library gasification slot between plate；
The bottom of the ash library gasification slot is connected with the cinder-discharging port in the grey library；
The heater is connected at the gasification board by the first pipe.
Optionally, the grey library gasification system further includes filter device, and the filter device is installed on the top in the grey library
Portion, and the bottom of the filter device is connected with the grey library, the top of the filter device is for being connected to atmosphere.
Optionally, it is equipped at the position of the deduster and in first gas storage equipment on the removing ash pipeline
Pressure sensor.
Optionally, the grey library gasification system further includes controller, and the exhaust ports of the deduster are provided with exhaust valve,
Aeration valve is provided on the second pipe；
It is the deduster, each air compressor, each processing equipment, each storehouse pump, the heater, described
Air lock, the ash-valve, the pressure sensor, the exhaust valve, the aeration valve are electrically connected with the controller respectively.
Further, the present invention also provides a kind of control methods based on above-mentioned grey library gasification system comprising such as
Lower step:
Obtain the high pressure preset value and low-pressure preset value of first gas storage equipment；
Start the air feed equipment, the deduster and the storage apparatus for ash, so that the flying dust inside the storage apparatus for ash
Under the action of compressed air, into the deduster；
The deduster separates the flying dust entered in it and compressed air, so that flying dust falls into the grey library, pressure
Contracting air is output to again in first gas storage equipment；
According to the pressure value situation at the air inlet of pressure value situation and the deduster in first gas storage equipment,
Control is set to the work shape of the aeration valve in the exhaust valve of the exhaust ports of the deduster and the exit of the air feed equipment
State.
The implementation of the embodiments of the present invention has the following beneficial effects:
Grey library gasification system of the invention provides compressed air using air feed equipment as gas source, for whole system, stores up ash dress
Flying dust in setting is passed into deduster under the action of compressed air by pipeline, will be entered by deduster with pressure in it
Flying dust is efficiently separated, so that flying dust drops into grey library, and the lack of gas that compressed air is formed then are passed into the again
Be recycled in one gas storage equipment, its internal compressed air is passed through by the first gas storage equipment heated in heater after
It is passed through in grey library, is gasified with the flying dust for the deduster discharge being collected into grey library again, heater can be improved gasification wind
Temperature, and guarantee that flying dust is at vaporized state, it will not occur hardened.Entire ash library gasification system can be avoided deduster institute
The valuable compressed air by a series of oil removing dehumidifying processing of dedusting of discharge carries out the compressed air by direct emission
It is reasonable to be recycled, thus energy saving；And the first gas storage equipment can be by obtaining the row from air feed equipment and deduster
The lack of gas discharged at port are collected, and to supply as gasification wind direction ash library, are provided without being individually for grey library configuration again
The blower of gasification wind greatly saves the cost of entire grey library gasification system.In addition, the deduster of the ash library gasification system is arranged
Between storage apparatus for ash and grey library, there are pressure gas streams inside storage apparatus for ash, and are then passive states inside grey library, deduster
Ash discharge work can pass through inside the body of deduster of pressure and in the grey library without pressure, neither will cause letting out for deduster
Pressure, enables deduster continuous operation with pressure, and lack of gas with pressure can be passed directly to conduct in the first gas storage equipment
The wind that gasifies is spare, guarantees the pressure of gasification wind, improves gasification result, avoids vapor pressure is low from causing the flying dust in grey library hardened,
And lack of gas, by effective processing, the problem that can reliably avoid gasification wind aqueous reduces the work load of heater.The ash
Library gasification system can combine air feed equipment, the first gas storage equipment, storage apparatus for ash, deduster and Hui Ku, uniform operational,
The effective continuous operation for guaranteeing grey library gasification system, guarantees the reliability of grey library gasification result.
Detailed description of the invention
Fig. 1 is the overall structure diagram of grey library gasification system described in the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the deduster of grey library gasification system described in the embodiment of the present invention；
Fig. 3 is the flow chart of the control method of grey library gasification system described in the embodiment of the present invention.
Description of symbols:
1, deduster, 11, dirt pocket, 111, the air inlet of deduster, 112, the exhaust outlet of deduster, 113, deduster
Ash discharging hole, the 12, second ash bucket, 121, first chamber, 122, second chamber, 123, third chamber, 13, filter bag, 2, Hui Ku, 3,
One gas storage equipment, 4, heater, 5, air feed equipment, 51, air compressor, 52, processing equipment, 6, storage apparatus for ash, the 61, first ash
Bucket, 62, storehouse pump, 7, first pipe, the 8, second gas storage equipment, 9, removing ash pipeline, 10, air lock, 20, ash-valve, 30, gasification
Plate, 40, grey library gasification slot, 50, filter device, 60, pressure sensor, 70, exhaust valve, 80, aeration valve, 90, valve, 100, material
Position meter, 110, second pipe.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, the orientation or position of the instructions such as term " on ", "lower", "left", "right"
Setting relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, rather than
The device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot
It is interpreted as limitation of the present invention.
Referring to Fig. 1 to Fig. 3, grey 2 gasification system of library described in this preferred embodiment includes deduster 1, the grey storage of library 2, first
Gas equipment 3, heater 4, the air feed equipment 5 for providing compressed air and the storage apparatus for ash 6 for receiving flying dust, the confession
Gas equipment 5, the storage apparatus for ash 6 are successively sequentially connected with the deduster 1, the ash discharging hole 113 of the deduster with it is described
Grey library 2 is connected, the exhaust outlet 112 of the deduster, the air inlet with first gas storage equipment 3 respectively of the air feed equipment 5
Mouthful it is connected, set at the gas outlet of first gas storage equipment 3 to compressed air is passed through inside first gas storage equipment 3
It is equipped with the heater 4, and the heater 4 is connected by first pipe 7 with the grey library 2.
Based on the above structure, 2 gasification system of ash library is during carrying out real work, by air feed equipment 5 as whole
The gas source of a system provides compressed air for whole system, and the compressed air in air feed equipment 5 is transferred to by corresponding pipeline
Apparatus for ash 6 and the first gas storage equipment 3 are stored up, is flown in storage apparatus for ash 6 for collecting in the multiple equipments such as electric precipitator 1, economizer
Ash, and the flying dust stored up in apparatus for ash 6 can be entered by corresponding pipeline and be removed under the action of being passed through compressed air therein
In dirt device 1.It is flying dust with pressure into the flying dust in deduster 1, deduster 1 can then carry out flying dust and compressed air effective
Separation, and compressed air (i.e. lack of gas) is discharged from the exhaust outlet 112 of deduster, and is passed into the first gas storage equipment 3, and
Flying dust then drops into grey library 2 from the ash discharging hole of deduster 113, and the first gas storage equipment 3 can receive the lack of gas for having pressure
Collect and be passed through in grey library 2 as gasification wind, avoids the valuable lack of gas after relevant treatment and be directly passed into atmosphere
In, it is effective energy saving.The gas source that first gas storage equipment 3 gasifies as grey library 2, to provide gasification wind without the grey library 2 of pressure, the gas
Changing wind can directly obtain from deduster 1 and air feed equipment 5, no longer need to that the wind for generating gasification wind is separately configured in whole system
Machine is effectively reduced investment outlay, and the structure for simplifying 2 gasification system of entire grey library designs and can reduce noise, is realized good
Gasification result；Compressed air in first gas storage equipment 3 is passed into grey library 2 by heater 4, and heater 4 can be to pressure
Contracting air is heated, and the compressed air of high temperature is passed into grey library 2, so that the flying dust in grey library 2 gasifies, centainly
The gasification wind of pressure can also ensure that the vaporized state of flying dust in grey library 2, avoid flying dust from occurring in grey library 2 hardened.Entire ash
The structure design of 2 gasification system of library is very simple, and working principle is reliable, and by Pneumatic ash conveying, the gasification of grey library 2 and air feed equipment 5
It is combined with each other, unified to consider, the effective continuous operation for guaranteeing 2 gasification system of entire grey library.
Wherein, the second gas storage equipment 8, the air inlet of the second gas storage equipment 8 are provided between air feed equipment 5 and storage apparatus for ash 6
Mouth is connected with air feed equipment 5, and the gas outlet of the second gas storage equipment 8 is connected with storage apparatus for ash 6, and the second gas storage equipment 8 can
The compressed air provided air feed equipment 5 is collected, and as the buffer structure between air feed equipment 5 and storage apparatus for ash 6, right
A large amount of compressed air is effectively buffered, and guarantees that stablizing for compressed air is transmitted in whole system.Air feed equipment 5 includes extremely
A few air compressor 51 and at least one processing equipment 52 being connected with each air compressor 51 one-to-one correspondence, in this reality
It applies in example, the quantity of air compressor 51 and processing equipment 52 is for two, and each 51 parallel with one another groups of two air compressors
At air supply system, compressed air is provided for whole system, each processing equipment 52 is connected with the air inlet of the second gas storage equipment 8 respectively
Logical, compressed air provided by two air compressors 51 by respective processing equipment 52, is dusted respectively, oil removing and removes
Wet work, obtains clean compressed air, then the compressed air of cleaning is led to after the second gas storage equipment 8 buffered, biography
It is handed in storage apparatus for ash 6 and takes away flying dust.And each processing equipment 52 passes through the air inlet of second pipe 110 and the first gas storage equipment 3
Mouth is connected, and a part of clean compressed air can also be passed through in the first gas storage equipment 3 by second pipe 110, is first
Gas storage equipment 3 provides gasification wind, for supplementing when the gasification wind in the first gas storage equipment 3 is insufficient or hypotony into it
Compressed air, to guarantee the work well of whole system.
In addition, storage apparatus for ash 6 includes at least one first ash bucket 61 and at least one is connected with each first ash bucket 61
Storehouse pump 62, in the present embodiment, the quantity of the first ash bucket 61 and storehouse pump 62 is six, and six storehouse pumps 62 are parallel with one another, are
Entire ash 2 gasification system of library provides flying dust source, each first ash bucket 61, each storehouse pump 62 gas outlet with the second gas storage equipment 8 respectively
It is connected, the compressed air in the second gas storage equipment 8 is respectively delivered in the first ash bucket 61 and storehouse pump 62 by corresponding pipeline,
Under the action of compressed air, the flying dust in the first ash bucket 61 can be gradually input to downwards in storehouse pump 62, the row of each storehouse pump 62
Grey mouth is connected by removing ash pipeline 9 with the air inlet 111 of deduster, can be in compressed air into the flying dust in storehouse pump 62
It under effect, is passed through in deduster 1, is completed in deduster 1 and flying dust is compiled.Deduster 1 includes dirt pocket 11 and connects
It is connected to the second ash bucket 12 of 11 lower part of dirt pocket, multiple filter bags 13 being arranged parallel are equipped in dirt pocket 11, it is each to filter
Bag 13 is arranged in a vertical direction, and the air inlet 111 of deduster is set to the bottom of dirt pocket 11, the exhaust outlet of deduster 112
In the top of dirt pocket 11, there is pressure flying dust to be passed through from the air inlet 111 of deduster by what is come from storehouse pump 62, removed by being located at
Each filter bag 13 in dirt room 11 has the flying dust in pressure flying dust that can be filtered by filter bag 13, enables clean air-flow from removing
The exhaust outlet 112 of dirt device flows out deduster 1, and is then fallen under gravity by the flying dust that filter bag 13 filters to dirt pocket 11
In second ash bucket 12 of lower section, and it is gradually accumulated.There is pressure gas stream that can be passed directly to from 112 pass-out of exhaust outlet of deduster
It is spare as gasification wind in first gas storage equipment 3.It is respectively arranged with air lock 10 and ash-valve from top to bottom on second ash bucket 12
20, and air lock 10 and ash-valve 20 will be divided into first chamber 121, second chamber 122 and third chamber inside second ash bucket 12
Room 123 enters in first chamber 121 from the flying dust fallen in dirt pocket 11 and is accumulated, and dirt pocket 11 is internally provided with material
Position meter 100, can detect the dust accumulated in dirt pocket 11, when level-sensing device 100 detects the dust in dirt pocket 11
When reaching certain material position, the ash-valve 20 on the second ash bucket 12 is closed, and air lock 10 is opened, so that flying dust drops downward into
In second chamber 122, it is further continued for closing air lock 10 later, ash-valve 20 is opened, so that the flying dust in second chamber 122 is final
It drops into third chamber 123, then is passed into grey library 2 from third chamber 123.The deduster 1 setting is having pressure gas stream and nothing
Between 2 inside of grey library of pressure, it can effectively realize that the ash discharge of deduster 1 passes through the dirt pocket 11 of pressure and without pressure
While in grey library 2, the pressure release of deduster 1 is not caused, enables the continuous operation with pressure of deduster 1, guarantees whole system
The reliability of work.It should be noted that in the present embodiment, deduster 1 is using bag filter 1, the first storage
What gas equipment 3 and the second gas storage equipment 8 were all made of is air accumulator, but in other embodiments, deduster 1, the first gas storage equipment 3
It is not limited by the present embodiment with the type of the second gas storage equipment 8, when can suitably be selected according to actual needs, only
Guarantee to realize said effect.
Further, the bottom of the inside in grey library 2 is provided with two pieces of gasification boards being arranged opposite to each other 30, two pieces of gasification boards
It forms grey library between 30 to gasify slot 40, the bottom of grey library gasification slot 40 is connected with the cinder-discharging port in grey library 2, and heater 4 passes through the
One pipeline 7 is connected at gasification board 30, and the gasification wind heated by heater 4 can be delivered to gasification board 30 by first pipe 7
Position at, the gasification wind of heating can guarantee that flying dust is in vaporized state, increase the mobile performance of flying dust, so that grey library 2
It is more smooth to unload ash, gasification board 30 has good gas permeability and wear-resisting property, and grey library gasification slot 40 is anti-oxidant and is not easy to get rusty,
Flying dust in grey library 2 is fallen, and is discharged by the cinder-discharging port of grey library gasification 40 bottom of slot.Grey 2 gasification system of library further includes filtering dress
50 are set, filter device 50 is installed on the top in grey library 2, and the bottom of filter device 50 is connected with grey library 2, filter device 50
Top is for being connected to atmosphere, so that being able to maintain identical always with atmospheric pressure inside grey library 2, while can also filter out grey library
2 are up discharged into the gas of atmosphere, guarantee that flying dust will not enter in atmosphere with the various exhaust bodies in grey library 2, avoid to atmosphere
It pollutes.
In the present embodiment, pressure is equipped at the position of deduster 1 and in the first gas storage equipment 3 on removing ash pipeline 9
Force snesor 60, pressure sensor 60 can the pressure in the end and the first gas storage equipment 3 to removing ash pipeline 9 carry out it is real-time
Monitoring, guarantees going on smoothly for system, and when monitoring the pressure value at two and occurring abnormal, adjusts grey library 2 in time and gasify
The workflow of system guarantees that grey 2 gasification system of library can be operated normally.2 gasification system of ash library further includes control
Device is provided with exhaust valve 70 at the exhaust outlet 112 of deduster, aeration valve 80, deduster 1, each sky is provided on second pipe 110
Air compressor 51, each processing equipment 52, each storehouse pump 62, heater 4, air lock 10, ash-valve 20, pressure sensor 60, exhaust
Valve 70, aeration valve 80 are electrically connected with the controller respectively, the feedback signal of pressure sensor 60 are received by controller, and according to control
Preset program inside device processed carries out intelligentized control method to grey 2 gasification system of library, simplifies the practical operation that ash library 2 is gasified,
Improve working efficiency.
The present invention also provides a kind of grey 2 gasification system methods of library of control comprising following steps:
S1, the high pressure preset value H and low-pressure preset value L for obtaining first gas storage equipment 3；
S2, the starting air feed equipment 5, the deduster 1 and the storage apparatus for ash 6, so that inside the storage apparatus for ash 6
Flying dust under the action of compressed air, into the deduster 1；
S3, the deduster 1 separate the flying dust entered in it and compressed air, so that flying dust falls into the grey library
2, compressed air is output to again in first gas storage equipment 3；
S4, according to the pressure at the air inlet 111 of pressure value situation and the deduster in first gas storage equipment 3
It is worth situation, control is set to the benefit in the exit of exhaust valve 70 and the air feed equipment 5 at the exhaust outlet 112 of the deduster
The working condition of air valve 80.
Based on above step, which makes grey 2 gasification system of library mainly include startup stage, operate normally rank
Section, misoperation stage and stoppage in transit stage, the specific control method in each stage are as follows:
In startup stage, controller controls deduster 1 and starts to work, and each air compressor 51 and processing equipment 52 start
It works, there is pressure air to be passed through storage apparatus for ash 6 after oil removing dehumidifies dedusting by processing equipment 52 in air compressor 51, store up
Apparatus for ash 6 starts to start Pneumatic ash conveying work, the pressure sensor 60 in the first gas storage equipment 3 to the 1 defeated ash in inside of deduster
When measured pressure reaches high pressure preset value H, controller opens heater 4 after controlling timing 5s, so that heater 4 is to the
Gasification wind in one gas storage equipment 3 is heated, and starts to provide gasification wind to the inside of grey library 2, at this point, 2 gasification system of grey library
Formal starting.
In normal operating phase, each storehouse pump 62 keeps the continual pneumatic conveying that flying dust is carried out into deduster 1,
There is pressure flying dust to carry out gas ash content in deduster 1 from and flying dust being collected into inside grey library 2 under gravity, by grey library 2
Discharging arrangement is carried out, during grey 2 gasification system of library operates normally, the pressure sensor 60 in the first gas storage equipment 3 is to it
In pressure be measured in real time, when the pressure value in the first gas storage equipment 3 reaches low-pressure preset value L, controller control
Aeration valve 80 is opened, from deduster 1 lack of gas and air compressor 51 jointly into the first gas storage equipment 3 it is empty by compression
Gas；When the pressure value in the first gas storage equipment 3 reaches high pressure predetermined value H, aeration valve is closed after controller control timing 5s
80。
At the misoperation stage, in actual motion, from storehouse pump 62 to the ash discharge in the pneumatic ash transmitting system of deduster 1
Pipeline 9 is possible to the situation that plugging, broken pipe etc. cause terminal pressure too low occur, at this point, the lack of gas pressure that deduster 1 is discharged is very
Low, the gasification wind for being insufficient as grey library 2 is carried out using and also must assure that lack of gas can arrange Xiang great Qi at this time, to maintain gas
The conveying pressure difference of power ash-transmission system.Control method of the controller to whole system are as follows: the pressure sensing of 9 end of removing ash pipeline setting
Device 60 is measured in real time pressure herein, and is fed back to controller, and controller receives the pressure of 9 end of removing ash pipeline
Force value is compared with the system low-voltage force value preset, when the pressure value of 9 end of removing ash pipeline detected reaches preset
When low pressure values, controller will call the police and control the opening of exhaust valve 70, and controller issues 9 low pressure alarming of removing ash pipeline, prompter
Work excludes plugging, fistulae failure, and the opening and closing for the aeration valve 80 being arranged on second pipe 110 is then according to the first gas storage equipment
3 low-pressure preset value L and high pressure preset value H is determined, so that grey 2 gasification system of library be kept to run.Grey pipe end pressure
After force snesor 60 detects that the pressure value of 9 end of removing ash pipeline restores normal, then controller launches low-pressure signal relief,
And staff is prompted to confirm whether failure excludes, after waiting manual confirmation failure to exclude, controller prompts staff
It is confirmed whether to close exhaust valve 70 again, to restore the normal operation of 2 gasification system of grey library, staff, which confirms, restores grey library
It controls exhaust valve 70 after the normal operation of 2 gasification systems, after delaying time of controller 5s to close, until system is restored to operate normally.
In addition, in actual operation, grey library gasification slot 40 is also possible to block, at this point, in the first gas storage equipment 3
Gasification wind cannot be introduced into grey library 2, can be blocked in the first gas storage equipment 3, causes the hypertonia in it high, leads to Pneumatic ash conveying
The back pressure of system increases, and can not carry out pneumatic conveying.In this case, should stop carrying out as early as possible to grey 2 pneumatic conveying of library as early as possible
Artificial maintenance, debugging, before pneumatic conveying stopping, should the row's of opening atmos-valve, keep the pressure difference of pneumatic conveying.Its controlling party
Method are as follows: the pressure sensor 60 in the first gas storage equipment 3 detects that the pressure value in the first gas storage equipment 3 reaches high high pressure
HH, by the pressure signal transmission to controller and after being continued above 10s, controller alarms and controls the opening of exhaust valve 70, control
Device issues the alarm of 3 jam signal of the first gas storage equipment, prompts staff's debugging, and close aeration valve 80, staff
Confirm troubleshooting after, then by controller prompt staff be confirmed whether close exhaust valve 70 restore grey 2 gasification system of library
It operates normally, exhaust valve 70 is closed after manual confirmation resumes operation, after delaying time of controller 5s, system is made to restore to operate normally.
At the system shutdown stage, when power plant's overhaul, can make entire power plant shut down, therefore pneumatic ash transmitting system is stopped transport, and
It may possibly still be present flying dust in grey library 2 at this time, it is necessary to assure grey 2 gasification system of library operation, until grey library 2 empties.Its controlling party
Method are as follows: after staff confirms that pneumatic ash transmitting system is stopped transport, controller controls all valves 90 in pneumatic ash transmitting system and closes,
Guarantee that pneumatic ash transmitting system is stopped transport, deduster 1 is closed, and air compressor 51 and processing equipment 52 continue to run, and is waited
The empty level signals in grey library 2 or manual signal, when controller receives the empty level signals in grey library 2 or manual signal, then controller
Can prompt whether whole system is shut down, after grey 2 gasification system of library of staff's confirmation dead halt, delaying time of controller
5s closes heater 4, controls air compressor 51 and processing equipment after guaranteeing the cooling completely of heater 4 in delay 5min
52 close, and simultaneously close off aeration valve 80, so that entire ash 2 gasification system of library is stopped transport.
2 gasification system of grey library of the invention provides compressed air, storage ash using air feed equipment 5 as gas source, for whole system
Flying dust in device 6 is passed into deduster 1 under the action of compressed air by pipeline, will be entered in it by deduster 1
Flying dust with pressure is efficiently separated, so that flying dust drops into grey library 2, and the lack of gas that compressed air is formed then are passed through again
Be recycled in the first gas storage equipment 3, the first gas storage equipment 3 by its internal compressed air be passed through in heater 4 into
It is passed through in grey library 2, is gasified with the flying dust that the deduster 1 being collected into grey library 2 is discharged, heater 4 can again after row heating
The temperature of gasification wind is improved, and guarantees that flying dust is at vaporized state, will not be occurred hardened.2 gasification system energy of entire ash library
Enough avoid the valuable compressed air by a series of oil removing dehumidifying processing of dedusting that deduster 1 is discharged by direct emission,
The compressed air is reasonably recycled, thus energy saving；And the first gas storage equipment 3 can be by obtaining from gas supply
The lack of gas discharged at the exhaust outlet 112 of equipment 5 and deduster are collected, to be supplied as gasification wind direction ash library 2, without
It is individually for the grey configuration of library 2 again, the blower of gasification wind is provided, greatly saves the cost of 2 gasification system of entire grey library.In addition, the ash
The deduster 1 of 2 gasification system of library is set between storage apparatus for ash 6 and grey library 2, is stored up inside apparatus for ash 6 there are pressure gas stream, and grey
It is then passive state inside library 2, the ash discharge work of deduster 1 can pass through 1 body interior of deduster of pressure and without pressure
Grey library 2 in, neither will cause the pressure release of deduster 1, enable the continuous operation with pressure of deduster 1, and can will be with pressure
Lack of gas are passed directly to be used as gasification wind spare in the first gas storage equipment 3, guarantee the pressure of gasification wind, improve gasification result, keep away
Exempt from that vapor pressure is low to cause the flying dust in grey library 2 hardened, and lack of gas can reliably avoid gasification wind from containing by effective processing
The problem of water, reduces the work load of heater 4.2 gasification system of ash library can by air feed equipment 5, the first gas storage equipment 3,
Storage apparatus for ash 6, deduster 1 and grey library 2 combine, uniform operational, the effective continuous operation for guaranteeing 2 gasification system of grey library,
Guarantee the reliability of 2 gasification result of grey library.
It should be understood that various information are described in the present invention using term " first ", " second " etc., but these information
It should not necessarily be limited by these terms, these terms are only used to for same type of information being distinguished from each other out.For example, not departing from the present invention
In the case where range, " first " information can also be referred to as " second " information, and similar, " second " information can also be referred to as
" first " information.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principle of the present invention, several improvement and deformations can also be made, these improvement and deformations are also considered as
Protection scope of the present invention.
Claims (10)
1. a kind of ash library gasification system, which is characterized in that including deduster, Hui Ku, the first gas storage equipment, heater, for mentioning
Air feed equipment for compressed air and the storage apparatus for ash for receiving flying dust；
The air feed equipment, the storage apparatus for ash are successively sequentially connected with the deduster；
The ash discharging hole of the deduster is connected with the grey library；
The exhaust outlet of the deduster, the air feed equipment are connected with the air inlet of first gas storage equipment respectively, with to
Compressed air is passed through inside first gas storage equipment；
Be provided with the heater at the gas outlet of first gas storage equipment, and the heater by first pipe with it is described
Grey library is connected.
2. ash library gasification system according to claim 1, which is characterized in that the air feed equipment and the storage apparatus for ash it
Between be provided with the second gas storage equipment, the air inlet of second gas storage equipment is connected with the air feed equipment, it is described second storage
The gas outlet of gas equipment is connected with the storage apparatus for ash.
3. ash library according to claim 2 gasification system, which is characterized in that the air feed equipment includes an at least air
Compressor and at least one processing equipment being connected with each air compressor one-to-one correspondence, each processing equipment difference
It is connected with the air inlet of second gas storage equipment, and each processing equipment passes through second pipe and first gas storage
The air inlet of equipment is connected.
4. ash library gasification system according to claim 3, which is characterized in that the storage apparatus for ash include at least one first
Ash bucket and at least one storehouse being connected with each first ash bucket pump；
Each first ash bucket, each storehouse pump are connected with the gas outlet of second gas storage equipment respectively；
The ash discharging hole of each storehouse pump is connected by removing ash pipeline with the air inlet of the deduster.
5. ash library according to claim 4 gasification system, which is characterized in that the deduster includes dirt pocket and is connected to
Second ash bucket of the dirt pocket lower part；
Multiple filter bags being arranged parallel are equipped in the dirt pocket；
The air inlet of the deduster is set to the bottom of the dirt pocket, and the exhaust outlet of the deduster is located at the dirt pocket
Top；
Air lock and ash-valve are respectively arranged on second ash bucket from top to bottom, and the air lock and the ash-valve will
First chamber, second chamber and third chamber are divided into inside second ash bucket.
6. ash library according to any one of claims 1 to 5 gasification system, which is characterized in that the bottom of the inside in the ash library
Portion is provided with two pieces of gasification boards being arranged opposite to each other, and grey library gasification slot is formed between two pieces of gasification boards；
The bottom of the ash library gasification slot is connected with the cinder-discharging port in the grey library；
The heater is connected at the gasification board by the first pipe.
7. ash library according to claim 6 gasification system, which is characterized in that it further include filter device, the filter device
It is installed on the top in the grey library, and the bottom of the filter device is connected with the grey library, the top of the filter device
For being connected to atmosphere.
8. ash library according to claim 4 gasification system, which is characterized in that close to the deduster on the removing ash pipeline
Position at and first gas storage equipment on be equipped with pressure sensor.
9. ash library according to claim 8 gasification system, which is characterized in that it further include controller, the row of the deduster
It is provided with exhaust valve at port, is provided with aeration valve on the second pipe；
The deduster, each air compressor, each processing equipment, each storehouse pump, the heater, the gas lock
Valve, the ash-valve, the pressure sensor, the exhaust valve, the aeration valve are electrically connected with the controller respectively.
10. a kind of control method based on the described in any item grey library gasification systems of claim 1 to 9, which is characterized in that including
Following steps:
Obtain the high pressure preset value and low-pressure preset value of first gas storage equipment；
Start the air feed equipment, the deduster and the storage apparatus for ash, so that the flying dust inside the storage apparatus for ash is being pressed
Under the action of contracting air, into the deduster；
The deduster separates the flying dust entered in it and compressed air, so that flying dust falls into the grey library, compression is empty
Gas is output to again in first gas storage equipment；
According to the pressure value situation at the air inlet of pressure value situation and the deduster in first gas storage equipment, control
It is set to the working condition of the aeration valve in the exhaust valve of the exhaust ports of the deduster and the exit of the air feed equipment.
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|---|---|---|---|
| CN201910260306.3A CN110127224B (en) | 2019-04-01 | 2019-04-01 | Ash silo gasification system and control method thereof |
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|---|---|---|---|
| CN201910260306.3A CN110127224B (en) | 2019-04-01 | 2019-04-01 | Ash silo gasification system and control method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110759097A (en) * | 2019-11-14 | 2020-02-07 | 上海电气集团股份有限公司 | Feeding system for fly ash washing |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206587519U (en) * | 2017-01-22 | 2017-10-27 | 天津天保热电有限公司 | A kind of high density bag-type dust collector |
| CN207035100U (en) * | 2017-08-09 | 2018-02-23 | 浙江蓝太能源工程有限公司 | The cooling of high temperature ash and induction system |
-
2019
- 2019-04-01 CN CN201910260306.3A patent/CN110127224B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206587519U (en) * | 2017-01-22 | 2017-10-27 | 天津天保热电有限公司 | A kind of high density bag-type dust collector |
| CN207035100U (en) * | 2017-08-09 | 2018-02-23 | 浙江蓝太能源工程有限公司 | The cooling of high temperature ash and induction system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110759097A (en) * | 2019-11-14 | 2020-02-07 | 上海电气集团股份有限公司 | Feeding system for fly ash washing |
| CN110759097B (en) * | 2019-11-14 | 2021-07-23 | 上海电气集团股份有限公司 | Feeding system for fly ash washing |
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| CN110127224B (en) | 2021-05-07 |
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