CN102980179A - Circulating fluidized bed boiler bed material adding conveying device - Google Patents
Circulating fluidized bed boiler bed material adding conveying device Download PDFInfo
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- CN102980179A CN102980179A CN2012104382824A CN201210438282A CN102980179A CN 102980179 A CN102980179 A CN 102980179A CN 2012104382824 A CN2012104382824 A CN 2012104382824A CN 201210438282 A CN201210438282 A CN 201210438282A CN 102980179 A CN102980179 A CN 102980179A
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- bed material
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Abstract
The present invention provides a circulating fluidized bed boiler bed material adding conveying device, including a manual access door connected at down direction of a bed storage bin. The underneath of the manual access door is in turn connected with a compensator, a feed valve, a sending device, and a discharging elbow. The lower end of the discharging elbow is connected with a pneumatic discharging valve. The sending device includes a housing and a cylinder. The cylinder is arranged in the housing. The upper end of the cylinder is fixedly connected with the upper wall plate of the housing. The housing is also provided with a gas inlet pipe. The gas inlet pipe is communicated with the side wall of the housing of the sending device. When the bed material is sent from the bed storage bin to a boiler bed material port, the bed material transmission is unblocked, the bed material is easy to be sent to the boiler bed material port, and the device is simple in structure, low in manufacturing cost, and low in energy consumption.
Description
Technical field
The present invention relates to a kind of powder particle mixing shape material Pneumatic conveyer, be more particularly to a kind of circulating fluidized bed boiler bed material and add conveying device, belong to boiler bottom slag strength conveying arrangement field.
Background technology
It is the effect of setting up, keep material balance at boiler startup during the initial stage that CFBB starts bed material interpolation conveying device Main Function, make burner hearth air distribution plate, material returning valve and external bed place all need to tile to start the bed material by this system, the assurance CFBB is set up initial Matter Transfer in the ignition trigger stage, in the boiler startup process, if material is progressively carried by flue gas and loses, cause a pressure drop low, recycle stock reduces, also need to start the bed material this moment and add conveying device, continue to add the bed material.
The bed material that CFBB adds is exactly the solid material in the fluid bed, comprises fuel, desulfurizing agent, residue etc., fuels such as coal, living beings, municipal refuse etc.
Present existing circulating fluidized bed boiler bed material adds conveying device and has following shortcoming:
When 1, present existing circulating fluidized bed boiler bed material interpolation conveying device is transported to boiler bed material mouth to the bed material from the bed feed bin, the bed material occurs and carry not smooth situation, a material is difficult for being transferred away.
2, present existing circulating fluidized bed boiler bed material adds the transport conveyor constructions complexity, cost is large, and energy consumption is high.
Summary of the invention
The objective of the invention is to overcome above deficiency, provide a kind of circulating fluidized bed boiler bed material to add conveying device, it easily is transported to boiler bed material mouth to the bed material.
A kind of circulating fluidized bed boiler bed material adds conveying device, comprise be connected under the feed bin to manual access door, following compensator, inlet valve, transmitting apparatus, the discharging elbow of being connected to successively of described manual access door, the lower end of described discharging elbow connects pneumatic bleeder valve, transmitting apparatus comprises shell, cylindrical shell, the cylindrical shell setting in the enclosure, the upper end of cylindrical shell is fixedly connected with the wainscot of shell, also be provided with air inlet pipe on the shell, air inlet pipe is communicated with the sidewall of the shell of transmitting apparatus.
Above-mentioned circulating fluidized bed boiler bed material adds conveying device, and wherein, described air inlet pipe is provided with intake valve.
Above-mentioned circulating fluidized bed boiler bed material adds conveying device, and wherein, the port of export of described pneumatic bleeder valve is provided with air compensation ring, and first blowdown pipe is communicated with air compensation ring.
Above-mentioned circulating fluidized bed boiler bed material adds conveying device, and wherein, the upper end of described discharging elbow is provided with making-up air device, and making-up air device is connected with second blowdown pipe.
Above-mentioned circulating fluidized bed boiler bed material adds conveying device, wherein, is provided with Pneumatic balanced valve between described transmitting apparatus and the bed feed bin, and transmitting apparatus is communicated with the bed feed bin by Pneumatic balanced valve.
The invention has the beneficial effects as follows:
When 1, the present invention was transported to boiler bed material mouth to the bed material from the bed feed bin, the bed material was carried unimpeded, and the bed material easily is transported to boiler bed material mouth.
2, simple in structure, the low cost of manufacture of the present invention, energy consumption is low.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of transmitting apparatus.
The specific embodiment
The present invention is described in detail below in conjunction with accompanying drawing.
A kind of circulating fluidized bed boiler bed material adds conveying device, comprise be connected to a feed bin 1 time to manual access door 2, following compensator 3, inlet valve 4, transmitting apparatus 5, the discharging elbow 6 of being connected to successively of described manual access door 2, the lower end of described discharging elbow 6 connects pneumatic bleeder valve 7, transmitting apparatus 5 comprises shell 8, cylindrical shell 9, cylindrical shell 9 is arranged in the shell 8, the upper end of cylindrical shell 9 is fixedly connected with the wainscot of shell 8, also be provided with air inlet pipe 10 on the shell 8, air inlet pipe 10 is communicated with the sidewall of the shell 8 of transmitting apparatus 5.Be provided with intake valve 11 in air inlet pipe 10.The port of export at pneumatic bleeder valve 7 is provided with air compensation ring 12, and first blowdown pipe 13 is communicated with air compensation ring 12.
Be provided with making-up air device 14 in the upper end of discharging elbow 6, making-up air device 14 is connected with second blowdown pipe 15.Be provided with Pneumatic balanced valve between transmitting apparatus 5 and bed feed bin 1, transmitting apparatus 5 is communicated with bed feed bin 1 by Pneumatic balanced valve.
The bed material adds and carries flow process as follows:
Open manual access door 2, inlet valve 4 sealing ring pressure releases, time-delay, open inlet valve 4, the bed material beginning blanking that the bed feed bin is 1 li, the bed material falls from bed feed bin 1, the bed material is through manual access door 2, compensator 3, inlet valve 4 enters 5 li of transmitting apparatus, be through with when the time of blanking, close inlet valve 4, time-delay rear feeding valve 4 sealing rings carry out pressurising, then open pneumatic bleeder valve 7, and pneumatic bleeder valve 7 is opened intake valve 11 after opening and putting in place, gas is by first blowdown pipe 13 simultaneously, air compensation ring 12 enters the inside of the port of export of pneumatic bleeder valve 7, and the inside of the port of export of pneumatic bleeder valve 7 carried out tonifying Qi, gas is by second blowdown pipe 15 simultaneously, making-up air device 14 enters the inside of the upper end of discharging elbow 6, and tonifying Qi is carried out in the inside of the upper end of discharging elbow 6; Transmitting apparatus 5 just can utilize strength to carry the bed material, make the bed material be transported to boiler bed material mouth through discharging elbow 6, pneumatic bleeder valve 7, the tonifying Qi that while air compensation ring 12 and making-up air device 14 carry out can strengthen the flowability of bed material, be conducive to utilize the pneumatic conveying bed material, when course of conveying finishes, close intake valve 11, and gas stops to enter first blowdown pipe 13 and second blowdown pipe 15, pneumatic bleeder valve 7 is closed in time-delay, and system enters next time cyclic process.
Manually access door 2 is often opened, and just closes when the present invention has fault; When the present invention has fault, can close manual access door 2, again the present invention is carried out trouble shooting and gets rid of fault.
Because: also comprise: air compensation ring 12, first blowdown pipe 13, be provided with air compensation ring 12 at the port of export of pneumatic bleeder valve 7, first blowdown pipe 13 is communicated with air compensation ring 12; Thereby: when convey materials, gas enters the inside of the port of export of pneumatic bleeder valve 7 by first blowdown pipe 13, air compensation ring 12, and the inside of the port of export of pneumatic bleeder valve 7 carried out tonifying Qi, and improve the flowability of material, be conducive to transmitting apparatus 5 convey materials; And then: when the present invention was transported to boiler bed material mouth to the bed material from bed feed bin 1, the bed material was carried unimpeded, and the bed material easily is transported to boiler bed material mouth; And the present invention is simple in structure, low cost of manufacture, and energy consumption is low.
Because: be provided with making-up air device 14 in the upper end of discharging elbow 6, making-up air device 14 is connected with second blowdown pipe 15; Thereby: when convey materials, gas enters the inside of the upper end of discharging elbow 6 by second blowdown pipe 13, making-up air device 14, and tonifying Qi is carried out in the inside of the upper end of discharging elbow 6, improves the flowability of material, is conducive to transmitting apparatus 5 convey materials; And then: when the present invention was transported to boiler bed material mouth to the bed material from bed feed bin 1, the bed material was carried unimpeded, and the bed material easily is transported to boiler bed material mouth; And the present invention is simple in structure, low cost of manufacture, and energy consumption is low.
Because: be provided with Pneumatic balanced valve between transmitting apparatus 5 and bed feed bin 1, transmitting apparatus 5 is communicated with bed feed bin 1 by Pneumatic balanced valve; Thereby can balance pressure reduction.
Because: transmitting apparatus 5 comprises shell 8, cylindrical shell 9, is provided with cylindrical shell 9 in shell 8, and the upper end of cylindrical shell 9 is fixedly connected with the wainscot of shell 8, also comprises air inlet pipe 10, and air inlet pipe 10 is communicated with the sidewall of the shell of transmitting apparatus 5; Thereby: when convey materials, gas enters in the shell 8 and the space between the cylindrical shell 9 of transmitting apparatus 5 through air inlet pipe 10, and flow downward, the bed material that drives shell 8 inside flows, and the mixture of gas and bed material finally enters into boiler bed material mouth through discharging elbow 6, pneumatic bleeder valve 7; And then: when the present invention was transported to boiler bed material mouth to the bed material from bed feed bin 1, the bed material was carried unimpeded, and the bed material easily is transported to boiler bed material mouth; And the present invention is simple in structure, low cost of manufacture, and energy consumption is low.
In sum, when the present invention was transported to boiler bed material mouth to the bed material from the bed feed bin, the bed material was carried unimpeded, and the bed material easily is transported to boiler bed material mouth; Simple in structure, the low cost of manufacture of the present invention, energy consumption is low.
Claims (5)
1. a circulating fluidized bed boiler bed material adds conveying device, it is characterized in that, comprise be connected under the feed bin to manual access door, following compensator, inlet valve, transmitting apparatus, the discharging elbow of being connected to successively of described manual access door, the lower end of described discharging elbow connects pneumatic bleeder valve, transmitting apparatus comprises shell, cylindrical shell, the cylindrical shell setting in the enclosure, the upper end of cylindrical shell is fixedly connected with the wainscot of shell, also be provided with air inlet pipe on the shell, air inlet pipe is communicated with the sidewall of the shell of transmitting apparatus.
2. circulating fluidized bed boiler bed material as claimed in claim 1 adds conveying device, it is characterized in that described air inlet pipe is provided with intake valve.
3. circulating fluidized bed boiler bed material as claimed in claim 1 adds conveying device, it is characterized in that the port of export of described pneumatic bleeder valve is provided with air compensation ring, and first blowdown pipe is communicated with air compensation ring.
4. circulating fluidized bed boiler bed material as claimed in claim 1 adds conveying device, it is characterized in that the upper end of described discharging elbow is provided with making-up air device, and making-up air device is connected with second blowdown pipe.
5. add conveying device such as claim 1,2,3 or 4 described circulating fluidized bed boiler bed materials, it is characterized in that, be provided with Pneumatic balanced valve between described transmitting apparatus and the bed feed bin, transmitting apparatus is communicated with the bed feed bin by Pneumatic balanced valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104382824A CN102980179A (en) | 2012-11-06 | 2012-11-06 | Circulating fluidized bed boiler bed material adding conveying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104382824A CN102980179A (en) | 2012-11-06 | 2012-11-06 | Circulating fluidized bed boiler bed material adding conveying device |
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| CN102980179A true CN102980179A (en) | 2013-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012104382824A Pending CN102980179A (en) | 2012-11-06 | 2012-11-06 | Circulating fluidized bed boiler bed material adding conveying device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109552886A (en) * | 2018-12-07 | 2019-04-02 | 云南云天化石化有限公司 | Boiler plant pressurization bed material transportation system |
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| CN2250434Y (en) * | 1996-02-06 | 1997-03-26 | 电力工业部电力建设研究所 | Pulse plug flow pneumatic transport pump |
| JP2001272014A (en) * | 2000-03-28 | 2001-10-05 | Tokyo Gas Co Ltd | Fluidized bed incinerator and its combustion method |
| CN201203107Y (en) * | 2008-04-11 | 2009-03-04 | 镇江纽普兰气力输送有限公司 | Bed material adding system of circulating fluid bed boiler |
| CN101475098A (en) * | 2008-12-17 | 2009-07-08 | 阳谷祥光铜业有限公司 | High temperature smoke positive pressure conveying treatment process and special equipment thereof |
| CN201296558Y (en) * | 2008-07-28 | 2009-08-26 | 无锡市锡东橡塑机械有限公司 | Planetary cantilever spiral straw material taking machine |
| CN201416899Y (en) * | 2009-03-13 | 2010-03-03 | 郭翠苹 | Solid fuel feeder for nonmetallic industrial furnace |
| CN201875697U (en) * | 2010-08-27 | 2011-06-22 | 滕州富源低热值燃料热电有限公司 | Bed charge feeding device for vulcanizing bed boiler |
| CN202902264U (en) * | 2012-11-06 | 2013-04-24 | 镇江市电站辅机厂有限公司 | Bed material charging and conveying device of circulating fluidized bed boiler |
-
2012
- 2012-11-06 CN CN2012104382824A patent/CN102980179A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2250434Y (en) * | 1996-02-06 | 1997-03-26 | 电力工业部电力建设研究所 | Pulse plug flow pneumatic transport pump |
| JP2001272014A (en) * | 2000-03-28 | 2001-10-05 | Tokyo Gas Co Ltd | Fluidized bed incinerator and its combustion method |
| CN201203107Y (en) * | 2008-04-11 | 2009-03-04 | 镇江纽普兰气力输送有限公司 | Bed material adding system of circulating fluid bed boiler |
| CN201296558Y (en) * | 2008-07-28 | 2009-08-26 | 无锡市锡东橡塑机械有限公司 | Planetary cantilever spiral straw material taking machine |
| CN101475098A (en) * | 2008-12-17 | 2009-07-08 | 阳谷祥光铜业有限公司 | High temperature smoke positive pressure conveying treatment process and special equipment thereof |
| CN201416899Y (en) * | 2009-03-13 | 2010-03-03 | 郭翠苹 | Solid fuel feeder for nonmetallic industrial furnace |
| CN201875697U (en) * | 2010-08-27 | 2011-06-22 | 滕州富源低热值燃料热电有限公司 | Bed charge feeding device for vulcanizing bed boiler |
| CN202902264U (en) * | 2012-11-06 | 2013-04-24 | 镇江市电站辅机厂有限公司 | Bed material charging and conveying device of circulating fluidized bed boiler |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109552886A (en) * | 2018-12-07 | 2019-04-02 | 云南云天化石化有限公司 | Boiler plant pressurization bed material transportation system |
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Application publication date: 20130320 |