CN202625363U - Purging system for dry ash conveying in power plant - Google Patents
Purging system for dry ash conveying in power plant Download PDFInfo
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- CN202625363U CN202625363U CN 201220260218 CN201220260218U CN202625363U CN 202625363 U CN202625363 U CN 202625363U CN 201220260218 CN201220260218 CN 201220260218 CN 201220260218 U CN201220260218 U CN 201220260218U CN 202625363 U CN202625363 U CN 202625363U
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Abstract
The utility model belongs to dry ash conveying equipment in a power plant, and particularly relates to a purging system for dry ash conveying in the power plant. The purging system is characterized by comprising an ash conveying pipeline, an ash bucket, a pump bin, a feed valve, a first air feed control valve, a discharging valve, a second air feed control valve, a dredging air feed control valve, a pressure transmitter, an exhaust valve and a dry ash warehouse, wherein the ash bucket is connected with the pump bin through the pipeline and the feed valve; a fluidization chamber is arranged at the lower bottom of the pump bin; the first air feed control valve is arranged at the bottom of the fluidization chamber; the fluidization chamber is communicated with the ash conveying pipeline through a pipeline and the discharging valve; the second air feed control valve is arranged on the ash conveying pipeline; and the ash conveying pipeline is communicated with the dry ash warehouse. The purging system has the advantages that the ash conveying pipeline is divided into a plurality of sections through a tracking pipeline, and the sections are pressurized from the front to the back in sequence, and controlled independently, so as to achieve the purpose of dredging a pipeline. Before pipeline blockage, the blocked part can be detected in advance, and the blockage is avoided in the bud.
Description
Technical field
The utility model belongs to power plant dry ash load transfer device, relates in particular to the purging system that a kind of power plant dry ash is carried.
Background technology
With the fire coal is the thermoelectric power station power plant of power, and coal-fired bad consumption produces a large amount of fly ash, i.e. dry ash behind the coal combustion.Normally with emitting as the refuse wet method behind the dry ash water mix.This discharge method, the very big place that takies also pollutes to surrounding environment simultaneously.At present dry method exhaust methods that adopt strength to carry more.Be that dry ash is transported in the dry ash warehouse through pipeline, entrucking is then used as building materials.Reduced environmental pollution like this, can turn waste into wealth again.Owing to exist factors such as frictional resistance and fluctuation of pressure in the ash handing pipeline, cause the defeated ash of pipeline not smooth, sometimes even cause line clogging.Get rid of the method for stopping up and generally adopt pressure purge.But this method does not prove effective sometimes, tends to make the severe more of line clogging, causes the power plant to stop production, and carries out artificial block clearing.
The utility model content
The utility model is in order to overcome deficiency of the prior art, provide a kind of need not to shut down to get rid of stop up the purging system that the power plant dry ash that purges conveying is carried.
The utility model is for realizing above-mentioned purpose; Realize through following technical scheme; The purging system that a kind of power plant dry ash is carried is characterized in that: comprise ash handing pipeline, ash bucket, pump storehouse, inlet valve, first supply gas control cock, bleeder valve, second supply gas control cock, mediation supply gas control cock, pressure transformer, blow off valve and dry ash warehouse, said ash bucket is connected with the pump storehouse with inlet valve through pipeline; Said pump storehouse lower bottom part is provided with fluidising chamber; Said fluidising chamber bottom is provided with first control cock of supplying gas, and said fluidising chamber is communicated with ash handing pipeline through pipeline and bleeder valve, and said ash handing pipeline is provided with second control cock of supplying gas; Said ash handing pipeline is communicated with the dry ash warehouse, and with the said ash handing pipeline tracking pipeline that laterally arranges, said tracking pipeline is communicated with ash handing pipeline through some mediation air ducts, and said mediation air duct is provided with the mediation control cock of supplying gas.
Said ash handing pipeline is provided with pressure transformer.
Be provided with blow off valve between said ash bucket and the pump storehouse.
Beneficial effect: adopt the tracking pipeline that ash handing pipeline is divided into plurality of sections, according to order, pressurization is successively backward divided and rule in the past.Reach the purpose of mediation pipeline.Before line clogging takes place, just can measure in advance, and blockage problem is solved in bud.When pipeline took place to stop up, employing was pulled out method and just can be got rid of obstruction fast and effectively.Can be widely used in the conveying of the dust, powder etc. of industries such as industry, building materials, equipment is simple, and method is simple and effective.
Description of drawings
Fig. 1 is the scheme drawing of power plant dry ash transportation antiplugging mechanism
Fig. 2 is the scheme drawing of ash handing pipeline block part
Among the figure: 1 ash bucket, 2 inlet valves, 3 pump storehouses, 4 first control cock of supplying gas, 5 bleeder valves; 6 ash handing pipelines, 7 second control cock of supplying gas, 8 dry ash warehouses, 9 follow the tracks of pipelines, the 10 mediations control cock of supplying gas; 11 fluidising chamber, 12 pressure transformers, 13 blows off valve, 14 mediation aspirating pipelines, 15 block part.
The specific embodiment
Below in conjunction with preferred embodiment; Details are as follows to the specific embodiment that provides according to the utility model: see accompanying drawing for details; The purging system that a kind of power plant dry ash is carried; Comprise ash handing pipeline 6, ash bucket 1, pump storehouse 3, inlet valve 2, first supply gas control cock 4, bleeder valve 5, second supply gas control cock 7, mediation supply gas control cock 10, pressure transformer 12, blow off valve 13 and dry ash warehouse 8; Said ash bucket is connected with the pump storehouse with inlet valve through pipeline, and said pump storehouse lower bottom part is provided with fluidising chamber 11, is provided with first control cock 4 of supplying gas bottom the said fluidising chamber; Said fluidising chamber is communicated with ash handing pipeline through pipeline and bleeder valve 5, and said ash handing pipeline is provided with second control cock of supplying gas; Said ash handing pipeline is communicated with the dry ash warehouse, laterally arranges with said ash handing pipeline and follows the tracks of pipeline 9, and said tracking pipeline is communicated with ash handing pipeline through some mediation air ducts, and said mediation air duct 14 is provided with dredges the control cock 10 of supplying gas.Said ash handing pipeline is provided with pressure transformer.Be provided with blow off valve between said ash bucket and the pump storehouse.
Working process
Dry ash is opened inlet valve through being collected in behind the electrostatic precipitation in the ash bucket, and dry ash gets into the pump storehouse; The top in pump storehouse is provided with blow off valve, and blow off valve is regulated the pressure reduction between ash bucket and the pump storehouse, makes blanking smooth and easy; When the dry ash amount reach the pump holding capacity of bin 80% the time, close inlet valve, open first control cock 4 of supplying gas; Once gas gets into the pump storehouse through the fluidising chamber 11 of bottom, pump storehouse; Dry ash is carried out fluidisation.Through the dry ash of fluidisation, become the fluid of high-speed motion; Open bleeder valve 5 this moment, and the dry ash air-flow just gets into ash handing pipeline 6, begins to purge, and opens second control cock 7 of supplying gas, feeding secondary gas, and promptly normal defeated grey pressure, dry ash gets into ash handing pipeline 6 and purges, and dry ash is blown into dry ash warehouse 8.Laterally arrange along ash handing pipeline 6 and to follow the tracks of pipeline 9, and ash handing pipeline 6 is provided with several mediation aspirating pipelines 14 with following the tracks of between the pipeline 9, and connect with following the tracks of pipeline 9, be provided with on the mediation aspirating pipeline 14 and dredge the control cock 10 of supplying gas with ash handing pipeline 6.Pressure transformer 12 is set on ash handing pipeline 6 measures delivery pressure in the ash handing pipelines 6, dry ash is transported to dry ash warehouse 8 by the forced draft of transfer line 6.Stifled in advance omen appears in the ash handing pipeline 6; The mediation of the opening pipeline block part 15 leading portions control cock 10 of supplying gas; From following the tracks of ash handing pipeline 6 air inlets of pipeline 9 block part 15 leading portions to ash handing pipeline 6, the mediation of the opening pipeline block part 15 back segments again control cock 10 of supplying gas is from following the tracks of ash handing pipeline 6 air inlets of pipeline 9 block part 15 back segments to ash handing pipeline 6; The position that will stop up in the ash handing pipeline 6 is purged and is sent into the dry ash warehouse under the effect of pressed gas; Transfer line 6 is unimpeded, the mediation of mediation air intake control valve of the block part of blinding off a line 15 leading portions 10 and the line clogging position 15 back segments control cock 10 of supplying gas, and ash handing pipeline 6 recovers normal defeated grey operation.Ash handing pipeline 6 stops up; Can not normally fail ash; Close mediation control cock 10 and second control cock of supplying gas of supplying gas immediately, open bleeder valve 5 and blow off valve 13, the pressure in the ash handing pipeline 6 just makes ash handing pipeline 6 pressure releases through pump storehouse 3, freeing pipe 13 entering ash buckets; The dry ash that gets lodged in the ash handing pipeline 6 is arranged into pump storehouse 3 and ash bucket 1, and ash handing pipeline 6 can be dredged.Still obstructed like ash handing pipeline 6, then close bleeder valve 5.
Dry ash carries out according to predefined pressure in course of conveying.The size of air pressure mainly is to be decided by factors such as how many dry ash warehouse height of the change head in its traffic capacity, fed distance, the delivery pipe.Dry ash is in course of conveying, and the dry ash air-flow of fluidisation is similar to that sinusoidal waveform pushes ahead.
The above only is the preferred embodiment of the utility model, is not the structure of the utility model is done any pro forma restriction.Every technical spirit according to the utility model is to any simple modification, equivalent variations and modification that above embodiment did, all still belongs in the scope of technical scheme of the utility model.
Claims (3)
1. purging system that the power plant dry ash is carried; It is characterized in that: comprise ash handing pipeline, ash bucket, pump storehouse, inlet valve, first supply gas control cock, bleeder valve, second supply gas control cock, mediation supply gas control cock, pressure transformer, blow off valve and dry ash warehouse; Said ash bucket is connected with the pump storehouse with inlet valve through pipeline; Said pump storehouse lower bottom part is provided with fluidising chamber; Said fluidising chamber bottom is provided with first control cock of supplying gas, and said fluidising chamber is communicated with ash handing pipeline through pipeline and bleeder valve, and said ash handing pipeline is provided with second control cock of supplying gas; Said ash handing pipeline is communicated with the dry ash warehouse, and with the said ash handing pipeline tracking pipeline that laterally arranges, said tracking pipeline is communicated with ash handing pipeline through some mediation air ducts, and said mediation air duct is provided with the mediation control cock of supplying gas.
2. the purging system that power plant according to claim 1 dry ash is carried, it is characterized in that: said ash handing pipeline is provided with pressure transformer.
3. the purging system that power plant according to claim 1 dry ash is carried is characterized in that: be provided with blow off valve between said ash bucket and the pump storehouse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220260218 CN202625363U (en) | 2012-06-05 | 2012-06-05 | Purging system for dry ash conveying in power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220260218 CN202625363U (en) | 2012-06-05 | 2012-06-05 | Purging system for dry ash conveying in power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202625363U true CN202625363U (en) | 2012-12-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220260218 Expired - Fee Related CN202625363U (en) | 2012-06-05 | 2012-06-05 | Purging system for dry ash conveying in power plant |
Country Status (1)
| Country | Link |
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| CN (1) | CN202625363U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103274217A (en) * | 2013-06-20 | 2013-09-04 | 中天钢铁集团有限公司 | Novel coal conveying bunker type pump with blockage-preventing outlet |
| CN103523534A (en) * | 2013-10-17 | 2014-01-22 | 山东金宇实业股份有限公司 | Carbon black pneumatic conveying system |
| CN112320360A (en) * | 2019-12-30 | 2021-02-05 | 上海博隆装备技术股份有限公司 | Positive pressure conveying method for light powder and granular material |
| CN115849012A (en) * | 2022-11-18 | 2023-03-28 | 中冶南方(湖南)工程技术有限公司 | Coke powder pneumatic conveying method and system |
-
2012
- 2012-06-05 CN CN 201220260218 patent/CN202625363U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103274217A (en) * | 2013-06-20 | 2013-09-04 | 中天钢铁集团有限公司 | Novel coal conveying bunker type pump with blockage-preventing outlet |
| CN103274217B (en) * | 2013-06-20 | 2016-03-02 | 中天钢铁集团有限公司 | The novel defeated coal cone pump of outlet anti-clogging |
| CN103523534A (en) * | 2013-10-17 | 2014-01-22 | 山东金宇实业股份有限公司 | Carbon black pneumatic conveying system |
| CN112320360A (en) * | 2019-12-30 | 2021-02-05 | 上海博隆装备技术股份有限公司 | Positive pressure conveying method for light powder and granular material |
| CN115849012A (en) * | 2022-11-18 | 2023-03-28 | 中冶南方(湖南)工程技术有限公司 | Coke powder pneumatic conveying method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20170605 |