CN103466349B - A kind of dry ash loading apparatus for coal-burning power plant - Google Patents
A kind of dry ash loading apparatus for coal-burning power plant Download PDFInfo
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- CN103466349B CN103466349B CN201310410733.8A CN201310410733A CN103466349B CN 103466349 B CN103466349 B CN 103466349B CN 201310410733 A CN201310410733 A CN 201310410733A CN 103466349 B CN103466349 B CN 103466349B
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Abstract
The present invention discloses a kind of dry ash loading apparatus for coal-burning power plant, in ash storehouse, several ash dropping hoppers are set, it is provided with hand sluice valve at the bottom deslagging mouth of ash dropping hopper, the port of export of hand sluice valve is connected with Pneumatic gate valve, expansion joint in turn by ash tube, the port of export of expansion joint manually butterfly valve connects the ash inlet of dry ash bulk machine, is provided with loading spout at the ash hole of dry ash bulk machine；Being provided with sack cleaner at the ash hole of dry ash bulk machine, the inlet scoop of sack cleaner is to the ash hole of dry ash bulk machine, and the air outlet of sack cleaner connects takes out dirt blower fan, and ash tube inclination angle is arranged.The equipment of the present invention is simple, by ash tube inclination angle layout, Hand-operated butterfly valve, sack cleaner being solved the wear problem taking out dirt blower fan, reduce material decrease speed, reduce material to fly upward, solve problem of environmental pollution during entrucking, improve entrucking environment, reduce cost of investment, operation maintenance amount and the risk of plugging.
Description
Technical field
The present invention relates to a kind of dry ash loading apparatus for coal-burning power plant, it is adaptable to the industries such as coal fired plant, cement, chemical industry, metallurgy, belong to factory's conveying equipment technical field.
Background technology
Dry ash loading apparatus is usually used in coal-burning power plant, because coal-burning power plant is in operation, a large amount of dry ash can be produced, based on environmental protection and the consideration of recycling, need at dry ash conveying to lime-ash brick field or other users, when fed distance is remote or under end user's uncertain condition, the modes using hermetically sealed can entrucking transport, the dry ash hermetically sealed can entrucking that will be stored in ash storehouse is delivered at end user more.The purpose of dry ash loading apparatus is to be loaded smoothly in the sealing car below ash storehouse by the dry ash in ash storehouse, and entrucking process to be ensured is smooth and easy, not blocking, not airborne dust, do not emit ash.Dry ash loading apparatus is typically located at the firing floor in ash storehouse, and upper feed inlet connects ash storehouse heap ash part, seals car entrance below the connection of bottom discharging opening.The dry ash stored in ash storehouse enters loading apparatus through charging aperture, then is delivered into hermetically sealed can entrucking by discharging opening.
Existing loading apparatus includes: ash dropping hopper, hand sluice valve, Pneumatic gate valve, electric lock pneumatic device, dry ash bulk machine, take out dirt blower fan and ash tube etc..Existing dry ash loading apparatus there is problems in that
1, electric lock pneumatic device easily causes dress ash path blocking.On the one hand due to needs longtime running, the gap between impeller and the shell of electric lock pneumatic device easily becomes big, easily causes electric lock pneumatic device blocking.On the other hand, when in ash storehouse, negative pressure is bigger, the cold air under flapper upwards flows at a high speed ash tube by electric lock pneumatic device, hinders and unloads under ash, can do not even result in any more ash, cold air makes heat ash condensation bonding simultaneously, will also result in ash dropping hopper and material blanking tube blocking, dress ash path blocking.
2, easily cause take out dirt blower fan abrasion.Directly contact with dry ash bulk machine owing to taking out dirt blower fan, work under bad environment, containing substantial amounts of dry ash in pumped (conveying) medium, after During Process of Long-term Operation, cause the damage in impeller taking out dirt blower fan serious.
3, hermetically sealed can entrucking is easily overflow grey.During dress ash, due to the ash discrepancy in elevation that falls of discharge outlet, easily outer at bulk machine, seal dust from flying in car, and dry ash has the characteristic easily flown upward, dry ash decrease speed is the fastest, flies upward phenomenon the most serious, the charging aperture sealing car is caused to overflow grey, so entrucking bad environments.
Summary of the invention
The purpose of the present invention, is to overcome existing loading apparatus the defects such as blocking, environmental pollution, equipment attrition occur, it is provided that a kind of dry ash loading apparatus for coal-burning power plant, and this device is conducive to the even running of system, it is achieved dry ash is smooth, contamination-freely entrucking.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of dry ash loading apparatus for coal-burning power plant, including ash storehouse, it is characterized in that: in ash storehouse, several ash dropping hoppers are set, it is provided with hand sluice valve at the bottom deslagging mouth of ash dropping hopper, the port of export of hand sluice valve is connected with Pneumatic gate valve, expansion joint in turn by ash tube, the port of export of expansion joint manually butterfly valve connects the ash inlet of dry ash bulk machine, is provided with loading spout at the ash hole of dry ash bulk machine；Being provided with sack cleaner at the ash hole of dry ash bulk machine, the inlet scoop of sack cleaner is to the ash hole of dry ash bulk machine, and the air outlet of sack cleaner connects takes out dirt blower fan.
The purpose of the present invention can be achieved through the following technical solutions:
Further: ash tube uses to be arranged more than 60 degree of inclination angles；By changing the angle of material blanking tube, change the direction that dry ash vertically declines, reduce material decrease speed, thus decrease flying upward of material.
Further: described sack cleaner is provided with two inlet scoops, a pair of inlet scoop to the ash hole of dry ash bulk machine, be used for processing dust near dry ash bulk machine discharging opening；The two of inlet scoop communicate with a charging aperture of hermetically sealed can finishing car, for formation tiny structure in hermetically sealed can finishing car, excessive ash in preventing hermetically sealed can from fitting up car.
Beneficial effects of the present invention:
1, the present invention absorbs the dust near dry ash bulk machine, the most on the spot dedusting by sack cleaner, it is to avoid thereafter take out directly contacting of dirt blower fan and dust, solve the wear problem taking out dirt blower fan；By arranging two inlet scoops at sack cleaner, sack cleaner not only processes dust near dry ash bulk machine discharging opening, tiny structure can be formed in sealing car, prevent the excessive ash sealed in car, greatly reduce dry ash to fly upward, solve problem of environmental pollution during entrucking, improve entrucking environment, and reduce the cost of investment of the present invention, operation maintenance amount and the risk of plugging.
2, the equipment of the present invention is simple, by being in tilted layout in more than or equal to 60 degree by ash tube, changes the direction that dry ash vertically declines, reduces material decrease speed, thus decrease flying upward of material.
3, the present invention uses Hand-operated butterfly valve to replace existing electric lock pneumatic device, and Hand-operated butterfly valve is the regulation valve of a kind of simple in construction, and manually butterfly valve cuts off and material in throttling ash tube, when the deflection angle of change butterfly plate, controls the flow of medium.In running, regulating butterfly valve aperture, control flow and flow velocity, reduce material and fly upward, reduce the risk of equipment blocking.Therefore use Hand-operated butterfly valve, it is possible to according to actual fall ash situation, adjust valve aperture, control dry ash flow, thus control fall ash time dust from flying.Make equipment simplify, reduce the risk that equipment attrition is damaged.
Accompanying drawing explanation
Fig. 1 is the front view of the present invention.
Fig. 2 is the side view of the present invention.
Detailed description of the invention
The present invention is further illustrated below in conjunction with the accompanying drawings.
A kind of dry ash loading apparatus for coal-burning power plant, including ash storehouse 11, it is provided with several ash dropping hoppers 1 in ash storehouse 11, hand sluice valve 3 it is provided with at the bottom deslagging mouth of ash dropping hopper 1, the port of export of hand sluice valve 3 is connected with Pneumatic gate valve 4, expansion joint 5 in turn by ash tube 2, the port of export of expansion joint 5 manually butterfly valve 6 connects the ash inlet of dry ash bulk machine 7, being provided with loading spout at the ash hole of dry ash bulk machine 7, manually butterfly valve 6 cuts off and material in the ash tube 2 that throttles；Ash tube 2 uses to be arranged more than 60 degree of inclination angles；By changing the angle of material blanking tube, change the direction that dry ash vertically declines, reduce material decrease speed, thus decrease flying upward of material.
Being provided with sack cleaner 9 at the ash hole of dry ash bulk machine 7, the inlet scoop of sack cleaner 9 is to the ash hole to dry ash bulk machine 7, and the air outlet of sack cleaner 9 connects takes out dirt blower fan 8.Described sack cleaner 9 is provided with two inlet scoops, one of inlet scoop 9-1 to the ash hole of dry ash bulk machine 7, be used for processing dust near dry ash bulk machine 7 discharging opening；Two 9-2 of inlet scoop communicate with a charging aperture of hermetically sealed can finishing car 10, for formation tiny structure in hermetically sealed can finishing car 10, excessive ash in preventing hermetically sealed can from fitting up car 10.
The operation principle of the present invention:
By opening hand sluice valve 3 on ash tube 2, Pneumatic gate valve 4, Hand-operated butterfly valve 6 make dry ash enter the charging aperture sealing car 10 along dry ash bulk machine 7.Dry ash bulk machine 7 and take out between dirt blower fan 8 arrange sack cleaner 9, absorb the dust near hermetically sealed can finishing car 10 charging aperture, remain a small amount of dust and discharge by taking out dirt blower fan 8 the most again, it is to avoid with directly contacting of dust, substantially without abrasion, the wear problem taking out dirt blower fan 8 is solved；Two inlet scoops that sack cleaner 9 is arranged, form tiny structure in car sealing, it is therefore prevented that seal the excessive ash in car, generation dust without entering in ash storehouse, dedusting the most on the spot, solve pollution problem, improve entrucking environment.
During entrucking, being detected by the level-sensing device on dry ash bulk machine 7, when reaching entrucking material position, level-sensing device sends signal, and Pneumatic gate valve is closed, and stops dress ash.Therefore without unloading ash capacity is controlled during dress ash, by bulk machine level-sensing device, dress ash quantity can be controlled level-sensing device and send barrier gate order from trend Pneumatic gate valve 4, thus control the flow of dry ash.
During operation, hand sluice valve is normally opened, Pneumatic gate valve is opened, dry ash enters ash tube to Hand-operated butterfly valve 6 by ash dropping hopper, the most manually butterfly valve 6 is uniformly delivered to dry ash bulk machine 7, and when dry ash bulk machine 7 runs, sack cleaner 9 absorbs dust, take out dirt blower fan 8 to open simultaneously, the airborne dust produced during entrucking is sent into ash storehouse by backwind tube.In above-mentioned running: hand sluice valve 3 and Pneumatic gate valve 4 are with time properly functioning in maintenance course of conveying realization to be closed and opened respectively；Hand-operated butterfly valve 6 is the regulation valve of a kind of simple in construction, acts primarily as cut-out and throttling action on pipeline, when the deflection angle of change butterfly plate, can control the flow of medium.In running, regulating butterfly valve aperture, controllable flow rate and flow velocity, reduce material and fly upward, reduce the risk of equipment blocking.Therefore it is considered herein that the porch at dry ash bulk machine, use Hand-operated butterfly valve 6, can according to actual fall ash situation, adjust valve aperture, control dry ash flow, control fall ash dust from flying.
When pumped (conveying) medium is similar with dry ash character, this loading apparatus can be additionally used in the industries such as cement, chemical industry, metallurgy.
Claims (3)
1. the dry ash loading apparatus for coal-burning power plant, including ash storehouse (11), it is characterized in that: several ash dropping hoppers (1) are set in Hui Ku (11), hand sluice valve (3) it is provided with at the bottom deslagging mouth of ash dropping hopper (1), the port of export of hand sluice valve (3) is connected with Pneumatic gate valve (4), expansion joint (5) in turn by ash tube (2), the port of export manually butterfly valve (6) of expansion joint (5) connects the ash inlet of dry ash bulk machine (7), is provided with loading spout at the ash hole of dry ash bulk machine (7)；Being provided with sack cleaner (9) at the ash hole of dry ash bulk machine (7), the inlet scoop of sack cleaner (9) is to the ash hole to dry ash bulk machine (7), and the air outlet of sack cleaner (9) connects takes out dirt blower fan (8).
A kind of dry ash loading apparatus for coal-burning power plant the most according to claim 1, it is characterised in that: described ash tube (2) uses to be arranged more than 60 degree of inclination angles；By changing the angle of ash tube, change the direction that dry ash vertically declines, reduce dry ash decrease speed, thus decrease flying upward of dry ash.
A kind of dry ash loading apparatus for coal-burning power plant the most according to claim 1 and 2, it is characterized in that: described sack cleaner (9) is provided with two inlet scoops, one of inlet scoop (9-1) to the ash hole to dry ash bulk machine (7), be used for processing dust near dry ash bulk machine (7) ash hole；Two (9-2) of inlet scoop communicate with a charging aperture of hermetically sealed can finishing car (10), form tiny structure in fitting up car (10) at hermetically sealed can, and overflow in preventing hermetically sealed can finishing car (10) ash.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310410733.8A CN103466349B (en) | 2013-09-10 | 2013-09-10 | A kind of dry ash loading apparatus for coal-burning power plant |
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| CN201310410733.8A CN103466349B (en) | 2013-09-10 | 2013-09-10 | A kind of dry ash loading apparatus for coal-burning power plant |
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| CN103466349A CN103466349A (en) | 2013-12-25 |
| CN103466349B true CN103466349B (en) | 2016-09-14 |
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| CN105182891A (en) * | 2015-08-18 | 2015-12-23 | 淮沪电力有限公司 | Dry ash bulk machine control system using PLC to control |
| CN110950103A (en) * | 2019-12-26 | 2020-04-03 | 浙江菲达环保科技股份有限公司 | Train charging devices of environmental protection |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203497777U (en) * | 2013-09-10 | 2014-03-26 | 中国能源建设集团广东省电力设计研究院 | Dry ash entrucking device used for coal-fired power plant |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203497777U (en) * | 2013-09-10 | 2014-03-26 | 中国能源建设集团广东省电力设计研究院 | Dry ash entrucking device used for coal-fired power plant |
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Address after: 510670 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Applicant after: Company limited of China Energy Engineering Group Guangdong Electric Power Design Institute Address before: 510670 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Applicant before: Guangdong Electric Power Design Institute of CEEC |
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