CN208683586U - Coal bunker total management system - Google Patents

Abstract

The utility model discloses a kind of coal bunker total management systems, it is made of feeder, flexible coal spout, dilatation coal bunker, coal bin coal position, safety monitoring system, run coal bin, vibrator, automatic loosening apparatus, novel hydraulic material cut-off gate, coal stream detection switch, wherein automatic loosening apparatus is made of oil cylinder, pull rod, scraper plate, oil pipe, control device, petrol station.The problem of system is from chute blockage, canopy coal root is started with; thoroughly elimination coal bunker is stifled, coal security risk of breaking; the oil plant Meteorological as caused by coal bunker chute blockage, canopy coal can be greatly decreased; eliminate the security risks such as boiler extinguishment, non-programmed halt; and greatly reduce the workload of field maintenance person; it is horizontal to improve bunker management; reduce labor intensity and equipment loss; it can effectively monitor raw coal transport status and safe condition inside coal bunker; it is unimpeded to ensure that coal charge is given; the efficiency for improving equipment improves the working performance of unit, and it is horizontal to improve unit integrated management.

Description

Coal bunker total management system

Technical field

The utility model relates to prevent blocking of coal bunker, block clearing technical field belongs to more particularly to a kind of coal bunker total management system In defeated coal auxiliary products.

Background technique

Currently, in the feeding system of the industries such as electric power, coal, chemical industry, metallurgy, mine, especially coal in coal-fired power plant System, due to China's coal quality composition change greatly, the generally existing chute blockage of run coal bin, canopy coal, leakage eye, it is hardened the problems such as, Bu Nengbao Demonstrate,prove coal charge normal supply, coal pulverizer will idle running, generating set will be forced promptly reduce power output, it is more serious to make At major accidents hidden danger such as boiler extinguishment, unit unplanned outages；It needs simultaneously frequently, a large amount of oil of throwing are to guarantee boiler combustion Stablize, influences normal production efficiency and economic benefit.

Run coal bin blocking mainly has following three kinds of reasons:

1, coal bunker structure design it is unreasonable caused by block: run coal bin is mostly cement, steel, cement steel hybrid combination , planform is essentially identical, i.e., suitable for reading big, lower mouth is small, and coal bunker height fall is big, and when operation, coal charge is fallen by self weight, by Mouth sharply reduces under coal bunker, and coal flowing slowly, causes low pressure in coal bunker big, and coal charge is attached to coefficient of friction on coal bunker and increases Greatly, coal charge is cumulative, and the coal bunker volume the long-pending smaller to cause run coal bin chute blockage；What the material stop valve that mouth connects under coal bunker was connected to Coal spout is pyramidal structure, and coal dropping port is continued to zoom out, and without loose measure, at this after chute blockage, due to coal charge can not continue to Lower flowing, coal charge is cumulative, causes run coal bin chute blockage.

2, blocked caused by coal quality problem: coal quality particle is small, more grey matters, containing coal slime, can absorb moisture into grume, encounter Even more serious when rainy season or higher ambient humidity, hot wind and pressure influence are attached to coal dust largely on coal bunker, cause run coal bin Chute blockage.

3, run coal bin day-to-day operation and management it is not perfect caused by block: operations staff is difficult to carry out situation in coal bunker Comprehensively, effectively detection causes coal bunker frequently upper coal, and coal charge excessively leads under coal bunker that mouth pressure is excessive, causes run coal bin chute blockage.

The method of existing processing blocking, other than manually tapping dredging, well known preventing plug dredging equipment is divided into following several:

One is mode of vibration dredgings, and both vibrating motor was directly mounted on run coal bin shell, when discovery run coal bin is stifled When plug, start vibrating motor, since run coal bin is rigid structural, cause amplitude reduces, effect is poor, noise is big, particularly easily will be former Coal bunker basis shatters, by the more solid of the material vibration in storehouse, blocks more serious.

Another kind is loosening machine dredging mode, is exactly by a kind of hydraulic linear sports equipment in storehouse, when run coal bin is stifled When plug, loosening machine up and down motion dredge blockage is one of ideal block clearing equipment under certain environment at present.Coal quality it is good or It is good that effect is dredged when beans blocks, it is single thoroughly to be solved by loose when grey matter is big, humidity is big, particle is tiny Problem, final top also form a wide range of hardened.In the case where coal bunker unreasonable structure, loosening machine cannot be fully solved chute blockage Problem.

There are also a kind of rotary wall type anti-clogging material warehouse device, i.e. material bin device is made of three parts, and upper and lower part is divided into Static storehouse, middle section are revolution wall type material bin, built-in broken arch blockage-clearing device (scraper), in the motion process of anti-blocking system In, material can not form stable arch near inner barn wall between bulkhead, and the basis of blocking is disintegrated, and blocking also would not be again Occur, shortcoming is that structure is complicated, and cost is high, if rotation coal scuttle can not be solved chute blockage and be asked with external position chute blockage at all Topic, and rotation coal scuttle own wt is big, and torque is big in rotary course, links position with coal bunker and is easily deformed, and it is de- to increase coal scuttle The danger fallen.

The method of the above processing coal bunker blocking cannot thoroughly solve the chute blockage in coal bunker, canopy coal, leakage eye, hardened etc. and ask Topic.

Summary of the invention

To solve the above-mentioned problems, the utility model provides a kind of with anti-blocking, dredging and wear-resisting functions, can be thorough Solve a kind of coal bunker total management system of the blockage problem of run coal bin.

To achieve the above object, the utility model is achieved through the following technical solutions:

The utility model provides a kind of coal bunker total management system comprising: feeder (1), expands at flexible coal spout (2) Hold coal bunker (3), coal bin coal position, safety monitoring system (4), run coal bin (5), vibrator (6), automatic loosening apparatus (7), New Material cut-off gate (8), coal stream detection switch (9) are pressed, wherein automatic loosening apparatus (7) is by oil cylinder (7.1), pull rod (7.2), scraper plate (7.3), oil pipe (7.4), control device (7.5), petrol station (7.6) composition.

The feeder (1), is drum closure structure, belongs to coal furnace pulverized coal preparation system equipment.

The flexibility coal spout (2), is to change novel hydraulic material cut-off gate (8) to the coal breakage pipeline section between feeder (1) For the cone tube shape adapter tube made by flexible material, sealing is tight, will not generate powder leakage, and coal spout has elasticity, once it falls Coal pipeline section occur chute blockage when, simply beat can be completed it is loose；Flexible coal spout is volume expansion structure, convenient for the flowing of coal charge, Reduce the generation of chute blockage；Flexible coal spout personnel convenient to overhaul overhaul pipe valve and coal bunker, if it is desired, can be by flexible coal spout It opens, thus enters coal bunker and overhauled, or maintenance feeder.

The dilatation coal bunker (3) is to be transformed run coal bin (5), at about 3.5 meters height suitable for reading away from feeder (1) Truncation, increases by one section of dilatation coal bunker (3), and original taper storehouse is transform as to the form of two or three taper storehouses splicing, lower part storehouse The topside area of body is greater than the bottom area of top warehouse, and dilatation coal bunker (3) increases section suitable for reading with the top place of docking, makes raw coal Storehouse (5) secondary dilatation is loose, the pressure under coal bunker difference in height is reduced, to reduce frictional force and hardened situation.Make coal charge in coal Storehouse lower part carries out dilatation, reduces lower layer's bulkhead to the pressure of coal charge, optimizes the mobile performance of coal charge, reduce hardened phenomenon, The generation for reducing chute blockage phenomenon, using multilayer volume expansion structure coal bunker, coal charge is dredged in layering, is conducive to raising coal bunker loosening and is set Standby effect.

The coal bin coal position, safety monitoring system (4), by monitoring on the spot, illumination, on the spot light, electric conversion cabinet, communication on the spot Optical cable, central station of floating dock monitor 5 parts and constitute.Long-range observation control may be implemented in central station of floating dock monitoring, by mouse or remote controler, Any camera image signals in this system can be recalled on any video output terminals all the way, and the movement of video camera can be carried out Operation., can be in the range of any setting by programming, timing cycle display image signals.System uses high-resolution SONY All-in-one machine, 12 Zoom Lens, auto iris, configuration electric platform, encoder and camera lens dust-extraction unit can be monitored online Run coal bin (5) and the coal position height of dilatation coal bunker (3) inside, distribution and mobility status and safe condition of the raw coal in storehouse.It is right Coal charge state is monitored in real time in coal bunker, is provided foundation for the fuel management that puts into operation, is improved unit entirety management level.

The run coal bin (5) is the coal bunker section that original coal bunker remains.

The vibrator (6), is mounted near the automatic loosening apparatus of coal bunker (7), is that the auxiliary of automatic loosening apparatus (7) is dredged Loose device.It is controlled by control device (7.5).

The automatic loosening apparatus (7) is filled by oil cylinder (7.1), pull rod (7.2), scraper plate (7.3), oil pipe (7.4), control It sets the part such as (7.5), petrol station (7.6) to form, be mounted on run coal bin (5) and dilatation coal bunker (3), using automatic, manual, timing Parallel logic control drives loosening machine pull rod (7.2) up and down reciprocatingly to transport along coal bunker wall by petrol station (7.6) drive cylinder (7.1) It is dynamic, the structure of chute blockage layer is destroyed, is achieved the purpose that loose.Automatic loosening apparatus and vibrator (6) are chain, optimize loose effect.

The novel hydraulic material cut-off gate (8) is driven using petrol station (7.6), and oil cylinder (7.1) pushes pipe valve door-plate to advance Or retreat, it realizes opening or closing for pipe valve, and can easily adjust pipe valve aperture, achievees the purpose that control coal charge flow.Liquid Press pipe valve to be equipped with close to switch, can feed back in place signal to control device (7.5).Hydraulic pipe valve can control on the spot, can also lead to Cross remote transfer signal control.User can select the hydraulic cut-off gate of individual event or bidirectional hydraulic cut-off gate according to the size of coal spout.

The coal stream detection switch (9), it is chain with control device (7.5), it is mounted on above the internal belt of feeder (1), It can be detected at the first time when the reduction of coal stream or disconnected coal, transmit signals to control device (7.5), judgement promptly and accurately Whether chute blockage, pass through control device (7.5) and control automatic loosening apparatus (7), vibrator (6) sequentially-operating.

The utility model has the following advantages compared with prior art:

1. the advantages of using multilayer dilatation coal bunker structure:

1. removing segmental defect present in original coal bunker structure.In coal bunker installation process, it often will appear coal bunker axis Line and feeder inlet axis on the same line or pipe valve and feeder entrance are apart from excessive, do not lead to pipe valve lower part coal breakage The problems such as too long is managed, to influence the flowing of coal charge.

2. reducing lower coal bulkhead to the pressure of coal charge, improves the mobile performance of coal charge in coal bunker, effectively reduce chute blockage, canopy Coal, generation that is hardened, revealing the problems such as eye.

3. each layer coal bunker is connected using steel plate welding manner, good airproof performance, no powder leakage.

4. construction is simple.Only coal bunker lower part fraction warehouse is transformed, does not influence coal bunker integral strength, it will be in coal bunker Coal charge can construct after emptying, construction is simple.

2. the advantages of using automatic loosening apparatus:

1. loose effect is good.Loosening machine is loose since the adhesive layer of blocking, destroys the basis of blocking, effective percentage is 98% More than.

2. control logic is advanced.Control strategy is summarized by many years field experience, is patrolled parallel using manual, automatic, timing Control mode is collected, control logic is advanced.

3. flowing coal charge without influence.Pull rod is close to coal bunker wall and pumps, and does not influence coal charge in coal bunker Flowing.

4. reliable and stable.Installation is simple, and maintenance is small, and service life of equipment is long.

3. the advantages of using flexible coal spout:

1. the coal breakage pipeline section between pipe valve and feeder is changed to flexible material, sealing is tight, will not generate powder leakage, and coal breakage Pipe have elasticity, once coal breakage pipeline section occur chute blockage when, simply beat can be completed it is loose；

2. improved coal spout reduces the generation of chute blockage for volume expansion structure convenient for the flowing of coal charge；

3. absorbing noise；

4. personnel convenient to overhaul overhaul pipe valve and coal bunker, flexible coal spout can be opened when needing, thus enter coal bunker into Row maintenance.

4. the advantages of using novel hydraulic material cut-off gate:

1. executing agency is to surge, stable, without jam faults.

2. opening and closing position with duplicate protection (position, time), reliable in action.

3. door-plate aperture can be seen in operator, easily operated.

4. maintenance is small.Coal is few more than door-plate backhaul gap, and half a year need to only clear up once.

5. the open and close of door-plate can be controlled or be remotely controlled on the spot

5. the advantages of using coal bin coal position, safety monitoring system:

1. can raw coal transport status, coal position situation and safe condition inside intuitive monitoring coal bunker, go wrong and send out early It is existing, it handles in time；

2. historical record is accomplished effectively to track；

3. in-service monitoring, On-line Control, online management provide foundation for management；

4. remotely being monitored by internal network, it is ensured that coal charge conveying is unimpeded, improves the efficiency of equipment, improves the work of unit Performance.

6. the advantages of whole system:

1. thoroughly eliminating, coal bunker is stifled, coal security risk of breaking.The problem of from chute blockage, canopy coal, root started with, and thoroughly eliminated safety Hidden danger.Even if coal quality particle is small, humidity is big, more grey matters, containing coal slime or when mixing burning coal slime, remains to reach ideal effect, it is ensured that The reliable and stable operation of system.

2. increasing economic efficiency and safety benefit.The throwing of the oil plant as caused by coal bunker chute blockage, canopy coal can be greatly decreased in the system Enter expense, eliminate the security risks such as boiler extinguishment, non-programmed halt, and greatly reduce the workload of field maintenance person, improves Bunker management is horizontal.

3. reducing labor intensity and equipment loss.The investment of coal bunker total management system ensure that being normally carried out for production, And field maintenance workload is greatly reduced, avoid corresponding equipment loss.

4. it is horizontal to improve unit integrated management.Coal bunker total management system can effectively monitor raw coal conveying shape inside coal bunker State and safe condition, it is ensured that coal charge is given unimpeded, improves the efficiency of equipment, improves the working performance of unit.

Detailed description of the invention:

Fig. 1 coal bunker total management system structural schematic diagram

In figure: 1 feeder, 2 flexible coal spouts, 3 dilatation coal bunkers, 4 coal bin coal positions, safety monitoring system, 5 run coal bins, 6 vibrations Make device, 7 automatic loosening apparatus, 7.1 oil cylinders, 7.2 pull rods, 7.3 scraper plates, 7.4 oil pipes, 7.5 control cabinets, 7.6 petrol stations, 8 News Press material cut-off gate, 9 coal stream detection switch.

Specific embodiment:

Specific embodiment of the present utility model is described in detail below, it should be appreciated that described herein Specific embodiment is only used for describing and explaining the present invention, and is not intended to limit the utility model.

Traditional coal chamber structure, chute blockage occur mainly in coal bunker lower part, and 1.5 meters of coal bunker diameter or so hereinafter, this is because coal Storehouse lower volume sharply becomes smaller, caused by bulkhead increases coal charge pressure.Multilayer volume expansion structure coal bunker is transformed original taper storehouse It transform the form of two or three taper storehouses splicing as, the topside area of lower part warehouse is greater than the bottom area of top warehouse, coal Material in coal bunker movement can approximation be considered as fluid, from top, warehouse enters during the warehouse of lower part, has carried out dilatation, coal to coal charge Expect that the pressure by bulkhead reduces, and increases the effect that gravity flows coal charge, improves the mobile performance of coal charge in warehouse, reduces The generation of chute blockage phenomenon.

Novel hydraulic material cut-off gate is welded at mouth under dilatation coal bunker, improves over the structure of old-fashioned pipe valve, to coal Stream is dynamic, and without influence, aperture is adjustable, easy to operate, runs smoothly, and impact is small, closes reliably, and performance is stablized, easily operated, dimension Shield amount is small.And a set of control system and hydraulic oil unit are shared with automatic loosening apparatus, realizes integrated chain control.

Mouth connects flexible coal spout under novel hydraulic material cut-off gate, flexible coal spout it is suitable for reading it is small, lower mouth is big, lower mouth is direct Feeder entrance is connected, flexible coal spout is made of high abrasion coal conveyer belt, is highly advisable with 300mm ~ 800mm.By pipe valve Coal breakage pipeline section between feeder is changed to flexible material, and sealing is tight, will not generate powder leakage, and flexible coal spout has elasticity, Once coal breakage pipeline section occur chute blockage when, simply beat can be completed it is loose.

Square hole is opened on run coal bin and dilatation coal bunker, welds oil cylinder, oil cylinder executes axis and scarfier is connected with pin shaft. Oil cylinder is connected to hydraulic oil unit with oil pipe, and hydraulic oil unit is controlled by control device.When chute blockage, canopy coal occurs, feeder supply Amount is insufficient, and coal stream detection switch detects disconnected coal automatically and issues disconnected coal signal, and logic control is driven by petrol station drive cylinder Loosening machine pull rod pumps along bulkhead, destroys the structure of chute blockage layer, achievees the purpose that automatic loose.

By the way that control device is arranged, the automatic loosening apparatus of coal bunker can be made to have following 3 kinds of operating modes, to adapt to difference The demand of live service condition:

1, manual mode realizes manual control device's start and stop on the spot, can also be used as Daily Round Check use；

2, distance control mode, it can be achieved that the start and stop of central station of floating dock remote control equipment (operations staff passes through tele-control system Observation feeder current conditions judge feed bin whether chute blockage, to control equipment start-stop)；

3, automatic control mode, there are two types of operating mechanisms for this mode tool: first is that by disconnected coal signal control starting, when disconnected coal is sent out When raw, coal stream detection switch issues disconnected coal signal enabling equipment operation, after disconnected coal blackout and the runing time that sets To later, equipment is automatically stopped operation；Second is that timing operation, the time interval of operation can according to need setting.

Under automatic control mode, once there is chute blockage situation, system will start automatically according to disconnected coal signal, generally exist Chute blockage phenomenon will disappear within 10 seconds or so, and after chute blockage phenomenon disappears, after system operation time arrives, equipment is automatically stopped fortune Row.

Under the timing operation mechanism in manual mode, distance control mode and automatic mode, coal bunker total management system The comprehensive thorough block clearing of coal bunker can be realized within 1 minute, built bridge so as to thoroughly solve material, tied and encircle, block etc. Phenomenon.

Several vibrators are installed on each run coal bin and dilatation coal scuttle, and vibrator control power supply is introduced into intelligent control system System.

Long-range observation control may be implemented in coal bin coal position, safety monitoring system, central station of floating dock monitoring, by mouse or distant Device is controlled, any camera image signals in this system can be recalled on any video output terminals all the way, and can move to video camera It is operated., can be in the range of any setting by programming, timing cycle display image signals.System uses high definition Clear SONY all-in-one machine, 12 Zoom Lens, auto iris, configuration electric platform, encoder and camera lens dust-extraction unit, effectively It ensure that the operation steady in a long-term of system.Monitoring system can be with the coal position inside in-service monitoring coal bunker is high and low and raw coal is in storehouse Distribution and mobility status, give one good man-machine interface of operations staff, alleviate the psychological pressure of operations staff.

Integrated management can be realized, must be determined in unit running process according to factors such as load, defeated coal transport power and reliabilities Phase carries out the operation of burning low coal position to coal bunker, to reduce coal seam pressure, so that coal in coal bunker is flowed frequently blocking not easy to harden, by coal position Monitoring system provides reliable coal bunker level indicator.Coal bunker inner product coal is burnt into sky as far as possible before blowing out, in order to avoid the fine breeze for causing humidity big It is hardened and cannot dredge, so that the cleaning of coal bunker wall is reduced frictional resistance.

Claims (5)

1. a kind of coal bunker total management system, by feeder (1), flexible coal spout (2), dilatation coal bunker (3), coal bin coal position, peace Full monitoring system (4), run coal bin (5), vibrator (6), automatic loosening apparatus (7), novel hydraulic material cut-off gate (8), coal stream Detection switch (9) composition, it is characterized in that: raw coal transport status and safe condition inside coal bunker can effectively be monitored, from chute blockage, canopy The problem of coal, root started with, and thoroughly eliminated the security risk of stifled, the disconnected coal of coal bunker, it is ensured that coal charge is given unimpeded, improves the effect of equipment Rate improves the working performance of unit.

2. coal bunker total management system according to claim 1, it is characterised in that coal bin coal position, safety monitoring system (4), Can be monitored online run coal bin (5) and dilatation coal bunker (3) internal coal position height, raw coal distribution and mobility status in storehouse and Safe condition.

3. coal bunker total management system according to claim 1, it is characterised in that flexible coal spout (2), is by New Pressure material cut-off gate (8) to the coal breakage pipeline section between feeder (1) is changed to the cone tube shape adapter tube of flexible material production.

4. coal bunker total management system according to claim 1, it is characterised in that dilatation coal bunker (3) is by run coal bin (5) It is transformed, is truncated at about 3.5 meters height suitable for reading away from feeder (1), increases by one section of dilatation coal bunker (3), original coal bunker is changed The form for the splicing of two or three taper storehouses is made, the topside area of lower part warehouse is greater than the bottom area of top warehouse, dilatation Coal bunker (3) increases section suitable for reading with the top place of docking, keeps run coal bin (5) secondary dilatation loose.

5. coal bunker total management system according to claim 1, it is characterised in that automatic loosening apparatus (7), by oil cylinder (7.1), the part such as pull rod (7.2), scraper plate (7.3), oil pipe (7.4), control device (7.5), petrol station (7.6) forms, the control Device (7.5) processed can be to automatic loosening apparatus (7), vibrator (6), novel hydraulic material cut-off gate (8), coal stream detection switch (9) automatic, manual, timing parallel logic control is carried out.