CN103466349A - Dry ash truck-loading device used in coal-fired power plant - Google Patents
Dry ash truck-loading device used in coal-fired power plant Download PDFInfo
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- CN103466349A CN103466349A CN2013104107338A CN201310410733A CN103466349A CN 103466349 A CN103466349 A CN 103466349A CN 2013104107338 A CN2013104107338 A CN 2013104107338A CN 201310410733 A CN201310410733 A CN 201310410733A CN 103466349 A CN103466349 A CN 103466349A
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Abstract
The invention discloses a dry ash truck-loading device used in a coal-fired power plant. A plurality of ash buckets are arranged in an ash silo, manual gate valves are arranged at the positions of ash outlets at the bottoms of the ash buckets, the outlet ends of the manual gate valves are sequentially connected with pneumatic gate valves and expansion joints through ash pipes, the outlet ends of the expansion joints are connected with an ash inlet of a dry ash loose-packing machine, and a loose-packing head is arranged at the position of an ash outlet of the dry ash loose-packing machine. A bag-type dust remover is arranged at the position of the ash outlet of the dry ash loose-packing machine, an air sucking port of the bag-type dust remover faces the ash outlet of the dry ash loose-packing machine, an air outlet of the bag-type dust remover is connected with a dust sucking fan, and the ash pipes are arranged in a dip-angle mode. The dry ash truck-loading device used in the coal-fired power plant is simple, the abrasion problem of the dust sucking fan is solved through the ash pipes arranged in the dip-angle mode, the manual butterfly valves and the bag-type dust remover, the material descending speed is reduced, flying materials are decreased, the environmental pollution problem during truck loading is solved, the truck-loading environment is improved, and the investment cost, the operation maintenance amount and the pipe blockage risk are reduced.
Description
Technical field
The present invention relates to a kind of loading apparatus of the dry ash for coal-burning power plant, be applicable to the industries such as coal fired plant, cement, chemical industry, metallurgy, belong to factory's load transfer device technical field.
Background technology
The dry ash loading apparatus is usually used in coal-burning power plant, because coal-burning power plant is in operation, can produce a large amount of dry ashes, consideration based on environmental protection and recycling, need to be by dry ash conveying to lime-ash brick field or other users place, when fed distance is far away or end user's uncertain condition under, adopt the mode of sealable tank entrucking transportation more, be about to be stored in dry ash grey storehouse in and deliver to the end user with the sealable tank entrucking and locate.The purpose of dry ash loading apparatus is that the dry ash in grey storehouse is packed in the sealing car of below, grey storehouse smoothly, and will guarantee that the entrucking process is smooth and easy, blocking not, not airborne dust, do not emit ash.The dry ash loading apparatus generally is arranged in the firing floor in grey storehouse, and the top inlet point connects grey storehouse and piles grey part, and the bottom discharging opening connects below sealing car entrance.The dry ash stored in the ash storehouse enters loading apparatus through inlet point, then is delivered into the sealable tank entrucking by discharging opening.
Existing loading apparatus comprises: 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.There is following problem in existing dry ash loading apparatus:
1, the electric lock pneumatic device easily causes and fills grey path blocking.Due to the needs long-time running, it is large that the impeller of electric lock pneumatic device and the gap between shell easily become, and easily causes electric lock pneumatic device blocking on the one hand.When in grey storehouse, negative pressure is larger on the other hand, the cold air under flapper upwards flows at a high speed ash tube by the electric lock pneumatic device, under the obstruction ash, unloads, even can not cause any more ash, cold air makes hot grey dewfall bonding simultaneously, also can cause ash dropping hopper and material blanking tube to stop up, and fills grey path blocking.
2, easily cause and take out the wearing and tearing of dirt blower fan.Owing to taking out the dirt blower fan, directly with dry ash bulk machine, contact, work under bad environment, contain a large amount of dry ashes in pumped (conveying) medium, after During Process of Long-term Operation, cause the damage in impeller of taking out the dirt blower fan serious.
3, the sealable tank entrucking is easily overflow grey.In filling grey process, due to the grey discrepancy in elevation of falling of discharging opening place, easily outside bulk machine, the sealing car in dust from flying, and dry ash has the characteristic of easily flying upward, the dry ash descending speed is faster, flies upward phenomenon more serious, cause the excessive ash of inlet point of sealing car, so the entrucking environment is severe.
Summary of the invention
Purpose of the present invention, the defects such as obstruction, environmental pollution, equipment attrition to occur in order to overcome existing loading apparatus, a kind of loading apparatus of the dry ash for coal-burning power plant is provided, and this device is conducive to the smooth running of system, realizes that dry ash is smooth, contamination-freely entrucking.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of loading apparatus of the dry ash for coal-burning power plant, comprise grey storehouse, it is characterized in that: several ash dropping hoppers are set in grey storehouse, bottom deslagging mouth place at ash dropping hopper is provided with hand sluice valve, the exit end of hand sluice valve is connected with Pneumatic gate valve, expansion joint in turn by ash tube, the exit end of expansion joint connects the ash inlet of dry ash bulk machine by Hand-operated butterfly valve, the ash hole place of dry ash bulk machine is provided with loading spout; Ash hole place at dry ash bulk machine is provided with bag dust collector, the ash hole of the inlet scoop subtend dry ash bulk machine of bag dust collector, and the air outlet of bag dust collector is connected with takes out the dirt blower fan.
Purpose of the present invention can be achieved through the following technical solutions:
Further: ash tube adopts and is greater than 60 degree inclination angles layouts; By changing the angle of material blanking tube, change the vertical direction descended of dry ash, reduce the material descending speed, thereby reduced flying upward of material.
Further: described bag dust collector is provided with two inlet scoops, the ash hole of one of inlet scoop subtend dry ash bulk machine, for the treatment of near the dust dry ash bulk machine discharging opening; Inlet scoop two with a feeding inlet of sealable tank finishing car, in sealable tank finishing car, forming micro-negative pressure, prevent from sealable tank finishing car overflowing ash.
Beneficial effect of the present invention:
1, the present invention has absorbed near the dust dry ash bulk machine by bag dust collector, and directly dedusting has on the spot avoided the dirt blower fan of taking out thereafter to contact with the direct of dust, has solved the wear problem of taking out the dirt blower fan; By two inlet scoops are set at bag dust collector, bag dust collector is not only processed near the dust of dry ash bulk machine discharging opening, can in the sealing car, form micro-negative pressure, prevented the excessive ash in the sealing car, having greatly reduced dry ash flies upward, problem of environmental pollution while having solved entrucking, improved the entrucking environment, and reduced the risk of cost of investment of the present invention, operating maintenance amount and plugging.
2, equipment of the present invention is simple, by ash tube is, is more than or equal to 60 degree and is in tilted layout, and changes the vertical direction descended of dry ash, reduces the material descending speed, thereby has reduced flying upward of material.
3, the present invention adopts Hand-operated butterfly valve to replace existing electric lock pneumatic device, and Hand-operated butterfly valve is a kind of control cock simple in structure, by Hand-operated butterfly valve cuts off and the throttling ash tube in material, when the deflection angle of change butterfly plate, the flow of control agent.In operational process, the regulating butterfly valve aperture, control flow and flow velocity, reduces material and fly upward, and reduced the risk of equipment blocking.Therefore adopt Hand-operated butterfly valve, can adjust the aperture of valve according to the actual grey situation that falls, control the flow of dry ash, thus dust from flying while controlling ash.Equipment is oversimplified, reduced the risk that equipment attrition is damaged.
The accompanying drawing explanation
Fig. 1 is front view of the present invention.
Fig. 2 is lateral plan of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated.
A kind of loading apparatus of the dry ash for coal-burning power plant as depicted in figs. 1 and 2, comprise grey storehouse 11, be provided with several ash dropping hoppers 1 in grey storehouse 11, bottom deslagging mouth place at ash dropping hopper 1 is provided with hand sluice valve 3, the exit end of hand sluice valve 3 is connected with Pneumatic gate valve 4, expansion joint 5 in turn by ash tube 2, the exit end of expansion joint 5 connects the ash inlet of dry ash bulk machine 7 by Hand-operated butterfly valve 6, the ash hole place of dry ash bulk machine 7 is provided with loading spout, by Hand-operated butterfly valve 6, cuts off and the interior material of throttling ash tube 2; Ash tube 2 adopts and is greater than 60 degree inclination angles layouts; By changing the angle of material blanking tube, change the vertical direction descended of dry ash, reduce the material descending speed, thereby reduced flying upward of material.
Ash hole place at dry ash bulk machine 7 is provided with bag dust collector 9, the ash hole of the inlet scoop subtend dry ash bulk machine 7 of bag dust collector 9, and the air outlet of bag dust collector 9 is connected with takes out dirt blower fan 8.Described bag dust collector 9 is provided with two inlet scoops, the ash hole of one of inlet scoop 9-1 subtend dry ash bulk machine 7, for the treatment of near dust dry ash bulk machine 7 discharging openings; A feeding inlet of two 9-2 of inlet scoop and sealable tank finishing car 10, in the micro-negative pressure of the sealable tank finishing interior formation of car 10, prevent the interior excessive ash of sealable tank finishing car 10.
Principle of work of the present invention:
By hand sluice valve 3, Pneumatic gate valve 4, the Hand-operated butterfly valve 6 of opening on ash tube 2, make dry ash enter the inlet point of sealing car 10 along dry ash bulk machine 7.Dry ash bulk machine 7 and take out between dirt blower fan 8 bag dust collector 9 arranged, absorb near dust sealable tank finishing car 10 inlet points, remain a small amount of dust and then discharge by taking out dirt blower fan 8, avoided contacting with the direct of dust, substantially without wearing and tearing, solved the wear problem of taking out dirt blower fan 8; Two inlet scoops that bag dust collector 9 arranges form micro-negative pressure in the sealing car, have prevented the excessive ash in the sealing car, generation dust without entering in grey storehouse, directly dedusting on the spot, solved pollution problem, improved the entrucking environment.
During entrucking, by the level-sensing device on dry ash bulk machine 7, detect, when reaching the entrucking material level, level-sensing device sends signal, and Pneumatic gate valve is closed, and stops the dress ash.Therefore without unloading ash capacity is controlled, can be controlled level-sensing device and sent the barrier gate order from trend Pneumatic gate valve 4 filling ash amount by the bulk machine level-sensing device, thereby be controlled the flow of dry ash in filling grey process.
During operation, hand sluice valve is often opened, Pneumatic gate valve is opened, dry ash enters ash tube to Hand-operated butterfly valve 6 by ash dropping hopper, evenly be delivered to dry ash bulk machine 7 by Hand-operated butterfly valve 6 again, during dry ash bulk machine 7 operation, bag dust collector 9 dust adsorptions, take out dirt blower fan 8 simultaneously and open, the airborne dust that will produce in the entrucking process is sent grey storehouse to by backwind tube.In above-mentioned operational process: hand sluice valve 3 and Pneumatic gate valve 4 are respectively course of conveying to be realized closing and opening when maintenance and normal operation; Hand-operated butterfly valve 6 is a kind of control cocks simple in structure, and on pipeline, main rising cut off and throttling action, when the deflection angle that changes butterfly plate, and flow that can control agent.In operational process, the regulating butterfly valve aperture, controllable flow rate and flow velocity, reduce material and fly upward, and reduced the risk of equipment blocking.Therefore it is considered herein that the entrance at dry ash bulk machine, adopt Hand-operated butterfly valve 6, can adjust the aperture of valve according to the actual grey situation that falls, control the flow of dry ash, control grey dust from flying.
When pumped (conveying) medium and dry ash character, when similar, this loading apparatus also can be used for the industries such as cement, chemical industry, metallurgy.
Claims (3)
1. the loading apparatus of the dry ash for coal-burning power plant, comprise grey storehouse (11), it is characterized in that: several ash dropping hoppers (1) are set in Hui Ku (1), bottom deslagging mouth place at ash dropping hopper (1) is provided with hand sluice valve (3), the exit end of hand sluice valve (3) is connected with Pneumatic gate valve (4), expansion joint (5) in turn by ash tube (2), the exit end of expansion joint (5) connects the ash inlet of dry ash bulk machine (7) by Hand-operated butterfly valve (6), the ash hole place of dry ash bulk machine (7) is provided with loading spout; Be provided with bag dust collector (9) at the ash hole place of dry ash bulk machine (7), the ash hole of the inlet scoop subtend dry ash bulk machine (7) of bag dust collector (9), the air outlet of bag dust collector (9) is connected with takes out dirt blower fan (8).
2. a kind of loading apparatus of the dry ash for coal-burning power plant according to claim 1 is characterized in that: described ash tube (2) adopts and is greater than 60 degree inclination angles and arranges; By changing the angle of material blanking tube, change the vertical direction descended of dry ash, reduce the material descending speed, thereby reduced flying upward of material.
3. a kind of loading apparatus of the dry ash for coal-burning power plant according to claim 1 and 2, it is characterized in that: described bag dust collector (9) is provided with two inlet scoops, the ash hole of one of inlet scoop (9-1) subtend dry ash bulk machine (7), for the treatment of near dust dry ash bulk machine (7) discharging opening; Two (9-2) of inlet scoop, with a feeding inlet of sealable tank finishing car (10), for form micro-negative pressure in sealable tank finishing car (10), prevent from sealable tank finishing car (10) overflowing 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 true CN103466349A (en) | 2013-12-25 |
| CN103466349B CN103466349B (en) | 2016-09-14 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (1)
| 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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2013
- 2013-09-10 CN CN201310410733.8A patent/CN103466349B/en active Active
Patent Citations (1)
| 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 | Publication date |
|---|---|
| CN103466349B (en) | 2016-09-14 |
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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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Free format text: CORRECT: APPLICANT; FROM: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC POWER DESIGN INSTITUTE TO: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC POWER DESIGN INSTITUTE CO., LTD. |
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