CN207527623U - The outer fire coal of stove mixes match system and coal generating system - Google Patents

Abstract

This application involves thermal power generating technology fields, are related to a kind of outer fire coal of stove and mix match system and coal generating system.The outer fire coal of stove, which mixes match system, can realize that coal-fired accurate mix matches and be sent to the fire coal of specific coal quality the different location of burner and burn, and greatly improve coal-fired utilization, reduce pollutant emission.It can be realized using the coal generating system for mixing match system coal-fired outside the stove and coal-fired accurate mix from different mining areas is matched, ensure that coal quality is uniform, it is ensured that safe operation of the boiler.

Description

The outer fire coal of stove mixes match system and coal generating system

Technical field

The utility model is related to thermal power generating technology field, in particular to fire coal outside a kind of stove mix match system and Coal generating system.

Background technology

Since current each power plant's coal source is complex, coal is changeable, lacks effective Coal Analysis and management means, coal-fired , underaction single fuzzy with means is mixed, thus to coal characteristic and intends mixing the adaptability understanding for burning coal and boiler plant not Foot causes the boiler when larger change occurs for coal as received matter to be likely to occur boiler extinguishment detonation, pulverized coal preparation system in the process of running The problems such as explosion, the abrasion of heating surface heavy corrosion and pollutant discharge beyond standards, the safety and economic operation of boiler is seriously affected.

Utility model content

In the utility model in a first aspect, providing fire coal outside a kind of stove mixes match system, can realize coal-fired from entering Factory accurately mixes to the fire coal between burning matches, it is ensured that the coal-fired parameter of different coals quality accurately controls before combustion, it is ensured that boiler Safe operation.

In the second aspect of the utility model, a kind of coal generating system is provided, can be improved to coal-fired coal property Accurate control, improve the coal-fired thermal efficiency and reduce pollutant emission.

The utility model is realized in this way：

A kind of outer fire coal of stove mixes match system, including：Run coal bin, conveying device, control system and at least two are used to deposit Put the coal-fired coal bunker of different coals quality, it is defeated to the conveying device that the control system is used to controlling each coal bunker to export Output, the conveying device are delivered to described for fire coal of the mixing from least two coal bunker and by mixed fire coal Run coal bin.

Preferably, the control system includes controller, the feeder being electrically connected with the controller and for measuring The metering device of the Coal-fired capacity of the feeder output, the feeder are installed on the outlet of the coal bunker and for fire coal to be passed through The metering device is delivered to the conveying device.

Preferably, the controller is provided with control module, and the control module is each according to default coal-fired state modulator The coal bunker is exported to the output quantity ratio of the conveying device.

Preferably, the default coal-fired parameter burns parameter and default coking parameter including presetting fire parameters, presetting.

Preferably, sampling apparatus is further included, the sampling apparatus is used to obtain the coal-fired parameter of mixed fire coal.

Preferably, it is provided with iron remover in the conveying device.

Preferably, the iron remover is belt iron remover.Or or the other forms such as disc type iron remover remove iron Equipment.

Preferably, the metering device is electronic belt scale.Belted electronic balance is used for coal-fired to conveying in feeder output During band, coal-fired weight is measured, and be compared with preset coal-fired proportioning, achieve the purpose that accurately to control coal proportion.

Preferably, the feeder is vibration activation feeder.

A kind of coal generating system mixes match system including fire coal outside burner and above-mentioned stove, the burner by with It is set to and receives the fire coal from the run coal bin and for combustion power generation.

The advantageous effect of said program：The outer fire coal of stove provided by the utility model mixes match system, by obtaining into factory's fire coal Coal property parameter, stored according to scheduled region, before stove burning is entered, different coal-fired parameters controlled by control system Coal-fired mixture proportion, reach coal-fired accurate control before combustion, it is ensured that it is uniform to enter stove fire coal coal quality, unit safety operation And pollutant discharge in compliance with the standard.

Description of the drawings

It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also To obtain other relevant attached drawings according to these attached drawings.

Fig. 1 is the structure chart of coal generating system that the utility model embodiment provides.

Icon：The first coal bunkers of 101-；The second coal bunkers of 102-；103- feeders；104- belted electronic balances；105- iron removers； 106- conveyer belts；107- roller pickers；108- ring-type coal crackers；109- sampling apparatuses.

Specific embodiment

Purpose, technical scheme and advantage to make the utility model embodiment are clearer, new below in conjunction with this practicality Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched The embodiment stated is the utility model part of the embodiment, instead of all the embodiments.Usually here described in attached drawing and The component of the utility model embodiment shown can be configured to arrange and design with a variety of different.Therefore, below to attached The detailed description of the embodiment of the utility model provided in figure is not intended to limit claimed the scope of the utility model, But it is merely representative of the selected embodiment of the utility model.Based on the embodiment in the utility model, ordinary skill people Member's all other embodiments obtained without creative efforts belong to the model of the utility model protection It encloses.

It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi It is defined in a attached drawing, does not then need to that it is further defined and explained in subsequent attached drawing.

In the description of the present invention, it should be noted that term " " center ", " on ", " under ", it is "left", "right", " perpendicular Directly ", the orientation of the instructions such as " level ", " interior ", " outer " or position relationship be based on orientation shown in the drawings or position relationship or The utility model product using when the orientation usually put or position relationship, be for only for ease of description the utility model and letter Change description rather than instruction or imply signified device or element must have specific orientation, with specific azimuth configuration and Operation, therefore it is not intended that limitation to the utility model.In addition, term " first ", " second ", " third " etc. are only used for area Divide description, and it is not intended that instruction or hint relative importance.

In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set Put ", " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, Or it is integrally connected；Can be mechanical connection or electrical connection；It can be directly connected, intermediary can also be passed through It is indirectly connected, can be the connection inside two elements.For the ordinary skill in the art, it can be managed with concrete condition Solve concrete meaning of the above-mentioned term in the utility model.

In the utility model unless specifically defined or limited otherwise, fisrt feature second feature it " on " or it " under " can be in direct contact including the first and second features, it is not to be in direct contact but lead to that can also include the first and second features Cross the other characterisation contact between them.Moreover, fisrt feature second feature " on ", " top " and " above " including One feature is right over second feature and oblique upper or is merely representative of fisrt feature level height higher than second feature.First is special Sign second feature " under ", " lower section " and " below " including fisrt feature immediately below second feature and obliquely downward or only Represent that fisrt feature level height is less than second feature.

In the utility model in the case of not contradiction or conflict, all embodiments, embodiment of the utility model And feature can be combined with each other.In the utility model, conventional unit, component etc. both can be commercially available, can also It is made by oneself according to the utility model disclosure.It is normal to some in order to protrude the emphasis of the utility model in the utility model The omission or be only briefly described that the operation of rule and unit, component carry out.

Refering to Fig. 1, a kind of coal generating system is present embodiments provided, mixes disposition including fire coal outside burner and stove System, burner are divided into top layer burner, middle level burner and bottom burner.Wherein burner for receive come spontaneous combustion coal mix Match system mixes the fire coal after matching, and top layer burner, middle level burner and bottom burner can be by controlling burning not Same coal.Top layer burner, middle level burner and bottom burner are the different parts of burner.

The outer fire coal of stove is mixed match system and is included：At least one run coal bin, conveying device, control system and at least two are used for The coal-fired coal bunker of different coals quality is stored, wherein coal bunker is for being stored into the raw coal after factory, since raw coal comes from different producing area, In each component content it is variant, therefore preferably embodiment is, enters plant area from channels such as harbour, railways in raw coal Afterwards, enter to distinguish according to coal-fired ingredient.Steam power plant employee after coal to factory, according to come coal mine point, to factory's date, coal, Coal quality subregion is stored, and manual entry digital coal yard management system is matched with accurate mix for facilitating next step.Passable embodiment party Formula is based on technology of Internet of things, after coal to factory, according to carrying out coal mine point, stored to factory's date, coal, coal quality subregion, is passed through The real-time disk coal instrument of number or bucket wheel machine positioning device, range unit, belted electronic balance, laser, unmanned plane disk on coal yard belt Point etc. intuitively shows coal yard data after information collections comprehensively by 3-D graphic mode, coal-fired letter in each coal yard of Dynamic Announce Breath, it is automatic to record including carrying out become more meticulous storage and inquiry into constraintss such as field time, fire behaviour, calorific value and environmental protection indexs Enter digital coal yard management system, matched with accurate mix for facilitating next step.Such as：Subregion is carried out to automobile coal receiving bunker, according to next The fugitive constituent height coal in future of coal is divided into the classifications such as jet coal and meager lean coal, and in coal receiving bunker just mix.By the original after just mixing Coal merging coal bunker is kept in for use.

Control system is for controlling each coal bunker to export to the output quantity of conveying device, in the present embodiment, control system packet The feeder for include controller, being electrically connected with the controller and the metering device for measuring the Coal-fired capacity of feeder output, to coal Machine is installed on the outlet of coal bunker and for fire coal to be delivered to conveying device through metering device.Wherein, conveying device is for example, defeated Send band.Feeder is, for example, to vibrate activation feeder, and the unit interval can be controlled to be output to the combustion of conveying device from coal bunker Coal amount.

Refering to Fig. 1, in the present embodiment, coal bunker is two, respectively the first coal bunker 101 and the second coal bunker 102, the first coal bunker 101 and second coal bunker 102 can be used for storing the fire coals of different coals quality.Such as first coal bunker 101 store the good combustion of burnout performance Coal, the slightly worse fire coal of the second coal bunker 102 storage burnout performance.Wherein the first coal bunker 101 and the second coal bunker 102 are both provided with to coal Machine 103, and pass through feeder 103 and the fire coal in first coal bunker 101 and the second coal bunker 102 is delivered to conveyer belt 106.Control system The coal-supplying amount of the corresponding feeder 103 with the feeder 103 of the first coal bunker 101 and corresponding to the second coal bunker 102 of system control, in this way The fire coal and the burnout performance from the second coal bunker 102 that the burnout performance in the first coal bunker 101 is good can be controlled respectively Slightly worse coal-fired ratio, achievees the effect that mix and match.

Specifically, in the present embodiment, control system has control module, and control module is every according to default coal-fired state modulator A coal bunker is exported to the output quantity ratio of conveying device.

Default coal-fired parameter therein burns parameter and default coking parameter including presetting fire parameters, presetting.Control Module synthesis the first coal bunker 101, raw coal in the second coal bunker 102 fire parameters, to burn parameter and coking parameter etc. comprehensive The first coal bunker 101 and the second coal bunker 102 is controlled to mix the ratio matched.

Specifically, the first coal bunker 101 and the second coal bunker 102 are tower silo, 103 equal variable ratio frequency changer of feeder is adjusted, and then Realize control output quantity.

In the present embodiment, 103 lower section of feeder is provided with belted electronic balance 104, and belted electronic balance 104 is filled as metering It puts, the Coal-fired capacity that metering feeder 103 is exported from the first coal bunker 101 or the second coal bunker 102.Preferably, metering device is set On conveyer belt 106.

Specific mixture proportion, those skilled in the art can be regulated and controled according to practical use.Such as：Thermoelectricity Factory employee stores data according to coal yard daily, considers and mixes the fire behaviour with coal, hum-out characteristics, coking property and environmental protection Index accumulates with reference to load and putting equipment in service situation and constantly cured mix and empirically determined is most preferably mixed with burning with scheme, and section Learn establishment《Coal-fired PM10 guidance card》So that practical coal blending is instructed to work.

Mixed fire coal for fire coal of the mixing from least two coal bunkers and is delivered to one of them by conveying device Run coal bin, wherein, the parameters such as coal-fired hum-out characteristics, coal quality of each run coal bin memory storage can be the same or different.

Iron remover 105 can be set as the preferred embodiment of the utility model, in conveying device to remove in fire coal The metal impurities such as iron that may be present, iron remover 105 can select belt iron remover 105, disc type iron remover 105 or others Iron remover 105 etc..

Meanwhile before run coal bin is entered, conveying device sieves fire coal by roller picker 107 successively, ring-type coal cracker 108 crush, and are sampled after crushing by sampling apparatus 109, and obtain the coal-fired parameter collection before coal stove.Accurately to control Into the coal-fired parameter of coal-fired items of burner, the fire coal after crushing can enter run coal bin and store.

The coal after mixing and matching of run coal bin storage can be routed directly to burn in burner, for different run coal bins, The coal-fired coal quality of middle storage can be the same or different, and when specifically burning to the fire coal in run coal bin, can incite somebody to action Fire coal is divided according to the height for burning temperature, and first threshold and second threshold to burn temperature is set separately, wherein, the One threshold value is less than second threshold.

For bottom burner for receiving the fire coal for burning temperature and being less than second threshold, middle level burner burns temperature for receiving Degree is more than or equal to the fire coal of second threshold, and top layer burner is for receiving the fire coal for burning temperature and being less than first threshold, in this way Collocation mode fire coal can be made to be fully burned, reduce pollutant emission and improve coal-fired utilization rate simultaneously.

The specific setting of first threshold and second threshold is placed in, those skilled in the art can be according to practical coal-fired parameter It is configured and controls.

Coal generating system provided in this embodiment has the following advantages：

1st, by obtaining the coal property parameter into factory's fire coal, according to the good coal-fired parameter of predetermined design, it is by controlling The coal-fired mixture proportion of the different coal-fired parameters of system control, reaches coal-fired accurate control before combustion, while the top of burner Layer, middle level and bottom burn the fire coals of different hum-out characteristics as needed, it is ensured that unit safety operation and pollutant are up to standard Discharge.

2nd, by during the entire process of entering stove burning, controlling the coal-fired parameter of coal-fired items in real time from fire coal into factory, adopting With digital coal yard technology, such as：According to the number on coal yard belt or bucket wheel machine positioning device, range unit, electronic belt The real-time disk coal instrument of scale, laser, unmanned plane are made an inventory etc. and intuitively to show coal yard number comprehensively by 3-D graphic mode after information collections According to, coal-fired information in each coal yard of Dynamic Announce, including into constraintss such as field time, fire behaviour, calorific value and environmental protection indexs Carry out become more meticulous storage and inquiry.In system dump area floor different colours show dump volatile matter situation, sulphur content situation, , it is specified that sulphur content is extremely red, low heat value is extremely blue for low heat value situation and total moisture situation, and volatile matter is extremely green, Total moisture is extremely brown, is normally black, these colors can according to circumstances be reset in the present system.When point at this When hitting right mouse button, shortcut menu will be popped up, coal seam position shown above, the coal piling time, coal load quantity, ore deposit name, inspector, Sulphur content, low heat value, volatile matter, total moisture, with reference to situations such as coal price.In the system also certain area's floor dump is represented with different colours Temperature conditions, so as to carry out turning in time burn management.

By to fuel into, consume, deposit, measure, the dynamic realtime management of matter, greatly facilitate the inquiry of coal yard information with It transfers.Such as：Vehicle identification is identified using RFID card by unattended truck scale of automobile system, is automatically performed secondary measurement.Pass through The real time monitoring to haulage vehicle position, route and speed is realized using GPS and China Mobile's 4G mobile networks Dual positioning, and Fence is established, ensure that coal-fired transport overall process real-time monitoring.Job instruction is realized by vehicle-mounted group calling system It is accurate to assign and all vehicle on-line schedulings.It is realized with harbour tally subsystem and global position system cooperation from sending vehicle To specified stack position, approach from empty wagons to loaded vehicle and enter the Whole Process Control of factory.

These measures help to reduce field and undermine to optimize coal quality structure, are greatly improved coal yard management efficiency.Simultaneously will Traditional coal yard management is transformed into digital form, revolutionizes the procurement method in the past using design coal as target, and current The minimum of fuel purchases and use cost is realized with the procurement method of the minimum target of cost.

3rd, by the application of lower water coal transfer Whole Course Management platform, lower water coal line closed loop management, whole number are realized It is not landed according to material so that short to have bad luck defeated safety and efficiency increases substantially.

4th, it is accurately mixed with the coal blending operation for changing previous extensive style by the fire coal of multimode, more means, Forward, which is mixed, matches Critical point is managed, using digital coal yard to rely on, coal market variation, factory's memory coal feelings are just combined since fire coal enters factory Condition, coal handling system status of equipment, host equipment state, load condition etc. are adjusted in due course.By to carrying out coal and mixing with history The analysis of record, and combine the multiple means such as simulated experiment, combustion experiment and explore fuel cost control and the inherence of coal mixing combustion Rule reaches as-fired coal or close to design coal index, improves unit operation safety, stability and economy.

The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

Claims (10)

1. a kind of outer fire coal of stove mixes match system, which is characterized in that including：Run coal bin, conveying device, control system and at least two A coal-fired coal bunker for being used to store different coals quality, the control system are used to that each coal bunker to be controlled to export to the conveying The output quantity of device, the conveying device is for mixing the fire coal from least two coal bunker and mixed fire coal is defeated It send to the run coal bin.

2. the outer fire coal of stove according to claim 1 mixes match system, which is characterized in that the control system include controller, The feeder being electrically connected with the controller and the metering device for measuring the Coal-fired capacity of the feeder output, it is described to give Coal machine is installed on the outlet of the coal bunker and for fire coal to be delivered to the conveying device through the metering device.

3. the outer fire coal of stove according to claim 2 mixes match system, which is characterized in that the controller is provided with control mould Block, according to default coal-fired state modulator, each the coal bunker is exported to the output quantity ratio of the conveying device control module Example.

4. the outer fire coal of stove according to claim 3 mixes match system, which is characterized in that the default coal-fired parameter includes default Fire parameters default burn parameter and default coking parameter.

5. the outer fire coal of stove according to claim 1 mixes match system, which is characterized in that further includes sampling apparatus, the sampling Device is used to obtain the coal-fired parameter of mixed fire coal.

6. the outer fire coal of stove according to claim 1 mixes match system, which is characterized in that is provided in the conveying device except iron Device.

7. the outer fire coal of stove according to claim 6 mixes match system, which is characterized in that the iron remover is belt iron remover.

8. match system is mixed according to fire coal outside claim 2-4 any one of them stoves, which is characterized in that the metering device is electricity Sub- belt claims.

9. match system is mixed according to fire coal outside claim 2-4 any one of them stoves, which is characterized in that the feeder is vibration Activate feeder.

10. a kind of coal generating system, which is characterized in that outside including burner and claim 1-9 any one of them stoves Coal-fired PM10 system, the burner are configured to receive the fire coal from the run coal bin and for combustion power generation.