CN204923021U - Novel dewatering bin bleed system - Google Patents
Novel dewatering bin bleed system Download PDFInfo
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- CN204923021U CN204923021U CN201520706532.7U CN201520706532U CN204923021U CN 204923021 U CN204923021 U CN 204923021U CN 201520706532 U CN201520706532 U CN 201520706532U CN 204923021 U CN204923021 U CN 204923021U
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Abstract
The utility model discloses a novel dewatering bin bleed system, its aim at provide one kind and shorten the dewatering bin bleed time, and extension inspection and repair time improve the utilization ratio of dewatering bin hydrologic cycle, the further use amount that reduces outer watering, and novel dewatering bin bleed system that economic benefits is good, the utility model discloses a dewatering bin, the dewatering bin includes A storehouse and B storehouse, the boiler is connected at the dewatering bin upper reaches, the A storehouse with water piping connection to concentrated pond is analysed through dehydration overflow pipe and dehydration respectively in the B storehouse, concentrated pond upper portion is connected with the clean water basin, and the lower part is connected to through the sediment stuff pump the dewatering bin, the clean water basin is connected to the boiler, the A storehouse the B storehouse with concentrated bottom of the pool partially do not communicates there is the back flush pipe, the A storehouse B storehouse bottom is connected with compressed air tank, install electron sediment position meter on the dewatering bin, between the dewatering bin inside wall and the splice that strainer filter supprot was analysed in with in the dewatering bin lacing wire is equipped with the steel band respectively.
Description
Technical field
The utility model relates to filter residue exhaust apparatus, particularly relates to a kind of dewatering storehouse bleed system.
Background technology
The lime-ash that current pulverized-coal fired boiler produces all drains into grey dam, but in recent years due to the hard requirement of environmental protection index, according to the requirement of GB18352-2005 environmental emission standard, has not allowed lime-ash to be directly disposed to grey dam.But in order to ensure the normal operation of pulverized-coal fired boiler, main employing lime-ash tapping equipment-drainage bin system (as shown in Figure 1) at present, its bleed process operation method (generally comprising A storehouse and B storehouse):
1) start when A storehouse material level reaches and takes grain out of a granary to sun it condition operation of taking grain out of a granary to sun it, now B storehouse is in stand-by state;
2) open B storehouse slag input valve, close A storehouse slag input valve, lime-ash switches to B storehouse by A storehouse;
3) close A storehouse slag input valve after 15 minutes, open analyse in A storehouse week valve and in analyse valve and carry out bleed;
4) after 96 hours bleeds, open slag-discharging valve and carry out slag dumping;
5) in slag dumping, often occur that lime-ash hardens phenomenon, at this moment just need to start hopper wall vibrator and hit the bulkhead that shakes (later stage draws approximately just to there will be every 20 minutes through field statistics and once hardens);
6), after slag dumping, residual cake valve is closed;
7) open backwash valve goalkeeper bleed pipeline, Zhou Xi, middle analysis apparatus place residual ash rinse well after, close back flush valves and each bleed valve;
8) check bleed element and support in storehouse, as without exception, A storehouse reaches stand-by state;
At the putting equipment in service initial stage, this method of operating Problems existing finds that this cover system exists the long problem of drain time in slagging and bleed, embody from following 6 aspects:
1) single drainage bin slag completely only needs 7 day time just to reach the condition of taking grain out of a granary to sun it (follow-up have specific experiment process, see 5);
2) actual drain time after 4 days, just possesses slagging condition;
3) in each storehouse, ash weight, close to 1000 tons, needs 2 day time to pull the soonest;
4) the surplus 1 day time checks and defect processing drainage bin inside, simultaneously to analysing in week, in analyse screen surface slag dirt and clear up;
5) will directly affect the normal operation of whole 6 pulverized-coal fired boilers if do not possessed the condition of taking grain out of a granary to sun it, time serious, will the normal production of blast furnace be had influence on;
6) original method of operating analyses the problem of filter screen lacing wire fracture in all occurring in each slag dumping process.The maintenance lacing wire time is generally 3 days, so just cannot ensure normally to take grain out of a granary to sun it.But in order to ensure that 6 pulverized-coal fired boilers normally run, the lime-ash produced in this period must be drained into grey dam, so not only waste a large amount of water, and thoroughly cannot break off the present situation to grey dam deslagging, can continue to pollute surrounding environment, can not meet the environmental requirement of GB18352-2005;
Therefore, can find out when total run time 7 days is constant, in order to save out reply significant deficiency or problem time, extend and check and the repair time, each branch phases-time must be shortened.Can find out that to draw the slag time to be condensed to the shortest 2 days by actual motion, so must make an effort from shortening drain time, the problem that lacing wire is often ruptured thoroughly to be solved simultaneously, guarantee drainage bin can be taken grain out of a granary to sun it smoothly, stop lime-ash and arrange phenomenon outward, for the safe and stable operation of pulverized-coal fired boiler lays the foundation.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of shortening drainage bin drain time, extends and checks and the repair time, improve the utilization rate of drainage bin water circulation, further the use amount of the outer watering of minimizing, good in economic efficiency dewatering storehouse bleed system.
For reaching above-mentioned purpose, a kind of dewatering storehouse of the utility model bleed system, comprise drainage bin, described drainage bin comprises A storehouse and B storehouse, described drainage bin upstream connects boiler, described A storehouse and described B storehouse are connected to concentration basin respectively by dehydration overflow pipe and dehydration bleed pipe, described concentration basin top is connected with clear water reserviors, bottom is connected to described drainage bin by Pulp pump, described clear water reserviors are connected to described boiler, described A storehouse, backwash tube is communicated with respectively bottom described B storehouse and described concentration basin, described A storehouse, compressed air cylinder is connected with bottom described B storehouse, described drainage bin is provided with electronics slag position meter, between described drainage bin madial wall and described drainage bin lacing wire and in analyse filter screen bracket weld be respectively equipped with steel band.
Wherein said thickness of strips is 30mm, and width is 100mm.
Wherein said drainage bin inner wall increasing is provided with 8 groups and week analyses filter screen.
Wherein said clear water reserviors connect the backwash tube in described A storehouse and described B storehouse by clarified water pump.
Ash pump is provided with between wherein said boiler and described drainage bin.
Be provided with distributing trough between wherein said drainage bin and described boiler, described distributing trough connects described A storehouse and described B storehouse respectively.
Wherein said distributing trough and be respectively equipped with slag input valve between described A storehouse and described B storehouse.
Be communicated with drainage pipeline between wherein said A storehouse and described B storehouse, described drainage pipeline and described dehydration bleed pipe are connected.
Wherein said drainage pipeline is DN100 drainage pipeline, and downward-sloping 10 degree, described drainage pipeline is provided with draining valve respectively and between described A storehouse and described B storehouse.
Be provided with concentration basin blowoff valve between wherein said concentration basin and described Pulp pump, the backwash tube of described concentration basin is provided with concentration basin backwash valve; Clarified water pump is provided with between described clear water reserviors and described boiler; The backwash tube in described A storehouse and described B storehouse is respectively equipped with backwash valve, analyses valve during described dehydration overflow pipe and described dehydration bleed pipe are respectively equipped with and week analyses valve.
The utility model difference from prior art is that the utility model achieves following technique effect:
The utility model is analysed the part transformation of filter screen lacing wire and overfall pipeline by centering and is optimized shortening drainage bin drain time, extend and check and the repair time, improve the utilization rate of drainage bin water circulation, reduce the use amount of outer watering further, good in economic efficiency dewatering storehouse bleed system.
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing drainage bin bleed system;
Fig. 2 is the structural representation of the utility model drainage bin bleed system.
Description of reference numerals: 1-distributing trough; 1a-A storehouse (drainage bin); 1b-B storehouse (drainage bin); 2-slag input valve; Valve is analysed in 3-; 4-backwash valve; 5-week analyses valve; 6-concentration basin; 7-concentration basin blowoff valve; 8-concentration basin backwash valve; 9-Pulp pump; 10a-clear water reserviors; 10b-clarified water pump; 11-ash pump; 12-compressed air cylinder; 13-electronics slag position is counted; 14-steel band; 15-draining valve; 16-week analyses filter screen.
Detailed description of the invention
Below in conjunction with embodiment, to above-mentioned being described in more detail with other technical characteristic and advantage of the utility model.
As shown in Figure 1, a kind of dewatering storehouse of the utility model bleed system, comprise drainage bin, described drainage bin comprises A storehouse 1a and B storehouse 1b, boiler is connected to distributing trough 1 by ash pump 11, distributing trough 1 connects A storehouse 1a and B storehouse 1b respectively by slag input valve 2, described A storehouse and described B storehouse are connected to concentration basin 6 respectively by dehydration overflow pipe and dehydration bleed pipe, analyse valve 3 and analyse valve 5 week during described dehydration overflow pipe and described dehydration bleed pipe are respectively equipped with, concentration basin 6 top is connected with clear water reserviors 10a, bottom is connected to distributing trough 1 by concentration basin blowoff valve 7 and Pulp pump 9, clear water reserviors 10a is connected to boiler and A storehouse 1a respectively by clarified water pump 10b, backwash tube bottom the 1b of B storehouse, backwash tube bottom A storehouse 1a and B storehouse 1b is provided with backwash valve 4, backwash tube is provided with bottom concentration basin 6, its backwash tube is provided with concentration basin backwash valve 8, compressed air cylinder 12 is connected with bottom A storehouse 1a and B storehouse 1b, A storehouse 1a and 1b top, B storehouse are separately installed with electronics slag position meter 13, between A storehouse 1a and B storehouse 1b madial wall, to change 30mm into thick for the lacing wire of original Ф 30 round steel, the steel band 14 that 100mm is wide, simultaneously lacing wire and in analyse the weld of filter screen bracket, increase steel band and be used for fixing, A storehouse 1a and B storehouse 1b inner wall increasing are provided with 8 groups and analyse filter screen 16 week.
Further, the DN100 drainage pipeline of downward-sloping 10 degree (to ensure that pipeline can smooth and easyly not block) is communicated with between A storehouse 1a and B storehouse 1b, described drainage pipeline is provided with draining valve respectively and between described A storehouse and described B storehouse, and described drainage pipeline and described dehydration bleed pipe are connected.
The lime-ash that boiler produces drains in drainage bin A storehouse 1a through ash pump 11, distributing trough 1, slag input valve 2, lime-ash in drainage bin through in analyse valve 3, analyse valve 5 week and carry out bleed, the water of separating out enters in concentration basin 6 and precipitates, dregs after precipitation are transported to distributing trough 1 through concentration basin blowoff valve 7, Pulp pump 9, rinse bottom concentration basin simultaneously prevent from hardening with concentration basin backwash 8.The qualified water that concentration basin 6 overflows enters clear water reserviors 10a and delivers to boiler through clarified water pump 10b and the backwash tube entered at the bottom of drainage bin is used as ash flushing water, again participates in water circulation.When rinsing the inner slag dirt of drainage bin with backwash valve 4 after the inner slagging of drainage bin, be convenient to use next time.Supporting have compressed air cylinder 12 to provide source of the gas for pneumatic operated valve, is furnished with electronics slag position meter 13 simultaneously and is convenient to monitor slag position.Analysing filter screen 16 week for 8 groups that newly increase is welded on drainage bin bulkhead, increases bleed ability, changes the lacing wire of original Ф 30 round steel into 30mm thick, the steel band 14 that 100mm is wide, simultaneously lacing wire and in analyse the weld of filter screen bracket, increase steel band and be used for fixing.At drainage bin bulkhead apart from pushing up 2 meters near overflow pipe place, the drainage pipeline of Xin Jie mono-road DN100 and water discharging valve 15, in order to ensure that pipeline can smooth and easyly not block, will have the inclination of upwards 10 degree during installation.By this valve open after taking grain out of a granary to sun it, by the pulp water emptying on lime-ash top, drain into top, storehouse overflow pipe, accelerate bleed progress.
Following effect can be realized by optimizing drainage bin bleed system:
1) increase and week analyse filter screen, strengthen bleed ability, due to the limitation of in-site installation position, the basis of analysing 16 groups of filter screens in original week can only newly increase 8 groups and week analyse filter screen, bleed ability improves 1.5 times;
2) chemically examine the draining at ash gate place, through chemically examining this water quality suspension content <50mg/L, reaching outer row's standard can arrange in addition;
3) in order to strengthen the backwash water yield and pressure, backwashing water being connect and draws position and route transformation, analysing in ensure that, analyse filter screen rinsing quality week, for next step can the ready work of bleed smoothly;
4) side, A storehouse pushes up 2 meters near overflow pipe place far from storehouse, and the drainage pipeline of Xin Jie mono-road DN100 and valve, in order to ensure that pipeline can smooth and easyly not block, will have the inclination of 10 degree during installation.By this valve open after taking grain out of a granary to sun it, by the pulp water emptying on lime-ash top, drain into top, storehouse overflow pipe, accelerate bleed progress;
5) change the lacing wire of existing Ф 30 round steel into 30mm thick, the steel band that 100mm is wide, simultaneously lacing wire and in analyse the weld of filter screen bracket, increase steel band and be used for fixing, improve the intensity of lacing wire with this;
Method of operating: (for A storehouse)
1) start when A storehouse material level reaches and takes grain out of a granary to sun it condition operation of taking grain out of a granary to sun it, now B storehouse is in stand-by state;
2) open B storehouse slag input valve, close A storehouse slag input valve, lime-ash switches to B storehouse by A storehouse;
3) open at once after closing A storehouse slag input valve analyse in A storehouse week valve and in analyse valve and carry out bleed;
4) open the valve of the DN100 of side, A storehouse new clothes, the pulp water on lime-ash top is drained into top, storehouse overflow pipe, draining needs 6 hours altogether;
5) sample examination is carried out to the draining of A Cang Paizhamenchu, chemically examine qualified after ash gate opened 5% carry out draining 36 hours;
6) utilize simultaneously analyse in week and in analyse the common bleed of filter screen 36 hours, open slag-discharging valve and carry out slag dumping;
7) in slag dumping process, just open hopper wall vibrator every 20 points and hit the bulkhead that shakes, prevent lime-ash from hardening and the slag dumping time lengthening that causes;
8), after slag dumping, residual cake valve is closed;
9) by clarified water pump to ash water pump hole and 2 valve closings of grey ditch, open back flush valves and respectively the residual ash at bleed pipeline, Zhou Xi, middle analysis apparatus place rinsed well, open ash gate and bled off, closedown back flush valves and each bleed valve;
10) check bleed element and support in storehouse, as without exception, A storehouse reaches stand-by state;
The original grey ditch punching of the utilization of ash and slag that boiler produces is cheated to ash pump, grey dreg slurry in pump hole delivers to drainage bin through ash pump, drainage bin through overflow, analyse in week and in the mode analysed carry out draining, moisture in lime-ash drains into concentration basin and precipitates, the overflow water of concentration basin enters clarified water pump hole, deliver to ash water pump hole by clarified water pump and be again used as ash-flushing water, form a closed-loop water system, thus reach energy-conservation object.Bottom ashe sediment Pulp pump is transported to drainage bin inside and again carries out bleed, participates in whole water cycle process.
Above-described embodiment is only be described preferred embodiment of the present utility model; not scope of the present utility model is limited; under the prerequisite not departing from the utility model design spirit; the various distortion that those of ordinary skill in the art make the technical solution of the utility model and improvement, all should fall in protection domain that the utility model claims determine.
Claims (10)
1. a dewatering storehouse bleed system, it is characterized in that: comprise drainage bin, described drainage bin comprises A storehouse and B storehouse, described drainage bin upstream connects boiler, described A storehouse and described B storehouse are connected to concentration basin respectively by dehydration overflow pipe and dehydration bleed pipe, described concentration basin top is connected with clear water reserviors, bottom is connected to described drainage bin by Pulp pump, described clear water reserviors are connected to described boiler, described A storehouse, backwash tube is communicated with respectively bottom described B storehouse and described concentration basin, described A storehouse, compressed air cylinder is connected with bottom described B storehouse, described drainage bin is provided with electronics slag position meter, between described drainage bin madial wall and described drainage bin lacing wire and in analyse filter screen bracket weld be respectively equipped with steel band.
2. dewatering storehouse according to claim 1 bleed system, it is characterized in that: described thickness of strips is 30mm, width is 100mm.
3. dewatering storehouse according to claim 1 bleed system, is characterized in that: described drainage bin inner wall increasing is provided with 8 groups and week analyses filter screen.
4. dewatering storehouse according to claim 1 bleed system, is characterized in that: described clear water reserviors connect the backwash tube in described A storehouse and described B storehouse by clarified water pump.
5. dewatering storehouse according to claim 1 bleed system, is characterized in that: be provided with ash pump between described boiler and described drainage bin.
6. dewatering storehouse according to claim 1 bleed system, is characterized in that: be provided with distributing trough between described drainage bin and described boiler, and described distributing trough connects described A storehouse and described B storehouse respectively.
7. dewatering storehouse according to claim 6 bleed system, is characterized in that: described distributing trough and be respectively equipped with slag input valve between described A storehouse and described B storehouse.
8. dewatering storehouse according to claim 1 bleed system, is characterized in that: be communicated with drainage pipeline between described A storehouse and described B storehouse, and described drainage pipeline and described dehydration bleed pipe are connected.
9. dewatering storehouse according to claim 8 bleed system, is characterized in that: described drainage pipeline is DN100 drainage pipeline, and downward-sloping 10 degree, described drainage pipeline is provided with draining valve respectively and between described A storehouse and described B storehouse.
10. dewatering storehouse according to claim 1 bleed system, is characterized in that: be provided with concentration basin blowoff valve between described concentration basin and described Pulp pump, and the backwash tube of described concentration basin is provided with concentration basin backwash valve; Clarified water pump is provided with between described clear water reserviors and described boiler; The backwash tube in described A storehouse and described B storehouse is respectively equipped with backwash valve, analyses valve during described dehydration overflow pipe and described dehydration bleed pipe are respectively equipped with and week analyses valve.
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| CN201520706532.7U CN204923021U (en) | 2015-09-11 | 2015-09-11 | Novel dewatering bin bleed system |
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| CN201520706532.7U CN204923021U (en) | 2015-09-11 | 2015-09-11 | Novel dewatering bin bleed system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135452A (en) * | 2015-09-11 | 2015-12-09 | 内蒙古包钢钢联股份有限公司 | Novel dehydration bin water separation system |
| CN107300186A (en) * | 2017-06-06 | 2017-10-27 | 大唐贵州发耳发电有限公司 | A kind of HHT higher high tensile dehydration device |
-
2015
- 2015-09-11 CN CN201520706532.7U patent/CN204923021U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135452A (en) * | 2015-09-11 | 2015-12-09 | 内蒙古包钢钢联股份有限公司 | Novel dehydration bin water separation system |
| CN107300186A (en) * | 2017-06-06 | 2017-10-27 | 大唐贵州发耳发电有限公司 | A kind of HHT higher high tensile dehydration device |
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