CN104791829A - Pulverized coal storing and supplying system - Google Patents
Pulverized coal storing and supplying system Download PDFInfo
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- CN104791829A CN104791829A CN201510173949.6A CN201510173949A CN104791829A CN 104791829 A CN104791829 A CN 104791829A CN 201510173949 A CN201510173949 A CN 201510173949A CN 104791829 A CN104791829 A CN 104791829A
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- storehouse
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- surge bunker
- valve
- bunker
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Abstract
The invention relates to a pulverized coal storing and supplying system which comprises a large pulverized coal bunker, two or more surge bunkers, two or more feeders, a pulverized coal supplying pipe, multiple fluidizing devices and a monitoring system. The large pulverized coal bunker comprises a cylindrical bunker body and two or more conical bunker bodies, the top of the cylindrical bunker body is connected with a discharge hole of the pulverized coal supplying pipe, the bottom of the cylindrical bunker body is fixedly connected with the top of each conical bunker body, the bottom of each conical bunker body is connected with the top of the corresponding surge bunker through a flexible connector, and the bottom of each surge bunker is connected with the corresponding feeder through a flexible connector; the bottom of each surge bunker and the bottom of each conical bunker body are each fixedly provided with the multiple fluidizing devices in the circumferential direction; the monitoring system is arranged on the large pulverized coal bunker, and the monitoring system is connected with a control system through a data line. The pulverized coal storing and supplying system not only can supply materials for two or more large boilers simultaneously, but also can effectively prevent the phenomenon that discharging is difficult due to pulverized coal degassing and hardening from occurring.
Description
Technical field
The present invention relates to a kind of powder storage and supply system, particularly about a kind of coal powder storage and supply system.
Background technology
Coal powder storage and supply system in the middle of prior art is due to volume cause less than normal, a usual pulverized coal warehouse is a corresponding loader only, double burner, two loader are adopted usually for large-sized boiler, therefore, a boiler needs configuration two pulverized coal warehouses, this not only makes the construction of coal powder storage and supply system and overhauls loaded down with trivial details, and makes coal powder storage and supply system overall cost very high.In addition, when coal dust stores in Pulverized Coal Bin, also exist and cause blanking smooth due to degassed with hardening, cause the potential safety hazard of the bursting of boilers.
Summary of the invention
For the problems referred to above, the object of this invention is to provide one can either simultaneously to more than two large-sized boiler feed, effectively can avoid again that coal dust is degassed, harden the coal powder storage and supply system causing blanking not smooth.
For realizing above-mentioned technical purpose, the present invention takes following technical scheme: a kind of coal powder storage and supply system, and it comprises tube cell, some fluidizers and a monitoring system on a large powder storehouse, plural surge bunker, plural loader; Described large powder storehouse comprises a cylindricality storehouse and plural taper storehouse, the top in described cylindricality storehouse connects the discharging opening of described upper tube cell, the bottom in described cylindricality storehouse is fixedly connected with the top in taper storehouse described in each, the bottom in taper storehouse described in each is all flexible coupling by one and connects the top of surge bunker described in each, and the bottom of surge bunker described in each is all flexible coupling by one and connects loader described in each; Surge bunker described in each and the equal circumference in bottom in taper storehouse described in each are fixedly installed some described fluidizers; Described large powder storehouse also arranges a monitoring system, and described monitoring system connects a control system by data wire.
The bottom in taper storehouse described in each all arranges an electric lock air valve, be positioned at described electric lock air valve top each described in taper storehouse arranges the first hand sluice valve respectively.
Surge bunker top described in each all arranges an inspection hand hole and an equal press filtration bag, be positioned at described inspection hand hole bottom each described in surge bunker inwall on be all fixedly installed one every screen cloth, described in each, surge bunker top also connects one end of a pressure-equalizing pipe, and the other end of described pressure-equalizing pipe is communicated with described large powder storehouse.
Described loader comprises the second hand sluice valve, two blocking valves, a hand_pneumatic valve and a venturi assembly, and described in described second hand sluice valve, two, blocking valve, described hand_pneumatic valve and described venturi assembly are arranged in series on the pipeline of surge bunker bottom described in each from top to bottom successively.
The bottom of described upper tube cell is arranged in series a squeezing valve, a filter and an electrical ball valve successively.
Described monitoring system comprises level-sensing device, temperature sensor and CO acquisition sensor; On the sidewall of surge bunker described in each, equal longitudinal separation arranges level-sensing device described at least two groups, and on the sidewall in described large powder storehouse, longitudinal separation arranges level-sensing device described at least four groups; The top of surge bunker described in each all at least arranges temperature sensor described in a group, and on the sidewall in described large powder storehouse, longitudinal separation arranges temperature sensor described at least four groups, and the top in described large powder storehouse at least arranges temperature sensor described in two groups; The top in described large powder storehouse arranges CO acquisition sensor described at least one group.
The top in described large powder storehouse is symmetrical arranged more than one explosion proof door; The top center in described large powder storehouse arranges a sack cleaner, described sack cleaner is arranged a humidity discharging air-introduced machine and more than one pulse valve, pulse valve described in each is all connected to a pulse control instrument, the blast tube of described sack cleaner also connects the compressed air surge tank that is fixedly installed on top, described large powder storehouse sidewall; The top in described large powder storehouse also arranges one group of CO
2pass into interface, the bottom in described large powder storehouse arranges one group of N
2pass into interface.
The supporting construction in described large powder storehouse all adopts steel plate to wrap up.
The two ends be flexible coupling described in each are connected with corresponding device respectively by flange, and are all overlapped by cross-line between flange described in two.
Be flexible coupling described in each for the flexible pipe road adopting the cloth of terylene needled felt or PPS material to process.
The present invention is owing to taking above technical scheme, it has the following advantages: 1, the present invention is owing to being arranged to the version in two or more taper storehouse by the lower end in large powder storehouse, and in the bottom of taper storehouse and surge bunker respectively circumference some fluidizers are set, making can either simultaneously to more than two large-sized boiler feed, effectively can avoid again that coal dust is degassed, the phenomenon causing blanking not smooth that hardens occurs; The present invention is flexible coupling because the top and bottom at surge bunker are arranged respectively, and the stress of surge bunker is completely eliminated, and then effectively improves the accuracy measuring surge bunker weight.2, the present invention is owing to arranging the first hand sluice valve on electric lock air valve top, makes to be flowed downward by adjustment first hand sluice valve block coal dust when electric lock air valve breaks down, and then conveniently overhauls the equipment below the first hand sluice valve.3, the present invention owing to arranging inspection hand hole on surge bunker, is convenient to check the situation in surge bunker and quality of pc at any time; The present invention, owing to arranging every screen cloth in surge bunker, makes it possible to isolate the bulk foreign material be mixed with in coal dust or the block tied because coal dust is moist in time, effectively reduces the impact on loader and combustor stability; The present invention, owing to arranging pressure-equalizing pipe between surge bunker and large powder storehouse, makes it possible to the excessive gas of discharging in time in surge bunker, and then effectively avoids because surge bunker and the uneven explosion caused situation of large powder storehouse pressure occur.4, the present invention is owing to arranging monitoring system, the height change of coal dust in large powder storehouse and surge bunker, variations in temperature and CO change in concentration etc. is made all to be in the state that can monitor in real time, not only be convenient to add coal dust in time or stop adding coal dust, and effectively improve security when equipment works.5, the present invention is owing to arranging explosion proof door, make when spontaneous combustion of pulverized coal or the reason such as to catch fire cause the pressure in large powder storehouse or surge bunker sharply to rise, can reach by the timely pressure release of explosion proof door the object preventing large powder storehouse or surge bunker explosion harm personal safety; The present invention owing to arranging sack cleaner, and arranges humidity discharging air-introduced machine for sack cleaner, not only effectively can prevent dust polluting environment, and moisture in storehouse can be discharged, and make the mobility that coal dust keeps good.Not only project organization is simple, cost is low in the present invention, and be convenient to keep in repair the storage that can be widely used in powder in.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is two taper chamber structure schematic diagrames of the present invention;
Fig. 3 is taper storehouse of the present invention substructure schematic diagram;
Fig. 4 is surge bunker structural representation of the present invention;
Fig. 5 is loader structural representation of the present invention;
Fig. 6 is upper tube cell structural representation of the present invention;
Fig. 7 is level-sensing device arrangement schematic diagram of the present invention;
Fig. 8 is plan structure schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in detail.
As shown in Figure 1, coal powder storage and supply system of the present invention comprises tube cell 4, some fluidizers 5 and a monitoring system on a large powder storehouse 1, plural surge bunker 2, plural loader 3, the number not circumscribed of fluidizer 5, during practical application, determines as required; Large powder storehouse 1 comprises a cylindricality storehouse 11 and plural taper storehouse 12, the top in cylindricality storehouse 11 connects the discharging opening of upper tube cell 4, the bottom in cylindricality storehouse 11 is fixedly connected with the top in each taper storehouse 12, the bottom in each taper storehouse 12 all connects the top of each surge bunker 2 by the (not shown) that is flexible coupling, and the bottom of each surge bunker 2 all connects each loader 3 by the (not shown) that is flexible coupling; The equal circumference in bottom in each surge bunker 2 and each taper storehouse 12 is fixedly installed some fluidizers 5; Large powder storehouse 1 also arranges a monitoring system, and monitoring system connects a control system (not shown) by data wire.
In above-described embodiment, as shown in Figure 2,3, taper storehouse 12 can arrange two; The bottom in each taper storehouse 12 all arranges an electric lock air valve 13, and each the taper storehouse 12 being positioned at electric lock air valve 13 top arranges the first hand sluice valve 14 respectively.
In above-described embodiment, as shown in Figure 4, each surge bunker 2 top all arranges inspection hand hole 21 and an equal press filtration bag 22, be positioned at check hand hole 21 bottom each surge bunker 2 inwall on be all fixedly installed one every screen cloth, each surge bunker 2 top connects one end of a pressure-equalizing pipe 23, and the other end of pressure-equalizing pipe 23 is communicated with large powder storehouse 1; The capacity of each surge bunker 2 can be 3.05m
3; The withstand voltage of each surge bunker 2 is all designed according to 0.4MPa.
In above-described embodiment, as shown in Figure 5, loader 3 comprises the second hand sluice valve 31, two blocking valve 32, hand_pneumatic valve 33 and venturi assembly 34, second hand sluice valve 31, two blocking valve 32, hand_pneumatic valve 33 and venturi assembly 34 are arranged in series from top to bottom successively on the pipeline of each surge bunker 2 bottom.
In above-described embodiment, as shown in Figure 6, the charging aperture of upper tube cell 4 is arranged in series squeezing valve 41, filter 42 and an electrical ball valve 43 successively.
In above-described embodiment, as shown in Figure 7,8, monitoring system comprises some level-sensing devices 6, some temperature sensors 7 and some CO acquisition sensors, wherein, the number of level-sensing device 6, temperature sensor 7 and CO acquisition sensor, not circumscribed, during concrete use, can determine according to actual needs; On the sidewall of each surge bunker 2, equal longitudinal separation arranges at least two group level-sensing devices 6, and on the sidewall in large powder storehouse 1, longitudinal separation arranges at least four group level-sensing devices 6, and the level-sensing device 6 on the sidewall of large powder storehouse 1 can be arranged along cat ladder; The top of each surge bunker 2 all at least arranges one group of temperature sensor 7, on the sidewall in large powder storehouse 1, longitudinal separation arranges at least four group temperature sensors 7, the top in large powder storehouse 1 at least arranges two groups of temperature sensors 7, and wherein, the temperature sensor 7 on the sidewall of large powder storehouse 1 can be arranged along cat ladder; The top in large powder storehouse 1 arranges at least one group of CO acquisition sensor; Level-sensing device 6 on the sidewall of large powder storehouse 1 can adopt blocking rotary type level-sensing device, and the level-sensing device 6 at top, large powder storehouse 1 can adopt radio frequency admittance formula level-sensing device or Plumb-bob Material Level Meter.
In above-described embodiment, the top in large powder storehouse 1 is symmetrical arranged more than one explosion proof door 15, and wherein, the quantity of explosion proof door 15 is determined by DL/T 5203-2005 " thermal power plant and pulverized coal preparation system Explosion-proof Design technical regulation "; The top center in large powder storehouse 1 arranges a sack cleaner 16, sack cleaner 16 is arranged a humidity discharging air-introduced machine and more than one pulse valve, each pulse valve is all connected to a pulse control instrument, the blast tube of sack cleaner 16 also connects the compressed air surge tank that is fixedly installed on top, large powder storehouse 1 sidewall; The top in large powder storehouse 1 can also arrange one group of CO
2pass into interface 17, the bottom in large powder storehouse 1 can arrange one group of N
2pass into interface; The withstand voltage of large powder storehouse 1 is designed according to 0.4MPa; The volume in large powder storehouse 1 can be arranged as required, and concrete scope of design can be 300-1000m
3.
In above-described embodiment, in order to avoid burn into extension device active time, the supporting construction in large powder storehouse 1 all adopts steel plate to wrap up.
In above-described embodiment, each is flexible coupling all can for the flexible pipe road adopting the cloth of terylene needled felt or PPS (polyphenylene sulfide) material to process; Each two ends be flexible coupling is connected with corresponding device respectively by flange, and is all overlapped by cross-line between two flanges, makes equipment ground, and then conducting static electricity.
The course of work of coal powder storage and supply system of the present invention is described below by specific embodiment, large powder storehouse 1 in the present embodiment can connect two surge bunkers 2 by arranging two taper storehouses 12, two surge bunkers 2 can give the large-sized boiler feed of more than two simultaneously by two loaders 3, be specially:
(1) first coal dust enters cylindricality storehouse 11 by upper tube cell 4, then enters each taper storehouse 12 respectively, enters each surge bunker 2 in each bottom, taper storehouse 12 after the preliminary fluidisation of fluidizer 5;
(2) coal dust enters each surge bunker 2 bottom, enters each loader 3 after fluidizer 5 again fluidisation;
(3) coal dust in each loader 3 enters into each boiler-burner and burns under the effect of high velocity air.
Above-described embodiment is only for illustration of the present invention; wherein the structure of each parts, connected mode and manufacture craft etc. all can change to some extent; every equivalents of carrying out on the basis of technical solution of the present invention and improvement, all should not get rid of outside protection scope of the present invention.
Claims (10)
1. a coal powder storage and supply system, is characterized in that: it comprises tube cell, some fluidizers and a monitoring system on a large powder storehouse, plural surge bunker, plural loader; Described large powder storehouse comprises a cylindricality storehouse and plural taper storehouse, the top in described cylindricality storehouse connects the discharging opening of described upper tube cell, the bottom in described cylindricality storehouse is fixedly connected with the top in taper storehouse described in each, the bottom in taper storehouse described in each is all flexible coupling by one and connects the top of surge bunker described in each, and the bottom of surge bunker described in each is all flexible coupling by one and connects loader described in each; Surge bunker described in each and the equal circumference in bottom in taper storehouse described in each are fixedly installed some described fluidizers; Described large powder storehouse also arranges a monitoring system, and described monitoring system connects a control system by data wire.
2. a kind of coal powder storage and supply system as claimed in claim 1, is characterized in that: the bottom in taper storehouse described in each all arranges an electric lock air valve, be positioned at described electric lock air valve top each described in taper storehouse arranges the first hand sluice valve respectively.
3. a kind of coal powder storage and supply system as claimed in claim 1, it is characterized in that: surge bunker top described in each all arranges an inspection hand hole and an equal press filtration bag, be positioned at described inspection hand hole bottom each described in surge bunker inwall on be all fixedly installed one every screen cloth, described in each, surge bunker top also connects one end of a pressure-equalizing pipe, and the other end of described pressure-equalizing pipe is communicated with described large powder storehouse.
4. a kind of coal powder storage and supply system as claimed in claim 1, it is characterized in that: described loader comprises the second hand sluice valve, two blocking valves, a hand_pneumatic valve and a venturi assembly, described in described second hand sluice valve, two, blocking valve, described hand_pneumatic valve and described venturi assembly are arranged in series on the pipeline of surge bunker bottom described in each from top to bottom successively.
5. a kind of coal powder storage and supply system as claimed in claim 1 or 2 or 3 or 4, is characterized in that: the bottom of described upper tube cell is arranged in series a squeezing valve, a filter and an electrical ball valve successively.
6. a kind of coal powder storage and supply system as claimed in claim 1 or 2 or 3 or 4, is characterized in that: described monitoring system comprises level-sensing device, temperature sensor and CO acquisition sensor; On the sidewall of surge bunker described in each, equal longitudinal separation arranges level-sensing device described at least two groups, and on the sidewall in described large powder storehouse, longitudinal separation arranges level-sensing device described at least four groups; The top of surge bunker described in each all at least arranges temperature sensor described in a group, and on the sidewall in described large powder storehouse, longitudinal separation arranges temperature sensor described at least four groups, and the top in described large powder storehouse at least arranges temperature sensor described in two groups; The top in described large powder storehouse arranges CO acquisition sensor described at least one group.
7. a kind of coal powder storage and supply system as claimed in claim 1 or 2 or 3 or 4, is characterized in that: the top in described large powder storehouse is symmetrical arranged more than one explosion proof door; The top center in described large powder storehouse arranges a sack cleaner, described sack cleaner is arranged a humidity discharging air-introduced machine and more than one pulse valve, pulse valve described in each is all connected to a pulse control instrument, the blast tube of described sack cleaner also connects the compressed air surge tank that is fixedly installed on top, described large powder storehouse sidewall; The top in described large powder storehouse also arranges one group of CO
2pass into interface, the bottom in described large powder storehouse arranges one group of N
2pass into interface.
8. a kind of coal powder storage and supply system as claimed in claim 1 or 2 or 3 or 4, is characterized in that: the supporting construction in described large powder storehouse all adopts steel plate to wrap up.
9. a kind of coal powder storage and supply system as claimed in claim 1 or 2 or 3 or 4, is characterized in that: the two ends be flexible coupling described in each are connected with corresponding device respectively by flange, and are all overlapped by cross-line between flange described in two.
10. a kind of coal powder storage and supply system as claimed in claim 1 or 2 or 3 or 4, is characterized in that: be flexible coupling described in each for the flexible pipe road adopting the cloth of terylene needled felt or PPS material to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510173949.6A CN104791829A (en) | 2015-04-14 | 2015-04-14 | Pulverized coal storing and supplying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510173949.6A CN104791829A (en) | 2015-04-14 | 2015-04-14 | Pulverized coal storing and supplying system |
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| Publication Number | Publication Date |
|---|---|
| CN104791829A true CN104791829A (en) | 2015-07-22 |
Family
ID=53556856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510173949.6A Pending CN104791829A (en) | 2015-04-14 | 2015-04-14 | Pulverized coal storing and supplying system |
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| CN (1) | CN104791829A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105460442A (en) * | 2015-12-28 | 2016-04-06 | 莱歇研磨机械制造(上海)有限公司 | Powder-bin heat-tracing flow assisting system |
| CN105775452A (en) * | 2016-03-02 | 2016-07-20 | 煤炭科学技术研究院有限公司 | Powder feeding method |
| CN112936608A (en) * | 2021-02-05 | 2021-06-11 | 西安高科新达混凝土有限责任公司 | Factory raw material residual material quantity detection feedback system |
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| JP2012189225A (en) * | 2011-03-08 | 2012-10-04 | Chugoku Electric Power Co Inc:The | Pipe cleaning method |
| CN102966967A (en) * | 2012-12-03 | 2013-03-13 | 煤炭科学研究总院 | Combined pulverized coal storage and supplying device |
| CN102980200A (en) * | 2012-12-03 | 2013-03-20 | 煤炭科学研究总院 | Pulverized coal industrial boiler system |
| CN203158829U (en) * | 2012-12-03 | 2013-08-28 | 安徽宁国奥特机械有限公司 | Anti-blocking device for pulverized coal feeding system |
| CN204593433U (en) * | 2015-04-14 | 2015-08-26 | 煤炭科学技术研究院有限公司 | Coal powder storage and supply system |
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2015
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06115690A (en) * | 1991-07-16 | 1994-04-26 | Daiyamondo Eng Kk | Pulverized coal emission control device |
| JP2012189225A (en) * | 2011-03-08 | 2012-10-04 | Chugoku Electric Power Co Inc:The | Pipe cleaning method |
| CN102966967A (en) * | 2012-12-03 | 2013-03-13 | 煤炭科学研究总院 | Combined pulverized coal storage and supplying device |
| CN102980200A (en) * | 2012-12-03 | 2013-03-20 | 煤炭科学研究总院 | Pulverized coal industrial boiler system |
| CN203158829U (en) * | 2012-12-03 | 2013-08-28 | 安徽宁国奥特机械有限公司 | Anti-blocking device for pulverized coal feeding system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105460442A (en) * | 2015-12-28 | 2016-04-06 | 莱歇研磨机械制造(上海)有限公司 | Powder-bin heat-tracing flow assisting system |
| CN105775452A (en) * | 2016-03-02 | 2016-07-20 | 煤炭科学技术研究院有限公司 | Powder feeding method |
| CN105775452B (en) * | 2016-03-02 | 2018-05-25 | 煤科院节能技术有限公司 | A kind of powder method of feeding |
| CN112936608A (en) * | 2021-02-05 | 2021-06-11 | 西安高科新达混凝土有限责任公司 | Factory raw material residual material quantity detection feedback system |
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Effective date of registration: 20170124 Address after: Beijing Caiyu Economic Development Zone 102606 Beijing city Daxing District Long Yu Caiyu Town Street No. 5 Applicant after: Energy saving Technology Co., Ltd. Address before: 100013 Beijing Youth Ditch Road, building No. 5, No. 527, Chaoyang District Applicant before: Co., Ltd of coal science and technology academy |
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Application publication date: 20150722 |