CN201513906U - Bottom slagging device for coal-fired boiler - Google Patents
Bottom slagging device for coal-fired boiler Download PDFInfo
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- CN201513906U CN201513906U CN 200920222211 CN200920222211U CN201513906U CN 201513906 U CN201513906 U CN 201513906U CN 200920222211 CN200920222211 CN 200920222211 CN 200920222211 U CN200920222211 U CN 200920222211U CN 201513906 U CN201513906 U CN 201513906U
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- slag
- coal
- fired boiler
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- resistant metal
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Abstract
一种燃煤锅炉炉底排渣装置，包括位于燃煤锅炉的渣井出口与输渣机之间的箱体，支撑在所述箱体内的由多根耐热金属杆组成的隔栅和位于所述隔栅上的用来挤压炉渣的碎渣机，在所述燃煤锅炉的渣井出口与所述碎渣机之间设有用于限制炉渣下落到所述碎渣机的所述挡板内的导料装置，所述导料装置的上端与所述渣井出口相连，所述导料装置下端的位置更靠近碎渣机的挤压头，所述导料装置的最下端低于碎渣机挡板的最上端。本实用新型解决了从渣井出口落下的灰渣落到碎渣机后方从而影响碎渣机的运行的技术问题，特别适用于各种燃煤锅炉的排渣。
A coal-fired boiler furnace bottom slagging device, comprising a box between the slag shaft outlet of the coal-fired boiler and the slag conveyor, a grille composed of multiple heat-resistant metal rods supported in the box and a The slag crusher on the grille is used to squeeze the slag, and the baffle for restricting the slag from falling to the slag crusher is provided between the slag well outlet of the coal-fired boiler and the slag crusher. The material guide device in the plate, the upper end of the material guide device is connected with the outlet of the slag well, the position of the lower end of the material guide device is closer to the extrusion head of the slag crusher, and the lower end of the material guide device is lower than The uppermost end of the crusher baffle. The utility model solves the technical problem that the ash falling from the outlet of the slag well falls to the rear of the slag crusher, thereby affecting the operation of the slag crusher, and is especially suitable for slag discharge of various coal-fired boilers.
Description
Technical field
The utility model relates to a kind of slag-draining device, specifically a kind of output equipment that is used for boiler furnace bottom lime-ash.
Background technology
At present, the deslagging mode of coal burning boiler of power station has hydraulic slag discharging system and equipment and dried slag removing system and equipment.Adopt hydraulic slag discharging equipment, most high temperature bulk slags and big Jiao fall in the water and can produce granulation, become less clinker, are convenient to carry.But hydraulic slag discharging system and equipment have the following disadvantages: (1) slag directly falls into cooling water by boiler bottom, has made combustible in the lime-ash and contained heat waste, and produced simultaneously steam can corrode the boiler bottom parts; (2) water resources consumption is big, and the discharging of grey pulp water can cause environmental pollution, and the disposal cost height; (3) system complex, Maintenance and Repair expense height.Therefore at present dried slag removing technology that adopt more.But adopt dried slag removing equipment; the granulation that does not have water; can produce the freezing of a furnace clinker of bulk; if this big clinker directly drops on the steel band that smashes slag conveyer on the slag conveyer easily; and big or small clinker and disintegrating slag all directly enter the load that slag crusher can increase slag crusher; cause the efficient of slag crusher low, the fault rate height.In actual motion, in time, have because of slag crusher stops up, reasons such as load is excessive, grit is not broken, chain disconnection cause the dried slag removing system out of service.
In order to address the above problem, in Chinese patent literature CN2459550Y, a kind of coal-burning boiler high-temperature ash dry type conveying device is disclosed, this device has a steel band slag conveyer, an one hydraulic pressure slag crusher and a barrier are arranged above the steel band slag conveyer, and barrier is installed in the below of hydraulic pressure slag crusher, and hydraulic pressure slag crusher and barrier pass through case supports, the top of casing with link to each other in the outlet of the slag well of boiler bottom, the bottom of casing links to each other with the top of steel band slag conveyer.Described barrier is to be made of some heat resisting pipes, the two end supports of steel pipe is on casing, and be communicated with two cooling water pipes respectively, the extrusion head of described hydraulic pressure slag crusher is a guide rail movement with the steel pipe of forming barrier, the part that extrusion head contacts with barrier is a waveform, and described extrusion head is a pair of intermeshing tooth-shape structure; Owing to increased the hydraulic pressure slag crusher and the barrier of disintegrating slag at boiler bottom, big slag can not directly be dropped on the conveyer belt, avoided the damage of conveyer belt, the work of conveyer belt outlet slag fragmentation is reduced relatively, the comprehensive life that has prolonged service life of disintegrating machine and entire equipment is long.Yet above-mentioned high-temperature ash dry type conveying device is found also to have the following disadvantages in actual motion: the coal-burning boiler high-temperature ash dry type conveying device of said structure, some can fall the zone outside the extrusion head extruding scope of described hydraulic pressure slag crusher when the lime-ash in the slag well outlet fell, if the lime-ash accumulation too much will cause the described extrusion head can not normal operation.
The utility model content
For this reason, technical problem to be solved in the utility model is to provide a kind of coal burning boiler hearth deslagging device with the material guide device outside the extruding scope of extrusion head of avoiding lime-ash to drop on slag crusher.
Another technical problem to be solved in the utility model is to provide a kind of coal burning boiler hearth deslagging device that blowing out can be carried out maintain and replace to barrier that need not.
Another technical problem to be solved in the utility model is to provide a kind of easy extrusion head of big clinker being bitten also broken slag crusher.
For solving the problems of the technologies described above, coal burning boiler hearth deslagging device described in the utility model, comprise at the slag well outlet of coal-burning boiler and the casing between the slag conveyer, be supported on the barrier of forming by many heating resisting metal bars in the described casing and be positioned at the slag crusher that is used for pushing slag above the described barrier, be provided with between the outlet of the slag well of described coal-burning boiler and described slag crusher and be used to limit the material guide device that slag drops to the disintegrating slag zone of described slag crusher, the upper end of described material guide device exports with described slag well and links to each other.
Described material guide device is the guide coaming plate that is provided with along described one week of slag well outlet.
Described slag crusher comprises the drive unit that at least one pair of relative motion is used to push the body of slag and drives the body motion, the front end of each described body is provided with extrusion head, the rear end of each described body is provided with the baffle plate that projects upwards, and the position of described guide coaming plate is than the extrusion head of the more close described body in position of described baffle plate.
The top that is lower than described baffle plate bottom of described guide coaming plate.
Described barrier removably is fixed on the described casing.
The two ends of described heating resisting metal bar are supported on the described casing by the supporting base that is fixed on the described casing, at least one end of described heating resisting metal bar removably is fixed on the described casing by stopping means, and described stopping means is used to limit the axially-movable of described heating resisting metal bar.
Described stopping means comprises the opening that is suitable for described heating resisting metal bar extraction on the sidewall of being located at described casing and is located at the cover plate that described casing outside is used for fixing described heating resisting metal bar, described cover plate is provided with the hole, the hole on the described cover plate is passed in the end of described heating resisting metal bar, and be provided with axial vertical aperture with described heating resisting metal bar in the part of exposing casing, be installed with pin in the described aperture, described pin matches with described cover plate, limits described heating resisting metal bar in axial motion.
Described stopping means comprises the opening that is suitable for described heating resisting metal bar extraction on the sidewall of being located at described casing and is located at the cover plate that described casing outside is used for fixing described heating resisting metal bar, described cover plate is provided with the hole, the inside of an end that is provided with stopping means of described heating resisting metal bar is provided with screw, and described screw matches with the screw in hole on passing described cover plate and is used for fixing described heating resisting metal bar.
Described body comprises a plurality of extrusion heads, is provided with the extruding tooth of a plurality of tapers on the operative end surface of described extrusion head at its vertical direction.
The cone angle of described extruding tooth is 60-90 °.
Technique scheme of the present utility model has the following advantages compared to existing technology: be provided with between the outlet of the slag well of (1) described coal-burning boiler and the described slag crusher and be used to limit the interior material guide device of baffle plate that slag drops to described slag crusher, prevent that slag from dropping on the zone outside the range of movement of described extrusion head; (2) every described heating resisting metal bar detachably is fixed on the described casing, and limits it in axial motion by stopping means.Break or be subjected to other damages and when needing repairing, can only extract the heating resisting metal bar that is damaged out, and need not change whole barrier as certain root heating resisting metal bar, therefore do not need to stop the operation of boiler, thereby improve the efficient of producing and save production cost; (3) the tapered squeezing tooth is set on extrusion head, especially the vertical direction in the operative end surface of described extrusion head is provided with a plurality of tapered squeezing teeth, such setting is compared with tack tooth before, the pressure that the tapered squeezing tooth acts on the slag is bigger, can bite bulk slag in irregular shape and easier of its fragmentation more firmly.The cone angle of described tapered squeezing tooth is 60-90 °, not only can prevent tapered squeezing tooth insufficient strength, the frangibility that too small cone angle causes but also can avoid reducing to be unfavorable for to bite the bulk slag and with the shortcoming of its pulverizing because of the excessive pressure of cone angle.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, according to specific embodiment of the utility model also in conjunction with the accompanying drawings, the utility model is described in further detail, wherein below
Fig. 1 is the front view of coal burning boiler hearth deslagging device described in the utility model;
Fig. 2 is the side view of coal burning boiler hearth deslagging device described in the utility model;
Fig. 3 is the structural representation of the stopping means of coal burning boiler hearth deslagging device described in the utility model;
Fig. 4 is the vertical view of coal burning boiler hearth deslagging device described in the utility model;
Fig. 5 is the side view of the slag crusher of coal burning boiler hearth deslagging device described in the utility model;
Fig. 6 is the cutaway view along the A-A direction of the slag crusher of coal burning boiler hearth deslagging device described in the utility model;
Fig. 7 is the vertical view of the single slag crusher of coal burning boiler hearth deslagging device described in the utility model;
Fig. 8 is two slag crusher syntagmatic figure of coal burning boiler hearth deslagging device described in the utility model.
Reference numeral is expressed as among the figure: 1-slag conveyer, 2-barrier, 3-slag crusher, the outlet of 4-slag well, 5-supporting base, 6-heating resisting metal bar, the 7-extrusion head, 8-pushes tooth, 9-casing, 10-cover plate, the 11-screw, 12-slag well, the 13-lifting bolt, 14-guide coaming plate, 15-stores up ash bucket, the 16-peep hole, 17-observation window, 18-camera window, 19-camera, 20-casing column, 21-slag well column, 22-hydraulic cylinder, 23-push rod, 24-expansion joint, the 25-body, 26-protective plate, 27-baffle plate, 28-chute.
The specific embodiment
Coal burning boiler hearth deslagging device of the present invention is arranged on the below of slag well 12, and described slag well 12 is connected with the lower end of burner hearth, is used for slag is derived burner hearth.Described slag-draining device comprises the casing 9 between the outlet 4 of the slag well of described slag well 12 and slag conveyer 1, be supported in the described casing 9 the barrier of forming by many heating resisting metal bars 62 be positioned at the slag crusher 3 that being used on the described barrier 2 pushed slag.Described grid 2 is used for stopping that the bulk slag falls on the slag conveyer 1, described slag crusher 3 is located on the described barrier 2, can on described barrier 2, move, be used for bulk slag extruding the becoming fritter disintegrating slag that can fall from the slit of described barrier 2, ashes and slag that described slag conveyer 1 is used for discharging from the slag well outlet 4 of boiler are transported to disintegrating slag, screening plant.
Between outlet 4 of the slag well of described coal-burning boiler and described slag crusher 3, be provided with the material guide device that is used to limit in the described baffle plate that slag drops to described slag crusher 3, in the present embodiment, described material guide device is the guide coaming plate 14 along described slag well outlet one week of welding, described guide coaming plate 14 restriction slags drop to the disintegrating slag zone of described slag crusher, preventing that slag from falling the rear portion of slag crusher can't be broken, and the disintegrating slag zone is meant that extrusion head can be with the zone of slag fragmentation.
Described casing 9 is supported on the top of described slag conveyer 1 by casing column 20, be used to support described slag crusher 3 and barrier 2, the top of described casing 9 is provided with expansion joint 24, can absorb the downward thermal expansion of boiler slag well, connect by screw bolt and nut between the sidewall of described casing 9, under the situation of described slag crusher 3 and barrier 2 damages, can unload bolt, the sidewall of opening casing 9 keeps in repair, thereby makes maintenance convenient.Be respectively arranged with camera window 18 and the observation window 17 that is used to observe the big slag muck cumuliformis attitude on the described barrier in the appropriate location of described casing 9, described camera window 18 outer cameras 19 can shoot with video-corder the accumulation situation of bulk slag on the barrier 2 get off, and send image to display, the operations staff can judge the position at bulk slag place and operate corresponding extrusion head 7 actions, squeeze the bulk slag broken by observation display.The attendant can directly see situation on the barrier 2 by observation window 17, and can open the foreign material such as ironware that 17 pairs of described observation windows drop on the described barrier 2 and handle.
Described barrier 2 is made of many heating resisting metal bars 6, described heating resisting metal bar 6 is heat resisting pipe in the present embodiment, and two ends of every described heat resisting pipe are supported on the described casing 9 and by stopping means by H shape supporting base 5 and limit it in described heat resisting pipe axially-movable.Described stopping means comprises the screw 11 that is welded on described heat resisting pipe terminus inner, be located at the opening that described heat resisting pipe is extracted out that is suitable on the sidewall of described casing 9, be located at described casing 9 outsides and be used to the cover plate 10 that seals described opening and be used for fixing described heat resisting pipe, described cover plate 10 is provided with the hole that allows lifting bolt 13 to pass through, and the described screw 11 of Kong Houyu that an end of described lifting bolt 13 passes on the described cover plate 10 cooperates.Certainly, the shape of described supporting base 5 can be done variation according to actual conditions, as being the circular supporting base on the casing 9 as described in being fixed on, supports described heat resisting pipe as long as can play.Drop on the described barrier 2 under the situation that a certain of described barrier 2 or a few described heat resisting pipes are smashed when the slag that bulk occurs, can catch and rotate suspension ring 13, make the engagement of described lifting bolt 13 disengagings and described screw 11, impaired described heat resisting pipe is extracted out, and it is repaired or replaced.Owing to only change one or a few the described heat resisting pipe in the described barrier 2, can the deslagging of boiler not impacted, therefore need not blowing out, compare with barrier 2 is fixed on the described casing or with its scheme that is designed to an integral body, the utility model can improve the efficient of producing and keeping in repair and save the man power and material.Gap between the described barrier 2 can allow granular grey shape thing and less slag directly to drop on the described slag conveyer 1 to transport; slag interception that simultaneously will be bigger is on described barrier 2; can protect slag conveyer 1 to be without prejudice on the one hand; be presented as that preventing that the bulk slag from directly pounding to drop on the described slag conveyer 1 smashes described slag conveyer 1; prolonged the cool time of bulk slag simultaneously, temperature had been reduced to the degree that can not damage slag conveyer 1 when it was fallen.
Described barrier 2 is provided with slag crusher 3; described slag crusher 3 comprises body 25 and is used to drive the power set of described body axially-movable; be provided with the push rod 23 that is used for transferring power between described power set and described body 25 between described body 25 and the described power set; wherein; described body 25 is provided with a plurality of extrusion heads 7; the top of described body 25 is provided with the protective plate 26 that is used to protect described extrusion head; and be provided with the baffle plate 27 that projects upwards around the described body 25; the position of described guide coaming plate 14 is than the more close described extrusion head in the position of described baffle plate 28, the top that is lower than described baffle plate bottom of described guide coaming plate 14.The bottom of described body 25 has be suitable for chute 28 that described body 25 is moved on the described heat resisting pipe of described barrier 2.Be located at extrusion head 7 move toward one another on the same track.Described extrusion head 7 is provided with the tapered squeezing tooth 8 of three rectangular pyramid shapes at vertical direction, and the extruding tooth 8 of the extrusion head 7 on the same track can be meshing with each other, and bites the bulk slag and squeeze it broken under the driving of power.In the present embodiment, on the vertical direction of each extrusion head 7, be provided with the tapered squeezing tooth 8 of three 60-90 degree, under the identical situation of driving force, compare with the tack tooth, the pressure that tapered squeezing tooth 8 acts on the slag is bigger, can bite bulk slag in irregular shape and easier of its fragmentation more firmly.In the present embodiment, described drive unit is a hydraulic cylinder 22, supports by slag well column 21.Each described body 25 is driven by the hydraulic cylinder 22 of two parallel connections, is equipped with the push rod 23 of transferring power between each described hydraulic cylinder 22 and the body 25.Described hydraulic cylinder 22 is provided with the stroke that travel switch can be controlled described extrusion head 7.Another effect that described extrusion head 7 brought is set is, when slag conveyer 1 breaks down, can close extrusion head 7, and lime-ash temporarily is stored in the slag well, prevents that too much lime-ash from causing damage to slag conveyer 1.In addition, being used in the utility model limits material guide devices in the described baffle plate 27 that slag drops to slag crusher 3 and can also be designed to other and be convenient to the structure that slag falls, and as being designed to the cross section is
The deflector chute of shape, and be set a week along described baffle plate 27.
The zone that does not have to cover at 2 times described protective plates 26 of described barrier is provided with ash exhauster, described in the present embodiment ash exhauster is to be provided with the storage ash bucket 15 of putting the ash door, but being accumulated to a certain degree can open, the flying dust in the described storage ash bucket 15 storage compartment flying dusts, described storage ash bucket puts grey goalkeeper's part flying dust discharge.Described storage ash bucket 15 can prevent that flying dust is deposited between described casing 9 and the described extrusion head 7, and normal operation impacts to equipment.Also be provided with peep hole 16 on the described casing 9, described peep hole 16 is positioned at the below of described extrusion head 7, and operating personnel can be by the dust stratification situation of the described storage ash bucket 15 of described peep hole 16 observations, when dust stratification can be opened the dust stratification of putting in the ash door removing storage ash bucket 15 more for a long time.
In described second embodiment, the terminus inner of described heat resisting pipe has the screw thread that matches with described lifting bolt.Described extruding tooth be shaped as taper shape.Described ash handling equipment is one to be located at the ash-draining gate on the casing, when the dust accumulation between casing and the grid to a certain degree the time, can open ash-draining gate and emit the part flying dust.Other are identical with first embodiment.
In the 3rd embodiment, described heating resisting metal bar is a solid shafting.The two ends of described heating resisting metal bar are supported on the described casing by two described supporting bases respectively, be fixed on the described casing by stopping means respectively then, be that the hole on the described cover plate is passed at the two ends of described heating resisting metal bar respectively, and be provided with axial vertical aperture with described heating resisting metal bar in the part that described heating resisting metal bar exposes described casing, be installed with pin in the described aperture, described pin matches with described cover plate, limits described heating resisting metal bar in axial motion.Other are identical with first embodiment.
In the 4th embodiment, an end of described heating resisting metal bar is provided with stopping means, and the hole on the described cover plate is passed in an end of described heating resisting metal bar, and is provided with axial vertical aperture with described heating resisting metal bar in the part of exposing described casing.Described casing is provided with two axis and the perpendicular becket of described heating resisting metal bar, described pin passes aperture and another the described becket on a described becket, the described heating resisting metal bar successively, described pin matches with described cover plate, limit the axially-movable of described heating resisting metal bar, the other end of described heating resisting metal bar then is not provided with the cover closure in hole in described casing.Other are identical with first embodiment.
Obviously, the foregoing description only is for example clearly is described, and is not the qualification to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all embodiments.And conspicuous variation of being extended out thus or change still are among the protection domain of the utility model creation.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920222211 CN201513906U (en) | 2009-08-31 | 2009-08-31 | Bottom slagging device for coal-fired boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920222211 CN201513906U (en) | 2009-08-31 | 2009-08-31 | Bottom slagging device for coal-fired boiler |
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| Publication Number | Publication Date |
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| CN201513906U true CN201513906U (en) | 2010-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920222211 Expired - Lifetime CN201513906U (en) | 2009-08-31 | 2009-08-31 | Bottom slagging device for coal-fired boiler |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011022929A1 (en) * | 2009-08-31 | 2011-03-03 | 北京国电富通科技发展有限责任公司 | Device for discharging slag from bottom of coal-fired boiler |
| CN102829466A (en) * | 2012-07-25 | 2012-12-19 | 北京国电富通科技发展有限责任公司 | Slag combustion apparatus of biomass boiler |
| CN106766887A (en) * | 2016-12-08 | 2017-05-31 | 无锡市东赫金属制品有限公司 | One kind prevents the convenient steel band melting boiler that blocks and take |
| CN118080133A (en) * | 2023-11-17 | 2024-05-28 | 大唐巩义发电有限责任公司 | Abnormal observation and processing window for slag crusher |
-
2009
- 2009-08-31 CN CN 200920222211 patent/CN201513906U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011022929A1 (en) * | 2009-08-31 | 2011-03-03 | 北京国电富通科技发展有限责任公司 | Device for discharging slag from bottom of coal-fired boiler |
| CN102829466A (en) * | 2012-07-25 | 2012-12-19 | 北京国电富通科技发展有限责任公司 | Slag combustion apparatus of biomass boiler |
| CN102829466B (en) * | 2012-07-25 | 2015-04-01 | 北京国电富通科技发展有限责任公司 | Slag combustion apparatus of biomass boiler |
| CN106766887A (en) * | 2016-12-08 | 2017-05-31 | 无锡市东赫金属制品有限公司 | One kind prevents the convenient steel band melting boiler that blocks and take |
| CN118080133A (en) * | 2023-11-17 | 2024-05-28 | 大唐巩义发电有限责任公司 | Abnormal observation and processing window for slag crusher |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100623 Effective date of abandoning: 20090831 |