CN204693396U - The energy-conservation low nitrogen combustion apparatus of a kind of fluidised form reconstruct CFB boiler resume combustion - Google Patents
The energy-conservation low nitrogen combustion apparatus of a kind of fluidised form reconstruct CFB boiler resume combustion Download PDFInfo
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- CN204693396U CN204693396U CN201520072312.3U CN201520072312U CN204693396U CN 204693396 U CN204693396 U CN 204693396U CN 201520072312 U CN201520072312 U CN 201520072312U CN 204693396 U CN204693396 U CN 204693396U
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- ash silo
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Abstract
The utility model discloses the energy-conservation low nitrogen combustion apparatus of a kind of fluidised form reconstruct CFB boiler resume combustion, be made up of pulse ash remover, defeated grey feed pipe, sack cleaner, defeated ash silo, air inlet, blower fan, hand operated gate valve, electric feeder, water conservancy diversion conveying pipeline, ash silo gasification groove, CFB boiler, chain type coal transportation belt a, chain type coal transportation belt b, boiler coal feed point, cigarette ash passing away, height level-sensing device counting apparatus, pressure vacuum relief valve; Adopt defeated ash silo ash conveying to be reconstructed mixed combustion, utilize pulse ash remover and sack cleaner effectively can filter gas collection ash, the air inlet of band blower fan can prevent ash precipitation knot in storehouse from pulling blocking discharging; Not only can improve combustion rate and save raw coal consumption, the low-temperature burning state can also facilitated in boiler, effectively reduce the discharge capacity of oxynitrides and alleviate on-load ability, can guarantee the discharge standard meeting country, be a kind of desirable energy-conservation low nitrogen combustion apparatus of CFB boiler resume combustion.
Description
Technical field
The present invention relates to the technical field of boiler, especially the energy-conservation low nitrogen combustion apparatus of a kind of fluidised form reconstruct CFB boiler resume combustion.
Background technology
Increasingly serious along with China environmental protection situation, oxynitrides receives more and more stricter management and control as Air Pollutants; Wherein, the Industrial Nitrogen oxygen compound discharge comprising coal-fired power station boiler becomes the primary discharge source of atmosphere pollution; Because the stove Inner eycle ash quantity of conventional boiler is less, cause material layer temperature higher, more than 980 DEG C, on-load ability is lower; Simultaneously because circulating ash quantity is few, the Inner eycle amount made is few, and must reduce bed temperature by the mode increasing air output, cause pressure fan electric current to increase, boiler power consumption also rises thereupon simultaneously.Well-known two fire box temperatures are one of most important factor producing oxynitrides, and the discharge of the higher oxynitrides of temperature is higher.
At present, the oxynitride discharge of most domestic recirculating fluidized bed CFB boiler does not all reach the up-to-date environmental protection standard requirement of country, all there is oxynitride discharge to exceed standard and consume energy higher defect, the CFB boiler operatiopn of many power plant simultaneously all also exists the problem of on-load scarce capacity, fire box temperature overtemperature, brings many unfavorable factors to the production of enterprise.
Summary of the invention
The energy-conservation low nitrogen combustion apparatus of a kind of fluidised form reconstruct CFB boiler resume combustion of the utility model, the deficiency of above-mentioned technology can be solved, adopt defeated ash silo ash conveying to be reconstructed the energy-conservation resume combustion of mixing, effectively can realize the object of the fluidised form reconstruct energy-saving combustion of burning material.
To achieve these goals, technical solution of the present invention is: the energy-conservation low nitrogen combustion apparatus of a kind of fluidised form reconstruct CFB boiler resume combustion is made up of pulse ash remover, defeated grey feed pipe, sack cleaner, defeated ash silo, air inlet, blower fan, hand operated gate valve, electric feeder, water conservancy diversion conveying pipeline, ash silo gasification groove, CFB boiler, chain type coal transportation belt a, chain type coal transportation belt b, boiler coal feed point, cigarette ash passing away, height level-sensing device counting apparatus, pressure vacuum relief valve; The defeated ash silo that bottom is inferior pyramidal is set, defeated ash silo central upper portion arranges pulse ash remover, top one sidepiece arranges defeated grey feed pipe, opposite side arranges ash silo gasification groove and pressure vacuum relief valve, the side of defeated ash silo arranges height level-sensing device counting apparatus, the inferior pyramidal place of defeated ash silo arranges the air inlet of band blower fan, the bottom of defeated ash silo arranges hand operated gate valve and electric feeder, and electric feeder bottom is provided with two water conservancy diversion conveying pipelines.
Described CFB boiler is provided with boiler coal feed point and cigarette ash passing away, and boiler coal feed point place arranges chain type coal transportation belt a and chain type coal transportation belt b, and the water conservancy diversion conveying pipeline of electric feeder bottom inserts the top of chain type coal transportation belt a and chain type coal transportation belt b respectively.
Described defeated ash silo can need to be set to one or more according to the quantity combusted of CFB boiler.
Further, pulse ash remover and sack cleaner effectively can reduce bed temperature after Low Temperature Ash can be made to enter the bed of material, reduce primary air fan electric current, reduce boiler power consumption; Low Temperature Ash enters to return in stove and again participates in burning, effectively can reduce unburned combustible in fly ash, improve boiler efficiency; The recoverable amount of boiler Inner eycle ash can be improved, improve burner hearth differential pressure, the on-load ability of CFB boiler can be made greatly to strengthen; Electric feeder controls the ash quantity entering burner hearth, can ensure that the ash quantity entering boiler is even, prevents from causing because ash quantity during Geldart-D particle is unstable boiler operatiopn abnormal, ensures boiler operatiopn balance; And the ashes Action of Gravity Field blanking voluntarily in defeated ash silo can be utilized, need not be increased other and consume, there is the advantage that cinder reinjection cost is low.
The beneficial effects of the utility model are: adopt defeated ash silo ash conveying to be reconstructed mixed combustion, utilize pulse ash remover and sack cleaner effectively can filter gas collection ash, and the air inlet of blower fan can prevent ash precipitation knot in storehouse from pulling blocking discharging; After single unit system can form CFB boiler combustion, the flyash of discharging from cigarette ash passing away is collected through external collection apparatus for ash, again carrying in air flow press molding mode gets back in defeated ash silo, be assigned in chain type coal transportation belt by defeated ash silo again, reconstruct to mix with fire coal and be input to CFB boiler again and carry out resume combustion burning: can combustion rate be improved, save raw coal consumption; Change Matter Transfer state in stove, improve boiler on-load ability; Improve burner hearth pressure reduction, reduce furnace temperature, reduce primary air fan electric current, facilitate the low-temperature burning state in boiler, effectively reduce the discharge capacity of oxynitrides; By transformation, not only can improve CFB boiler on-load ability, reduce energy consumption and hearth abrasion, and can guarantee the discharge standard meeting country, be a kind of desirable energy-conservation low nitrogen combustion apparatus of CFB boiler resume combustion.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, utility model is further described.
Accompanying drawing is the energy-conservation low nitrogen combustion apparatus schematic diagram of a kind of fluidised form reconstruct CFB boiler resume combustion.
In figure: 1, pulse ash remover, 2, defeated grey feed pipe, 3, sack cleaner, 4, defeated ash silo, 5, air inlet, 6, blower fan, 7, hand operated gate valve, 8, electric feeder, 9, water conservancy diversion conveying pipeline, 10, ash silo gasification groove, 11, CFB boiler, 12, chain type coal transportation belt a, 13, chain type coal transportation belt b, 14, boiler coal feed point, 15, cigarette ash passing away, 16, height level-sensing device counting apparatus, 17, pressure vacuum relief valve.
Detailed description of the invention
Shown in accompanying drawing, the energy-conservation low nitrogen combustion apparatus of a kind of fluidised form reconstruct CFB boiler resume combustion is made up of pulse ash remover 1, defeated grey feed pipe 2, sack cleaner 3, defeated ash silo 4, air inlet 5, blower fan 6, hand operated gate valve 7, electric feeder 8, water conservancy diversion conveying pipeline 9, ash silo gasification groove 10, CFB boiler 11, chain type coal transportation belt a12, chain type coal transportation belt b13, boiler coal feed point 14, cigarette ash passing away 15, height level-sensing device counting apparatus 16, pressure vacuum relief valve 17; The defeated ash silo 4 that bottom is inferior pyramidal is set, defeated ash silo 4 central upper portion arranges pulse ash remover 1, side, top arranges defeated grey feed pipe 2, opposite side arranges ash silo gasification groove 10 and pressure vacuum relief valve 17, the sidepiece of defeated ash silo 4 arranges height level-sensing device counting apparatus 16, the inferior pyramidal place of defeated ash silo 4 arranges the air inlet 5 of band blower fan 6, the bottom of defeated ash silo 4 arranges hand operated gate valve 7 and electric feeder 8, and electric feeder 8 bottom is provided with two water conservancy diversion conveying pipelines 9.
Described CFB boiler 11 is provided with boiler coal feed point 14 and cigarette ash passing away 15, boiler coal feed point 14 place arranges chain type coal transportation belt a12 and chain type coal transportation belt b13, and the water conservancy diversion conveying pipeline 9 of electric feeder 8 bottom inserts the top of chain type coal transportation belt a12 and chain type coal transportation belt b13 respectively.
Described defeated ash silo 4 can need to be set to one or more according to the quantity combusted of CFB boiler 11, is the energy-conservation low nitrogen combustion apparatus of fluidised form reconstruct CFB boiler resume combustion.
The above; embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under the prerequisite of spirit not departing from the technology of the present invention; the various distortion that this area engineers and technicians make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determine.
Claims (2)
1. the energy-conservation low nitrogen combustion apparatus of fluidised form reconstruct CFB boiler resume combustion, is characterized in that: be made up of pulse ash remover, defeated grey feed pipe, sack cleaner, defeated ash silo, air inlet, blower fan, hand operated gate valve, electric feeder, water conservancy diversion conveying pipeline, ash silo gasification groove, CFB boiler, chain type coal transportation belt a, chain type coal transportation belt b, boiler coal feed point, cigarette ash passing away, height level-sensing device counting apparatus, pressure vacuum relief valve; The defeated ash silo that bottom is inferior pyramidal is set, defeated ash silo central upper portion arranges pulse ash remover, top one sidepiece arranges defeated grey feed pipe, opposite side arranges ash silo gasification groove and pressure vacuum relief valve, the side of defeated ash silo arranges height level-sensing device counting apparatus, the inferior pyramidal place of defeated ash silo arranges the air inlet of band blower fan, the bottom of defeated ash silo arranges hand operated gate valve and electric feeder, and electric feeder bottom is provided with two water conservancy diversion conveying pipelines.
2. the energy-conservation low nitrogen combustion apparatus of a kind of fluidised form reconstruct CFB boiler resume combustion according to claim 1, it is characterized in that: CFB boiler is provided with boiler coal feed point and cigarette ash passing away, boiler coal feed point place arranges chain type coal transportation belt a and chain type coal transportation belt b, and the water conservancy diversion conveying pipeline of electric feeder bottom inserts the top of chain type coal transportation belt a and chain type coal transportation belt b respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520072312.3U CN204693396U (en) | 2015-02-03 | 2015-02-03 | The energy-conservation low nitrogen combustion apparatus of a kind of fluidised form reconstruct CFB boiler resume combustion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520072312.3U CN204693396U (en) | 2015-02-03 | 2015-02-03 | The energy-conservation low nitrogen combustion apparatus of a kind of fluidised form reconstruct CFB boiler resume combustion |
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| CN204693396U true CN204693396U (en) | 2015-10-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520072312.3U Expired - Fee Related CN204693396U (en) | 2015-02-03 | 2015-02-03 | The energy-conservation low nitrogen combustion apparatus of a kind of fluidised form reconstruct CFB boiler resume combustion |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106152121A (en) * | 2016-08-12 | 2016-11-23 | 淄博弘科电力设备有限公司 | CFBB fly ash reinjection energy-saving equipment |
| CN106219247A (en) * | 2016-08-31 | 2016-12-14 | 无锡市华星电力环保修造有限公司 | A kind of flyash air-transport system with dedusting function |
-
2015
- 2015-02-03 CN CN201520072312.3U patent/CN204693396U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106152121A (en) * | 2016-08-12 | 2016-11-23 | 淄博弘科电力设备有限公司 | CFBB fly ash reinjection energy-saving equipment |
| CN106219247A (en) * | 2016-08-31 | 2016-12-14 | 无锡市华星电力环保修造有限公司 | A kind of flyash air-transport system with dedusting function |
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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: 20151007 Termination date: 20160203 |