CN205383620U - Circulation deslagging system - Google Patents
Circulation deslagging system Download PDFInfo
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- CN205383620U CN205383620U CN201620204071.8U CN201620204071U CN205383620U CN 205383620 U CN205383620 U CN 205383620U CN 201620204071 U CN201620204071 U CN 201620204071U CN 205383620 U CN205383620 U CN 205383620U
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Abstract
The utility model discloses a circulation deslagging system, including dragveyer (1), circulation deslagging system still include with dragveyer (1) is connected is used for receiving overflow pond (4) of the overflow water of dragveyer (1) and with being used for that overflow pond (4) are connected is right clarified water after precipitating in overflow pond (4) cools off and will cool off the back clarified water sends into cooling device (5) in dragveyer (1), overflow pond (4) and still be provided with between dragveyer (1) be used for with the sewage discharge that precipitates in overflow pond (4) extremely dredge pump (7) of dragveyer (1). The utility model provides a circulation deslagging system can realize the external zero release of pulp water, and simple structure, and it is convenient to maintain, operation safe and reliable.
Description
Technical field
This utility model relates to the deslagging technique of boiler, in particular it relates to a kind of circulation slag removing system.
Background technology
In thermal power plant, the slag produced after boiler combustion is dropped down onto from burner hearth by slag down-hole in the cell body of water-filled dragveyer, and slag storehouse is pulled and sent into the scraper plate then passing through dragveyer out, wherein, for keeping the cooling to slag, the pulp water in dragveyer is constantly in overflow situation.
Along with the enhancing of consciousness of saving water, for reducing water resource waste, for adopting the power plant of water-cooled slag removing system, it is desirable to Slag-water system must adopt closed cycle, external zero-emission.
Current domestic water cold type slag removing system enclosed pulp water blood circulation mainly has three kinds of modes: one is that pulp water precipitates through high-efficiency concentrator, cushions sump natural cooling or mechanical force cooling column cooling Posterior circle use；Two is pulp water reuse after sedimentation tank, self-cleaning filter or dosing flocculating and purifying device, heat exchanger cooling；Three is that dragveyer adopts self-balancing moisturizing, maintains the Slag-water system of water level.
But, the first processing mode, system still outwards discharges certain blowdown flow rate, causing system water supplement amount to increase, pulp water reclamation rate reduces, and the sewage of discharge needs to carry out secondary sewage treatment, if agent-feeding treatment not in time, being easily caused Slag-water system fouling, run power consumption higher, initial investment expense is bigger；The second processing mode, adopts the system of dosing flocculating and purifying device, and initial investment is relatively big, and system is complex, and maintenance workload is bigger；The third processing mode is relatively easy, dragveyer keeps the normal not overflow of water level, during overflow, pulp water enters overflow pond once in a while, it is interrupted and drains into unit rhone or wastewater treatment center, initial cost is economized and operation power consumption is less, but power plant operations staff worry boiler fall big cinder amount strengthen or summer environment temperature higher time dragveyer water temperature can sharply raise, it is possible to cause dragveyer safe operation, not yet extensively popularize at present.
Utility model content
The purpose of this utility model is to provide a kind of circulation slag removing system, and this circulation slag removing system is capable of the external zero-emission of pulp water and simple in construction, easy to maintenance, safe and reliable to operation.
To achieve these goals, this utility model provides one circulation slag removing system, including dragveyer, described circulation slag removing system also include the overflow pond of the overflow water for receiving described dragveyer that is connected with described dragveyer and be connected with described overflow pond for the primary water after precipitation in described overflow pond being cooled down and the described primary water after cooling being sent to the chiller in described dragveyer；
It is additionally provided with between described overflow pond and described dragveyer in order to by the sewage discharge of precipitation in described overflow pond to the dredge pump of described dragveyer.
Preferably, described overflow pond includes settling zone and clear water zone, the water of described settling zone and described clear water zone settling zone separated from one another and described can overflow to described clear water zone, described settling zone is provided with the water inlet for being connected and the sewage draining exit for being connected with described dredge pump with described dragveyer, and described clear water zone is provided with the outlet for being connected with described chiller.
Preferably, being separated by dividing plate between described settling zone and described clear water zone, the top of described dividing plate is provided with to make the water of described settling zone pass through and arrive multiple grooves of described clear water zone, and multiple described grooves form laciniation.
Preferably, described settling zone is provided with the gear scum silica frost parts for bubbling through the water column with backstop scum silica frost.
Preferably, described gear scum silica frost parts are the bending plate bent back and forth.
Preferably, it is all adjacent with described clear water zone that described settling zone includes the commonly-used area and the spare area that are spaced apart, described commonly-used area and described spare area so that the water of described commonly-used area and described spare area all can overflow extremely described clear water zone.
Preferably, described circulation slag removing system also includes the slag well being positioned at above described dragveyer and the water sealed tank being positioned at the aboveground side of described slag, the water in described water sealed tank can overflow in described dragveyer, described water sealed tank is connected to water replanishing device.
Preferably, described chiller is also to the described primary water after the conveying cooling of described water sealed tank, and the bottom of described water sealed tank is provided with sewage draining exit.
Preferably, being provided with liquidometer at least one in described water sealed tank, described dragveyer and described overflow pond, described circulation slag removing system includes being connected the control device controlling described water replanishing device with the liquid level information according to described liquidometer with described water replanishing device and described liquidometer.
Preferably, described chiller includes the cooling water pipe for recirculated cooling water, and described cooling water pipe is connected to cooling water circulating pump；Being also formed with the pulp water passage with entrance and exit for the pulp water that circulates in described chiller, the entrance of described pulp water passage is connected to described overflow pond, and the outlet of described pulp water passage is connected to described dragveyer；
Described pulp water passage is also associated with the flushing pipe for described pulp water passage is rinsed.
The circulation slag removing system that this utility model provides, by arranging overflow pond, is sent into dragveyer after the cooled device cooling of primary water after precipitating, cool down with the slag to dragveyer in overflow pond；And the sewage of precipitation is also fed into dragveyer by dredge pump in overflow pond, slag storehouse is pulled and sent into the scraper plate then passing through dragveyer out.That is the pulp water that dragveyer overflow goes out is divided into primary water and sewage; primary water forms recirculated cooling water; and the bits in sewage are pulled out after returning to dragveyer and are entered into slag storehouse; thus achieve the external zero-emission of pulp water; it is beneficial to protection environment; and this slag removing system simple in construction, easy to maintenance, safe and reliable to operation.
Other features and advantages of the utility model will be described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to offer and is further appreciated by of the present utility model, and constitutes a part for description, is used for explaining this utility model, but is not intended that restriction of the present utility model together with detailed description below.In the accompanying drawings:
The structural representation of the circulation slag removing system that Fig. 1 provides for this utility model；
Fig. 2 is the plan structure schematic diagram in overflow pond；
Fig. 3 is the cut-away illustration of A-A in Fig. 2.
Description of reference numerals
1-dragveyer；2-slag well；
3-water sealed tank；4-overflow pond；
41-settling zone；411-commonly-used area；
412-spare area；42-clear water zone；
43-dividing plate；431-groove；
44-the first water inlet；45-the second water inlet；
46-the first outlet；47-the second outlet；
48-keeps off scum silica frost parts；49-sewage draining exit；
50-overfall；5-chiller；
6-pulp water circulating pump；7-dredge pump；
8-cooling water circulating pump；9-rinses pipe；
10-water pipe；11-the first pipeline；
12-the second pipeline；13-the 3rd pipeline；
14-the 4th pipeline；15-the 5th pipeline；
16-overflow passage.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in detail.It should be appreciated that detailed description of the invention described herein is merely to illustrate and explains this utility model, it is not limited to this utility model.
The utility model discloses a kind of circulation slag removing system, this circulation slag removing system includes dragveyer 1, and this circulation slag removing system also includes the overflow pond 4 of the overflow water for receiving dragveyer 1 being connected with dragveyer 1 and the chiller 5 for the primary water after precipitation in overflow pond 4 being cooled down and be sent in dragveyer 1 by the described primary water after cooling being connected with overflow pond 4；It is additionally provided with between overflow pond 4 and dragveyer 1 in order to by the sewage discharge of precipitation in overflow pond 4 to the dredge pump 7 of described dragveyer 1.
The circulation slag removing system that this utility model provides is by arranging overflow pond 4, and in overflow pond 4, the primary water after precipitation can send into dragveyer 1 after the cooling of cooled device 5, cools down with the slag to dragveyer 1；And the sewage of precipitation is also fed into dragveyer 1 by dredge pump 7 in overflow pond 4, slag storehouse is pulled and sent into the scraper plate then passing through dragveyer 1 out.That is the pulp water that dragveyer 1 overflow goes out is divided into primary water and sewage; primary water forms recirculated cooling water; and the bits in sewage are pulled out after returning to dragveyer 1 and are entered into slag storehouse; thus achieve the external zero-emission of pulp water; it is beneficial to protection environment; and this slag removing system simple in construction, easy to maintenance, safe and reliable to operation.
Below by detailed description of the invention, this utility model is specifically described.
In present embodiment, preferably, as depicted in figs. 1 and 2, overflow pond 4 includes settling zone 41 and clear water zone 42, settling zone 41 and clear water zone 42 is separated from one another and the water of settling zone 41 can overflow to clear water zone 42, enter into, from settling zone 41 overflow, the primary water that the water clear water zone 42 is mainly in settling zone 41 after precipitation.
Wherein, settling zone 41 is provided with the water inlet for being connected with dragveyer 1, i.e. the first water inlet 44 being arranged on commonly-used area 411 in Fig. 2 and the second water inlet 45 being arranged on spare area 412, the water that dragveyer 1 overflows can flow out along the first pipeline 11, then it is divided into two-way to enter into commonly-used area 411 from the first water inlet 44 respectively, enters into spare area 412 from the second water inlet 45.Settling zone 41 is divided into the commonly-used area 411 being spaced apart and spare area 412 by present embodiment, it is safeguard this overflow pond 4 for convenience, under normal circumstances, second water inlet 45 is closed, the pulp water overflow of dragveyer 1 is to commonly-used area 411, and when commonly-used area 411 needs cleaning to safeguard, is closed by the first water inlet 44, second water inlet 45 is opened so that the pulp water overflow of dragveyer 1 is to spare area 412.Commonly-used area 411 and spare area 412 are all adjacent with clear water zone 42 so that the water of commonly-used area 411 and spare area 412 all can overflow to clear water zone 42.It addition, for reducing the impurity entering into settling zone 41, filter net device can be arranged at the overfall of dragveyer 1, scum silica frost is kept off in dragveyer 1.
Settling zone 41 is additionally provided with the sewage draining exit 49 for being connected with dredge pump 7, and settling zone 41 oettIed sewage can regularly be discharged to dragveyer 1 by dredge pump 7 along the second pipeline 12 by sewage draining exit 49.
Clear water zone 42 is provided with the outlet for being connected with chiller 5, the first outlet 46 and the second outlet 47 that clear water zone 42 is arranged in Fig. 2, first outlet 46 and the second outlet 47 are respectively connected to pulp water circulating pump 6 (in conjunction with Fig. 1), cool down the primary water of clear water zone 42 being delivered to chiller 5 respectively through pulp water circulating pump 6, pulp water circulating pump 6 can be adjusted (regulating during debugging, no longer regulate in operation) according to how many converters of pulp water amount.
Clear water zone 42 is additionally provided with overfall 50 (Fig. 2), and clear water zone 42 is when overflow, and overflow water discharges to trench from this overfall 50 along overflow passage 16 (Fig. 1).
Preferably, as shown in Figures 2 and 3, separated by dividing plate 43 between settling zone 41 and clear water zone 42, the top of dividing plate 43 is provided with to make the water of settling zone 41 pass through and arrive multiple grooves 431 of clear water zone 42, multiple grooves 431 form laciniation, the water of settling zone 41 can slowly flow into clear water zone 41 by the groove of this formation laciniation, it is possible to effectively prevents the dirt of settling zone 41 from pouring in clear water zone 42.
Owing to settling zone 41 receives the pulp water from dragveyer 1 overflow, in pulp water, suspension content is higher, for stoping this float to enter into clear water zone 42, is provided with the gear scum silica frost parts 48 for bubbling through the water column with backstop scum silica frost in settling zone 41.Gear scum silica frost parts 48 can adopt various suitable form, it is preferable that for taking into account backstop effect and simplifying structure, these gear scum silica frost parts 48 are the bending plate bent back and forth.
As shown in Figure 1, this circulation slag removing system also includes the slag well 2 being positioned at above dragveyer 1 and the water sealed tank 3 being positioned at above slag well 2, water in water sealed tank 3 can overflow to dragveyer 1, water sealed tank 3 is connected to water replanishing device, when water in water sealed tank 3 is lower than preset water level, the water pipe 10 that can pass through in water replanishing device carries out moisturizing.
For making full use of pulp water, primary water after also chiller 5 also can being carried from cooling to described water sealed tank 3, specifically chiller 5 can be connected with the annular filling pipe of water sealed tank 3, by annular filling pipe, water sealed tank 3 is carried out moisturizing, the water gone out from water sealed tank 3 overflow flows into dragveyer 1 cooled slag then through the sidewall of slag well 2, pulp water recycles, and forms closed cycle.Pulp water after cooling down due to chiller 5 has still suffered from impurity, the pulp water of this cooling enters into water sealed tank 3, water sealed tank 3 can contain dirt, for convenience of the dirt in cleaning water sealed tank 3, prevent pulp water from depositing in water sealed tank 3, affect boiler expansion, multiple sewage draining exit can be provided with in the bottom of water sealed tank 3, sewage can be carried out cleaning by this sewage draining exit and discharge to dragveyer 1.
Being provided with liquidometer at least one in water sealed tank 3, dragveyer 1 and overflow pond 4, this circulation slag removing system includes being connected the control device controlling water replanishing device with the liquid level information according to described liquidometer with water replanishing device and described liquidometer.When liquidometer in water sealed tank 3, dragveyer 1 or overflow pond 4 detects water level lower than threshold value, control device can control water replanishing device and water sealed tank 3 is carried out moisturizing, has taken away the water yield of part with the evaporation of supplementary radiation of burner hearth and high temperature sludge and bottom ash.When in dragveyer 1, water level decreasing (without overflow) is to low liquid level, or during the water level decreasing in overflow pond 4 extremely low liquid level, motorized adjustment water compensating valve on the water pipe being connected with water replanishing device is opened, start moisturizing, make in water sealed tank 3 water overflow to dragveyer 1, and then overflow is to overflow pond 4, when mending the clear water zone 42 high liquid level to overflow pond 4, the motorized adjustment water compensating valve on water pipe is closed.It addition, also by the chain rinse water valve regulated in dragveyer 1, supplement the evaporation of radiation of burner hearth and high temperature sludge by flushing water and the water yield that bottom ash is taken away.
Chiller 5 in present embodiment is tubular cooler, tubular cooler includes the cooling water pipe for recirculated cooling water, as shown in Figure 1, described cooling water pipe is connected to cooling water circulating pump 8, cooling water in 5th pipeline 15 is sent into the cooling water pipe of chiller 5 by cooling water circulating pump 8, cooling water in cooling water pipe is taken away heat tailing edge the 4th pipeline 14 of pulp water and is returned to Raw water treatment system, recycles.
Chiller 5 is formed the pulp water passage with entrance and exit for the pulp water that circulates, the entrance of described pulp water passage is connected to overflow pond 4, the outlet of pulp water passage is connected to described dragveyer 1, and the pulp water in overflow pond 4 enters into and returns to dragveyer 1 from outlet along the 3rd pipeline 13 after the pulp water passage of chiller 5 cools down.Additionally, pipeline between the entrance of overflow pond 4 and pulp water passage can add fixed filter, pulp water is made after being filtered further, to enter into pulp water passage, it is ensured that the properly functioning and heat transfer effect of chiller 5.
Additionally, pulp water passage is also associated with the flushing pipe 9 for described pulp water passage is rinsed, when system is safeguarded, cooling water can be introduced by flushing pipe 9 and pulp water passage is carried out.
The circulation slag removing system provided in present embodiment, each equipment is arranged in boiler room, and floor space is little, and system is simple, and equipment is few, and operation maintenance amount is few.
Preferred implementation of the present utility model is described in detail above in association with accompanying drawing; but; this utility model is not limited to the detail in above-mentioned embodiment; in technology concept of the present utility model; the technical solution of the utility model can being carried out multiple simple variant, these simple variant belong to protection domain of the present utility model.
It is further to note that, each concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, it is possible to be combined by any suitable mode, in order to avoid unnecessary repetition, various possible compound modes are no longer illustrated by this utility model separately.
Additionally, can also carry out combination in any between various different embodiment of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (10)
1. a circulation slag removing system, including dragveyer (1), it is characterized in that, described circulation slag removing system also includes the overflow pond (4) of the overflow water for receiving described dragveyer (1) being connected with described dragveyer (1) and the chiller (5) for the primary water after precipitation in described overflow pond (4) being cooled down and be sent in described dragveyer (1) by the described primary water after cooling being connected with described overflow pond (4)；
It is additionally provided with between described overflow pond (4) and described dragveyer (1) in order to by the sewage discharge of precipitation in described overflow pond (4) to the dredge pump (7) of described dragveyer (1).
2. circulation slag removing system according to claim 1, it is characterized in that, described overflow pond (4) includes settling zone (41) and clear water zone (42), the water of described settling zone (41) and described clear water zone (42) settling zone (41) separated from one another and described can overflow to described clear water zone (42), described settling zone (41) is provided with the water inlet for being connected and the sewage draining exit (49) for being connected with described dredge pump (7) with described dragveyer (1), described clear water zone (42) is provided with the outlet for being connected with described chiller (5).
3. circulation slag removing system according to claim 2, it is characterized in that, separated by dividing plate (43) between described settling zone (41) and described clear water zone (42), the top of described dividing plate (43) is provided with to make the water of described settling zone (41) pass through and arrive multiple grooves (431) of described clear water zone (42), and multiple described grooves (431) form laciniation.
4. circulation slag removing system according to claim 2, it is characterised in that described settling zone (41) are provided with gear scum silica frost parts (48) for bubbling through the water column with backstop scum silica frost.
5. circulation slag removing system according to claim 4, it is characterised in that described gear scum silica frost parts (48) is the bending plate bent back and forth.
6. circulation slag removing system according to claim 2, it is characterized in that, described settling zone (41) includes the commonly-used area (411) and spare area (412) that are spaced apart, described commonly-used area (411) and described spare area (412) are all adjacent with described clear water zone (42) so that the water of described commonly-used area (411) and described spare area (412) all can overflow extremely described clear water zone (42).
7. the circulation slag removing system according to any one in claim 1-6, it is characterized in that, described circulation slag removing system also includes being positioned at the slag well (2) of described dragveyer (1) top and being positioned at the water sealed tank (3) of described slag well (2) top, water in described water sealed tank (3) can overflow in described dragveyer (1), described water sealed tank (3) is connected to water replanishing device.
8. circulation slag removing system according to claim 7, it is characterised in that described chiller (5) is also to the described primary water after described water sealed tank (3) conveying cooling, and the bottom of described water sealed tank (3) is provided with sewage draining exit.
9. circulation slag removing system according to claim 7, it is characterized in that, being provided with liquidometer at least one in described water sealed tank (3), described dragveyer (1) and described overflow pond (4), described circulation slag removing system includes being connected the control device controlling described water replanishing device with the liquid level information according to described liquidometer with described water replanishing device and described liquidometer.
10. the circulation slag removing system according to any one in claim 1-6, it is characterised in that described chiller (5) includes the cooling water pipe for recirculated cooling water, described cooling water pipe is connected to cooling water circulating pump (8)；Described chiller (5) is also formed with the pulp water passage with entrance and exit for the pulp water that circulates, the entrance of described pulp water passage is connected to described overflow pond (4), and the outlet of described pulp water passage is connected to described dragveyer (1)；
Described pulp water passage is also associated with the flushing pipe (9) for described pulp water passage is rinsed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620204071.8U CN205383620U (en) | 2016-03-16 | 2016-03-16 | Circulation deslagging system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620204071.8U CN205383620U (en) | 2016-03-16 | 2016-03-16 | Circulation deslagging system |
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| CN205383620U true CN205383620U (en) | 2016-07-13 |
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| CN201620204071.8U Active CN205383620U (en) | 2016-03-16 | 2016-03-16 | Circulation deslagging system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105627339A (en) * | 2016-03-16 | 2016-06-01 | 神华集团有限责任公司 | Cyclic deslagging system |
| CN107062278A (en) * | 2017-04-14 | 2017-08-18 | 中国能源建设集团广东省电力设计研究院有限公司 | Overflow Water circulation integrated system control method and overflow Water circulation integrated system |
-
2016
- 2016-03-16 CN CN201620204071.8U patent/CN205383620U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105627339A (en) * | 2016-03-16 | 2016-06-01 | 神华集团有限责任公司 | Cyclic deslagging system |
| CN105627339B (en) * | 2016-03-16 | 2019-10-15 | 神华集团有限责任公司 | Recycle slag removing system |
| CN107062278A (en) * | 2017-04-14 | 2017-08-18 | 中国能源建设集团广东省电力设计研究院有限公司 | Overflow Water circulation integrated system control method and overflow Water circulation integrated system |
| CN107062278B (en) * | 2017-04-14 | 2019-03-12 | 中国能源建设集团广东省电力设计研究院有限公司 | Dragveyer overflow water reuse integrated system and its control method |
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