CN203857473U - Ash discharge delivery system of coal economizer - Google Patents
Ash discharge delivery system of coal economizer Download PDFInfo
- Publication number
- CN203857473U CN203857473U CN201420157167.4U CN201420157167U CN203857473U CN 203857473 U CN203857473 U CN 203857473U CN 201420157167 U CN201420157167 U CN 201420157167U CN 203857473 U CN203857473 U CN 203857473U
- Authority
- CN
- China
- Prior art keywords
- ash
- economizer
- pipe
- valve
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000003245 coal Substances 0.000 title abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 23
- 239000010959 steel Substances 0.000 claims abstract description 23
- 230000006698 induction Effects 0.000 claims description 21
- 230000005540 biological transmission Effects 0.000 claims description 11
- 238000005273 aeration Methods 0.000 claims description 6
- 238000005243 fluidization Methods 0.000 claims description 6
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 2
- 238000007664 blowing Methods 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 239000000428 dust Substances 0.000 abstract description 2
- 238000009423 ventilation Methods 0.000 abstract 2
- 239000002956 ash Substances 0.000 description 89
- 239000007789 gas Substances 0.000 description 33
- 230000006872 improvement Effects 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 239000002893 slag Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 241000276425 Xiphophorus maculatus Species 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000010884 boiler slag Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 230000001965 increasing effect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Air Transport Of Granular Materials (AREA)
Abstract
The utility model discloses an ash discharge delivery system of a coal economizer. The ash discharge delivery system of the coal economizer comprises a plurality of coal economizer ash hoppers, wherein a transmitter is connected below each coal economizer ash hopper through a feed pipe; a plurality of transmitters are serially connected through a middle pipe, one side of an inlet of the middle pipe is connected with air delivery equipment through an air delivery pipe, and one side of an outlet of the middle pipe is connected with a steel ash silo on the outer side of a boiler room through an ash delivery pipe; fluidized air pipes are connected between the air delivery pipe and each transmitter, and a remote air replenishing pipe is connected between the air delivery pipe and the ash delivery pipe; an air replenishing casing is sheathed in parallel at the internal upper parts of the middle pipe and the ash delivery pipe, the inlet end of the air replenishing casing is connected with assistant-blowing air delivery equipment and is provided with a pneumatic valve controlled by a PLC (Programmable Logic Controller), and ventilation holes in which ventilation orifice plates are arranged are formed at internals in the air replenishing casing. The ash discharge delivery system of the coal economizer has the advantages that the ash delivery distance is shortened, the energy consumption of compressed air is reduced, the length of a downcomer is shortened, the pipe blockage and wear are relieved and the comprehensive utilization of clinker in a boiler and ash in a dust catcher is not influenced.
Description
Technical field
The utility model relates to a kind of economizer ash discharge induction system, specifically a kind of economizer ash discharge induction system that is particularly useful for the coal-fired power plant of coal-powder boiler dry ash extraction.
Background technology
The flue gas that the boiler tail of coal-burning power plant produces carries out heat exchange through economizer and feedwater, falls into afterwards economizer hopper.Economizer ash discharge have self particle thick, than the characteristic such as great, temperature is high, viscosity is large, gas permeability is high, be difficult to carry, in some coal-burning power plant's design, for ease of main frame, arrange, reduce the disturbances such as defeated ash is not smooth, shielded economizer hopper ash discharge, but power plant goes wrong after putting into operation.
In prior art, economizer ash discharge induction system is generally located at economizer horizontal flue below, air preheater top, and its ash discharge mode of movement can be divided into the defeated ash of waterpower, negative pressure and positive pressure pneumatic ash handling.
Wet ash Transportation need be rushed buck and discharge of wastewater in a large number, and high temperature ash is when rushing buck and mixes, can produce steam, and long-term operation causes equipment, pipeline scale obstruction, and repair and maintenance workload is large, and contaminated environment is unfavorable for economizing on water and environmental protection; And be not suitable with the coal-burning power plant that calcium oxide content is higher, because rush the activity that buck has changed dry ash, affect the comprehensive utilization of flyash, cause the investment cost of storage ash field, civil engineering to increase severely, do not meet the basic demand that construction project is economized on water, saved land, falls cost.
Negative-pressure pneumatic transmission system, being generally dilute phase carries, it is the swabbing action gas solid separation of utilizing vaccum-pumping equipment, by mass transport to expecting that storehouse stores, because of this system fluctuation of service, the more difficult designing requirement that reaches of exerting oneself, the problem such as equipment attrition is serious, has limited negative-pressure pneumatic and has carried the use in power system.
At present, in the induction system of economizer ash discharge, often adopt malleation dense phase pneumatic conveying system.Through continuous summary of Design and operation practice, economizer malleation dense phase pneumatic conveying system has following several transportation schemes:
(1) set up a road pipeline to grey storehouse.Consider the self-characteristic of economizer ash discharge, on the way, be equiped with making-up air device, set up a tonifying Qi pipeline parallel with ash conveying pipe, the arrival end of tonifying Qi pipeline connects air compressor, the passage that connection ash conveying pipe is set at interval on tonifying Qi pipeline, and valve is set on passage, valve is controlled by control device is unified, opens all valves and carry out tonifying Qi and blow stifled while finding that there is stifled grey situation.When making-up air device is alleviated plugging pressure, also increase air energy consumption and the wearing and tearing to pipeline, be unfavorable for the long-term stability operation of this system.And the grey storehouse that final is with sending to mixes with the ash of electric cleaner, apart from 400 meters of economizer hoppers at least three, fed distance is far away, and elbow is many, serious wear.
(2) after merging with deduster one electric field, share an ash conveying pipe and enter Hui Ku.This system, improves the particle property of economizer ash discharge, favourable to carrying, but still the frequent problem such as blockage phenomenon and serious wear.Boiler soot-blowing, or after ature of coal changes and to cause that ash content increases, because deduster one electric field bears approximately 80% defeated ash burden, and then has influence on the normal defeated ash of deduster one electric field.
(3) be delivered to slag storehouse.This arranges that fed distance is short, and channel bend and air consumption are all significantly reduced, and the particle of economizer ash discharge is large, and its characteristic is similar to slag, does not generally affect the comprehensive utilization of dry slag.But because of economizer ash gas mixture enter in the impact of inlet air of boiler amount, ash discharge entrucking process emit grey phenomenon, to the increase of slag storehouse roof scrubber live load, the strict segmentation requirement of more difficult satisfied comprehensive utilization user to lime-ash byproduct, in engineering application, have certain limitation.
(4) be delivered to the layout of deduster gas approach.Ash conveying pipe is short, and defeated grey vertical range is little, and air consumption is few, and because electric precipitation gas approach operating condition is negative pressure state, it is very easy to carry.But at interface, to deduster flue, there is relative washing away at place, current-sharing in electric precipitation is distributed and to be had a certain impact, and then affect dust collection efficiency, the selection of simultaneously scuff resistance of follow-up equipment and air-introduced machine being exerted oneself also has a certain impact.
Utility model content
The utility model technical issues that need to address are to provide a kind of economizer ash discharge induction system.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is:
An economizer ash discharge induction system, comprises the some economizer hoppers that are arranged on boiler back end ductwork, and the below of described each economizer hopper all connects a transmitter by a feed pipe that is provided with inlet valve group;
Some transmitters are connected into a road by intermediate conduit, the arrival end of intermediate conduit connects gas transmission equipment by being provided with the gas pipeline of intake valve group, and the port of export of intermediate conduit connects by being provided with the ash conveying pipe of outlet valve the steel ash storehouse that is positioned at outside, boiler room;
Described intermediate conduit and ash conveying pipe arrange initiatively making-up air device, initiatively making-up air device comprises that a parallel sleeve is located at the tonifying Qi sleeve pipe on the top in intermediate conduit and ash conveying pipe, the arrival end connection of tonifying Qi sleeve pipe helps blows gas transmission equipment and the pneumatic operated valve of being controlled by PLC is set, on tonifying Qi sleeve pipe, interval arranges the passage that Open Side Down, and the middle part of passage radially arranges venthole plate along tonifying Qi sleeve pipe;
The fluidized wind pipeline that is provided with fluidisation valve group that is connected respectively to each transmitter is set on described gas pipeline, the long-range tonifying Qi pipeline that is provided with long-range aeration valve group of the exit side that is connected to ash conveying pipe top discharge valve is also set on gas pipeline.
Further improvement of the utility model is: between described passage and venthole plate, the openings of sizes of corresponding air inlet one side is greater than the openings of sizes of the corresponding side of giving vent to anger.
Further improvement of the utility model is: the sidewall opening on the tonifying Qi sleeve pipe at corresponding passage place is the intilted conical surface that outer imperial palace is little.
Further improvement of the utility model is: described inlet valve group is included in circumference joint concentric reducer, manual inserting plate door, telescopic joint, the pneumatic double gate valve that economizer hopper downside is arranged in turn.
Further improvement of the utility model is: described intake valve group comprises manual modulation valve, pneumatic operated valve, check-valves and the charge flow rate orifice plate of arranging in turn from air inlet one side.
Further improvement of the utility model is: described fluidisation valve group comprises manual ball valve and the non-return valve of arranging in turn from gas pipeline one side.
Further improvement of the utility model is: described long-range aeration valve group comprises valve group in parallel and the non-return valve of the manual ball valve arranged in turn from gas pipeline one side and pneumatic ball valve, and the junction of long-range tonifying Qi pipeline and ash conveying pipe arranges mixed grey device.
Further improvement of the utility model is: between described each economizer hopper and corresponding transmitter, the ventilative bypass in parallel with feed pipe is set, in the bypass of breathing freely, pneumatic double gate valve is set.
Further improvement of the utility model is: the described corresponding economizer hopper setting of transmitter near steel ash storehouse is connected to row's blast pipe road of the feed side of ash conveying pipe top discharge valve, and row arranges pneumatic double gate valve on blast pipe road.
Further improvement of the utility model is: described transmitter be arranged on economizer platform under draw formula transmitter, the arrival end in steel ash storehouse is provided with the moving double gate valve of storehouse top gas, on steel ash storehouse and transmitter, is equipped with level-sensing device.
Owing to having adopted technique scheme, the technological progress that the utility model is obtained is:
The utility model is carried economizer ash discharge by the mode of serial transmission device, and is delivered to the steel ash storehouse near steel ash bucket structure on vacant lot outside the boiler at economizer hopper place by actual conditions subdivision.Two stoves set up separately or shared steel ash storehouse, and preferably 2～4 economizer hoppers form a defeated grey unit, and each Shu Hui unit all arranges independently to be mixed separately grey device or always mix grey device mono-of the female Guan Shangshe of defeated ash, so that system debug operation.The utility model shortened defeated ash distance, reduced compressed air energy consumption, avoided " U " type pipeline appearance, shortened down-comer length, alleviated plugging and the wearing and tearing state of affairs, do not affect the comprehensive utilization of boiler slag and deduster ash simultaneously yet, meet the principle of " dry hygroscopic water row, thickness divide row and lime-ash to divide row ", also meet national energy-saving, save land, economize on water, fall the construction requirements of cost, be particularly useful for the coal-fired power plant of coal-powder boiler dry ash extraction.
The utility model arranges initiatively making-up air device in induction system, by passive the blowing in traditional outside, stifledly changes inner automatic block-resistant into and block clearing combines.When there is feed blocking in somewhere in intermediate conduit or ash conveying pipe, the discharge pressure that stops up the place ahead increases and forces delivery air to enter tonifying Qi sleeve pipe, the compressed air stream that enters tonifying Qi sleeve pipe flows out with higher speed from the opening of clog downstream, thereby the material that this place is stopped up produces disturbance and blows logical effect, automatic block clearing, guarantees the normal conveying of material in pipe.
The opening of the utility model venthole plate both sides is set to not of uniform size, can make the air-flow of both sides distribute more reasonable, be convenient to obstruction place to form perturbation action, and the sidewall of passage offers into angle, is also convenient in the smooth and easy inflow tonifying Qi of air sleeve pipe.
The utility model is designed to be greater than boiler by conveying capacity and uses 1.5 times of the maximum ash discharge amount of design coal economizer hopper, be not less than to use and check 1.2 times that coal ash is measured, and the maximum ash discharge amount at economizer hopper place in the time of should being greater than boiler soot-blowing, to adapt to the variation of boiler combustion ature of coal.Need to match with the ash method of economizer hopper simultaneously.If adopt regular ash discharge mode, this system will adapt to ature of coal variation, shortens running time again.
Air delivery device of the present utility model preferably draws and connects the female pipe of compressed air from air compressor house air accumulator, pressure in the female pipe of compressed air is generally 0.75 ~ 0.8MPa, on the female pipe of compressed air, the pressure-reducing valve group being comprised of Hand-operated butterfly valve, pressure-reducing valve, pressure transmitter, safety valve is set, then connecting gas transmission pipe road, carry compressed-air actuated discharge pressure, flow velocity, grey gas to compare etc., all need according to engineering physical condition choose reasonable such as material characteristic, conveying capacity, fed distance, conveying mechanism, transmission device types, environmental conditions.If carry while containing inflammable and explosive material, need to adopt inert gas as pumped (conveying) medium, in order to avoid contain oxygen in air, give and carry pre-buried hidden danger.
The initiating terminal of tonifying Qi sleeve pipe of the present utility model accesses a road and helps and blow conveying compressed air system, adopt pneumatic operated valve to control and to include PLC in program control, before induction system drops into conveying or while finishing to carry, pneumatic operated valve is opened and induction system simultaneous purge tonifying Qi sleeve pipe, when ash conveying pipe is normally carried, this pneumatic operated valve is in closed condition.This design is convenient to make up internal bypass pipeline and is taken ash conveying pipe flow area, the impact on ash conveying pipe conveying technology data.
The utility model arranges manual modulation valve and charge flow rate orifice plate in intake valve group, and as far as possible near defeated grey unit air inlet, charge flow rate orifice plate is added to bypass, to guarantee even air feed simultaneously.
The utility model suitably increases (as be not less than ash conveying pipe diameter 8 times) to the radius of curvature of ash conveying pipe elbow, and lining wear-resistant material, better to solve the problem of plugging and wearing and tearing.
Inlet valve of the present utility model changes pneumatic double gate valve into by the higher high temperature resistant dome valve of cost, dome valve is watertight construction, water supply water return pipeline need to be set, and valve event is frequent, always water is revealed, and pollutes external environment, and be unfavorable for carrying, the all corresponding increasings of the cylinder tracheae of pneumatic double gate valve, can increase valve event ability, shorten valve switch running time.
Each transmitter of the present utility model also connects ventilative bypass, and charging front opening is convenient to discharge the internal pressure of transmitter, makes lower ash smooth and easy, has also guaranteed transmitter safety simultaneously.
The utility model arranges fluidized wind pipeline, ash conveying pipe is arranged to long-range tonifying Qi pipeline and mixed grey device transmitter, guarantees that gas ash mixes, and discharging is smooth and easy.
The utility model is provided with row blast pipe road in the front side of outlet valve, pneumatic double gate valve is set on pipeline, can effectively discharge the pressure in ash conveying pipe, when slowing down grey gas velocity, alleviates the wearing and tearing to pipeline.
Steel ash of the present utility model storehouse arrival end is provided with the moving double gate valve of storehouse top gas, is equipped with level-sensing device, so that effectively chain and monitoring on steel ash storehouse and transmitter.
Accompanying drawing explanation
Fig. 1 is system schematic of the present utility model;
Fig. 2 is the structural representation of active making-up air device of the present utility model.
Wherein, 1, economizer hopper, 2, transmitter, 3, steel ash storehouse, 4, feed pipe, 5, intermediate conduit, 6, ash conveying pipe, 7, gas pipeline, 8, long-range tonifying Qi pipeline, 9, ventilative bypass, 10, row blast pipe road, 11, fluidized wind pipeline, 12, pneumatic double gate valve, 13, tonifying Qi sleeve pipe, 14, passage, 15, venthole plate, 41, circumference joint concentric reducer, 42, manual inserting plate door, 43, telescopic joint, 71, manual modulation valve, 72, pneumatic operated valve, 73, check-valves, 74, charge flow rate orifice plate, 81, manual ball valve, 82, pneumatic ball valve, 83, non-return valve, 84, mixed grey device.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is described in further details:
An economizer ash discharge induction system, as shown in Figure 1, is provided with three economizer hoppers 1 at boiler back end ductwork, and the below of each economizer hopper 1 all connects a transmitter 2 by feed pipe 4.Three transmitters 2 are connected into a road by intermediate conduit 5, and the inlet side of intermediate conduit 5 connects gas transmission equipment by gas pipeline 7, and outlet one side of intermediate conduit 5 connects the steel ash storehouse 3 of a steel ash bucket structure by ash conveying pipe 6.
Described transmitter 2 draws formula transmitter under being, transmitter 2 can be fixedly supported on economizer platform or be suspended on economizer ash headwall.Described feed pipe 4 is connected between the bottom of economizer hopper 1 and the top of transmitter 2.Inlet valve group is set on feed pipe 4, comprises circumference joint concentric reducer 41, manual inserting plate door 42, telescopic joint 43, the pneumatic double gate valve 12 from economizer hopper 1 downside, arranged in turn.In addition, ventilative bypass 9 is also set between the top of the top of each economizer hopper 1 and corresponding transmitter 2, i.e. ventilative bypass 9 is arranged in parallel with feed pipe 4, in ventilative bypass 9, pneumatic double gate valve 12 is set, before charging, open pneumatic double gate valve 12, be convenient to discharge transmitter internal pressure.
Described gas pipeline 7 is got gas from the female pipe of compressed air, from air compressor house air accumulator, draw and connect the female pipe of a compressed air, pressure in the female pipe of compressed air is generally 0.75 ~ 0.8MPa, on the female pipe of compressed air, the pressure-reducing valve group being comprised of Hand-operated butterfly valve, pressure-reducing valve, pressure transmitter, safety valve is set, then connecting gas transmission pipe road.Intake valve group is set on gas pipeline 7, and intake valve group comprises manual modulation valve 71, pneumatic operated valve 72, check-valves 73 and the charge flow rate orifice plate 74 of arranging in turn from the female pipe of compressed air one side.
Between described gas pipeline 7 and each transmitter 2, be all connected fluidized wind pipeline 11, the end of each fluidized wind pipeline 11 is all connected to transmitter 2 tops, connects by a main pipeline in the top of each fluidized wind pipeline 11.The top of main pipeline is connected on gas pipeline 7 between pneumatic operated valve 72 and check-valves 73, the tail end plugs of main pipeline.Fluidisation valve group is set on each fluidized wind pipeline 11, and fluidisation valve group comprises manual ball valve 81 and the non-return valve 83 of arranging in turn from gas pipeline one side.
On described ash conveying pipe 6, outlet valve is set, the preferred pneumatic double gate valve of outlet valve.The row's blast pipe road 10 being communicated with near the top of the economizer hopper 1 in the grey storehouse 3 of steel with most end one-level is set on the ash conveying pipe 6 of the feed side of outlet valve front side, row arranges pneumatic double gate valve 12 on blast pipe road 10, can effectively discharge the pressure in ash conveying pipe, when slowing down grey gas velocity, alleviate the wearing and tearing to pipeline.Setting and the air inlet side of the intake valve group of gas pipeline 7 or the long-range tonifying Qi pipeline 8 being communicated with the female pipe of compressed air on the ash conveying pipe 6 of the exit side of outlet valve rear side, long-range tonifying Qi pipeline 8 arranges long-range aeration valve group near ash conveying pipe 6, long-range aeration valve group comprises manual ball valve 81 and the pneumatic ball valve 82 being arranged in parallel, also be included in the non-return valve 83 that pneumatic ball valve 82 rear sides arrange near ash conveying pipe 6 one sides, the junction of long-range tonifying Qi pipeline and ash conveying pipe arranges mixed grey device 84.
Intermediate conduit 5 between some transmitters 2 and ash conveying pipe 6 arrange initiatively making-up air device.As shown in Figure 2, initiatively making-up air device comprises a tonifying Qi sleeve pipe 13, and tonifying Qi sleeve pipe 13 parallel sleeves are located in the upper space in intermediate conduit 5 and ash conveying pipe 6.The pneumatic operated valve that the arrival end setting of tonifying Qi sleeve pipe 13 is controlled by PLC, and connect the gas transmission equipment that blows that helps.On tonifying Qi sleeve pipe 13, interval arranges the passage 14 that Open Side Down, passage 14 places arrange the venthole plate 15 of the platy structure of a radial arrangement along tonifying Qi sleeve pipe, venthole plate 15 eccentric settings, between passage 14 and venthole plate 15, the openings of sizes of corresponding air inlet one side is greater than the openings of sizes of the corresponding side of giving vent to anger.Corresponding, the air inlet of passage 14 is the inclined opening structure that outer imperial palace is little, the sidewall opening of the tonifying Qi sleeve pipe 13 at corresponding passage 14 places is the intilted conical surface.
Described steel ash storehouse 3 is arranged on the vacant lot outside boiler room, and the arrival end in steel ash storehouse 3 is provided with the moving double gate valve of storehouse top gas, on steel ash storehouse 3 and transmitter 2, is equipped with level-sensing device, so that effectively chain and monitoring.The port of export in steel ash storehouse 3 is set to dry type and two kinds of way of outputs of wet type of dry ash bulk machine and twin shaft wet type agitator.On the output channel in steel ash storehouse 3, valve group used, the moving double gate valve of storehouse top gas and economizer local control box etc. can draw by feed channel from boiler room instrument nearby and connect, and the waste water of twin shaft wet type agitator institute water from processing draws and connects, all not shown in figure.
Claims (10)
1. an economizer ash discharge induction system, comprise the some economizer hoppers (1) that are arranged on boiler back end ductwork, it is characterized in that: the below of described each economizer hopper (1) all connects a transmitter (2) by a feed pipe (4) that is provided with inlet valve group;
Some transmitters (2) are connected into a road by intermediate conduit (5), the arrival end of intermediate conduit (5) connects gas transmission equipment by being provided with the gas pipeline (7) of intake valve group, and the port of export of intermediate conduit (5) connects by being provided with the ash conveying pipe (6) of outlet valve the steel ash storehouse (3) that is positioned at outside, boiler room;
Described intermediate conduit (5) and ash conveying pipe (6) arrange initiatively making-up air device, initiatively making-up air device comprises that a parallel sleeve is located at the tonifying Qi sleeve pipe (13) on the top in intermediate conduit (5) and ash conveying pipe (6), the arrival end connection of tonifying Qi sleeve pipe (13) helps blows gas transmission equipment and the pneumatic operated valve of being controlled by PLC is set, the upper interval of tonifying Qi sleeve pipe (13) arranges the passage (14) that Open Side Down, and the middle part of passage (14) radially arranges venthole plate (15) along tonifying Qi sleeve pipe;
The upper setting of described gas pipeline (7) is connected respectively to the fluidized wind pipeline (11) that is provided with fluidisation valve group of each transmitter (2), and the long-range tonifying Qi pipeline (8) that is provided with long-range aeration valve group of the exit side that is connected to ash conveying pipe (6) top discharge valve is also set on gas pipeline (7).
2. a kind of economizer ash discharge induction system according to claim 1, is characterized in that: between described passage (14) and venthole plate (15), the openings of sizes of corresponding air inlet one side is greater than the openings of sizes of the corresponding side of giving vent to anger.
3. a kind of economizer ash discharge induction system according to claim 1 and 2, is characterized in that: the sidewall opening on the tonifying Qi sleeve pipe (13) that corresponding passage (14) is located is the intilted conical surface that outer imperial palace is little.
4. a kind of economizer ash discharge induction system according to claim 3, is characterized in that: described inlet valve group is included in circumference joint concentric reducer (41), manual inserting plate door (42), telescopic joint (43), the pneumatic double gate valve (12) that economizer hopper (1) downside is arranged in turn.
5. a kind of economizer ash discharge induction system according to claim 3, is characterized in that: described intake valve group comprises manual modulation valve (71), pneumatic operated valve (72), check-valves (73) and the charge flow rate orifice plate (74) of arranging in turn from air inlet one side.
6. a kind of economizer ash discharge induction system according to claim 3, is characterized in that: described fluidisation valve group comprises manual ball valve (81) and the non-return valve (83) of arranging in turn from gas pipeline (7) one sides.
7. a kind of economizer ash discharge induction system according to claim 3, it is characterized in that: described long-range aeration valve group comprises valve group in parallel and the non-return valve (83) of the manual ball valve (81) arranged in turn from gas pipeline (7) one sides and pneumatic ball valve (82), and long-range tonifying Qi pipeline (8) arranges mixed grey device (84) with the junction of ash conveying pipe (6).
8. according to a kind of economizer ash discharge induction system described in claim 4～7 any one, it is characterized in that: between described each economizer hopper (1) and corresponding transmitter (5), the ventilative bypass (9) in parallel with feed pipe (4) is set, in the bypass (9) of breathing freely, pneumatic double gate valve (12) is set.
9. according to a kind of economizer ash discharge induction system described in claim 4～7 any one, it is characterized in that: the setting of the described corresponding economizer hopper of transmitter (2) (1) near steel ash storehouse (3) is connected to row's blast pipe road (10) of the feed side of ash conveying pipe (6) top discharge valve, on row blast pipe road (10), pneumatic double gate valve (12) is set.
10. according to a kind of economizer ash discharge induction system described in claim 4～7 any one, it is characterized in that: described transmitter (2) for be arranged on economizer platform under draw formula transmitter, the arrival end in steel ash storehouse (3) is provided with the moving double gate valve of storehouse top gas, on steel ash storehouse (3) and transmitter (2), is equipped with level-sensing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420157167.4U CN203857473U (en) | 2014-04-02 | 2014-04-02 | Ash discharge delivery system of coal economizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420157167.4U CN203857473U (en) | 2014-04-02 | 2014-04-02 | Ash discharge delivery system of coal economizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203857473U true CN203857473U (en) | 2014-10-01 |
Family
ID=51607320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420157167.4U Expired - Lifetime CN203857473U (en) | 2014-04-02 | 2014-04-02 | Ash discharge delivery system of coal economizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203857473U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104528386A (en) * | 2014-12-03 | 2015-04-22 | 镇江市电站辅机厂有限公司 | Pneumatic conveying system of fly ash of dust collector |
| CN106516753A (en) * | 2016-11-30 | 2017-03-22 | 常州市双强机械制造有限公司 | Storehouse pump ash conveying device |
| CN108534159A (en) * | 2018-04-28 | 2018-09-14 | 河南禾力能源股份有限公司 | A kind of automatic pressure regulating device of Industrial Boiler deslagging air compressor machine |
| CN108622661A (en) * | 2018-06-26 | 2018-10-09 | 福建龙净环保股份有限公司 | A kind of air-transport system |
| CN110228710A (en) * | 2019-06-19 | 2019-09-13 | 武汉钢铁有限公司 | The efficient transportation system of dedusting ash and anti-clogging control method |
| CN111410042A (en) * | 2020-05-07 | 2020-07-14 | 西安华电清洁能源技术有限公司 | Anti-blocking energy-saving system and method suitable for powder conveying system |
| CN113060557A (en) * | 2021-03-26 | 2021-07-02 | 大唐洛阳首阳山发电有限责任公司 | Method for improving positive pressure concentrated phase ash conveying system output and optimizing ash conveying operation |
| CN114194834A (en) * | 2021-12-23 | 2022-03-18 | 国家能源集团谏壁发电厂 | Novel non-rigid expansion joint |
-
2014
- 2014-04-02 CN CN201420157167.4U patent/CN203857473U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104528386A (en) * | 2014-12-03 | 2015-04-22 | 镇江市电站辅机厂有限公司 | Pneumatic conveying system of fly ash of dust collector |
| CN106516753A (en) * | 2016-11-30 | 2017-03-22 | 常州市双强机械制造有限公司 | Storehouse pump ash conveying device |
| CN108534159A (en) * | 2018-04-28 | 2018-09-14 | 河南禾力能源股份有限公司 | A kind of automatic pressure regulating device of Industrial Boiler deslagging air compressor machine |
| CN108534159B (en) * | 2018-04-28 | 2023-08-08 | 河南禾力能源有限公司 | Automatic pressure regulating device of air compressor for slag discharge of industrial boiler |
| CN108622661A (en) * | 2018-06-26 | 2018-10-09 | 福建龙净环保股份有限公司 | A kind of air-transport system |
| CN110228710A (en) * | 2019-06-19 | 2019-09-13 | 武汉钢铁有限公司 | The efficient transportation system of dedusting ash and anti-clogging control method |
| CN111410042A (en) * | 2020-05-07 | 2020-07-14 | 西安华电清洁能源技术有限公司 | Anti-blocking energy-saving system and method suitable for powder conveying system |
| CN113060557A (en) * | 2021-03-26 | 2021-07-02 | 大唐洛阳首阳山发电有限责任公司 | Method for improving positive pressure concentrated phase ash conveying system output and optimizing ash conveying operation |
| CN114194834A (en) * | 2021-12-23 | 2022-03-18 | 国家能源集团谏壁发电厂 | Novel non-rigid expansion joint |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203857473U (en) | Ash discharge delivery system of coal economizer | |
| CN104190243B (en) | The coal-burning boiler method of carbide slag desulfurization and equipment thereof | |
| CN102974211A (en) | Circulating fluidized bed boiler in-furnace desulfurization device | |
| CN104528386A (en) | Pneumatic conveying system of fly ash of dust collector | |
| CN103604131B (en) | Suspension type economizer ash-transmission system | |
| CN201203107Y (en) | Bed material adding system of circulating fluid bed boiler | |
| CN202915049U (en) | Energy dissipation ring pipe system of long-distance ore pulp pipe | |
| CN210186850U (en) | Synergistic semi-dry desulfurization system | |
| CN105110015A (en) | Pneumatic force slag removal conveying system | |
| CN103062782A (en) | Dust cleaning system applicable to heat recovery boiler with complex heating surface | |
| CN205860053U (en) | Flying dust Automatic continuous discharger bottom a kind of boiler SCR denitration device | |
| CN203187102U (en) | Micro-silicon density increasing device | |
| CN202935946U (en) | Efficient positive-pressure pneumatic conveying system of pebble coal | |
| CN205011034U (en) | Strength slagging -off conveying system | |
| CN204372915U (en) | Fluidized-bed combustion boiler open type gas spiral coal supply system | |
| CN103148481A (en) | Double-discharge coal feeding system of CFB (Circulating Fluid Bed) boiler | |
| CN204574066U (en) | The device of ash discharge bottom a kind of boiler back end ductwork and steam generator system | |
| CN203571723U (en) | Circulating fluidized bed boiler | |
| CN202893181U (en) | Desulphurization device in circulating fluidized bed boiler | |
| CN206456979U (en) | Pebble coal positive pressure pneumatic conveying device | |
| CN203470339U (en) | Pneumatic steel ball screening machine | |
| CN207191966U (en) | Big barrel dliameter cylindrical reinforced concrete feed bin blockage-clearing device | |
| CN206927271U (en) | The Anti-blocking structure of Industrial Boiler electric precipitation pneumatic ash transmitting system | |
| CN206018661U (en) | A kind of automatic continuous discharger of boiler back end ductwork ash bucket dust stratification | |
| CN203549863U (en) | Suspended type economizer ash conveying system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 050031 No. 6 Jianbei Street, Chang'an District, Shijiazhuang City, Hebei Province Patentee after: POWERCHINA HEBEI ELECTRIC POWER ENGINEERING Co.,Ltd. Address before: 050031 No. 6 Jianbei Street, Chang'an District, Shijiazhuang City, Hebei Province Patentee before: HEBEI ELECTRIC POWER DESIGN & Research Institute |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141001 |
|
| CX01 | Expiry of patent term |